INSTALLATION, OPERATION, AND PREVENTATIVE ......This manual describes the installation and operation...

INSTALLATION, OPERATION, AND

PREVENTATIVE MAINTENANCE

M A N U A L INDOOR SSPA P/N 01040244R7

For Use With Model Numbers...

Service Center Headquarters and Design Center West Coast Operations 811 Hansen Way Palo Alto, CA 94303 Manufacturing East Coast Operations 45 River Drive Georgetown, ON Canada L7G 2J4

S5CI S4UI S5XI

INDOOR SSPA

II DOC.01040042 REV.6

PROPRIETARY INFORMATION The design and other information contained in this document are provided solely for the purposes of operating and maintaining CPI equipment. Except for rights expressly granted by contract, all such information is the exclusive property of CPI Satcom Division. This document may not be duplicated, in whole or in part, or be used for manufacture without written permission of CPI, Satcom Division. Copyright @ 2009 by Communications & Power Industries. All rights reserved.

INDOOR SSPA

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TABLE OF CONTENTS Operational Warnings Safety Section

0103274800 0104002200

Rev.2 Rev.1

Chapter 1 Introduction

0104004300 Rev.6

Chapter 2 Unpacking & Installation

0104004400 Rev.6

Chapter 3 External Interfaces

0104004500 Rev.6

Chapter 4 Initial Power-On and Checkout

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Chapter 5 Operation

0104008600 Rev.7

Chapter 6 Maintenance

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Chapter 7 Functional Tree

0104008900 Rev.4

Chapter 8 Redundant Switch Option

0104001900 Rev.3

Chapter 9 Drawings

0104008800 Rev.5

Appendix A Customer Support Warranty Information

0104002500 0103098900

SC4133

Rev.1 Rev.5 Rev.-

Appendix B Optional L-Band BUC

0104002400 Rev.3

INDOOR SSPA

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INTRODUCTION

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Chapter 1 Introduction

Table of Contents

CHAPTER 1 INTRODUCTION ............................................................................................................1-1

1.1 OVERVIEW.................................................................................................................................1-3

1.2 GENERAL DESCRIPTION .......................................................................................................1-4

1.3 STANDARD FEATURES ...........................................................................................................1-4 1.3.1 COMPACT RACK HEIGHT ................................................................................................1-5 1.3.2 FORWARD AND REFLECTED RF POWER METERING................................................1-5 1.3.3 REAL TIME CLOCK............................................................................................................1-5 1.3.4 LOCAL OR REMOTE M&C ................................................................................................1-5 1.3.5 GRAPHICAL DISPLAY.......................................................................................................1-5 1.3.6 FRONT PANEL LED’S ........................................................................................................1-6 1.3.7 EVENT LOG .........................................................................................................................1-6 1.3.8 FAULT LOG .........................................................................................................................1-6 1.3.9 HISTOGRAM LOG...............................................................................................................1-6 1.3.10 AUTO FAULT RECYCLE ...................................................................................................1-6 1.3.11 INTERNAL TEST POINTS ..................................................................................................1-6 1.3.12 QUICK REPLACEMENT OF POWER SUPPLY, BRICK, OR FAN .................................1-6 1.3.13 RS-232/422/485 REMOTE CIF PROTOCOL.......................................................................1-6 1.3.14 4 PROGRAMMABLE DISCRETE RELAY OUTPUTS......................................................1-6 1.3.15 AUTOMATIC POWER COMPENSATION ........................................................................1-7 1.3.16 VARIABLE GAIN ATTENUATION ...................................................................................1-7 1.3.17 VARIABLE OR AUTOMATIC FAN SPEED......................................................................1-7 1.3.18 TRANSPORTABLE MEMORY...........................................................................................1-7

1.4 OPTIONS......................................................................................................................................1-7 1.4.1 REMOTE CONTROL PANEL (1RU) ..................................................................................1-8

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1.4.2 BLOCK-UP CONVERTER (BUC).......................................................................................1-8 1.4.3 BUC BYPASS .......................................................................................................................1-8 1.4.4 REDUNDANT POWER SUPPLIES.....................................................................................1-8 1.4.5 TRANSIENT SURGE SUPPRESSION ................................................................................1-9 1.4.6 ETHERNET LAN INTERFACE.........................................................................................1-10 1.4.7 REDUNDANT/PHASE COMBINED SWITCH SYSTEM................................................1-10 1.4.8 INPUT AND OUTPUT POWER SAMPLING PORTS......................................................1-10 1.4.9 EXHAUST DUCT ...............................................................................................................1-10

1.5 ABOUT THIS MANUAL..........................................................................................................1-10

1.6 CONVENTIONS........................................................................................................................1-11 1.6.1 NOTES AND CAUTIONS..................................................................................................1-11 1.6.2 ELECTRICAL OR RF WARNINGS ..................................................................................1-11 1.6.3 TEXT CONVENTIONS......................................................................................................1-12

List of Figures Figure 1-1. Indoor SSPA (Front View) ................................................................................................1-3

List of Tables Table 1-1. Indoor SSPA Amplifiers......................................................................................................1-3 Table 1-2. Weight and Dimensions......................................................................................................1-4 Table 1-3. Redundant Power Supply Parts and Quantity Supplied ...............................................1-9

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1.1 Overview This manual describes the installation and operation (I&O) procedures of CPI’s Indoor Units (IDU) 100W, 125W, and 225W SSPA (Solid State Power Amplifier) for service in satellite earth stations.

Technical maintenance for repair and troubleshooting is covered in the Service Manual.

The IDU SSPA is designed specifically for indoor operation, providing uplink service in fixed satellite terminals, “fly-away” earth stations and digital satellite newsgathering vehicles.

Table 1-1 shows the model numbers, frequency ranges, and power outputs of these amplifiers. Figure 1-1 is a photograph of an IDU SSPA.

Table 1-1. Indoor SSPA Amplifiers

Model Number Frequency Range (GHz)

Rated Saturated Power (Watts)

Rated Saturated Power (dBm)

S5CIA 5.850 – 6.425 125 51

S5CIB 5.850 – 6.425 225 53.5

S5CIC 5.850 – 6.725 100 50

S5CID 5.850 – 6.725 200 53

S5XI 7.900 – 8.400 200 53

S4UIA 13.750 – 14.500 100 50

S4UIB 14.000 – 14.500 100 50

Figure 1-1. Indoor SSPA (Front View)

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1.2 General Description The Indoor SSPA is a self-contained unit consisting of a power supply, a solid state brick containing an array of Gallium Arsenide (GaAs) FET devices, a microprocessor driven controller, and cooling system. Typical model weight and dimensions are shown in table 1-2.

Table 1-2. Weight and Dimensions

Frequency Band Dimensions (WxHxD) Weight

C Band 19.00x5.25x26.00 in. or 483.0x133.0x660.0 mm. 80 lbs or 36.3 kg

Ku Band 19.00x5.25x26.00 in. or 483.0x133.0x660.0 mm. 72 lbs or 32.7 kg

X Band 18.36x6.99x25.94 in. or 466.3x177.6x659.0 mm. 76 lbs or 36.0 kg

The overall dimensions for C or Ku Band models, excluding switches, connectors, and mounting brackets is (WxHxD) inches or 483X133X660 mm. For X Band the overall dimensions, excluding switches, connectors, and mounting brackets are (WxHxD) inches or

The SSPA’s power supply operates with an AC input line voltage of 100–240 ± 10% VAC at any frequency between 47 and 63 Hz. The state of the art power supply regulates power to the solid state brick, microprocessor driven controller, and cooling system.

The SSPA’s solid state brick produces a linear output power of 100W, 125W, or 225W. The microprocessor driven controller simplifies the local and remote interfaces for monitor and control functions. The front panel display is easily navigated using the arrow and menu keys.

The SSPA is forced-air cooled with integral fans. The cooling air enters the front of the unit and exits the rear panel. A minimum of 4 inches is required for the air intake and exhaust clearance. Special attention has been given to SSPA’s ability dissipate thermal energy. The SSPA uses a heatsink, variable speed fans, and over temperature switches to regulate heat produced by the amplifier during operation. These protective features minimize damage to the electrical components, thereby prolonging the SSPA’s operating life.

1.3 Standard Features Standard features include:

• Compact rack height

• Forward and reflected RF power metering

• Real Time Clock

• Local or remote M&C

• Graphical display

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• Front panel LED’s

• Event log

• Fault log

• Histogram log

• Automatic fault recycle

• Internal test points

• Quick power supply, brick, or fan replacement

• RS-232/422/485 remote CIF protocol

• 4 programmable discrete relay outputs

• Automatic power compensation

• Variable gain attenuation

• Variable or automatic fan speed

• Transportable memory

1.3.1 Compact Rack Height This feature allows more amplifiers to fit into a rack assembly.

1.3.2 Forward and Reflected RF Power Metering The forward and reflected RF power metering allows the operator to read how much RF power is being transmitted from the SSPA and how much of that power is reflected back to the SSPA.

1.3.3 Real Time Clock The real time clock can be updated and set by the operator using the network time protocol (NTP) or using the front panel display menu key.

1.3.4 Local or Remote M&C The SSPA can be operated locally using the front panel display in local mode only. It can also be operated remotely using an RS-422/232 cable to a computer interface.

1.3.5 Graphical Display The graphical display is located on the front panel and includes RF metering, power supply unit (PSU) display, and fan speed display.

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1.3.6 Front Panel LED’s Front panel LED’s display amplifier status’s such as transmit, standby, fault, on-line, and remote.

1.3.7 Event log This feature captures events at preset time interval or when there is a change in status. The entry event log puts a time and date stamp on every entry. After 2000 entries the next entry will overwrite the oldest one.

1.3.8 Fault Log The fault log is used to capture in-depth information and can capture 5 separate faults. The most recent faults are kept in memory, discarding the oldest fault as a new fault occurs.

1.3.9 Histogram Log The histogram log keeps a record of the amplifier operating conditions over time.

1.3.10 Auto Fault Recycle If the amplifier fails it will automatically recycle the fault and try to return to its previous state. This feature allows quick recovery after minor faults.

1.3.11 Internal Test Points Internal test points have been built into the SSPA allowing for easy measurement and troubleshooting.

1.3.12 Quick Replacement of Power Supply, Brick, or Fan

Replacement of the power supply, brick, or fan can be done in less than 1 hour.

1.3.13 RS-232/422/485 Remote CIF Protocol The SSPA is equipped with a remote CIF protocol that can handle RS-232/422/485.

1.3.14 4 Programmable Discrete Relay Outputs The D-Type connector J6 at the back of the SSPA has 4 discrete programmable relay outputs. The outputs can be programmed for any fault or alarm.

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1.3.15 Automatic Power Compensation The amplifier can be set to achieve a constant output power using the variable gain attenuator automatically. The attenuator will compensate for input drive level changes as well as temperature changes.

1.3.16 Variable Gain Attenuation The SSPA overall gain can be adjusted up to 23dB in 0.1dB steps.

1.3.17 Variable or Automatic Fan Speed Fan speed can be adjusted manually or automatically as required by the operator. The fans will automatically operate at full power if there is any over temperature alarm.

1.3.18 Transportable Memory The SSPA has built in transportable memory that holds serial numbers and calibration data.

1.4 Options Optional equipment aids in the amplifiers performance, user friendliness, and reliability. Options include the following:

• Remote control panel

• Block-up converter (BUC)

• BUC bypass

• Redundant power supplies

• Transient surge suppression

• Ethernet LAN interface

• Redundant or phase combined switch system

• Input and output sample ports

• Exhaust duct

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1.4.1 Remote Control Panel (1RU) The remote control panel is rack-mountable, 19 inches wide, 1.75 inches high, 9 inches deep and weighs 5 lbs.

The remote control panel duplicates most of the controls and indicators of the front control panel. It communicates to the amplifier via a RS-485 serial interface. The panel requires a source of AC power and includes the connectors for the interconnect cable from the amplifier. A specific length of the interconnect cable can be provided (Option). The remote panel can itself be controlled over a LAN.

1.4.2 Block-Up Converter (BUC) A L-band BUC can be integrated into the amplifier’s enclosure. This allows the user to operate the SSPA with an L-Band input frequency of 950 to 1825 MHz. The BUC converts the L-Band input frequency to the output frequency of the SSPA.

CPI’s BUCs use DRO (Dielectric Resonant Oscillators) that can operate independently or be phase locked to a high-stability reference. The reference signal is brought into the amplifier by multiplexing the reference onto the cable carrying the input signals, so that no extra cables are required.

This simplifies the end-user's system design. Options are available for internal or multiplexed reference signals. For more information about BUCs, refer to Appendix C in this manual.

When operating a SSPA with a BUC, the operator may select the BUC’s frequency lock fault output to either trigger the amplifier with an alarm (notification, but no action) or a fault (in which case the amplifier would cease transmitting upon becoming unlocked). This selection is made via the front panel menu setup screen.

1.4.3 BUC Bypass The BUC Bypass allows the amplifier to be used both with the carrier frequency or L-Band I/F.

The operator can choose to bypass the BUC L-Band input and directly input the carrier frequency into the SSPA at J2 (RF input), or the operator is able to use the BUC L-Band input at J16 by connecting the RF coaxial jumper cable (provided) from J17 (BUC output) to J2 (RF input).

1.4.4 Redundant Power Supplies The redundant power supply option provides an external 1RU rack that mounts in the rack beneath the amplifier. This rack can contain up to 4 hot-swappable power supply modules. Each module is capable on its own, of running the amplifier. Any additional modules share the total load, operate cooler, and extend the life of each module.

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The main RF voltage will be supplied using all available modules to a maximum of four total.

The extra power supplies are hot swappable (able to be changed while the unit is operating). At least one module is required to operate the amplifier. The operator can observe the status of the power supply using the front panel display, which will update with each module insertion/extraction. Table 1-3 provides a list of parts provided for each configuration of redundant power supply.

Table 1-3. Redundant Power Supply Parts and Quantity Supplied

Parts List N+0 (Qty) N+1 (Qty) N+2 (Qty) N+3 (Qty)

Screw 10-32 x ½ 1290050100 4 4 4 4

Connector Lock and Entry 5350002870 1 2 3 4

Power Supply Module 7850111370 1 2 3 4

Power Supply Rack 7850111770 1 1 1 1

Blank Panel 7850111800 3 2 1 0

DC Power Harness 0104466500 1 1 1 1

Redundancy Alarm Harness 0104466700 1 1 1 1

Note: Do not disconnect the DC Power Harness on the Power Supply Rack. Reversing the polarity while reconnecting the DC Power Harness will cause permanent damage and void the warranty.

Note: Do not remove all redundant power supplies while Indoor SSPA is in operation.

1.4.5 Transient Surge Suppression The transient surge suppression module allows the SSPA to handle 6KV surges without effecting operation. The TVSS module is rated for 10,000 Amps and 300 Joules. This option allows the amplifier to be compliant with EN61000-4-5, 6kV voltage surges: both common mode and differential mode power line voltage surges.

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1.4.6 Ethernet LAN Interface The Ethernet port allows the SSPA to be monitored and controlled from anywhere that the local area network (LAN) can reach.

1.4.7 Redundant/Phase Combined Switch System The redundant switch system is detailed in the dedicated manual that accompanies the switch. The available switch systems include redundant configurations as well as power/phase combined systems. All switch systems are displayed graphically on the front panel display.

1.4.8 Input and Output Power Sampling Ports The power sampling ports provide a coupled sample of the input or output power signals. Either a RF signal analyzer or a RF power meter can be connected at these ports, to monitor the input or output signals.

1.4.9 Exhaust Duct Use of the exhaust duct allows the evacuation of the hot exhaust air to an exterior location, helping to prevent heat build-up in the amplifiers indoor location. The exhaust duct should transition to an 8” duct within 1m of the output, or provide slightly negative pressure to prevent amplifier over heating due to excessive backpressure.

1.5 About This Manual This manual describes the installation, operation, maintenance, and troubleshooting procedures for the Indoor SSPA. Because specialized training is required for some phases of installation and repair, parts of this manual are directed only to trained personnel. Where appropriate, warnings appear to caution the operators or technicians of potential RF and high voltage hazards.

Each chapter begins with a clearly marked tab that allows rapid access to a particular section. The “Table of Contents”, “List of Figures”, and “List of Tables” are included at the beginning of this volume.

Chapter 1, “Introduction”, provides a brief overview of the amplifier and this manual.

Chapter 2, “Unpacking and Installation”, provides instructions on preparing the site for installation, how to uncrate, and make necessary electrical connections.

Chapter 3, “External Interfaces”, describes built-in interfaces to external devices and gives detailed descriptions for each connection.

Chapter 4, “Initial Power-On and Check Out”, describes pre-power procedures on how to use the control panel for start up and control.

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Chapter 5, “Operation”, provides procedures for operation, and turn off.

Chapter 6, “Maintenance”, contains procedures for routine maintenance. Troubleshooting and repair information is contained in the “Indoor SSPA Service Manual”.

Chapter 7, “Functional Tree”, contains a functional tree of the front panel screens.

Chapter 8, “Redundant Switch Option”, contains information on installing and operating a redundant switch system.

Chapter 9, “Drawings and Schematics”, contains drawings of significant parts of the Indoor SSPA. It includes detailed schematics for the AC subsystems, DC subsystems, RF subsystems, interconnections, and over all architecture of the system.

Appendices, contains supplementary data.

1.6 Conventions Symbols and conventions used throughout this manual are described in the following sections.

1.6.1 Notes and Cautions General notes, cautions, or warnings, provide additional commentary or technical information. They identify conditions, operations, or procedures that could potentially damage the equipment, induce physical strain, maim, or kill people. This includes heavy weights, sharp edges or protrusions, and chemical hazards. They are identified by the following symbol:

1.6.2 Electrical or RF Warnings Electrical warnings identify conditions, operations, or procedures that expose the operator to potentially lethal high voltages and are identified by the following symbol:

Microwave radiation warnings identify conditions, operations, or procedures that expose people to microwave radiation sources that could cause serious injuries, particularly to the eyes and are identified by the following symbol:

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1.6.3 Text Conventions When operator action is required for software entries, the action required is capitalized and the action object is capitalized and may be bold for emphasis. For example, PRESS ENTER.

Labels for Front Panel controls and indicators are capitalized. For example, RESET.

Sometimes the actual labels are abbreviated. For Example, TWT TEMP.

Italics are used in references to other manuals and other parts of this manual, such as: See Service Manual.

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Chapter 2 Unpacking & Installation

Table of Contents

CHAPTER 2 UNPACKING & INSTALLATION................................................................................2-1

2.1 OVERVIEW.................................................................................................................................2-3

2.2 PRE-INSPECTION .....................................................................................................................2-3

2.3 UNPACKING...............................................................................................................................2-3 2.3.1 EQUIPMENT AND ACCESSORIES ...................................................................................2-3 2.3.2 CHECK PACKING SLIPS....................................................................................................2-3 2.3.3 POST UNPACKING INSPECTION .....................................................................................2-3

2.4 LOCATION OF INSTALLATION............................................................................................2-4

2.5 PREPARING FOR INSTALLATION.......................................................................................2-4

2.6 INSTALLATION.........................................................................................................................2-4 2.6.1 MECHANICAL INSTALLATION.......................................................................................2-4 2.6.2 GROUNDING .......................................................................................................................2-5 2.6.3 COOLING CONSIDERATIONS ..........................................................................................2-5 2.6.4 ELECTRICAL POWER CONNECTIONS ...........................................................................2-5

2.6.4.1 PRIME POWER .................................................................................................................2-6 2.6.5 WAVEGUIDE CONNECTIONS ..........................................................................................2-8 2.6.6 RF COAXIAL CONNECTIONS...........................................................................................2-9

2.6.6.1 RF INPUT (J2)...................................................................................................................2-9 2.6.6.2 RF OUTPUT MONITOR (J4) (OPTIONAL) .....................................................................2-9 2.6.6.3 RF INPUT MONITOR (J5) (OPTIONAL) .......................................................................2-10 2.6.6.4 BUC INPUT WITH BUC BYPASS (J16) (OPTIONAL)...................................................2-10 2.6.6.5 BUC BYPASS (J17) (OPTIONAL) ...................................................................................2-10


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List of Figures FIGURE 2-1. CONNECTOR LOCATIONS (C BAND SHOWN) .........................................................................2-7 FIGURE 2-2A. TIGHTENING SEQUENCE (C-BAND) ....................................................................................2-8

List of Tables TABLE 2-1. PRIMARY POWER CABLE CONNECTIONS................................................................................2-6 TABLE 2-2. WAVEGUIDE FLANGE SCREW TORQUE ..................................................................................2-9


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2.1 Overview This section contains instructions on preparing the site for installation, how to unpack, and make necessary electrical connections for the Indoor SSPA.

2.2 Pre-inspection Before unpacking the equipment, inspect the exterior and the interior of the shipping containers for evidence of damage in shipment. If damage is evident, immediately contact the carrier that delivered the equipment and submit a damage report. Failure to do so could invalidate future claims.

2.3 Unpacking

Note: Save all packing material until inspections and installation are complete. It is recommended that any factory returns be shipped in their original shipping container. See Appendix A for Return information.

2.3.1 Equipment and Accessories Carefully unpack and remove the following items from the shipping container(s):

• The SSPA • Cables and accessories • The packing slips

• Manual • Optional accessories

2.3.2 Check Packing Slips After unpacking the Indoor SSPA verify all items on the packing slips have been received.

2.3.3 Post Unpacking Inspection Inspect all items for evidence of damage in shipment. If damage is evident, immediately contact the carrier that delivered the equipment to file a claim. Failure to do so could invalidate future claims. Save the packing boxes for inspection by the carrier’s agent to validate damage claims. Take photos of marks on boxes and crates. Check the equipment thoroughly for damaged or loose parts.


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2.4 Location of Installation This amplifier is an IDU (Indoor Unit). It is only intended for installation in an indoor location that provides reasonable temperature control and shielding against direct sunlight. Further, the location chosen must be clean and dry.

WARNING! ELECTRICAL WARNINGS IDENTIFY CONDITIONS, OPERATIONS, OR PROCEDURES THAT EXPOSE THE OPERATOR TO POTENTIALLY LETHAL HIGH VOLTAGES.

2.5 Preparing For Installation It is recommended that an electrical inspection for verification of customer interface connections be performed before and after the installation of the equipment in its final operational location; the following basic steps must be completed:

• Verify that the Indoor SSPA RF input and output are properly terminated.

• Verify that all Indoor SSPA user interface connectors that to be used match the pin-out data provided in this section.

• Verify the prime power connection to the Indoor SSPA is the correct line voltage.

Warning: Operating the Indoor SSPA amplifier without proper terminations is a safety hazard and will void the warranty. See specifications in the “drawings” chapter.

The amplifier is air-cooled. The intake and exhaust areas must not be blocked. For further information, refer to the respective outline drawing in the “Drawings” chapter and the yellow Operational Warning document located at the front of this manual.

2.6 Installation Installation of the IDU SSPA is detailed in the following sections.

2.6.1 Mechanical Installation

Caution: Due to the weight of the Indoor SSPA, two persons are required for installation into the final cabinet assembly.

The IDU SSPA is designed for rack slide mounting in a standard 19-inch (48.3 cm) wide cabinet. Use the following procedure for this installation:

1. Determine the required front panel arrangement and exact panel locations for the IDU SSPA on the rack cabinet.


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2. Mount the mating slides (supplied) to the rack cabinet using the supplied hardware.

3. Install the IDU SSPA on the mating slides and securely fasten the front panel to the rack cabinet rails.

Once the unit is installed on the slides and fastened to the cabinet, the remaining installation procedures can be completed.

2.6.2 Grounding

Caution: Proper grounding of the IDU SSPA Amplifier to the station ground buss or to earth ground is necessary for personnel and equipment safety. The ground post on the IDU SSPA rear panel must be used for this purpose.

Proper grounding of the IDU SSPA amplifier to the station ground buss or to earth ground is necessary for personnel and equipment safety. The 10-32 in. threaded ground stud on the amplifier rear panel is used for grounding. Wire that is #12AWG or larger is recommended to be used for the grounding cable.

2.6.3 Cooling Considerations The Indoor SSPA is cooled entirely by forced airflow. Refer to outline drawing, 01040500-00 in the “Drawings” chapter for clearances required.

The enclosure utilizes several internally mounted DC fans to cool the power supply and amplifier module. These fans draw the air through the front panel and exhaust air through the duct located on the rear panel. The exhaust of the Indoor SSPA may be 20°C above ambient temperature and may dissipate 1200 W of heat.

To prevent excessive heat build-up, it is recommended that the exhaust air be ducted away from the Indoor SSPA. The optional air duct should be used with a transition from 5” to 8” to minimize backpressure.

To insure proper operation of the amplifier, there must be at least four inches of clearance on the end of the unit that has the exhaust ducts.

2.6.4 Electrical Power Connections The locations of the connectors referred to in this section are shown in Figure 2-1. Electrical interconnections to the system consist of prime power, ground strap, RF connections, and external connections including computer serial interface (CIF), discrete monitor, and waveguide switch interface.


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2.6.4.1 Prime Power

WARNING! DO NOT APPLY POWER TO THE AMPLIFIER UNTIL DIRECTED TO DO SO IN THE PROCEDURE.

Prime power is applied to connector J1 (AC IN) located on the rear panel of the amplifier. J1 is an IEC-60320-C20 INLET type connector; mating connector is IEC-60320-C19 cable mount. It must be wired provide prime power of 100Vac to 240Vac ±10 (nominal), 47-63 Hz. This voltage is indicated on a label located on rear panel.

For nominal 120VAC Power grids, the unit must be connected to main power through a circuit breaker or fuse rated for 20A.

For nominal 230VAC Power grids, the unit must be connected to main power through a circuit breaker or fuse rated for 10A.

The local utility company should approve the fuse or breaker. Ensure that the fuse or breaker’s interrupt rating meets the appropriate installation requirements.

A prime power mating connector is provided in the ship kit with the unit. The pins of the prime power connector should be wired as indicated in Table 2-1.

Table 2-1. Primary Power Cable Connections

J1 Description

Pin 1 Line or Phase A

Pin 2 Neutral or Phase B

Pin PE Potential Earth

Prepare the prime power cable but do not connect the cable to the amplifier at this time.

The user is responsible for supplying the appropriate connector for the main high voltage connection at the end of the cable. Only a licensed electrician can connect the amplifier directly to the mains.

Note: The customer is responsible for verifying this power cable connection with their local power utility. If unsure, consult a licensed electrician.


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Figure 2-1. Connector Locations (C band shown)


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2.6.5 Waveguide Connections

Note: Waveguide pressurization with dry air or nitrogen in the range of 0.5 to 1.0 PSI (referenced to atmosphere at sea level) is recommended on all SSPA’s.

The output waveguide flange of the Indoor SSPA is located on the rear panel and labelled J3. J3 is a threaded waveguide flange. An o-ring gasket is supplied in the ship kit. Refer to figure 2-2 for waveguide flange tightening sequences and table 2-2 for recommended screw torque.

To install the waveguide flange, proceed as follows:

• Install the o-ring gasket supplied in the ship kit to the output flange of the Indoor SSPA.

• Position the interconnecting waveguide so that it aligns precisely with the waveguide flange at the rear of the IDU SSPA.

Note: If flange alignment is not precise or if the installation is subject to motion or severe vibration, a flexible waveguide section should be installed between the output of the IDU SSPA and the interconnecting waveguide.

WARNING! IF THE WAVEGUIDE IS NOT ATTACHED PROPERLY, RF RADIATION WILL LEAK OUT AND CREATE AN OPERATIONAL SAFETY HAZARD.

WARNING! DO NOT OPERATE THE SSPA WITHOUT A WAVEGUIDE OR AN RF LOAD CONNECTED TO THE RF OUTPUT PORT. NEVER LOOK INTO THE WAVEGUIDE OPENING WHEN THE SSPA IS POWERED ON.

Figure 2-2a. Tightening Sequence (C-Band)


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Table 2-2. Waveguide Flange Screw Torque

Frequency Band Waveguide Flange Screw Qty. Screw Size (in) Screw Torque (in-lbs)

C-Band CPR-137 Grooved 8 10-32 32

X-Band CPR-112 Grooved 8 8-32 18

Ku-Band WR-75 Grooved 4 6-32 8.5

• After alignment is verified in all three planes, loosely attach the interconnecting waveguide to the output waveguide flange of the Indoor SSPA with the screws, flat-washers, and lock-washers provided. Start all bolts and verify proper alignment.

• A progressive tightening procedure is recommended. Tighten each bolt until the lock-washer starts to compress and then proceed to the next bolt, until you have partially tightened all the bolts. Tightening sequence is shown in figure 2-2.

• Starting with the first bolt, fully tighten them to the desired torque level. Do not over-tighten the screws because this can strip the threads or distort the mating flange.

2.6.6 RF Coaxial Connections Refer to Figure 2-1 previously in this chapter for connector locations. All connectors are N-type female, and mate with a N-type male connectors.

Note: Position the coaxial cables so that there is no stress on connectors J2, J4, J5, J16, and J17. Stress on any connector may cause permanent damage.

Note: Cross-threaded coaxial connectors do not make proper contact and may cause large losses of the SSPA’s output signal.

Once the unit has been installed on-site, and the appropriate power cables and waveguides have been assembled, the RF connections can be made.

2.6.6.1 RF Input (J2) The RF Input port is located on the rear panel of the SSPA and consists of a 50-Ω, N-type, female connector. The RF input signal is applied to this port for amplification. Prepare a user-supplied input cable and connect it to RF input connector J2.

2.6.6.2 RF Output Monitor (J4) (Optional) The RF output monitor port is located on the front panel of the SSPA and consists of a 50Ω, N-type, female connector. Use this port to monitor the RF Output. An RF output monitor cable can be connected directly to connector J4 and has -55 dB nominal coupling. The calibration data is available on the front panel display.


2-10 DOC.01040044 REV.6

2.6.6.3 RF Input Monitor (J5) (Optional) The RF input power can be monitored from this 50-Ω, N-type, female connector, located on the back panel at a -20 dB nominal coupling. The calibration data is available on the front panel display.

2.6.6.4 BUC Input with BUC Bypass (J16) (Optional) This port is the L-Band input frequency to the BUC when the BUC bypass is installed. The 10MHz reference to the BUC is supplied either internally or multiplexed with the L-Band input signal.

2.6.6.5 BUC Bypass (J17) (Optional) The BUC bypass J17 must be connected to RF input J2 using the RF jumper cable provided if the L-Band input signal is applied to J16. Connect the input signal directly to J2 if the frequency band of the SSPA is being used and the BUC is bypassed.

EXTERNAL INTERFACES

DOC.01040045 REV.6 3-1

3-1

Chapter 3 External Interfaces

Table of Contents

CHAPTER 3 EXTERNAL INTERFACES ...........................................................................................3-1

3.1 OVERVIEW.................................................................................................................................3-2 3.1.1 RS-232 SERIAL PORT .........................................................................................................3-2 3.1.2 RS-422/485 SERIAL PORT ..................................................................................................3-3 3.1.3 DIAGNOSTIC INTERFACE ................................................................................................3-3 3.1.4 DISCRETE INTERFACE......................................................................................................3-4 3.1.5 ETHERNET INTERFACE CONNECTOR (J14) (OPTIONAL)..........................................3-6

List of Figures FIGURE 3-1. RS-485 CABLE ......................................................................................................................3-3

List of Tables TABLE 3-1. J7 CIF SERIAL PORT RS-232 PIN-OUT ...................................................................................3-2 TABLE 3-2. J6 DISCRETE INTERFACE PIN OUT..........................................................................................3-4 TABLE 3-3. DISCRETE OUTPUT FAULTS AND ALARMS OF J6....................................................................3-5 TABLE 3-4. DISCRETE OUTPUT FACTORY SETTINGS ................................................................................3-6

EXTERNAL INTERFACES

3-2 DOC.01040045 REV.6

3.1 Overview The Indoor SSPA has external interfaces that allow it to connect to many optional external devices. The interfaces located on at the rear of the unit are:

• CIF serial port RS-232

• CIF serial port RS-422/485

• Diagnostic Interface

• Discrete interface

• Ethernet interface

3.1.1 RS-232 Serial Port The operator can use a PC with a RS-232 adapter at distances up to 3m. Table 3-1 can be used to design a cable or a cable may be purchased to connect the Indoor SSPA directly to a computer. The CIF protocol must be set to RS-232 using the front panel setup menu.

Note: TX and RX functionality is from the standpoint of the amplifier: TX is an output and RX is an input.

Table 3-1. J7 CIF Serial Port RS-232 Pin-out

Pin Number Function

1 Chassis GND

2 RS-232C Tx

3 RS-232C Rx or RS-422/485 Rx -

4 RS-422/485 Tx -

5 RS-232 or RS-422/485 GND

6 RS-422/485 Tx +

7 No Connect

8 No Connect

9 RS-422/485 Rx +

EXTERNAL INTERFACES

DOC.01040045 REV.6 3-3

3.1.2 RS-422/485 Serial Port The operator can use a PC with a RS-422/485 adapter at distances up to 1Km. A control unit connected to J7 can be used to remotely monitor and control the Indoor SSPA. J7 is a 9-pin D-type connector. An ITT Canon DEU-9P D-SUB male or equivalent must be used for the mating connector. The CIF Protocol must be set to RS422/485 using the front panel menu setup screen.

Note: TX and RX functionality is from the standpoint of the amplifier: TX is an output and RX is an input.

Interconnect cables should be wired for RS-422/485. A cable assembly similar to CPI drawing #01032346 (see the “Drawings” chapter) should be used for RS-422/485 communication with the optional remote panel unit (1RU). A wiring diagram for a cable using RS-422/485 is shown in Figure 3-1.

Note: This connection is typical and represents the necessary connections to the CPI Remote Panel. User’s connection device may be different.

Figure 3-1. RS-485 Cable

3.1.3 Diagnostic Interface The diagnostic interface is only defined for CPI diagnostic purposes. It is located at the front of the Indoor SSPA behind the removal filter. Make no connections to these pins.

EXTERNAL INTERFACES

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3.1.4 Discrete Interface The operator may wish to monitor several critical internal fault or alarm parameters using dry contacts. Alarms and faults can be programmed to dry contacts.

The pin-out for connector J6 is shown in Table 3-2.

Table 3-2. J6 Discrete Interface Pin Out

Pin Number Function

1 Relay 1 COM

2 Relay 1 NO

3 Relay2 NC

4 Relay 3 COM

5 Relay 3 NO

6 Relay 4 NC

7 Not Connected

8 Not Connected

9 Relay 1 NC

10 Relay 2 COM

11 Relay 2 NO

12 Relay 3 NC

13 Relay 4 COM

14 Relay 4 NO

15 No Connect

The discrete interface, allows very simple remote monitoring of amplifier status and health by a simple PLC or current loop implementation by the operator.

There are 4 dry contact relay outputs available to the user. Both normally open (NO) and normally closed (NC) contacts are provided. Not every Fault or Alarm is to be monitored by the discrete relay contacts. Please consult Table 3-3, for a complete list of faults and alarms that can be mapped to any of the four relay outputs.

The desired pin-out monitoring is chosen via the front panel menu item.

Typically, the NC contacts are used, and a loop current is run through the contacts. When the amplifier is running without faults, software enables all the relays, the NC contacts are closed, and current flows in the loop. If a fault occurs, the contacts will open and interrupt the loop current, signaling an alarm to the external monitoring circuit. Note this allows detection of amplifier faults, general amplifier failure, power failure and broken or disconnected monitoring circuit. Use of the NO contacts will only protect against amplifier faults.

EXTERNAL INTERFACES

DOC.01040045 REV.6 3-5

Table 3-3. Discrete Output Faults and Alarms of J6

Alarm/Fault Alarm Fault Condition

Inactive Relay is Inactive to Fault or Alarm

Summary Fault X Any Fault Condition

Summary Alarm X Any Alarm Condition

High RF Output Fault X Level User-defined

Low RF Output Fault X Level User-defined

High Reflected RF U U Level User-defined under 45W

Over Temp Fault X Temperature >78 ºC

AC Fault X Module Fault or AC in <85VAC

Bias Fault X Negative Bias Voltage >-8V or Temp 80-85ºC

High Drain Current X

>120 A or 60 A (Factory Settable) Note: Depending on model.

BUC Unlock U U BUC LO loss of lock

Brick Comm. Fault X RF Brick will not communicate with M&C

High RF Warning X Level User-defined

Low RF Warning X Level User-defined

High Temp Alarm X User Settable (70 ºC default)

High Hot Spot Temp. X Hot Spot >~78 ºC

Low Drain Voltage X <9.6 V (Factory Settable)

High Drain Voltage X >10.6 V (Factory Settable)

BBRAM Bad X RAM not Battery Backed

PSU Diode Temp Alarm X PSU Diode Temp > 95degC

PSU FET Temp Alarm X PSU FET Temp > 97degC

FAN Tach Alarm X Fan speed < 90% of Average Fan speed

Note: X indicates Factory Set, U indicates user selectable as a Fault or Alarm.

EXTERNAL INTERFACES

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The unit is shipped from the factory with the default relay settings provided in Table 3-4.

Table 3-4. Discrete Output Factory Settings

Relay Monitored Parameters

1 Summary Fault

2 Summary Warning

3 High Reflected RF Power Fault

4 Low RF Output Power Fault

3.1.5 Ethernet Interface Connector (J14) (Optional)

This port is a standard RJ-45, 10BaseT Ethernet LAN connection. The operator can control and monitor the SSPA using a Java enabled interface on a PC browser.

Even if the optional LAN connectivity was not included, the LAN port can still be used to obtain important diagnostic and fault information for/by CPI service personnel.

INITIAL POWER ON & CHECKOUT

DOC.01040053 REV.6 4-1

4-1

Chapter 4 Initial Power On & Checkout

Table of Contents

CHAPTER 4 INITIAL POWER ON & CHECKOUT.........................................................................4-1

4.1 OVERVIEW.................................................................................................................................4-3

4.2 PRE-POWER ON PROCEDURE..............................................................................................4-3

4.3 USING THE CONTROL PANEL..............................................................................................4-3 4.3.1 DATA ORGANIZATION .....................................................................................................4-4 4.3.2 NAVIGATION ......................................................................................................................4-4

4.3.2.1 MENU KEY........................................................................................................................4-4 4.3.2.2 SET PWR KEY ...................................................................................................................4-5 4.3.2.3 ARROW KEYS....................................................................................................................4-5 4.3.2.4 ENTER KEY .......................................................................................................................4-5

4.4 POWER-ON AND CHECKOUT ...............................................................................................4-5 4.4.1 INITIAL CHECK ..................................................................................................................4-6 4.4.2 USER PREFERENCE SETTINGS .......................................................................................4-7 4.4.3 SETTING TRIP LIMITS.......................................................................................................4-8 4.4.4 VERIFYING METER READINGS ......................................................................................4-8 4.4.5 IP AND CIF SETUP..............................................................................................................4-9

4.4.5.1 IP SETUP...........................................................................................................................4-9 4.4.5.2 CIF SETUP ........................................................................................................................4-9

4.4.6 ACTIVATING COMPUTER CONTROL ............................................................................4-9


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List of Figures FIGURE 4-1. TYPICAL MAIN SCREEN ........................................................................................................4-4 FIGURE 4-2. MENU SCREEN.......................................................................................................................4-4 FIGURE 4-3. SET PWR SCREEN ..................................................................................................................4-5

List of Tables TABLE 4-1. USER CONFIGURABLE PREFERENCE SETTINGS ......................................................................4-7 TABLE 4-2. TRIP LIMIT SETTINGS .............................................................................................................4-8


DOC.01040053 REV.6 4-3

4.1 Overview Each Indoor SSPA is configured and thoroughly tested at the factory. Once the Indoor SSPA is installed it should be monitored at initial power on to ascertain that it still functions properly. This chapter describes procedures for pre-power on, control panel operation, power on, and checkout.

4.2 Pre-Power on Procedure Before applying prime AC power to the Indoor SSPA, verify that the following conditions are met:

1. AC prime power is 100 - 240 VAC ±10%, 47-63 Hz, as indicated by the label located on the back panel, and single phase.

2. The rear panel circuit breaker switch is turned off.

3. All connections are tight, no wires are pinched, and no hardware have been loosened during shipment or handling.

4. The AC power cord is connected to J1, but the AC power is not turned on.

5. A ground strap is connected from the station's ground bus to the 10-32 threaded ground stud hole located on the amplifier rear panel.

6. The RF Input (J2) is connected to a matched source. RF input power is off and is set no higher then –15dBm or 0.032mW.

7. The RF output (J3) is properly terminated with a load with a voltage standing wave ratio (VSWR) not exceeding 1.5:1.

8. There is at least 4 inches of clearance at the front and rear of the amplifier and the fan and exhaust are not blocked.

Caution: Failure to verify these pre-power conditions may damage the SSPA or cause it to malfunction. Operating the equipment before verifying these items may void the warranty.

4.3 Using the Control Panel The Indoor SSPA is controlled and monitored using the control panel. The front panel display provides textual and pictographic information back to the user and can only be operated when the SSPA is in local mode. The UP/DOWN and LEFT/RIGHT keypad buttons can be used to navigate the menu tree structure. For detailed menu structure and operation see the “SSPA Functional Tree” chapter.


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4.3.1 Data Organization During normal operation, the main screen of the Indoor SSPA displays the status, control mode, state of operation (either transmit or standby), any fault or alarm conditions, RF output level, power mode, and ten-meter readings or trip points. Figure 4-1 shows the typical main screen.

Figure 4-1. Typical Main Screen

4.3.2 Navigation The navigation requires the use of combinations of the following:

• Menu key

• Set Pwr key

• Arrow keys

• Enter key

4.3.2.1 Menu Key Data is organized into categories in the menu screen. To get to the menu screen press the MENU key located on the front panel. The menu screen contains EVENT LOG, SETUP, CALIBRATION, TRIP POINTS, SCREEN CFG, VERSION, TIME, and SETUP. The SWITCH CTRL menu is only present if a redundant switch system is selected. Press the MENU key while in the menu screen to return to the main screen. Figure 4-2 shows the menu screen.

Figure 4-2. Menu Screen


DOC.01040053 REV.6 4-5

4.3.2.2 Set Pwr Key The SET PWR button will displays the current output power and attenuation set points. Either ALC or Manual power mode can be chosen. Press the SET PWR key while in the set power screen to return to the main screen. Figure 4-3 shows the Set Pwr Screen.

Figure 4-3. Set Pwr Screen

4.3.2.3 Arrow Keys The UP/DOWN/RIGHT/LEFT arrow keys are used to navigate menus, navigate data fields, and change data fields. The key function is determined by the VFD display the operator currently in.

4.3.2.4 Enter Key The ENTER key is mainly used enter menus and save data fields that have been changed using the arrow keys.

4.4 Power-On and Checkout Power on and check out should not be performed unless all procedures in the “Unpacking and Installation” chapter have been completed. A qualified operator should only perform this task; initial power-on is not a normal power-on sequence. Should a maladjustment be discovered during initial power-on, go to “Maintenance and Troubleshooting” in the Indoor SSPA Service Manual or contact CPI customer support (see Appendix A for the telephone number).

Initial power-on and check out consists of initial check, user preference settings, setting trip limits, verify meter reading, and computer interface (CIF) configuration.


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4.4.1 Initial Check Each time the Indoor SSPA power is switched on its microprocessor performs a series of self-tests to ensure the ability to control and monitor the amplifier.

Once the Power-on self-test (POST) is successfully completed, the amplifier ascertains whether it was transmitting or in standby the last time it was powered down and assumes that state. The Indoor SSPA should be put into standby state for the initial check by pressing STANDBY on the front panel of the amplifier.

To turn on unit the first time, follow this procedure:

1. Turn on the prime power distribution system so that AC power is applied at J1.

2. Place the rear panel circuit breaker into the on position.

3. Push and hold the on button located on the front panel for one second.

4. CPI logo should appear to rotate in 3D on the front panel display.

5. Verify that the following sequence occurs after AC power is applied:

• Front panel LEDs all light sequentially for 5 seconds.

• Front panel on switch illuminates red.

• The front panel display should show a CPI logo splash for 1 second before displaying the main screen.

• The cooling fan activates and spins up rapidly before returning to a low speed.

If a fault occurs during POST, the fault LED will flash. If this occurs, press RESET. If RESET fails to clear the fault, disconnect AC power from the unit and refer to the “Shutdown and Recovery” section in the “Operation” chapter.


DOC.01040053 REV.6 4-7

4.4.2 User Preference Settings Before the Indoor SSPA is used at the installation site, these user configurable settings may be set to the user’s requirements. Table 4-1 shows the user configurable preference settings.

Table 4-1. User Configurable Preference Settings

Name Setting System Setting Category

Amp Control Local or Remote System Control

RF Unit Watt or dBW or dBm RF Control

Mute Alarm Yes or No General

Mute Keypad Yes or No General

Auto Log Time in minutes General

Amp Address Set 48 to 111 Communication

Switch System None/1:1/1:1+M/1:1PC/1:2/1:2+M/1:2PC Switch Control

Amp ID 1 or 2 or 3 Switch Control

Amp Priority None or Amp1 or Amp2 Switch Control

BUC Unlock Alarm or Fault RF Control

High Refl RF Alarm or Fault RF Control

Reset Event Log Yes or No General

Fan Optimization Acoustic Noise or Enhanced Reliability Mechanical Control

Display Brightness 12.5% to 100% General

Screen Saver Yes or No General

Enable NTP Yes or No Time

CIF Serial Type RS-232 or RS-422 Communication

Serial CIF Protocol ASCII or Binary Communication

Relay 1 Can be set to any fault or alarm General




Press the MENU key to display the menu screen. Cursor over to SETUP using the arrow keys and push ENTER. Cycle through the screens using the arrow keys to check that the default values meet operator’s needs. Adjust if necessary or use MENU key to return to return to the main screen on the front panel display.


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4.4.3 Setting Trip Limits Fault and alarm settings are user-settable by pressing MENU and selecting TRIP POINTS. Table 4-2 defines the trip limit settings.

Table 4-2. Trip Limit Settings

Alarm or Fault Setting System Setting Category

Low RF Fault 0 Watts RF Control

Low RF Alarm 0 Watts RF Control

High RF Alarm Rated Power (W) RF Control

High RF Fault Rated + 10% (W) RF Control

High Refl RF 10% of Rated (W) RF Control

Over Temp Alarm 75 to 78 (ºC) Temperature

4.4.4 Verifying Meter Readings After verifying the factory settings and test functions of the Indoor SSPA in standby state, follow these steps to proceed to transmit state to verify the unit is functioning properly.

1. Verify that “LOCAL”, “STANDBY”, and “MANUAL” appear at the top of the main screen on the front panel display. If the amplifier is in REMOTE mode press MENU and enter the SETUP to change REMOTE to LOCAL. If the amplifier is in transmit mode from the previous shut down press standby.

2. Verify that no fault message is present. If “FAULT” appears at the top of the main screen refer to the “Operation” chapter.

3. Verify that the RF input and the RF output are connected to a 50-ohm RF matched source and waveguide load, respectively.

Note: The RF drive should be off so do not apply RF drive at this time.

4. Press SET PWR and change the attenuator to maximum attenuation of 23 dB.

5. Verify that the RF output on the main screen reads 0 watts.

6. Press TRANSMIT key. The main screen should show transmit. If “FAULT” appears at the top of the main screen refer to the “Operation” chapter.

7. After the unit has been on for at least five minutes, apply approximately –40 dBm input drive to the RF input (J2) of the Indoor SSPA.

8. Using the SET PWR menu adjust the attenuator to set RF output power to a safe level such as 10% of the units rated power.


DOC.01040053 REV.6 4-9

9. The reflected power should be less then 10% of the transmitted power. If it is not the quality of the match to the load (antenna) is poor and should be rectified by shutting the system down and following the procedures for waveguide installation in the “Unpacking and Installation” chapter.

10. Perform the power and gain test located in the “Maintenance” chapter.

11. Press the STANDBY key and verify that the main screen has reverted to the standby state and that no fault message is shown.

12. Switch off all circuit breakers. This concludes the initial power on and checkout procedure.

4.4.5 IP and CIF Setup Setting up the IP and CIF will enable the operator to control the unit remotely through a local area network (LAN) or a remote control panel. Remote operation can be performed through a web browser. Refer to the “Operation” chapter for details.

4.4.5.1 IP Setup Press the MENU key to display the menu screen. Cursor over to the IP SETUP using the arrow keys and push ENTER. The IP address, mask, and gateway can be set in this submenu. The simple mail transfer protocol (SMTP) server and the network time protocol (NTP) server address can be set.

4.4.5.2 CIF Setup Press the MENU key to display the menu screen. Cursor over to SETUP using the arrow keys and push ENTER. Amp control, amp address, CIF serial type, and CIF protocol can be set to the operators’ preference and will enable communication through J7 at the rear of the Indoor SSPA.

4.4.6 Activating Computer Control The interface parameters of the Indoor SSPA must been set to match those of an external computer system. Computer control can be activated from either a local control panel or a remote control panel. Pressing MENU key and scrolling over to the SETUP allows the user to set either LOCAL or REMOTE mode. For more details on communicating locally or remotely refer to the “External Interfaces” chapter.


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OPERATION

DOC.01040086 REV.7 5-1

5-1

Chapter 5 Operation

Table of Contents

CHAPTER 5 OPERATION....................................................................................................................5-1

5.1 OVERVIEW.................................................................................................................................5-4

5.2 OPERATIONAL OVERVIEW ..................................................................................................5-4

5.3 CONTROL PANEL.....................................................................................................................5-4 5.3.1 THE ON/OFF PUSH BUTTON ............................................................................................5-5 5.3.2 LED INDICATORS...............................................................................................................5-6 5.3.3 MAIN MENU DISPLAY SCREENS....................................................................................5-6 5.3.4 MAIN CONTROL KEYS......................................................................................................5-8 5.3.5 MENU KEY...........................................................................................................................5-8

5.3.5.1 EVENT LOG ......................................................................................................................5-8 5.3.5.2 SETUP................................................................................................................................5-9 5.3.5.3 CALIBRATION ................................................................................................................5-11 5.3.5.4 TRIP POINTS...................................................................................................................5-12 5.3.5.5 SCREEN CONFIGURATION ..........................................................................................5-13 5.3.5.6 VERSION .........................................................................................................................5-13 5.3.5.7 SWITCH SYSTEM............................................................................................................5-13 5.3.5.8 TIME ................................................................................................................................5-14 5.3.5.9 IP CONFIGURATION .....................................................................................................5-14

5.3.6 SET POWER .......................................................................................................................5-14 5.3.6.1 CHANGING ATTENUATION..........................................................................................5-14 5.3.6.2 RF SET POINTS ..............................................................................................................5-15 5.3.6.3 CHANGING POWER MODES ........................................................................................5-15

5.4 REMOTE OPERATION VIA WEB INTERFACE................................................................5-15 5.4.1 PC SETUP ...........................................................................................................................5-15 5.4.2 CONNECTING TO THE AMPLIFIER ..............................................................................5-16 5.4.3 NAVIGATION ....................................................................................................................5-16 5.4.4 AMP STATUS SCREEN.....................................................................................................5-16 5.4.5 AMP INFO SCREEN ..........................................................................................................5-17

OPERATION

5-2 DOC.01040086 REV.7

5.4.6 EVENT LOG SCREEN.......................................................................................................5-18 5.4.7 SETPOINTS SCREEN ........................................................................................................5-18 5.4.8 CONFIG SCREEN ..............................................................................................................5-19 5.4.9 LP SETTINGS SCREEN.....................................................................................................5-20 5.4.10 EMAIL SCREEN.................................................................................................................5-20 5.4.11 SET LOGIN SCREEN.........................................................................................................5-21 5.4.12 TIME SCREEN ...................................................................................................................5-21 5.4.13 OPTIONS SCREEN ............................................................................................................5-22 5.4.14 SWITCH CTRL SCREEN...................................................................................................5-23

5.5 SHUTDOWN AND RECOVERY ............................................................................................5-23 5.5.1 AC POWER INTERRUPTION ...........................................................................................5-23 5.5.2 EMERGENCY SHUTDOWN.............................................................................................5-23

OPERATION

DOC.01040086 REV.7 5-3

List of Figures FIGURE 5-1 FRONT PANEL DISPLAY ..........................................................................................................5-5 FIGURE 5-2. MAIN MENU SCREEN .............................................................................................................5-6 FIGURE 5-3. POWER METERS SCREEN........................................................................................................5-7 FIGURE 5-4. PSU SCREEN..........................................................................................................................5-7 FIGURE 5-5. FAN SCREEN ..........................................................................................................................5-7 FIGURE 5-6. MENU DISPLAY....................................................................................................................5-8 FIGURE 5-7. EVENT LOG ENTRY ...............................................................................................................5-9 FIGURE 5-8. SETUP (1/5)..........................................................................................................................5-10 FIGURE 5-9. SETUP (2/5)..........................................................................................................................5-10 FIGURE 5-10. SETUP (3/5)........................................................................................................................5-10 FIGURE 5-11. SETUP (4/5)........................................................................................................................5-11 FIGURE 5-12. SETUP (5/5)........................................................................................................................5-11 FIGURE 5-13. CALIBRATION (1/3) ...........................................................................................................5-12 FIGURE 5-14. CALIBRATION (2/3) ...........................................................................................................5-12 FIGURE 5-15. CALIBRATION (3/3) ...........................................................................................................5-12 FIGURE 5-16. CONFIGURATION SCREEN .................................................................................................5-13 FIGURE 5-17. VERSION DISPLAY.............................................................................................................5-13 FIGURE 5-18. TIME SCREEN ....................................................................................................................5-14 FIGURE 5-19. TYPICAL SET POWER SCREEN...........................................................................................5-14 FIGURE 5-20. AMP STATUS .....................................................................................................................5-16 FIGURE 5-21. AMP INFO ..........................................................................................................................5-17 FIGURE 5-22. EVENT LOG .......................................................................................................................5-18 FIGURE 5-23. SETPOINTS.........................................................................................................................5-19 FIGURE 5-24. CONFIG..............................................................................................................................5-19 FIGURE 5-25. IP SETTINGS ......................................................................................................................5-20 FIGURE 5-25. EMAIL................................................................................................................................5-20 FIGURE 5-26. SET LOGIN.........................................................................................................................5-21 FIGURE 5-27. TIME ..................................................................................................................................5-21 FIGURE 5-28. OPTIONS SCREEN...............................................................................................................5-22 FIGURE 5-29. TRANSMIT PROMPT SCREEN ..............................................................................................5-22 FIGURE 5-30. STANDBY PROMPT SCREEN................................................................................................5-22

List of Tables TABLE 5-1. IDU ON/OFF PUSH BUTTON INDICATOR STATUS LED ........................................................5-5 TABLE 5-2. IDU FRONT PANEL LED FUNCTIONALITY .............................................................................5-6 TABLE 5-3. MAIN CONTROL KEYS AND FUNCTION ..................................................................................5-8 TABLE 5-4. EVENT LOG TRIGGERS ...........................................................................................................5-9

OPERATION

5-4 DOC.01040086 REV.7

5.1 Overview This chapter describes the operation of the Indoor SSPA. It presents a brief overview of operation and explains how to use the control panel to monitor and control the Indoor SSPA. It gives procedures for switching the Indoor SSPA on and off, changing operation modes, displaying and changing settings, conducting routine tests, and options. This chapter also explains remote operation using a web browser.

5.2 Operational Overview The operator uses the MENU, SET PWR, TRANSMIT, STANDBY, RESET, ENTER, and directional keys to navigate and operate the Indoor SSPA. The Vacuum Fluorescent Display (VFD) provides feedback to the operator.

Note: Before starting the Indoor SSPA for the first time ensure the initial power-on and checkout procedures have been performed. See the “Initial Power-On and Checkout” chapter for instructions.

When the circuit breaker on the back is switched on and the button on the front panel’s right hand side is pressed and held for at least one second the Indoor SSPA will conduct a brief self-test. When the unit is finished initializing the operator switches the Indoor SSPA from STANDBY mode to TRANSMIT mode, sets the desired output level, and applies the RF input. The Indoor SSPA amplifies the input signal and outputs it to the operators antenna or switch system.

During operation, the control panel can be used to control or adjust numerous settings, such as operating mode or power mode. The front panel can be used to enable features such as automatic power leveling, or transfer the units control to a remote or computer.

When the Indoor SSPA is ready for shutdown, the user pushes the STANDBY key and waits a few minutes to allow cooling. Pressing the front panel’s left hand side on button then selecting shutdown will turn off the front panel display. Switching the breaker on the rear panel to the off position will cut the main input voltage to the Indoor SSPA. It is not necessary to flip the circuit rear panel circuit breaker unless it is intended to pull the unit from service.

5.3 Control Panel The front panel display of the Indoor SSPA is illustrated in Figure 5-1.

OPERATION

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Figure 5-1 Front Panel Display

Figure 5-1 displays the on/off push button indicator, LED indicators, main menu display screens, main control keys, MENU key, and SET PWR key. The “SSPA Functional Tree” chapter contains a software map.

Refer to the “Initial Power-On and Checkout” chapter for “Data Organization”, and “Navigation”

5.3.1 The On/Off Push Button The On/Off push button located on the front panel in the upper left hand corner energizes the interior circuitry and causes the M&C board to enter its boot sequence diagnostics. Should the amplifier pass all on board diagnostics, it the LED on the pushbutton will illuminate green or red dependant on previous operating state. Refer to Table 5-1 for ON/OFF push button indicator status LED.

Table 5-1. IDU ON/OFF Push Button Indicator Status LED

Indicator Status Description

Solid Green Transmit (Normal) Amplifier is in transmit mode

Flashing Green Alarm Amplifier is in transmit mode

Solid Red Standby (Normal) Amplifier is in standby mode

Flashing Red Fault Amplifier is in standby mode

There are two methods to shutting down the unit using the On/Off push button. The first method is to press and hold the push button for five seconds. The second method is to push the button and the operator will be prompted “Shut down now?” Yes or No. Use the arrow keys to make a selection and press enter to confirm. To prevent, accidental loss of carrier, if the amplifier is in transmit mode, the amplifier will query the user on the front panel, if the intention is to shut down the amplifier.

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The user will have to answer the prompt correctly to shutdown the amplifier. No response will cause the amplifier to return to its state preceding the button push. If the amplifier was off-line when the power button is pushed, it will immediately shutdown. The amplifier can be forced off even while transmitting, by pushing the button and holding for 5 seconds.

5.3.2 LED Indicators Current operating status is available by observing the front panel LEDs located under the TRANSMIT, STANDBY, and RESET keys. Refer to Table 5-2 for front panel LED functionality.

Table 5-2. IDU Front Panel LED Functionality

Indicator Color Description

TRANSMIT Green -On when the amplifier is in transmit mode -Off when the amplifier is in standby mode -Flashes when the amplifier has faulted

STANDBY Yellow -On when the amplifier is in standby mode -Off when the amplifier is in transmit mode

REMOTE Yellow -On when amplifier is in remote mode -Off when amplifier is in local mode

ONLINE Yellow -On if the amplifier is the on-line amplifier when used with a redundant switch system

FAULT Red -Flashes when the amplifier has faulted

5.3.3 Main Menu Display Screens The graphical display is located on the front panel and includes the main screen, RF metering, power supply unit (PSU) display, and fan speed display. Use the LEFT and RIGHT arrow keys to browse between them.

The main screen in shows up to 10 fields of the users choice. The top of the main menu displays the power mode, control mode, RF output, and status. Figure 5-2 is a screen shot of a main menu.

Figure 5-2. Main menu screen

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Figure 5-3 shows a power meters screen during typical operation.

Figure 5-3. Power meters screen

Figure 5-4 shows a PSU screen. If redundant PSU modules are installed, a separate screen, with number matching the PSU slot, will appear for each PSU module.

Figure 5-4. PSU screen

Figure 5-5 shows the fan screen. The screen lets the operator each fans rpm and operating percentage.

Figure 5-5. Fan screen

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5.3.4 Main Control Keys The main control keys are defined in Table 5-3. They are used to control the basic function of the Indoor SSPA.

Table 5-3. Main Control Keys and Function

Key Description

TRANSMIT If the control point is local, a transmit command will be sent to the SSPA. In remote mode this key will bring up the SETUP (1/5) where the user can set amplifier in local mode.

STANDBY If the control point is local, a standby command will be sent to the SSPA. In remote mode this key will bring up the SETUP (1/5) where the user can set amplifier in local mode.

RESET Resets the fault state of the Amplifier. In remote mode this key will bring up the SETUP (1/5) where the user can set amplifier in local mode.

5.3.5 Menu Key Press MENU and use the directional keys to scroll through menus. To enter a menu use the ENTER key. The EVENT LOG, SETUP, CALIBRATION, TRIP POINTS, SCREEN CFG, VERSION, SWITCH, TIME, and IP SETUP may be changed or viewed or saved in the menu screens by using the directional keys and enter key. To return to the main screen press MENU. Figure 5-6 is a screen shot of the menu.

Figure 5-6. MENU Display

5.3.5.1 Event Log The event log can hold up to 2000 events in battery backed SRAM. After the log is full, the oldest record will be overwritten by the newest event.

Each event logged stores the event trigger type, current operating mode, the time and date stamp, and the following meter readings: RF Power Out, Reflected RF Power, Attenuation Setting, Brick Hot Spot Temperature, Drain Current, Drain Voltage and Fan Speed Setting, Fan Speed, Inlet Air Temperature, PSU Fet Temperature and PSU Diode temperature.

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The following situations will cause an event to be stored: any alarm, any fault, any status transitions among the following states: Power On, Standby, Transmit, Reset. It is recommended that auto log should be set to 5 minutes. This provides approximately one week of current data entries. The unit will still asynchronously create log entries for any of the events listed in the previous paragraph.

By weekly downloading and examining the event log, long term trends, which could lead to degraded performance in the future, can be spotted and corrected, before maintenance is required. Trends could include elevated temperatures or decreasing voltages over long time periods. Figure 5-7 represents an event log entry.

Figure 5-7. Event Log Entry

Table 5-4 is a list of triggers that would create an entry in the event log.

Table 5-4. Event Log Triggers

Event Log Triggers

Auto log time-out

Any alarm

Any fault

Operating state transition

Power on

Pressing MENU and entering SETUP (2/5) will allow the operator to clear the event log using the reset event log feature.

5.3.5.2 Setup The “User Preference Settings” section in the “Initial Power On and Checkout” Chapter contains all the fields the operator can access in SETUP. Values can be changed while in the setup menu by using the left/right arrow keys to change data fields and using ENTER to save the change. SETUP has five pages of values that can be set. Figure 5-8 to Figure 5-12 shows each of these pages.

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Figure 5-8. Setup (1/5)



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5.3.5.3 Calibration The first page in CALIBRATION gives the operator the ability to offset and blank either the RF output or reflected RF. The offset is used to match the output power with the front panel power reading. Blanking inhibits noise power from being displayed on the front panel. To do this the operator must set the blanking just above the noise level detected on the front panel.

The second page in CALIBRATION is the RF output sample calibration offsets. This page will be displayed only if the optional RF output monitor port J4 is present on the Indoor SSPA.

The third page in CALIBRATION is the RF input sample calibration offsets. This page will be displayed only if the optional RF input monitor port is present on the Indoor SSPA. Figure 5-13 to figure 5-15 shows the calibration screens

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Figure 5-13. Calibration (1/3)



5.3.5.4 Trip Points The “Setting Trip Limits” section in the “Initial Power On and Checkout” chapter gives the operator a list of trip points and typical settings.

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5.3.5.5 Screen Configuration The SCREEN CFG allows the operator to select where and what data field is displayed on the main screen. Fields can be changed while in the setup menu by using the left/right arrow keys to change data fields and using ENTER to save the change. Figure 5-16 shows the main screen configuration.

Figure 5-16. Configuration Screen

5.3.5.6 Version The type, model, and serial number will be displayed in VERSION. The boot and main software version of the main board or FP board will also be displayed. There are no values that can be changed in the VERSION display. Figure 5-17 displays the typical version display.

Figure 5-17. Version Display

5.3.5.7 Switch System The SWITCH will only be displayed in the MENU key if it has been chosen in the SETUP menu. A switch system is optionally installed and comes with its own manual. In SWITCH a graphical representation of the switch will be shown. The switch or switches can be controlled using SWITCH by selecting the switch and pressing enter to change its position.

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5.3.5.8 Time The amplifier internal clock and date can be set in TIME. The operator uses the left or right arrow keys to select a field and modifies that field using the up or down arrow keys. The operator does not need to press ENTER for the change to take place.

Figure 5-18. Time Screen

5.3.5.9 IP Configuration The “IP Setup” section in the “Initial Power On and Checkout” chapter details how to change IP configuration settings.

5.3.6 Set Power Press the SET PWR key to enter the set power menu. In SET PWR the attenuation, RF setpoint, and power mode can be changed. Figure 5-19 displays a typical set power screen.

Figure 5-19. Typical Set Power Screen

5.3.6.1 Changing Attenuation To change the attenuation, use UP/DOWN arrows to select the attenuation field and LEFT/RIGHT keys to change the value. The attenuation is adjustable in increments of 0.1dB.

To return to the main screen, press the SET POWER key again.

Manually changing attenuation disables the ALC and will only work if the Indoor SSPA is in local mode.

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5.3.6.2 RF Set Points To set an RF setpoint, use the UP/DOWN arrows to highlight RF setpoint and LEFT/RIGHT keys to change the value. In ALC mode the operator can use the RF setpoint to have the amplifier automatically adjust the output power to the setpoint level. If input drive level changes the amplifier will adjust its internal attenuator to keep output power at the RF setpoint. To return to the main screen press SET PWR while in set power.

5.3.6.3 Changing Power Modes To change the power mode, use UP/DOWN arrows to highlight power mode and LEFT/RIGHT keys to change the value. Changing power modes requires the amplifier to be in local mode.

In manual mode the operator can adjust the attenuator change the output power of the Indoor SSPA without adjusting input power level. Changing the attenuator in manual mode will not change the power mode.

In ALC mode the operator uses the RF setpoint to automatically maintain a constant power level. If the attenuator is adjusted in ALC mode the power mode will change to manual.

5.4 Remote Operation via Web Interface The Indoor SSPA can be operated remotely via a web browser. This is performed through the Ethernet interface (J14). The amplifier can be connected to a LAN using a 1 to 1 Ethernet cable or directly to a PC via an Ethernet crossover cable. This section explains how to setup the PC for communication and describes the interface screens.

5.4.1 PC Setup The IP address can be changed from the factory default setting. To setup a PC complete the following steps:

1. Open network connections.

2. Right click on the LAN connection.

3. Click properties.

4. Select Internet protocol (TCP/IP).

5. Click properties.

6. The Internet protocol properties screen should appear.

7. Fill in the subnet mask field with 255.255.255.0

8. Fill in the IP address with the address with the portion changed to be different from the amplifier. To view or set the IP address of the amplifier refer to the "IP Setup" section in the "Initial Power On and Checkout" chapter.

Your workstation PC is ready to connect.

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5.4.2 Connecting to the Amplifier Use the following steps to initiate communication between the amplifier and PC:

1. Open a web browser on the PC.

2. In the address field of the PC type in the amplifiers IP address.

3. A login screen will appear. The default user name is CPI and the password is CPI.

The amp status screen will appear.

5.4.3 Navigation The left side lists all the operator accessible screens. The first screen an operator will encounter is the amp status screen. To navigate through screens simply click on the name of the screen to be viewed. The screens are explained in the sections that follow.

5.4.4 Amp Status Screen Figure 5-20 is a typical amp status screen. The amp status screen displays monitored parameters, the control type, the amplifier state, RF output, and power mode. When in this screen the operator can place the amplifier in transmit, standby, and RF inhibit. The operator must be in this screen to reset faults. Automatic level control (ALC), or manual can be selected as well.

Figure 5-20. Amp Status

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5.4.5 Amp Info Screen The amp info screen displays the serial number at the top. It contains the firmware main controller, and firmware FP controller software version. The amplifier can be given a name by typing it in the “Amp Name” box and clicking apply. Clicking on the “Download Factory Data” button will retrieve an Excel file containing the amplifiers test data, and an as built record. Selecting the firmware location through the “Browse” feature and clicking “Upload” will load firmware updates. Figure 4-2 displays the amp info screen.

Figure 5-21. Amp Info

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5.4.6 Event Log Screen The meter log screen displays twenty entries at any given time however can be set to display anywhere from 1 to 1000 entries. The previous and next button will move the displayed entries in blocks of ten. The operator may change the limits in the log settings screen by clicking the LOG SETTINGS button. It is recommended the factory default settings remain unchanged. Special events, such as service or related activities can be entered in the meter log manually by typing text in the Event Detail box and clicking submit. The meter log can be downloaded for device history purposes. The event text entry in the meter log cannot be modified. Figure 4-3 displays a typical meter log screen.

Figure 5-22. Event Log

5.4.7 Setpoints Screen The amplifier fault and alarm trip-points can be entered from the setpoints screen. Fault trip-limits are factory-set and should NOT be adjusted. Automatic loop control (ALC) is used to maintain a constant output power by automatically adjusting the attenuation setting based on temperature and input drive variances. The manual RF set point will adjust the RF output power to the level entered in its field. The manual RF output will not automatically adjust due to temperature and input drive variances. Setting up ALC and manual RF is depend on the RF input drive level and having a moderate level of attenuation set. Figure 4-4 displays a typical setpoints screen.

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Figure 5-23. Setpoints

5.4.8 Config Screen The config screen contains the four settable relays for use with the discrete interface. The BUC unlock type, and high reflected RF can be set to fault or alarm. The fan optimization setting can be chosen through the drop down menu. When the amplifier is a part of a switch system the amp ID and priority can be set in the config screen. The autolog time is used to determine the time between logged events in the event log screen.

Figure 5-24. Config

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5.4.9 lP Settings Screen The IP settings screen is used to set up to the network address of the amplifier. Whenever the IP settings are changed a system reset is required before they will be functionally set. To change settings, type them in and click the APPLY button.

Figure 5-25. IP Settings

5.4.10 Email Screen The email screen can be set up to send the alarm/fault and the meter log to an assigned e-mail address. The HOLD OFF period can be set to a user specified time in minutes, which the amplifier will not send the same fault/alarm message. Alarm/fault events and meter logs will be sent when the check box is marked and the SUBMIT button is clicked. RESET will clear all entries on the email screen.

Figure 5-25. Email

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5.4.11 Set Login Screen The set login screen is used to change the user’s name and password. After applying the new user name or password keep a copy of it in a retrievable location. To set a new user name and password, type the old user name and password in the first two boxes. Proceed to type a new user name and password in the next two boxes, and retype the new password in the last box. Click the “Apply” button for the new setting to take effect.

Figure 5-26. Set Login

5.4.12 Time Screen The time screen is used to manually set the current time and date. The operator can type in the hour, minute, second, month, day, and year and click APPLY for the new settings to be loaded. The operator can also set the network time protocol (NTP), which will automatically update the time and date on the amplifier by entering a NTP server address and clicking APPLY.

Figure 5-27. Time

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5.4.13 Options Screen The options screen allows the operator to choose if they would like to be prompted when changing states. These modes include enabling transmit, and enabling standby shown in the figures below. To enable prompting when changing modes, simply click in the check box beside the mode and confirm the selection with the APPLY button.

Figure 5-28. Options screen

Figure 5-29. Transmit prompt screen

Figure 5-30. Standby prompt screen

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5.4.14 Switch Ctrl Screen This screen will only be present when a switch system has been purchased with the amplifiers. Refer to the switch system manual provided for switch system operation.

5.5 Shutdown and Recovery When transmission is complete and no other activity is planned, the Indoor SSPA should be switched off to conserve electricity and prolong life. The following procedures describe normal shutoff.

1. Press STANDBY key to place the Indoor SSPA in standby state. Verify the main screen displays “STBY”. Verify that the standby LED is illuminated yellow.

2. Press and hold the ON/OFF button on the front panel or press the ON/OFF button and use the arrow keys to select yes to “Shut down now?” on the VFD display.

3. Switch of the circuit breaker on the back of the Indoor SSPA.

5.5.1 AC Power Interruption In the event of AC power interruptions, the Indoor SSPA will automatically return to the state is was in prior to the AC power interruption.

5.5.2 Emergency Shutdown Press and hold the ON/OFF power button located on the front panel.

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6-1

Chapter 6 Maintenance

Table of Contents

CHAPTER 6 MAINTENANCE ................................................................................................................. 6-1

6.1 OVERVIEW..................................................................................................................................... 6-3

6.2 SCHEDULED PREVENTIVE MAINTENANCE ........................................................................ 6-3

6.3 OPERATOR’S PREVENTATIVE MAINTENANCE ................................................................. 6-5 6.3.1 VISUAL INSPECTION............................................................................................................. 6-6 6.3.2 UNIT CLEANING..................................................................................................................... 6-6 6.3.3 AIR FILTER CLEANING......................................................................................................... 6-6 6.3.4 FAN INSPECTION ................................................................................................................... 6-7

6.4 TECHNICIAN’S PREVENTATIVE MAINTENANCE.............................................................. 6-7 6.4.1 INITIAL POWER-ON CHECK ................................................................................................ 6-7 6.4.2 AIR SYSTEM MAINTENANCE.............................................................................................. 6-7 6.4.3 RUN PERFORMANCE TESTS................................................................................................ 6-7 6.4.4 FAN REPLACEMENT.............................................................................................................. 6-8

6.5 PERFORMANCE TESTING ......................................................................................................... 6-8 6.5.1 POWER AND GAIN PERFORMANCE TEST........................................................................ 6-8 6.5.2 RF RADIATION MEASUREMENT ........................................................................................ 6-9

6.6 PROTECTING PARTS FROM ELECTROSTATIC DISCHARGE....................................... 6-10 6.6.1 PRECAUTIONS ...................................................................................................................... 6-10 6.6.2 WORKSTATION PRACTICES.............................................................................................. 6-10 6.6.3 WORKSTATION UPKEEP .................................................................................................... 6-11 6.6.4 PACKAGING .......................................................................................................................... 6-12

6.7 CUSTOMER SERVICE................................................................................................................ 6-12

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List of Figures FIGURE 6-1. PERFORMANCE TEST SETUP...................................................................................................... 6-9

List of Tables TABLE 6-1. PREVENTIVE MAINTENANCE PERFORMED BY OPERATORS ....................................................... 6-4 TABLE 6-2. PREVENTIVE MAINTENANCE PERFORMED BY TECHNICIANS..................................................... 6-4 TABLE 6-3. RECOMMENDED TEST EQUIPMENT ............................................................................................. 6-5 TABLE 6-4. POWER AND GAIN TEST DATA SHEET........................................................................................ 6-9

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6.1 Overview This chapter provides instructions for routine maintenance of the Indoor SSPA. It includes procedures and test equipment for scheduled maintenance task and Indoor SSPA performance testing. Guidelines for protecting parts from electrostatic discharge are also included.

Warning: Improper maintenance of the Indoor SSPA may void the warranty. For additional information, see Appendix A, “Warranty & Support Information”.

The amplifier’s internal memory contains a histogram log, which allows CPI personnel to easily understand the long term operating conditions that the amplifier has experienced. This log can be downloaded and examined and can be helpful in identifying trends and potential problems. The three different histograms kept in the Indoor SSPA’s memory are brick temperature vs. operating hours, individual fan rpm vs. operating hours, and inlet air temperature vs. operating hours.

The snapshot fault capture log is used to capture in-depth information around any amplifier fault activity. This enables quick and accurate diagnosis of problems by trained CPI personnel. The fault snapshot log can hold up to five entries. Entries over five overwrite the oldest entry.

6.2 Scheduled Preventive Maintenance

Note: There are additional preventive maintenance tasks that require a service technician who has attended a formal training program for servicing the Indoor SSPA. (See Table 6-2).

To function safely and effectively, the Indoor SSPA requires periodic maintenance by the operator. No maintenance is required for the electrical components inside the Indoor SSPA unit.

The chassis may be periodically cleaned with a mild detergent and water. Do not use Genesolv, Benzene, Toluene, or similar solvents on any part of the chassis or the connection ports.

Refer to Table 5-1 for the Preventive Maintenance tasks to be performed by operators. Table 5-2 outlines preventive maintenance tasks to be performed by a service technician.

Operator Preventive maintenance includes visual inspection and cleaning per Table 5-1. Most of these tasks are performed with the AC power removed. Details are listed in the following sections.

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Table 6-1. Preventive Maintenance Performed by Operators

Tasks Daily Weekly 1 Mo. 3 Mo. 6 Mo. 1 Yr.

Log meter readings X

Download Event Logs X

Download Fault Logs X

Download Histogram X

Perform visual inspection X

¹Cooling fan(s) Inspection X

¹Clean Intake Filter X

¹Perform external cleaning X

Table 6-1 Notes: 1. Cleaning may be required more or less frequently than shown, depending on the site environment.

Table 6-2. Preventive Maintenance Performed by Technicians

Tasks Daily 1 Mo. 3 Mo. 6 Mo. 1 Yr.

Perform initial Power ON check X

Air system maintenance X

Run performance tests X

¹Fan Replacement A/R

Table 6-2 Notes: 1. Replace fan after 50,000 hours of operation.

WARNING! ANY PERSONS PERFORMING MAINTENANCE PER TABLE 5-2 MUST BE SERVICE PERSONNEL WHO HAVE ATTENDED FORMAL TRAINING FOR SERVICE OF THE INDOOR SSPA.

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Table 6-3. Recommended Test Equipment

Item Description Example (Equivalent may be substituted)

1(1) Swept Signal generator, capable of CW and swept operation, compatible with Scalar Analyzer, item 2.

HP 8360, 8350

2(1) Scalar Network Analyzer, complete with dual detector probes. Should have dual markers, with delete mode. Compatible with Swept Signal Generator, item 1.

HP 8757

3(1) Vector Network Analyzer HP 8720D

4(2) Microwave Frequency Counter HP5340A

5 RF Splitter, precision 2 way, 50 Ohms, Type N, DC to 18 GHz

HP 11667A

6 RF Power Meter complete with power sensors, Type N, 50 Ohms, power measurement range -30 to +20 dBM

HP 437B, 438A meter HP 8481 sensor

7 Variable Attenuator, 0 to 25 dB, DC to 18 GHz, 50 Ohms

Merrimac ASM 25-11K

8 High quality, low loss RF test cables as required for test set up

9 RF Radiation Detector Narda 8718 meter with 8621 probe

10 Calibrated Waveguide Directional Coupler Narda, HP, etc.

11 Dummy Load, 1 kW Waveline, Narda, etc.

Table 6-3 Notes: 1. Items 1 and 2 are replaceable by item 3. 2. Item 3 is replaceable by items 1 and 2. 3. Item 4 is required only if item 1 is not digitally controlled or phase locked.

6.3 Operator’s Preventative Maintenance

WARNING! OPERATORS SHOULD NOT REMOVE COVERS WITH ELECTRICAL HAZARD INDICATORS. ONLY SERVICE TECHNICIANS SHOULD REPAIR, REPLACE, OR PLUG IN PARTS.

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Caution: Before attempting any cleaning, remove all power. When using solvents, provide adequate ventilation and avoid breathing fumes. When cleaning with air, wear safety goggles and use clean, dry compressed air not exceeding 25 psi (1.75 kg/cm).

6.3.1 Visual Inspection At one-month intervals, the Indoor SSPA should be visually inspected for physical defects. If the equipment is subject to severe environmental conditions, inspections should be performed more frequently.

The event log is a good source for clues that could indicate an intermittent or marginal condition. Any increase in reflected power, temperature or unexplained fault conditions could point to a deteriorating condition.

The circuit breaker must be off while the following general inspection is performed.

Perform the following visual inspection:

• Check that all connector plugs are properly seated in their mating connectors and have not been damaged. Only have a service technician replace any bad connector plugs and reseat any that are dislodged.

• Inspect cables for signs of discolored, broken, or bad insulation. A service technician should repair or replace cables as needed.

• Inspect all waveguide for discoloration, cracks, loose connectors, and improper sealing. Contact a qualified service technician for repairs.

• Check for other defects. These include, but are not limited to, wear, breakage, deterioration, fungus, excess moisture, and mounting integrity. Contact a qualified service technician for repairs.

• Inspect the air intake filter. This is a removable and washable filter; clean it if necessary.

6.3.2 Unit Cleaning Look for signs of dirt or moisture contamination, which can cause short-circuiting, arcing, corrosion, or overheating. Use a lint-free cloth, a small vacuum cleaner, or a compressed-air blower at low pressure to clean contaminated areas with.

6.3.3 Air Filter Cleaning Remove the two captive screws in the front panel. Gently pull on the screws and part of the front panel will detach exposing the reusable filter element. Rinse under warm water and let dry. Reverse disassembly procedure to reinstall, carefully noting which side of filter faces grill. Indents in the filter from the grill will indicate which side faces grill.

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6.3.4 Fan Inspection Contact your local service technician for fan replacement parts.

Periodically feel unit for abnormal vibration that would indicate a fan balance issue or bearing problem. Also listening to the unit for unusual or atypical sounds can indicate a problem. Unusual sounds or vibration should be investigated.

Examination of the histogram log files for inconsistencies between fans can also be an indication of degraded fan performance. The six fans should have similar histograms. If one fan shows consistently greater hours at lower rpm, it might be an indication of reduced fan performance.

A trained technician can perform replacements as covered in the CPI service manual #01032407, or the user can contact the CPI service center.

Caution: Observation may be required more or less frequently than shown, depending on the site environment.

6.4 Technician’s Preventative Maintenance

Warning: Service technicians must be service personnel who have attended formal training for service of the Indoor SSPA.

WARNING! REMOVE ALL POWER TO THE UNIT BEFORE TOUCHING ANY COMPONENTS.

6.4.1 Initial Power-On Check Every three months the initial power-on and checkout procedure in the “Initial Power On and Checkout” chapter should be performed.

6.4.2 Air System Maintenance The Indoor SSPA must be checked for airflow to insure it is properly transferring heat away from the internal heatsink. This means that the measurement of airflow temperature, the inspection, and elimination of any contaminants restricting the airflow must be performed periodically. The recommended cycle is three months, but may be required more often if conditions warrant it.

6.4.3 Run Performance Tests Once a year run the performance tests in “Performance Testing” section of this chapter to ensure Indoor SSPA’s performance.

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6.4.4 Fan Replacement After 50,000 hours of operation or if the fans have problems, the fans should be replaced. Contact CPI service for instructions.

Note: Fan Replacement may be required more or less frequently than shown, depending on the site environment.

6.5 Performance Testing Once a year perform the tests for power and gain, radiation levels, and record their results. If the results are not satisfactory refer to the Indoor SSPA service manual to troubleshoot and repair the Indoor SSPA.

6.5.1 Power and Gain Performance Test Follow these steps to test the Indoor SSPA for power and gain. Record the results on the “Power and Gain Test Data Sheet” provided in table 6-4.

1. Connect equipment as shown in figure 6-1 “Performance Test Setup”.

2. Turn off the synthesizers RF output. Set the input drive level to minimum and the Indoor SSPA attenuation to maximum.

3. Set the synthesizer to center wave (CW). The same frequencies should be used every time preventative maintenance is performed so that a trend chant can be developed.

4. Turn the synthesizer’s RF output. Increase the drive level until the Indoor SSPA has reached rated power.

5. Calculate the gain at rated power and record on the test data sheet.

Gain = Po (dBm) – Pi (dBm)

6. Reduce the drive level until the Indoor SSPA is at rated power –10dB. It may be necessary to use a 10dB fixed attenuator at the input to achieve a reliable input power measurement.

7. Calculate the small signal gain, and record the result on the test data sheet.

8. Repeat for the low and high frequency band of the Indoor SSPA.

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Power Sensor & Meter

Synthesizer

Power Sensor & Meter

CouplerCoupler High Power Load

Indoor SSPA

Figure 6-1. Performance Test Setup

Table 6-4. Power and Gain Test Data Sheet

Frequency Measurements

Low Band Center Band High Band

Gain @ Rated

Small Signal Gain

6.5.2 RF Radiation Measurement To measure the Indoor SSPA radiation levels:

1. Adjust the Indoor SSPA for rated power.

2. Using a radiation probe, measure the highest level of RF leakage around the amplifier, at less then 12 inches away from any point source.

3. Record the measured value(s). Measured levels should be less then 1mW/cm². If this value is exceeded. Shut down the Indoor SSPA and tighten the joints or install grounding or gaskets to eliminate leakage.

WARNING! IF ANY RF RADIATION LEVELS ARE TO BE MEASURED, CHECK FOR RF LEAKAGE USING THE STEPS ABOVE.

MAINTENANCE

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6.6 Protecting Parts from Electrostatic Discharge

Static electricity is a familiar phenomenon; except for an occasional mild shock or annoying “static cling,” it does not seem very serious to most personnel handling integrated circuit (IC) parts or assemblies. Unfortunately, many electronic components can be damaged or destroyed by electrostatic discharge (ESD) at potentials well below a person’s range of feeling. This damage can occur before, during, or after the part is installed.

People often carry 1000 to 5000 volts of static charge and do not feel any discharge of less than 3500 to 4000 V. Components mounted on a printed circuit board face increased risk of ESD damage because each printed conductor (wire) is a path connecting several devices. A discharge to that conductor stresses several devices at once. Passive as well as active components are susceptible, and the damage ranges from a slight degradation of a parameter to catastrophic failures, such as short circuits. In many cases, a damaged part exhibits little or no visible physical damage, even under microscopic examination.

6.6.1 Precautions ESD damage can be prevented for the most part by following these precautions:

1. Treat all electronic parts and assemblies as static sensitive.

2. Do not touch leads, pins, or traces while handling parts.

3. Keep parts in original containers until ready for use.

4. Discharge all static before handling devices by touching a grounded metallic surface such as a rack or cabinet. For personal grounding, use a wrist strap grounded through a 1-megohm resistor.

5. Do not slide static-sensitive devices over any surface.

6.6.2 Workstation Practices Handle all sensitive parts or assemblies at static-safe workstations. A static-safe workstation provides the following features:

• A conductive tablemat grounded through a 1-megohm resistor.

• A conductive wrist strap wired to a swivel connector on the mat through a 1-megohm resistor.

• Common ground point at each workstation.

• A work area free of nonconductors, including all common plastics, “polybags,” cardboard, cigarette packages, candy wrappers, work envelopes, synthetic mats, and ungrounded metal plates. Carpeting should not be used on floors, work surfaces, or shelving.

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• Do not allow clothing to come in contact with components or assemblies. Sleeves should be rolled high enough to keep them away from sensitive parts. Antistatic smocks should be worn.

• Gloves, if used, should be made of cotton or antistatic materials only.

• Brushes, if needed, should have natural, not synthetic, bristles.

• If walking is necessary and wrist straps cannot be worn, use a conductive floor mat in conjunction with conductive shoe heels.

• Transport and store electrostatic-sensitive devices only in static-protective containers. No paper or cards should be placed inside the containers. A label attached to each container should warn personnel to observe proper handling precautions.

• Transportation carts should have carrying surfaces covered by conductive mats and should have at least two conductive wheels. Verify that carts, wheels, casters, frames, and shelves are conductive. Do not transport sensitive electronic equipment on a rubber-wheeled cart being pushed by a person wearing crepe- or heavy-rubber-soled shoes; this produces very high levels of electrostatic charge.

6.6.3 Workstation Upkeep Perform the following checks at the static-safe workstation on a weekly basis:

• Monitor each workstation for proper grounding, safe procedures, and possible static hazards.

• Check electrical grounds and wrist-strap continuity with an ohmmeter.

• Check workstations, including materials and containers, with a static meter.

• Spray a commonly available antistatic solution on a clean cotton cloth and wipe the surfaces of workbenches, hand tools, and chairs.

• Clean conductive mats with mild detergent and water or with an antistatic solution. This removes dirt and wax, which can insulate the surface and render it nonconductive.

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6.6.4 Packaging Package parts properly for storage or transportation in the following manner:

• Attach a static warning label on the outside of each applicable envelope and container. (A JEDEC/EIA ESDS symbol is preferred.)

• Pack parts for storage or transportation in antistatic packaging; pack the parts tightly to prevent motion that could generate static.

Note: The best protective enclosure is a Faraday cage, which shunts any inductive charges around the part, providing complete protection. Metal, metalized plastic, and carbon-loaded plastic bags are all examples of Faraday cages. Metalized plastic has the advantage that it is semitransparent and its contents can be seen without opening it. The often-used “pink poly” bags afford less protection.

6.7 Customer Service Refer to the front of this manual for CPI Satcom contact, service, and return information.

SSPA FUNCTIONAL TREE

DOC.01040089 REV.4 7-1

7-1

Chapter 7 SSPA Functional Tree

7.1 Functional Trees The trees displayed on pages 7-3 through 7-8 are a roadmap to viewing, selecting and modifying the various functions of the SSPA. Page 7-3 describes the controls of the front panel. Pages 7-4 through 7-8 describes the controls that will be found using the MENU and SET PWR keys.

Use the map to view or modify data fields by pressing the appropriate keys.

SSPA FUNCTIONAL TREE

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REDUNDANT SWITCH OPTION

DOC.01040019 REV.3 8-1

8-1

Chapter 8 Redundant Switch Option

Table of Contents

CHAPTER 8 REDUNDANT SWITCH OPTION .................................................................................... 8-1

8.1 OVERVIEW..................................................................................................................................... 8-2

8.2 EQUIPMENT DESCRIPTION ...................................................................................................... 8-2

8.3 EQUIPMENT SET UP .................................................................................................................... 8-2 8.3.1 SIM CONTROLLER SETUP.................................................................................................... 8-2 8.3.2 AMPLIFIER SETUP ................................................................................................................. 8-3

8.4 INSTALLATION............................................................................................................................. 8-4 8.4.1 SWITCH SYSTEM WITH AN OPTIONAL CABINET .......................................................... 8-4 8.4.2 SWITCH SYSTEM WITHOUT AN OPTIONAL CABINET.................................................. 8-4

8.5 OPERATION ................................................................................................................................... 8-5

8.6 DRAWING LIST ............................................................................................................................. 8-6

List of Tables Table 8-1. Switch Parameters and Settings............................................................................................. 8-3 Table 8-2. Switch System Drawings ........................................................................................................ 8-6


8-2 DOC.01040019 REV.3

8.1 Overview This section described the installation and operation of the optional redundant 1:1 and 1:2 switch assemblies. This R series redundant switch has been specifically designed and built to integrate with rack-mount Solid State Power Amplifiers (SSPAs) Model S5CI using an external switch controller board.

8.2 Equipment Description The 1:1 switch assembly P/N 01036171 consists of a waveguide switch, a RF Load and four waveguides that are connected to the output flange of the amplifiers. Mounting brackets are available for supporting the RF load and the waveguide switch above the amplifiers as well as toward the rear of the cabinet. The RF input is one of these three configurations: two direct inputs, splitter-inputs and ganged inputs. The RF input configuration is an option, which is defined by the user when the equipment is placed on order. The RF block diagram for each of these inputs is shown in drawing 01036173.

The Switch Interface Module (SIM) controller P/N 01042670 has a pig-tailed cable, which is connected to the waveguide switch for control and monitor functions. This SIM board is serially linked to the amplifiers through the CAN-bus and receives the +28VDC from either amplifier through ribbon cables P/N 01039926. The SIM board has a microprocessor controller that detects the amplifier's auto/manual mode, fault status, and decides when to rotate the waveguide switch using onboard buffer-drivers. The SIM board monitors the waveguide switch(s) position and relays the information to the amplifiers. Interconnection between the amplifier, the SIM controller, and the waveguide switch is shown in drawing 01036175.

8.3 Equipment Set Up The SSPA redundant switch system is set up in the factory to operate as a 1:1 or a 1:2 switch system. If the SIM controller or the SSPA is replaced in the field the set up procedures below should be verified to ensure proper switch system operation.

8.3.1 SIM Controller Setup 1. Locate the dipswitch SW1 on the SIM controller board.

2. Verify that SW1-position 5 is set to the ON position for both 1:1 and 1:2 systems.

3. Verify that SW1 positions 1 to 4 are to the OFF position for 1:1 switch and yet to be determined for 1:2 switch.


DOC.01040019 REV.3 8-3

8.3.2 Amplifier Setup 1. Bring both PA1 and PA2 to normal operation with no faults, and alarms.

2. From the amplifier's main menu depress the "Menu" keypad so that the front panel screen shows nine menus.

3. Use the Arrow keypads to stroll the highlighted "Setup" field.

4. Press the Enter keypad and use the arrow keypad to select the switch system set up menu (5/5).

5. From this menu use the up/down keypad to scroll through the different parameters and use the left/right keypad to change the content of the parameter (line item) as shown in table 8-1.

Table 8-1. Switch Parameters and Settings

Parameter Setting

Switch System 1:1 or 1:2 as required.

Amp ID 1 or 2 or 3 (Note the top amplifier is set 1 and sequentially down)

Priority (The default is 1 in the 1:1 system) (Optional for a 1:2 system)

Switch Mode MAN (Manual or Auto, it can be changed anytime from the switch control screen).

Power Copy YES is default (Yes or No selectable)

Sequential Drive NO is set (Yes or No selectable)


8-4 DOC.01040019 REV.3

8.4 Installation The two types of switch system are switch systems with an optional cabinet and switch systems without an optional cabinet.

8.4.1 Switch System with an Optional Cabinet

A 23x36x72 inch (Width x Depth x Height) cabinet is available as an option. The switch assembly and all the amplifiers are assembled in the cabinet for integration test. The amplifiers are shipped in a separate container while the switch assembly remains in the cabinet in another crate. The installation is straight forward by following guidelines listed below and the amplifier’s manual.

1. Locate the cabinet on site to the desired location.

2. The system RF output location is shown on the assembly drawing (01036171 for 1:1 switch).

3. Secure the cabinet bottom plate to the floor with 3/8-16 screws.

4. Connect the cabinet ground to the station ground.

5. Make prime power at terminal board TB1 per amplifier’s requirement.

6. Make system RF output connection with the gasket and hardware provided in the ship kit.

7. If the mating flange to the system output should be a cover, use a flat gasket.

8. If the mating flange is the grooved type the user should prepare a full thickness gasket (not provided by CPI).

9. Remove all the packing material inside the cabinet.

10. Install the amplifiers into slide locations.

11. Make waveguide flange connections with the gaskets and hardware in the ship kit.

12. Verify that the all cables from the SIM controller are connected per diagram 01036175.

8.4.2 Switch System Without An Optional Cabinet

The user will have to review the layout of the switch assembly by itself as shown on sheet 2/4 of the assembly drawing. Determine where to install the amplifier slides, RF load bracket and switch mounting brackets in the user’s cabinet. The RF input isolators are preferably installed on the top cover. Use the above steps 2 to 4 to complete the installation.


DOC.01040019 REV.3 8-5

8.5 Operation The switch assembly is selectable to operate in either Manual or Auto Mode from the switch control menu of either amplifier. In Manual mode the user will have to navigate through the amplifier menu and command the waveguide switch to change position, placing the amplifier Online or Offline. In the Auto mode the fault status of the online amplifier will trigger the no-fault offline amplifier to be transferred to Online.

The following steps can be used to verify the waveguide switch operation for the first time from PA1 in Local/Manual mode.

a. On PA1 main screen set PA to LOCAL mode. Depress the Menu keypad and use the Arrow keypad to scroll to the highlighted Switch Control menu. Depress the Enter keypad. The switch mimic diagram will appear.

b. From PA1 switch control screen. Verify the mode is in Manual. Use the Arrow keypad to move to the Switch Rotate field. Depress the Enter keypad a few times and verify that the waveguide switch rotates upon the command to switch.

c. Command the switch rotation so that the front panel Online LED is ON. Verify the front-panel mimic diagram displays PA1 to system output port and PA2 to RF termination.

d. Command the switch rotation so that the front panel Online LED is OFF. Verify the front-panel mimic diagram displays PA1 to RF termination and PA2 to system output port.

To verify the automatic switch in local/auto mode use the following steps:

a. On PA1 control panel, select PA1 Online and then Auto mode from the Switch Control menu.

b. Verify that PA2 switch control menu also displays Auto mode.

c. Verify the manual Switch rotate command is disabled.

d. Create a PA 1 fault.

e. Verify the PA2 is switched Online and PA1 is terminated.

f. Reset PA1 fault.

To verify the switch RF inhibit function use the following steps:

a. Set RF output power of both amplifiers to (Rated –10) dBm.

b. Manually rotate and hold the waveguide switch S1 to the position halfway between the two normal operating positions.

c. Verify that the RF output power drops to zero and is muted while the amplifier is either Online or Offline (termination) completely.


8-6 DOC.01040019 REV.3

8.6 Drawing List The Indoor SSPA switch system drawings listed in table 8-2 are included in this Chapter.

Table 8-2. Switch System Drawings

Title Drawing Number

Assembly, 1:1 C-band SSPA 01036171

RF Block Diagram 01036173

Interconnect Diagram 01036175

Cable Assembly, SIM 01039926

Schematic, Switch Interface Module 01042671

DRAWINGS

DOC.01040088 REV.5 9-1

9-1

Chapter 9 Drawings

The Indoor SSPA drawings listed below are included in this chapter.

Table 9-1. Indoor SSPA Drawings

Drawing Number Title

01030894 Specification IDU 125W C-band SSPA

01032279 Specification IDU 225W C-band SSPA

01032346 Remote RS-422/485 Cable

01032402 RF Diagram 225W SSPA, C-Band

01032412 SSPA Binary Computer Interface Protocol

01032502 RF Diagram 125W SSPA, C-Band

01040500 Outline Drawing, 125/225W SSPA

01044544 Ship Kit C-band

01044612 Assembly, Power Supply

01044614 Assembly, RF 125W/225W SSPA

01044737 Outline Ku-band

01044738 Ship Kit Ku-band

01044739 RF Diagram Ku-band

01044742 Assembly, RF X-band

01044747 Outline 200W X-band

01044750 Specification 200W X-band

01044751 Specification 100W SSPA, X-band

01044752 RF Diagram 200W SSPA, X-band

01044753 RF Diagram 100W SSPA, X-band

DRAWINGS

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Table 9-1. Indoor SSPA Drawings (continued)

Drawing Number Title

01044754 Ship Kit X-band

01044794 Specification Ku-band

01044820 RF Block Diagram, 200W Extended C-Band IDU

01044830 RF Block Diagram, 125W Extended C-Band IDU

01044840 SSPA IDU Block Diagram

Note: Paper Manual: Drawings are in numerical order. Printed drawings follow this page. CD Manual: Drawing files are in the “Drawings” folder.

CUSTOMER WARRANTY AND SUPPORT

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A

Appendix A Customer Support and Warranty

Information For details, refer to separate supplements included following this page.

CUSTOMER WARRANTY AND SUPPORT

A-2 APP.01040025 REV.1


L BAND BUC OPTION

APP.01040024 REV.3 B-1

B-1

Appendix B L-Band BUC Option

The Block Up-Converter (BUC) allows the user to operate the amplifiers with L-band input frequencies from 900 to 1825 MHz typically. The L-band input signal can is converted to microwave bands through the BUC using a frequency of local operation (FLO). The following table provides an example of an L-band frequency to Ku-band frequency conversion over two different Ku-band frequency ranges.

Table B-1. Example of L-Band To Ku-Band Conversion

Ku-Band Output Range (14GHz - 14.5GHz)

Input Frequency +FLO Output Frequency

0.95 GHz 1.2 GHz

1.45 GHz

13.05 GHz 13.05 GHz 13.05 GHz

14.00 GHz 14.25 GHz 14.5 GHz

Ku-Band Output Range (13.75GHz - 14.5GHz)

Input Frequency +FLO Output Frequency

0.95 GHz 1.325GHz 1.7 GHz

12.8 GHz 12.8 GHz 12.8 GHz

13.75 GHz 14.125 GHz

14.5 GHz

If the BUC Local Oscillator (LO) reference fails or drifts outside of the capture range, a “BUC alarm” signal will be reported on the optional CPI remote panel or through the supplied “Setup & Remote software”.

The “alarm” will be reported via the CIF port, but the amplifier will take no action.

Alternatively, the “BUC alarm” can be set to a latched “fault” via a user setting in the CIF protocol (using the supplied utility software or the 1RU remote control). In the event that the BUC FLO becomes unlocked, a fault will be reported, and the amplifier will inhibit RF and shutdown HV to the TWT. A reset command will restore the amplifier to normal operation once the fault has cleared.

L BAND BUC OPTION

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The Local Oscillator reference can be supplied in one of three formats below:

• Multiplexed Local Oscillator reference frequency on the L-Band signal through the type N RF input connector.

• An internal LO reference integrated into the BUC.

• An external LO reference through a separate BNC connector.

Multiplexed Reference: Most L-band modems now have a built-in 10 MHz reference. The CPI BUC can be configured to accept this reference, which is multiplexed with the L-band signal on the same connector. This is CPI’s standard configuration, and it is recommended for most applications. The level of 10 MHz should be +5 to -5 dBm at the amplifiers input.

Internal Reference: An internal 10MHz reference signal with ±1 ppm stability includes in the BUC module. This oscillator performance is not as precise as a GPS reference, but it is adequate for many applications.

External Reference: This allows the user to connect a system 10 MHz reference through a BNC cable. This is used for systems that need to slave all amplifiers to a common timing reference, such as the GPS signal. The level required is +5 to -5 dBm.

Notes: • Refer to the Drawing section of the respective Service manual for more information.

• Refer to the amplifier specifications in the documents section of this manual for performance of the amplifier with a BUC.

Precautions: • The modulator’s gain should be adjusted for the best signal to noise ratio (-60dBc).

Adding fixed attenuators at the modulators’ output can adjust the power level.

• A multiplexer should be used rather than a combiner. In case of using a combiner, band pass filters should be added to modems’ output or a 10 dB fixed attenuator can be added to each combiner’s input.

• Please take care to ensure that the proper L-band frequency range is not exceeded or damage may result.

• The L-band input signal must be free of the spurious signals that can cause poor performance or even cause the amplifier to fail.

• The level of 10 MHz should be +5 to -5 dBm at the amplifiers input.

INSTALLATION, OPERATION, AND PREVENTATIVE ......This manual describes the installation and operation...

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