PowerWave Cell Extender

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1930-1990 MHz Installation and Service Manual OS-1900-SA(X)/SB(X) Outdoor Multi-Carrier Power Amplifier (MCPA) System G3S-1900-125 MCPA © Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B June 2004

Transcript of PowerWave Cell Extender

Page 1: PowerWave Cell Extender

1930-1990 MHz

Installation and Service Manual

OS-1900-SA(X)/SB(X) Outdoor Multi-Carrier Power Amplifier (MCPA) System

G3S-1900-125 MCPA

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B June 2004

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© 2004 Powerwave Technologies Incorporated. All rights reserved.

Powerwave Technologies, and the Powerwave logo are registered trademarks

Powerwave Technologies, Inc. reserves the right to make changes to the documentation and equipment, including but not limited to component substitution and circuitry changes. Changes that impact this manual may subsequently be incorporated in a later revision of this manual. This Powerwave product is designed to operate within the Normal Operating (typical operating) ranges or conditions specified in this document. Operation of this equipment beyond the specified ranges in this document may cause (1) spurious emissions that violate regulating body rules; (2) the equipment to be automatically removed from service when maximum thresholds are exceeded; or (3) the equipment to not perform in accordance with its specifications. It is the Operator's responsibility to ensure this equipment is properly installed and operated within Powerwave operating specifications to obtain proper performance from the equipment and to comply with regulating body rules.

June 2004 Powerwave Technologies, Inc. Tel: (714) 466-1000 1801 East St. Andrew Place (888) 797-9283 Santa Ana, CA 92705 Fax: (714) 466-5800 Web Site: www.powerwave.com

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B June 2004

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved

Warnings, Cautions, and Notes Warnings, cautions, and notes are found throughout this manual where applicable. The associ-ated icons are used to quickly identify a potential condition that could result in the consequences described below if precautions are not taken. Notes clarify and provide additional information to assist the user.

Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards in-volved with electrical and RF circuitry and be familiar with standard practices for preventing accidents.

Caution This caution symbol means reader be careful. In this situation, the user might do something that could result in equipment damage or loss of data.

Note This note symbol means reader take note. Notes contain helpful suggestions or ref-erences to material not covered in the document. Procedures are not contained in notes.

044-05140 Rev. B ii JJuunnee 22000044

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved

Revision Record

Revision Letter Date of Change Reason for Change A December 2003 Original version of product.

B June 2004 Updated manual to add diversity antenna configu-ration and other miscellaneous changes.

004444--0055114400 RReevv.. BB ii June 2004

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B iii June 2004

Table Of Contents Paragraph Page Number Section 1 Principles of Operation Number 1-1 Introduction .........................................................................................................................1-1 1-2 General Description............................................................................................................1-1 1-2.1 SA(X) Models.....................................................................................................................1-1 1-2.2 SB(X) Models.....................................................................................................................1-2 1-2.3 Amplifiers ...........................................................................................................................1-2 1-2.4 Universal Control Module ..................................................................................................1-2 1-2.5 Rectifiers ............................................................................................................................1-2 1-2.6 Alarms................................................................................................................................1-2 1-2.7 Functional and Physical Specifications .............................................................................1-2 1-2.8 Equipment Changes ..........................................................................................................1-2 1-2.9 System Components and Documents ...............................................................................1-3

Section 2 Installation 2-1 Introduction .........................................................................................................................2-1 2-2 Site Survey .........................................................................................................................2-1 2-3 Electrical Service Recommendations.................................................................................2-1 2-4 Heat Disipation ...................................................................................................................2-2 2-5 Unpacking and Inspection ..................................................................................................2-3 2-6 Installation Instructions .......................................................................................................2-4 2-6.1 Chassis Mounting Examples .............................................................................................2-5 2-6.2 Wind Loading.....................................................................................................................2-6 2-6.3 RF Cable Connections.......................................................................................................2-6 2-6.4 Alarm Cable Connections..................................................................................................2-8 2-6.5 Bias-T Connections .........................................................................................................2-10 2-6.6 AC Power Connections....................................................................................................2-10 2-6.7 125-Amp Rectifier Installation (930-00016-008)..............................................................2-11 2-6.8 148-Amp Rectifier Installation (930-00018-005)..............................................................2-12 2-6.9 Amplifier Installation.........................................................................................................2-13 2-6.10 Air Flow Panels..............................................................................................................2-13 2-6.11 DC Power Connections for OS-1900-SA(X) Three-Sector System ..............................2-13

Section 3 Operating Instructions 3-1 Introduction .........................................................................................................................3-1 3-2 Location and Function of Amplifier Module Controls and Indicators..................................3-1 3-3 Universal Control Module (UCM) Controls and Indicators .................................................3-3 3-3.1 UCM LED Indicators ..........................................................................................................3-3 3-3.2 Pilot Tone Selections .........................................................................................................3-3 3-3.3 DIP Switch Functions.........................................................................................................3-4 3-3.4 TX Gain Adjust...................................................................................................................3-4 3-4 148-Amp Rectifier LED Indicators ......................................................................................3-5 3-5 Initial Start-Up and Operating Procedures ........................................................................3-5 3-5.1 Bypass Operation Check: .................................................................................................3-7

Section 4 Principles of Operation 4-1 Introduction .........................................................................................................................4-1 4-2 RF Input Signal ...................................................................................................................4-1 4-3 RF Output Load ..................................................................................................................4-1 4-4 System Functional Description...........................................................................................4-1 4-5 G3S-1900-125 Amplifier Module ........................................................................................4-3 4-5.1 Main Amplifier ....................................................................................................................4-4 4-5.2 Error Amplifier ....................................................................................................................4-4

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4-5.3 Amplifier Monitoring ...........................................................................................................4-4 4-5.4 Amplifier Module Cooling...................................................................................................4-4 4-5.5 Power Distribution..............................................................................................................4-4 4-5.6 Intermodulation ..................................................................................................................4-4 4-5.7 Two-Tone Intermodulation.................................................................................................4-4 4-5.8 Multitone Intermodulation ..................................................................................................4-5 4-5.9 Amplifier Monitoring ...........................................................................................................4-5 4-5.10 Pilot Tone Control ............................................................................................................4-6 4-5.11 Alarm Interface ................................................................................................................4-7 4-5.12 Plug-In Rectifiers .............................................................................................................4-7 Section 5 Maintenance 5-1 Introduction .........................................................................................................................5-1 5-2 Periodic Maintenance .........................................................................................................5-1 5-3 Test Equipment Required for Test .....................................................................................5-1 5-4 Cleaning Air Inlets/Outlets/Filters .......................................................................................5-2 5-5 Performance Test ...............................................................................................................5-2 5-6 Field Replaceable Parts and Modules................................................................................5-2 5-6.1 Power Amplifier Module.....................................................................................................5-2 5-6.2 Amplifier Cooling Fans.......................................................................................................5-3 5-6.3 Universal Control Module (UCM).......................................................................................5-3 5-6.4 125-Amp Rectifier (930-00016-008) ..................................................................................5-3 5-6.4.1 Hot Swap in a Two-Rectifier System..............................................................................5-3 5-6.4.2 Replacement in a One-Rectifier System ........................................................................5-4 5-6.5 148-Amp Rectifier (930-00018-005) ..................................................................................5-4 5-6.5.1 Hot Swap in a Two-Rectifier System..............................................................................5-4 5-6.5.2 Replacement in a One-Rectifier System ........................................................................5-5 5-6.6 Duplexer/Universal Input Attenuator (UIA) Tray................................................................5-5 5-6.7 Universal Input Attenuator (UIA) Cooling Fan Assembly ..................................................5-5

Section 6 Troubleshooting 6-1 Introduction .........................................................................................................................6-1 6-2 Troubleshooting..................................................................................................................6-1 6-2.1 DC Voltage Indicators Not Illuminated ...............................................................................6-1 6-2.2 OVER PWR Illuminated......................................................................................................6-2 6-2.3 HIGH TEMP Illuminated .....................................................................................................6-2 6-2.4 VSWR Illuminated...............................................................................................................6-2 6-2.5 DC FAIL Illuminated ...........................................................................................................6-3 6-2.6 FAN FAIL Illuminated .........................................................................................................6-3 6-2.7 LOOP FAIL Illuminated.......................................................................................................6-3 6-2.8 LOW PWR Illuminated........................................................................................................6-3 6-2.9 LPA DISABLE Illuminated ..................................................................................................6-3 6-3 Return for Service Procedures ...........................................................................................6-4 6-3.1 Obtaining an RMA ..............................................................................................................6-4 6-3.2 Repackaging for Shipment .................................................................................................6-4

List of Appendices Appendix A Specifications ............................................................................................................A-1 A-1 OS-1900-SA(X)/SB(X) System Specifications ....................................................................A-1 A-2 Amplifier Model G3S-1900-125 Specifications ...................................................................A-2 A-3 125-Amp Rectifier Specifications ........................................................................................A-3 A-4 148-Amp Rectifier Specifications ........................................................................................A-4 Appendix B Power Setting Procedures.........................................................................................B-1 B-1 Power Setting Calculations .................................................................................................B-1 B-2 Power Setting Procedure ....................................................................................................B-2

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Table Page Number List of Tables Number

1-1 OS-1900-SA(X)/SB(X) Major Components.........................................................................1-3 2-1 Site Preparation...................................................................................................................2-1 2-2 Averaged DC Current Load.................................................................................................2-2 2-3 Averaged Heat Loading ......................................................................................................2-2 2-4 Materials Required for Installation but Not Supplied...........................................................2-4 2-5 Tools Needed for Installation ..............................................................................................2-4 2-6 Form-C Alarm Terminal Block Relay Connections .............................................................2-8 2-7 Form-C Alarm Truth Table ..................................................................................................2-9 3-1 Amplifier Module DC Indicators RF Switch Definitions .......................................................3-1 3-2 Amplifier Module RF Control and Indicators Definitions .....................................................3-2 3-3 UCM LED Descriptions .......................................................................................................3-3 3-4 Pilot Tone Switch Configuration Table................................................................................3-3 4-1 G3S-1900-125 Interface Connector Pinouts ......................................................................4-5 4-2 Pilot Frequency Setting Based on PCS Frequency Block of Operation .............................4-6 5-1 Periodic Maintenance..........................................................................................................5-1 6-1 Amplifier Module DC and Logic Connector Definitions.......................................................6-2 A-1 OS-1900-SA(X)/SB(X) System Specifications ....................................................................A-1 A-2 Amplifier Model G3S-1900-125 Functional Specifications..................................................A-2 A-3 125-Amp Rectifier Model 930-00016-008 Specifications....................................................A-3 A-4 148-Amp Rectifier Model 930-00018-005 Specifications....................................................A-4 B-1 OS-1900-SA(X)/SB(X) Gain Example.................................................................................B-1 Figure Page Number List of Figures Number

1-1 OS-1900-SA(X)/SB(X) Front Isometric View ......................................................................1-3 1-2 OS-1900-SA(X)/SB(X) Rear Isometric View .......................................................................1-4 1-3 OS-1900-SA(X)/SB(X) Front-View with Dimensions ..........................................................1-4 1-4 OS-1900-SA(X)/SB(X) Rear-View with Dimensions ...........................................................1-5 1-5 OS-1900-SA(X)/SB(X) Side-View with Mounting Dimensions............................................1-5 1-6 OS-1900-SA(X)/SB(X) Side-View with Panels and Dimensions.........................................1-6 1-7 OS-1900-SA(X)/SB(X) Single (SA1) and Double-Sector(SA2) Front Panel Removed ......1-6 1-8 OS-1900-SA(X)/SB(X) Three-Sector (SA3) Front Panel Removed....................................1-7 1-9 OS-1900-SB1 Front Panel Removed..................................................................................1-7 1-10 OS-1900-SB2 Front Panel Removed..................................................................................1-8 1-11 OS-1900-SB3 Front Panel Removed..................................................................................1-8 1-12 G3S-1900-125 Multi-Carrier Power Amplifier Isometric View.............................................1-9 1-13 G3S-1900-125 Multi-Carrier Power Amplifier Front, Side, and Rear Views .......................1-9 1-14 UCM Junction Board .........................................................................................................1-10 1-15 UCM Front Panel...............................................................................................................1-10 1-16 125-Amp Rectifier Front Panel..........................................................................................1-10 1-17 125-Amp Rectifier Subrack ...............................................................................................1-11 1-18 148-Amp Rectifier Isometric Views ...................................................................................1-12 1-19 148-Amp Rectifier Tray and Panel Views .........................................................................1-12 2-1 Mounting Bracket ................................................................................................................2-5 2-2 Outdoor Enclosure Mounting Examples .............................................................................2-5 2-3 OS-1900-SA(X) Rear Interface Panel.................................................................................2-7 2-4 OS-1900-SB(X) Rear Interface Panel.................................................................................2-7 2-5 Form-C Alarm Contacts Wiring Example ............................................................................2-8 2-6 Bias-T Terminal Block and Wiring Diagram......................................................................2-10 2-7 AC Power Cable Connections (125-Amp Rectifier, 930-00016-008) ...............................2-10 2-8 AC Power Cable Connections (148-Amp Rectifier, 930-00018-005) ...............................2-11 2-9 148-Amp Rectifier (930-00018-005) Latching Example....................................................2-12

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B vi June 2004

2-10 OS-1900-SA3 Inter-Enclosure DC Wiring Interconnect Example.....................................2-14 3-1 Amplifier Module Controls and Indicators ...........................................................................3-1 3-2 UCM Controls and Indicators ..............................................................................................3-4 3-3 148-Amp Rectifier LED Indicators.......................................................................................3-5 3-4 Amplifier Front Panel...........................................................................................................3-6 3-5 125-Amp Rectifier Power On/Off Switch Location ..............................................................3-6 3-6 Bypass Path Mode ..............................................................................................................3-7 3-7 Universal Control Module....................................................................................................3-8 3-8 OS-1900-SA(X) Interface Panel..........................................................................................3-9 3-9 OS-1900-SB(X) Interface Panel..........................................................................................3-9 4-1 OS-1900-SA(X) Single-Sector Configuration Example.......................................................4-2 4-2 OS-1900-SB(X) Single-Sector Configuration Example.......................................................4-2 4-3 G3S-1900-125 Power Amplifier Module Functional Block Diagram ...................................4-3 4-4 G3S-1900-125 Interface Connector....................................................................................4-6 6-1 DC and Logic Connector (Male, on Rear of G3S-1900-125 Amplifier Module)..................6-1

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-1 June 2004

Section 1 General Description 1-1 Introduction This manual contains information and procedures for the installation, operation, and maintenance of the Powerwave OS-1900-SA(X) and OS-1900-SB(X) Outdoor Multi-Carrier Power Amplifier (MCPA) System. The manual is organized into sections as follows:

• Section 1. General Description • Section 5. Maintenance • Section 2. Installation • Section 6. Troubleshooting • Section 3. Operating Instructions • Appendix A. Specifications • Section 4. Principles of Operation • Appendix B. Amplifier Power Setting Procedure

1-2 General Description The OS-1900-SA(X)/SB(X) Multi-Carrier Power Amplifier (MCPA) system is an AC powered, lin-ear, feedforward power amplifier system that operates in the 60 MHz frequency band from 1930 MHz to 1990 MHz with an instantaneous bandwidth of 25 MHz. It consists of:

• One or more outdoor enclosure assemblies. • SA(X) Three Models:

SA1 – one enclosure, one sector SA2 – one enclosure, two sectors SA3 – two enclosures, three sectors

• SB(X) Three Models: SB1 – one enclosure, one sector SB2 – two enclosures, one sector each SB3 – three enclosures, one sector each

• One or more model G3S-1900-125 amplifiers. • One or more model 930-00016-008, 125-Amp

or 930-00018-005, 148-Amp rectifiers. Designed for outdoor use, the NEMA 3R rated enclosure has a sturdy aluminum case with re-movable front and rear lock-down ventilating panels as shown in figures 1-1 through 1-6. The en-closures has six mounting brackets (three on each side) used to secure it to its predetermined location. Access to the RF, power, and alarm cabling is located at the lower rear of the enclosure.

The enclosure protects the Powerwave equipment from outdoor elements as well as housing the alarm summary board and the electrical interface for the 125-Amp rectifier (or 148-Amp rectifier) and G3S-1900-125 MCPA(s). The OS-1900-SA(X)/SB(X) system is shown in figures 1-7 and 1-8.

1-2.1 SA(X) Models For a single-sector SA1 model, the enclosure houses one G3S-1900-125 MCPA module. Two modules are required for a two-sector solution (SA2 with two MCPAs). A three-sector solution consists of one two-sector (SA2) enclosure and an additional enclosure containing one MCPA module with DC power supplied from the two-sector enclosure that includes an additional recti-fier. Each enclosure can contain the following:

• Up to two MCPA modules.

• Up to two 125-Amp or 148-Amp rectifiers (not mixed).

• Four input duplexers.

• Two universal input assemblies with DC fans.

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-2 June 2004

• Two universal controllers.

• Two integrated output duplexer/RX filter assemblies.

• Four bypass transfer switches.

• Four Bias-T units.

1-2.2 SB(X) Models The SB(X) models are the same as the SA1 models except a third antenna configuration is in-corporated that includes an additional duplexer, 2:1 splitter for Rx1 and Rx3, bypass transfer switch, and Bias-T. The interface panel also includes additional connections for the third antenna. Each enclosure is identical therefore, a one-sector system consists of one single-sector enclosure, two sectors consist of two single-sector enclosures, and three sectors consist of three single-sector enclo-sures.

1-2.3 Amplifiers The all solid-state G3S-1900-125 plug-in amplifier module, shown in figures 1-9 and 1-10, is de-signed to produce high-peak output power. The modular construction and Light Emitting Diode (LED) based operational status and fault indicators help minimize downtime. The turn-on and turn-off sequence of voltages are fully automatic, as is overload protection and recycling. Inadver-tent operator damage from front panel manipulation is virtually impossible. A nominal 52 Amps DC of current is required for the G3S-1900-125 amplifier.

1-2.4 Universal Control Module A universal control module (UCM), one for each sector, is connected to one UCM junction board, shown in figures 1-11 and 1-12. Each UCM provides system status LED indicators, configuration switches, RS232 PC port, and gain adjustment potentiometer.

1-2.5 Rectifiers The 125-Amp and 148-Amp rectifiers and associated subracks shown in figures 1-13 through 1-16, require a primary input power between 176 to 264 VAC. The rectifier converts the AC input power to the +27 VDC for use by the system. The 125-Amp rectifier is rated up to 24 Amps AC at full load at 176 VAC and the 148-Amp rectifier is rated up to 25.5 Amps AC at full load at 180 VAC. The system is expected to draw a typical 17 Amps AC during normal operation with two amplifiers. For circuit breaker protection, refer to section 2 and appendix A - Specifications.

1-2.6 Alarms The OS-1900-SA(X)/SB(X) MCPA system also provides four Form-C dry contact alarms per sec-tor to report system status when the optional alarm board is installed. See section 2.

1-2.7 Functional and Physical Specifications Functional and physical specifications for the OS-1900-SA(X)/SB(X) system components are listed in appendix A. Section 4 of this manual contains a functional block diagram that illustrates the system’s operational layout for one sector.

1-2.8 Equipment Changes Powerwave Technologies, Inc. reserves the right to make changes to the subject equipment, in-cluding but not necessarily limited to component substitution and circuits. Changes that impact this manual may subsequently be incorporated in later revisions.

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OS-1900-SA(X)/SB(X) Installation and Service Manual

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1-2.9 System Components and Documents Table 1-1 lists the model numbers and descriptions of major components that comprise the OS-1900-SA(X)/SB(X) system and the document number of the manual related to each component.

Table 1-1 OS-1900-SA(X)/SB(X) Major Components

Model Manual Description Quantity per system

930-00016-008 * (128981-7) 125-Amp Rectifier 1 or 2

930-00018-005 ** 148-Amp Rectifier 1 or 2 G3S-1900-125 044-05122 125-Watt Amplifier 1, 2, or 3

Field-Replaceable Amplifier Cooling Fans 800-00972-002 Rear Fan Assembly 2/amplifier 800-01075-003 Front Fan Assembly 2/amplifier

800-07640-001 Universal Input Attenuator (UIA) Fan Assembly 1 or 2

* Manufactured by Transistor Devices, Inc. ** Manufactured by Cherokee International

((RReeccttiiffiieerrss aarree nnoott iinntteerrcchhaannggeeaabbllee))

Figure 1-1 OS-1900-SA(X)/SB(X) Front Isometric View

Mounting Brackets, Three Each Side

Ventilating Panel, Front and Rear

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-4 June 2004

Figure 1-2 OS-1900-SA(X)/SB(X) Rear Isometric View

Figure 1-3 OS-1900-SA(X)/SB(X) Front-View with Dimensions

SA(X) Interface Panel

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-5 June 2004

Figure 1-4 OS-1900-SA(X)/SB(X) Rear-View with Dimensions

Figure 1-5 OS-1900-SA(X)/SB(X) Side-View with Mounting Dimensions

SB(X)SA(X)

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-6 June 2004

Figure 1-6 OS-1900-SA(X)/SB(X) Side View with Panels and Dimensions

Figure 1-7 OS-1900-SA(X)/SB(X) Single (SA1) and Double-Sector (SA2) Front Panel Removed

Rectifier

UCM

MCPA

UIA Cooling Fan (UCM

Junction Board not Shown)

Air Flow Panels

Air Flow Panel

SA1 SA2

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-7 June 2004

Figure 1-8 OS-1900-SA(X)/SB(X) Three-Sector (SA3) Front Panel Removed

Figure 1-9 OS-1900-SB1 Front Panel Removed

UIA Cooling Fan

MCPA

UCM

Rectifiers

(UCM Junction Board not Shown)

Air Flow Panels

Rectifier

UCM

(UCM Junction Board not Shown)

MCPA

UIA Cooling Fan

Air Flow Panels

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-8 June 2004

*All three sectors are identical

Figure 1-10 OS-1900-SB2 Front Panel Removed

Figure 1-11 OS-1900-SB3 Front Panel Removed

Both sectors are identical

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-9 June 2004

Figure 1-12 G3S-1900-125 Multi-Carrier Power Amplifier Isometric View

Figure 1-13 G3S-1900-125 Multi-Carrier Power Amplifier- Front, Side and Rear Views

Release Latch

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-10 June 2004

Figure 1-14 UCM Junction Board

Figure 1-16 125-Amp Rectifier Front Panel

Figure 1-15 UCM Front Panel

Voltage Adjust

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-11 June 2004

Figure 1-17 125-Amp Rectifier Subrack

Rear

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 1-12 June 2004

Figure 1-18 148-Amp Rectifier Isometric Views

Figure 1-19 148-Amp Rectifier Tray and Panel Views

Front Rear

Front Rear

Rectifier

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-1 June 2004

Section 2 Installation 2-1 Introduction This section contains unpacking, inspection, installation instructions and recommendations for the OS-1900-SA(X) and OS-1900-SB(X) Outdoor Multi-Carrier Power Amplifier (MCPA) System. It is important to perform the following:

1. Carefully read all material in this section prior to equipment installation.

2. Review any Federal Communications Commission (FCC) rules and local codes as they ap-ply to your installation.

3. Before operating, read the operating instructions in section 3.

2-2 Site Survey Powerwave Technologies recommends that site surveys be performed by qualified individuals or firms prior to equipment ordering or installation. Performing a detailed site survey will reduce or eliminate installation and turn-up delays caused by oversights.

Table 2-1 Site Preparation Description Measurement

Width: 15.87 inches Height: 34 inches Depth: 34 inchesEnclosure Dimensions Allow adequate clearances in the front and rear of the enclosure for cooling airflow.

Enclosure Weight (shipping) 120 lbs (without amplifiers) Enclosure Weight (fully popu-lated)

231 lbs (45 lbs/amplifier, one 21 lb rectifier) 221.5 lbs (45 lbs/amplifier, one 13.5 lb rectifier)

2-3 Electrical Service Recommendations Powerwave Technologies recommends that proper AC line conditioning and surge suppression be provided on the primary AC input to the +27 VDC power source. All electrical service should be installed in accordance with the National Electrical Code, any applicable state or local codes, and good engineering practice. Special consideration should be given to lightning protection of all systems in view of the vulnerability of most transmitter sites to lightning. Lightning arrestors are recommended in the service entrance. Straight, short ground runs are recommended. The elec-trical service must be well grounded.

Each amplifier system should have its own circuit breaker, so a failure in one does not shut off the whole installation. Circuit breakers should be capable of handling the anticipated inrush cur-rent, in a load center with a master switch. A 30-Amp AC circuit breaker using 10 AWG power cable for each rectifier is recommended for 220 VAC input service.

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OS-1900-SA(X)/SB(X) Installation and Service Manual

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According to the laws of probability used to formulate Erlang tables, rarely are all channels trans-mitting at the same time. We can use Erlang tables to predict typical maximum current usage. Table 2-2 describes the current load for a 3-sector (70%), 2-sector (80%), omni (90%), and typi-cal (100%) site using G3S-1900-125 model amplifiers.

Battery backup or UPS systems should be installed in remote sites or in sites which experience brownout conditions or generator switchovers. Adding this equipment should eliminate the need for site visits by technicians after brownouts or power outages. Battery backup systems also pro-vide excellent DC filtering as a side benefit.

Table 2-2 Averaged DC Current Load (Amperes; 125 Watt) (typical, based on % of output power @ 26 VDC)

Amplifier Power

No. Of Amplifiers

3-Sector (70%) Averaged Current

2-Sector (80%) Averaged Current

1-Sector (90%) Averaged Current

100% Typical

125 3 142 155 125 2 94 99 102 104 125 1 47 49 51 52

2-4 Heat Disipation Air conditioning of this Powerwave equipment is not required unless this equipment is installed in interior location (i.e. an equipment closet inside of a building).

Each G3S-1900-125 amplifier generates 4364 BTUs typical (4364 BTUs max) of heat at full power. A fully populated OS-1900-SA2 enclosure (two-sectors) operating at full power generates 8,727 BTUs of heat typically. A single sector OS-1900-SB(X) enclosure operating at full power generates 4364 BTUs. Forced ambient air over the amplifier heat sinks dissipates the generated heat to the outside of the enclosure. To ensure the required airflow, the front and rear panel filter assemblies must be cleaned periodically (refer to section 6). Sufficient free space surrounding the enclosure is required to effectively cool the amplifiers (refer to table 2-1).

In keeping with section 2-3, table 2-3 lists the heat loading for a 3-sector (70%), 2-sector (80%), omni (90%), and typical (100%) site using both G3S-1900-125 model amplifiers.

Table 2-3 Averaged Heat Loading (British Thermal Units/hr; 125 Watt) (typical, based on % of output power @ 26 VDC)

Amplifier Power

No. Of Amplifiers

3-Sector (70%) Averaged BTU's

2-Sector (80%) Averaged BTU's

1-Sector (90%) Averaged BTU's

100% Typical

125 3 12,127 13,091 125 2 8,084 8,403 8,648 8,727 125 1 4,042 4,202 4,324 4,364

Page 23: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-3 June 2004

2-5 Unpacking and Inspection This equipment has been operated, tested and calibrated at the factory. Only in the event of se-vere shocks or other mistreatment should any substantial readjustment be required. Carefully unpack the enclosure, amplifier module, and rectifier after they have reached the installation site. Carefully open the several containers and remove the enclosure, amplifier module, and rectifier. Retain all packing material that can be reassembled in the event that the unit must be returned.

Cau-tion

Exercise care in handling equipment during inspection to prevent damage caused by rough or careless handling.

Visually inspect the amplifier enclosure and associated equipment for damage that may have oc-curred during shipment.

Check for evidence of water damage, bent or warped chassis, loose screws or nuts, or ex-traneous packing material in the connectors or fans.

Inspect male connectors on modules and harnesses for bent connector pins. If the equipment is damaged: The carrier is your first area of recourse.

A claim should be filed with the carrier once the extent of any damage is assessed.

We cannot stress too strongly the importance of IMMEDIATE careful inspection of the equip-ment and the subsequent IMMEDIATE filing of the necessary claims against the carrier if necessary.

If possible, inspect the equipment in the presence of the delivery person. If the equipment is damaged and must be returned: Write or phone for a return authorization. Refer to section 6.

Powerwave may not accept returns without a return authorization.

Page 24: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-4 June 2004

2-6 Installation Instructions The OS-1900-SA(X)/SB(X) Multi-Carrier Power Amplifier (MCPA) System is designed for instal-lation in an interior or exterior location that permits access to the rear of the amplifier enclosure for connection of AC power, RF, and monitor cables. The installation must allow free movement of ambient air through the air intake and exhaust vents. Table 2-4 lists the materials that the in-staller will need and table 2-5 lists the tools. Refer to figures 2-1, 2-2, and 2-3 for mounting ex-amples, mounting brackets, and interface panel connector locations.

Table 2-4 Materials Required for Installation but not Supplied

Materials Needed Where Used Approximate Length (Each)

Quantity Per Enclosure

AC Power Cable rated for 50A From AC breaker panel to OS-1900-SA(X)/SB(X) As needed 1

Tie wraps (6 or 8 inch) Cable dressing As needed Unistrut OS-1900-SA(X)/SB(X) Mounting As needed Straps OS-1900-SA(X)/SB(X) Mounting As needed 3/8 x 1 x 16 TPI Hex Bolt OS-1900-SA(X)/SB(X) Mounting 6 min / 12 max 1/4 x 1 x 20 TPI Hex Bolt OS-1900-SA(X)/SB(X) Mounting 6 min / 12 max 3/8 Flat or Fender Washer OS-1900-SA(X)/SB(X) Mounting 6 min / 12 max 3/8 Lock Washer OS-1900-SA(X)/SB(X) Mounting 6 min / 12 max 1/4 Flat or Fender Washer OS-1900-SA(X)/SB(X) Mounting 6 min / 12 max 1/4 Lock Washer OS-1900-SA(X)/SB(X) Mounting 6 min / 12 max

0.5 inch foam semi-ridged coax (N male to N male)

RF input to OS-1900-SA(X)/SB(X) and RF Output from OS-1900-SA(X)/SB(X) to antenna jumper

5-40 feet 2

Weatherproofing materials RF, DC/AC, and alarm connectors As needed 30 A AC breaker Rectifier 1 per cabinet

Table 2-5 Tools Needed for Installation Tools Needed Where Used Crimp tool Ground cables Electrician’s knife Earth ground Cable cutters Ground cables Rotohammer unistrut or cabinet mounting 3/8 inch drill bit unistrut or cabinet mounting 5/16 open-end wrench Tightening and loosening SMA connectors 3/16 slotted screwdriver Securing alarm cables Wire cutters Cut tie wraps Digital power meter (up to 300 watts, 1800 to 2000 MHz) Setting output power levels Spectrum analyzer (1800 to 2000 MHz) System performance checks Dummy load (minimum 300 watts 1800 to 2000 MHz) Setting output power levels 10, 20, 30 dB; 20- and 300-watt (min.) attenuators Spectrum analysis Digital volt-ohm meter Verify power Digital amp meter Verify power

Page 25: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-5 June 2004

2-6.1 Chassis Mounting Examples The OS-1900-SA(X)/SB(X) enclosures can be installed in a variety of mounting configurations as shown in figure 2-2. Because of this, specific procedures are not provided herein. This general procedure assumes the enclosure is already sized and installed to accommodate the weight of the Powerwave and all other equipment contained therein.

The following installation procedure assumes that you are using the rectifier supplied by Power-wave. If you choose to use your own rectifier system, do not connect the 220 VAC power to the Powerwave rectifier. Mount the enclosure onto its designated location. Verify that sufficient space to slide the modules in and out is available and that the air intake and exhaust vents are not blocked. The side located mounting bracket with bolt size requirements is shown in figure 2-1.

Figure 2-1 Mounting Bracket

Figure 2-2 Outdoor Enclosure Mounting Examples

Page 26: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-6 June 2004

2-6.2 Wind Loading Wind resistance calculations are in accordance with the guidelines contained in Telecordia Tech-nologies, Inc., Electronic Equipment Cabinets, Detailed Requirements Document GR-487-CORE, Issue 1, June 1996, and can be calculated using the following formula:

P = 0.05 WH Where: P = force applied to cabinet, pounds W = cabinet width, inches H = cabinet height, inches

The calculated wind loading on the OS –1900-SA(X)/SB(X) box with a wind speed of 100 mph and no form factor (FF) is the following:

Side Load = 196 lbs. (392 lbs with FF) Frontal Load = 87 lbs. (174 lbs. with FF)

When a form factor is accounted for, the worst case loading effectively doubles the above load-ings. The form factor depends on mounting location, topography and drag coefficient of the equipment. According to the UBC (Uniform Building Code), the form factor must be accounted for.

2-6.3 RF Cable Connections All cable connections are made on the bottom of the rear panel shown in figure 2-3.

1. Connect the duplexed RF in (BTS - TX1/RX1) cable on the OS-1900-SA(X)/SB(X) to the du-plexed output of the host equipment.

2. Connect the diversity RF in (BTS - TX2/RX2) cable on the OS-1900-SA(X)/SB(X) to the di-versity output of the host equipment.

3. OS-1900-SB(X)) only: Connect the diversity RF in (BTS – TX3/RX3) cable on the OS-1900-SB(X) to the diversity output of the host equipment.

4. Connect the duplexed ANT TX/RX1cable to the antenna.

5. Connect the diversity ANT/RX2 cable to the antenna.

6. OS-1900-SB(X)) only: Connect the diversity ANT/RX3 cable to the antenna.

Do not install weatherproofing materials to cables until the power setting procedure is completed.

Page 27: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-7 June 2004

Figure 2-3 OS-1900-SA(X) Rear Interface Panel

Figure 2-4 OS-1900-SB(X) Rear Interface Panel

¼ x 20 threaded ground studs

Sector 2 Sector 1

¼ x 20 threaded ground studs

One-Sector

Page 28: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-8 June 2004

2-6.4 Alarm Cable Connections The alarm status is reported via Form-C contacts. The four Form-C alarms are: Minor, Major, Critical and Bypass. Access to the alarm connections is made through the rear panels of the en-closures. With the rear panel removed, the Form-C alarm terminal block is mounted on an L-bracket along the right-hand side, about 10 inches from the top of the cabinet. Attach the alarm output cable from the terminal block to the appropriate host interface. Refer to figure 2-5 and ta-ble 2-6 for the alarm wiring and relay connections.

Figure 2-5 Form-C Alarm Contacts Wiring Example

Table 2-6 Form-C Alarm Terminal Block Relay Connections Relay Continuity Measurement - System Off

Minor Major Critical Bypass NO to Common (C) Closed NO to Common (C) Closed NO to Common (C) Closed NO to Common (C) Closed

NC to Common (C) Open NC to Common (C) Open NC to Common (C) Open NC to Common (C) Open

Relay Continuity Measurement - System On, Alarms Off

Minor Major Critical Bypass NO to Common (C) Open NO to Common (C) Open NO to Common (C) Open NO to Common (C) Open

NC to Common (C) Closed NC to Common (C) Closed NC to Common (C) Closed NC to Common (C) Closed

Relay Continuity Measurement - System On, Alarms On

Minor Major Critical Bypass NO to Common (C) Closed NO to Common (C) Closed NO to Common (C) Closed NO to Common (C) Closed

NC to Common (C) Open NC to Common (C) Open NC to Common (C) Open NC to Common (C) Open

NO = Normally Open, NC = Normally Closed, C = Common

Page 29: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-9 June 2004

The alarms are described as follows:

MINOR Any fan fault, either from an MCPA or discrete tachometer inputs (up to three external fans).

MAJOR A major fault is asserted if:

o Any active LNA/TMA faults. o One of two active rectifiers fault.

CRITICAL A critical fault is asserted if: o Any active LNA/TMA faults. o Both of the active rectifiers fault. o MCPA fault.

BYPASS Bypass fault is asserted any time the transmit portion of the system is in critical fault or by-pass mode is forced via the configuration switches.

Table 2-7 Form-C Alarm Truth Table Alarm Bypass MCPA FE Fan RECT0 RECT1

Not Appli-cable No Enabled No Fault Enabled Enabled

Minor No Fan Fault Critical Yes Disabled Critical Yes Off FP Critical Yes Off CB Critical Yes Removed

Not Appli-cable No Reporting

Off

Minor No Fault Critical Yes Disabled Reporting Off Critical Yes Reporting Off Disabled Major No Disabled Enabled Major No Enabled Disabled

Critical Yes Disabled Disabled

Page 30: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-10 June 2004

2-6.5 Bias-T Connections With the rear panel removed, the Bias-T voltage connections are made through the rear interface panel to the terminal block located on the left side of the enclosure directly below the Form-C ter-minal block. The terminal block with associated wiring is shown in figure 2-6.

Figure 2-6 Bias-T Terminal Block and Wiring Diagram

2-6.6 AC Power Connections Install the AC circuit breaker in the circuit breaker panel as described by the manufacturer’s documentation. Ensure the circuit breaker is set to the OFF position.

The AC cable from the base station is connected to the rectifier tray’s terminal posts as shown in figures 2-7 and 2-8. Use three 10 AWG conductors to connect to the rear of the rectifier tray (the terminal connection accepts 20 to 4 AWG wire). Attach the 10-guage line wires to the line termi-nals and the WHT 10-guage wire to the ground terminal. The AC cable should be protected with a 30-Amp AC minimum circuit breaker.

Figure 2-7 AC Power Cable Connections (125-Amp Rectifier, 930-00016-008)

Line

LineGround

27V Return

Load Sharing and Alarms Connector

+27 VDC

Page 31: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-11 June 2004

Figure 2-8 AC Power Cable Connections (148-Amp Rectifier, 930-00018-005)

2-6.7 125-Amp Rectifier Installation (930-00016-008)

Warning Verify that the rectifier switch is in the off position. Turn off external primary AC power before connecting AC power cables.

1. Insert the 125-Amp rectifier in the left rectifier slot. Secure the rectifier in place by latching the front panel lever on the lower front panel as shown in figure 2-9. This technique ensures that the locking mechanism catches against the enclosure frame.

2. Check your work before applying AC voltage to the system. Make certain all connections are tight and correct.

3. Turn on the AC power to the rectifier and measure the primary AC input voltage. AC input voltage should be 176 to 264 VAC, ≤ 24 Amps AC (when the rectifier is on). If the AC input voltage is above or below the limits, call and consult an electrician before you turn on your amplifier system.

4. Turn on the rectifier and measure the primary DC output voltage for +27 VDC ±1.0 VDC. If the DC output voltage is above or below the limits, use the front panel adjustment potenti-ometer to set the voltage (reference figure 1-13).

Line

Line

Ground

+27 VDC27V Return+27 VDC

27V Return

Load Sharing and Alarms Connector

Page 32: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-12 June 2004

2-6.8 148-Amp Rectifier Installation (930-00018-005)

Warning Turn off external primary AC power before connecting AC power cables and in-stalling the rectifier unit into the OS-1900 enclosure.

1. Before installing rectifier, use flat head screw driver and turn locking screw, located in the upper right-hand corner, fully clockwise, so the latch is pointing down, as shown in figure 2-8, Example A.

2. With the latch pointing down, insert the 148-Amp rectifier in the rectifier slot until it seats into its mating connectors. Using the flat head screwdriver, turn the locking screw counter-clockwise until latch is in the fully locked position as shown in figure 2-8, Example B. This ensures that the locking mechanism catches against the enclosure frame.

3. Check your work before applying AC voltage to the system. Make certain all connections are tight and correct.

4. Turn on the AC power circuit breaker to the rectifier and measure the primary AC input volt-age. AC input voltage should be 176 to 264 VAC, ≤ 24 Amps AC (when the rectifier is on). If the AC input voltage is above or below the limits, call and consult an electrician before you turn on your amplifier system.

5. Measure the rectifier primary DC output voltage for +27 VDC ±1.0 VDC. If the DC output voltage is above or below the limits, contact Powerwave for assistance.

Figure 2-9 148-Amp Rectifier (930-00018-005) Latching Example

Latch in Locked Position

Latch in Down Position

Example A

Example B

Line up latch in slot, then con-tinue turning CCW with screwdriver until tight.

Slot

Page 33: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-13 June 2004

2-6.9 Amplifier Installation 1. Turn off AC power to the enclosure.

2. Inspect the 21-pin D-Sub male combo connector on the rear of the amplifier before installing it in the enclosure. Verify that all pins are straight, no pins are recessed, and that the align-ment shield is not bent.

Caution Do not slam the amplifier into the enclosure. Forcing the amplifier into the en-closure at too fast a rate may cause the pins on the 21-pin D-sub connector of the amplifier to become recessed or broken.

3. After verifying that the front panel power RF OFF/ON/RESET switch is in the OFF position, gently install the plug-in amplifier module in the enclosure. Tighten top and bottom thumb-screws.

4. Refer to section 3 of this manual for initial turn-on and checkout procedures.

5. Do not install weatherproofing materials to the cables until after the power setting procedure is completed.

2-6.10 Air flow Panels When removing or switching enclosure system components, ensure that the air flow panels shown in figure 1-8 and 1-9 are replaced or reinstalled in the empty spaces to maintain the proper cooling air flow for optimum system performance.

2-6.11 DC Power Connections for OS-1900-SA(X) Three-Sector System Two examples of DC interconnections for a three-sector OS-1900-SA(X) system are shown in figure 2-9. Each example uses a different rectifier with the ¼ inch diameter +27 VDC and DC RETURN studs in different locations. It is recommended that a ¾ inch conduit be installed be-tween enclosures and #6 AWG cable be used for the DC connections between enclosures. Each connection must be secured using the appropriate terminal lug and existing hardware. Also refer to figures 2-6 and 2-7 for location of the rectifier connections. When using two rectifiers in the same enclosure, the AC cable should be protected with a 50-Amp AC minimum circuit breaker.

Caution The two rectifiers must be installed in the same enclosure that con-tains the two amplifiers (two sectors). Failure to do this could cause thermal problems resulting in system shutdown.

Page 34: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 2-14 June 2004

Figure 2-10 OS-1900-SA3 Inter-Enclosure DC Wiring Interconnect Example

AC Power

AC Power

¼” Studs All Four Examples

Example Using 930-00018-005 Rectifier

Example Using 930-00016-008 Rectifier

Back of Rectifier

Tray

Back of Rectifier Tray

Access holes sized for ¾” Conduit

Access holes sized for ¾” Conduit

Both rectifiers located in two-amplifier enclo-sure

Page 35: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-1 June 2004

Section 3 Operating Instructions 3-1 Introduction This section contains operating instructions for the Powerwave OS-1900-SA(X) and OS-1900-SB(X) Outdoor Multi-Carrier Power Amplifier (MCPA) Systems.

3-2 Location and Function of Amplifier Module Controls and Indicators

The location and function of the G3S-1900-125 plug-in amplifier module controls and indicators is shown in Figure 3-1 and listed and described in tables 3-1 and 3-2.

Figure 3-1. Amplifier Module Controls and Indicators

Table 3-1 Amplifier Module DC Indicators RF Switch Definitions Name Function

+27 VDC Indicator

Green LED - When lit indicates that the +27 VDC supply is greater than +21 VDC and less than +31 VDC. If the +27 VDC indicator goes out, the DC Fail indicator illuminates. This indicates that the +27 VDC voltage dropped below +21 VDC.

+15 VDC Indicator

Green LED - When lit indicates that the +15 VDC supply is greater than +12 VDC and less than +17 VDC. If the +15 VDC indicator goes out, the DC Fail indicator illuminates. This indicates that the +15 VDC voltage dropped below +12 VDC or increased above +17 VDC.

+5 VDC Indicator

Green LED - When lit indicates that the +5 VDC supply is greater than +2 VDC and less than +7 VDC. If the +5 VDC indicator goes out, the DC Fail indicator illuminates. This indicates that the +5 VDC volt-age dropped below +2 VDC or increased above +7 VDC.

-5 VDC Indicator

Green LED - When lit indicates that the -5 VDC supply is greater than -7 VDC and less than -2 VDC. If the -5 VDC indicator goes out, the DC Fail indicator illuminates. This indicates that the -5 VDC voltage dropped below -7 VDC or increased above -2 VDC.

Continued on next page

Page 36: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-2 June 2004

Name Function

RF ON Switch

Three-position switch: Off (down position) - Turns off amplifier module. On (center position) - Normal amplifier on position. Reset (up position) - When toggled to reset position, all red LED indicators turn on one at a time in se-quence followed by all the green indicators one at a time in sequence; this also resets the fault latches. If the switch is held in the reset position, a microcontroller reset occurs and is verified by the LEDs tog-gling state again. When released, the spring-loaded switch returns to the normal ON position. If a fault occurs and the MCPA is disabled, a reset clears the alarms and enables the MCPA. The functions of the switch are disabled for five seconds after a power-up condition.

Table 3-2 Amplifier Module RF Control and Indicators Definitions

Amplifier Alarm

Latch-ing LED

MCPA Module

System Alarm (From

Subrack)

MCPA Disable signal

Condition Auto-Recovery

Over PWR Fault Yes Red Disable Major High MCPA Module Pout > 52 dBm (Note 1) None

Over PWR Fault No Red Disable Major High Pin > -6 dBm software; -5 dBm hardware

<-12 dBm Soft-ware

High Temperature No Red Enable None Low Base plate

temperature > 80 C <75°C

High Temperature No Red Disable Major High Base plate temperature >

85 C <75°C

VSWR No Red Enable None Low

Reflected and Forward Powers both exceed 40W. Condition exists for less than 1 minute

Reflected or For-ward Power

< 38W

VSWR Yes Red Disable Major High Alarm set after alarm state on for more than 1 minute None

DC Fail No Red Disable Major High Average Internal voltage out of range. (Note 2)

DC Fail (Over Voltage) No Red Disable Major High +27V DC input

> 30.5 V 30.0V

DC Fail (Under Voltage) No Red Disable Major High +27VCD input < 21 V 21.5V

Fan Fail No Red Enable Minor Low Any fan fail (<70 Hz Speed) (>100 Hz Speed)

Loop Fail Yes Red Disable Major High Loop fail detected longer than 2 min None

Low PWR N/A Red Enable None Low Indication shown base on rack RS 485 command. NA

MCPA Module Alarm Definition: Note 1: When Over Power detected at the output:

a) MCPA Module will shut down (Disable). b) Turn on red Over Power lamp. c) Latch Over Power alarm d) The MCPA Module will use a RMS detector to determine the over power fault.

Note 2: The Appropriate Status lamp will turn off, indicating which voltage is out of its range. (10% range for +15V, +5V, and -5V).

Page 37: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-3 June 2004

3-3 Universal Control Module (UCM) Controls and Indicators The location and function of the UCM plug-in module controls and indicators is shown in Figure 3-2 and is described in detail in the paragraphs that follow.

3-3.1 UCM LED Indicators There are eight bi-color LEDs located on the UCM controller (refer to figure 3-4). The indicators display disabled/enabled alarm reporting (configuration switch positions) and specific status of the individual external components. The LED functions and descriptions are listed in table 3-3.

Table 3-3 UCM LED Descriptions Color Blink System LNA0 LNA1 RECT0 RECT1 FAN0 FAN1 FAN2

Off No DC Power

S3-1 Off S3-2 Off S3-3 Off S3-4 Off S2-1 Off S2-2 Off S2-3 Off

Green Normal Enabled Enabled Enabled Enabled Enabled Enabled Enabled

Red Fault

High Cur-rent (+12

VDC above 300

mA)

High Cur-rent (+12

VDC above 300

mA)

Fault Fault Fault Fault Fault

Red 1 Hz

Low Cur-rent (+12 VDC be-low 75 mA)

Low Cur-rent (+12 VDC be-low 75 mA)

3-3.2 Pilot Tone Selection Refer to section 4, paragraph 4-9 for a complete description of the pilot tone function. Set the pilot tone to the nearest frequency outside of the base station’s operating band. Refer to table 3-4 and figure 3-2.

Caution Failure to set the Pilot Tone frequency properly may affect the ampli-fier performance.

Table 3-4 Pilot Tone Switch Configuration Table

Pilot (MHz) Band Pilot 0 Pilot 1 Pilot 2 Pilot 3

1945.5 A OFF OFF OFF OFF

1950.5 D ON ON OFF OFF

1964.5 (default) B OFF OFF ON OFF

1965.5 E ON OFF OFF OFF

1969.5 F ON OFF ON OFF

1970.5 E OFF ON ON OFF

1974.5 C OFF ON OFF OFF

Page 38: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-4 June 2004

3-3.3 Dip Switch Functions The dip switches for the LNA, Fans, and Rectifier cause the UCM to monitor each of these com-ponents for fault alarms when the switch is in the On position (right-most position) See figure 3-2. In addition, the LNA switch controls whether the LNA port voltage is on or off. The LNA port can source either 12 or 15 VDC (factory programmed) and 150 mA of current. Note that third-party LNAs may be installed in the system, and are not monitored or controlled by the UCM.

For this system, Fan0 and Fan1 switches are set to Off.

The Bypass switch allows manual bypass of the MCPA when the switch is in the right-most posi-tion. When the switch is in the left-most position (Off), the UCM controls operational mode of the MCPA bypass relays, based on the MCPA’s operational status.

3-3.4 TX Gain Adjust The UCM controls the transmit gain of the system via the voltage variable attenuator in the UIA module. The UIA provides from 45 to 65 dB of attenuation to the applied signals, therefore, pro-viding 20 dB of dynamic range. Transmit gain is at minimum when the front panel potentiometer is fully counter-clockwise.

Figure 3-2. UCM Controls and Indicators

Eight bi-color LEDs

Default switch positions shown

Page 39: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-5 June 2004

3-4 148-Amp Rectifier LED Indicators The 148-Amp rectifier (930-00018-005) LED front panel indicators are shown in figure 3-3. All three indicators are illuminated during normal operation signifying the rectifier is operating within the specified ranges.

Figure 3-3. 148-Amp Rectifier LED Indicators

3-5 Initial Start-Up and Operating Procedures

Note The power amplifier must be warmed up for a minimum of 20 minutes prior to setting power levels. Failure to properly warm the amplifiers may result in inaccurate output power.

The amplifier module has two operating controls consisting of a power ON/OFF circuit breaker and the RF OFF/ON/RESET switch. Both are located on the front face of the module as shown in figure 3-4. Refer to manual 044-05122, G3S-1900-125 Multicarrier PCS Amplifier for a complete description of the amplifier module. Perform the initial start-up as follows:

1. Verify that all input and output cables are properly connected.

Caution Before applying power, ensure that the system input and output is properly terminated at 50 ohms. Do not operate the system without a load attached. Refer to appendix A for input power requirements. Ex-cessive input power may damage the amplifier.

Warning Never remove or install coaxial cables on either the input or output port when the power amplifier is turned on. Operating the power amplifier while discon-necting and connecting RF cables may damage the equipment and/or cause personal injury.

2. Verify that the amplifier front panel ON-OFF circuit breaker is in the OFF position and the RF

OFF/ON/RESET switch is in the OFF (down) position.

3. If the 125-Amp rectifier, P/N 930 00016-008, shown in figure 3-5 is used, turn on the rectifier by pressing the power button to the ON position. The 148-Amp rectifier, P/N 930-00018-005, is turned on when the OS-1900-SA(X)/SB(X) AC power switched is switched to On.

Amber Green

Green

Page 40: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-6 June 2004

Figure 3-4. Amplifier Front Panel

4. Set the UCM TX Gain Adjust to minimum gain (fully counter-clockwise).

5. Set the Pilot Tone frequency (see table 3-4).

6. Set the UCM dip switches to their operating positions. See figure 3-2 for default configura-tion.

7. Set the amplifier front panel ON-OFF circuit breaker to the ON position. Visually check the indicators on the amplifier module and verify that the following are on:

A. LPA DISAB indicator (red).

B. +27 VDC, +15 VDC, +5 VDC and -5 VDC indicators (green).

8. Set the amplifier front panel RF OFF/ON/RESET switch to the ON (center) position. All red LEDs should turn off after six seconds.

9. Refer to appendix B for the power setting instructions.

10. Turn on external exciter/transceiver and apply RF input signals.

Figure 3-5. 125-Amp Rectifier Power On/Off Switch Location

RF OFF/ON/RESET Switch ON–OFF

Circuit Breaker

On/Off Switch

Page 41: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-7 June 2004

3-5.1 Bypass Operation Check Action:

With the system in normal operation, set each amplifier RF OFF/ON/RESET switch, shown in fig-ure 3-4, to OFF.

Indication:

The universal control module (UCM) SYSTEM LED, shown in figure 3-7, goes from green to red indicating the system is in bypass mode.

When the system is in bypass mode, as shown in figure 3-6, the power level from BTS TX1/RX1 to ANT TX/RX1, BTS TX2/RX2 to ANT RX2 (figure 3-8 SAX model), and BTS TX3/RX3 to ANT RX3 (figure 3-9 SBX model) drops approximately 0.5 dB.

Univ. Input Atten.(UIA)

RX1

TX1MCPAPower: 125WGain: 60dB

ANT TX1/RX1

TX2

RX2

ANTRX2

RX1 IN

TX

TX/RX1

-40 dBTX

Coupler

LA ANTTX/RX1

IntegratedFilter Assy

Atten: -45 to -65 dB

TX Gain From UCM0-15V From UCM

MCPA Control, Alarm

+27VDC

1

2

3

4

5

67

8

By-PassAssembly

Switch Control-Bypass/Combiner

+51.72dBm (148.6W)Composite Max

FAN

+24V From UCM

Sense

Splitter

RX2 IN

ANTRX2

By-PassAssembly

LA

Switch Control-Bypass/Combiner

Universal Controller Module (UCM) +27V Rectifier

Form CAlarm

RS-232

TX G

ain

Adj

ust

0-1

5V

Alarm

MC

PA A

larm

s

+27VDC

VDC

LN

A #

1

Switc

h C

ontr

ol 1

-Byp

ass/

Com

bine

r

Switc

h C

ontr

ol 2

-Byp

ass/

Com

bine

r

Switc

h C

ontr

ol 3

Spar

e by

pass

Fan

Con

trol

1, 2

, 3

Fan

Sens

e 1,

2, 3

Volta

ge m

onito

r

+27V Rectifier

+27V

DC

220VAC

OutputLoad Sharing

/Battery Backup

Load Sharing

Battery Management

Sense AGro

und

Sense B

Battery Management Sensor

RX

Gai

n A

djus

t #1

UCM Junction Block

VDC

LN

A #

2

RX

Gai

n A

djus

t #2

VDC

Inpu

t

UCM Ctrl Signals - Sector1

B-T

B-T

03-0220B-B

+47.51dBm (56.37W) 2Composite Signals

IntegratedDuplexer

External DC Source

By-PassAssembly

ANTRX3

LAB-T

50ohmsIntegratedDuplexer

RX3

TX3

ANTRX3

RX2 Out

2:1

BTS TX1/RX1

BTS TX2/RX2

BTS TX3/RX3

Figure 3-6. Bypass Path Mode

Page 42: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-8 June 2004

Figure 3-7. Universal Control Module

System LED goes to red

Page 43: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-9 June 2004

+

Figure 3-8. OS-1900-SA(X) Interface Panel

Figure 3-9. OS-1900-SB(X) Interface Panel

Page 44: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 3-10 June 2004

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Page 45: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-1 June 2004

Section 4 Principles of Operation 4-1 Introduction This section contains a functional description of the Powerwave OS-1900-SA(X)/SB(X) In-door/Outdoor Multi-Carrier Power Amplifier (MCPA) System. Refer to figures 4-1, 4-2, and 4-3 for the system and amplifier module block diagrams.

A complete OS-1900-SA(X)/SB(X) system consists of a one, two, or three-sector configuration that includes up to three G3S-1900-125 MCPA, 125-Watt amplifiers and up to two 125-Amp or 148-Amp, 220 VAC AC to +27 VDC rectifiers, and one or two indoor/outdoor enclosures.

RF Input is from the BTS to the BDA Tx and Rx ports. Transmit is separated from receive, then all transmit signals are combined, amplified, duplexed, then transmit and receive are combined and provided to the antenna port.

The control assembly monitors the MCPA, TMA, and rectifier, and reports alarms via the Form-C interface.

The interface point for the RF IN, RF OUT, AC input power and monitor (I/O) cables are located at the enclosure bottom rear. The amplifier module is provided with a separate DC input line via an internal wiring harness. The rectifier requires a 30 Amp AC breaker (minimum), even though the rectifier is expected to draw 17 Amps AC nominal during normal operation with two 125-Watt amplifiers.

4-2 RF Input Signal One to 10 CDMA carriers compliant with ANSI-J-STD-019. The maximum input power for all car-rier frequencies should not exceed the limits specified in appendix A. The input VSWR should be 2:1 maximum (or better).

4-3 RF Output Load The load impedance should be as good as possible (1.5:1 or better) in the working band for good power transfer to the load. If the amplifier is operated into a filter, it will maintain its distortion characteristics outside the signal band even if the VSWR is infinite, provided the reflected power does not exceed one watt. A parasitic signal of less than one-watt incident on the output will not cause distortion at a higher level than the normal forward distortion (i.e. -63 dBc).

4-4 System Functional Description The G3S-1900-125 amplifier is a linear, feedforward power amplifier that operates in the 60 MHz frequency band from 1930 MHz to 1990 MHz. It is designed to operate in two continuous fre-quency blocks in the PCS band or an instantaneous bandwidth of 20 MHz. A typical one-sector system is shown in figure 4-1 and 4-2. The power output specification is listed in appendix A. Each amplifier is a self-contained plug-in module and is functionally independent of the other am-plifier module. The amplifier modules are designed for parallel operation to achieve high peak power output, and for redundancy in unmanned remote locations. Each amplifier in the system can simultaneously transmit multiple carrier frequencies at 90 watts per sector

Each amplifier output is an amplified composite signal of approximately 125 watts before losses. All phase and gain corrections are performed on the signal(s) in the individual amplifier modules. Each amplifier module has alarm and display LEDs that display the amplifier performance. If a failure or fault occurs in an amplifier module, it is displayed on the individual amplifier front panel.

Page 46: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-2 June 2004

Universal Input Attenuator(UIA)

IntegratedDuplexer

RX1

TX1Input Duplexer#1 MCPA

Power: 125WGain: 60dB

TX1/RX1

TX2

RX2

Input Duplexer#2

TX2/RX2

RX

TX

Output Duplexerw/ Coupler

TX/RX

Receive Filter

TX CouplerOutput

LA ANTTX/RX1

TX SAMPLE

BTS

TX1/RX1

Integrated FilterAssembly

-40dBPwr / Port: 45dBmAtten: -45 to -65dB

TX Gain Setting0-15V From UCM

MCPA Control, Alarm

+27VDC

1

2

34

5

67

8

By-PassAssembly

Switch Control-Bypass/Combiner

+5V From UCM

-9.03dBmComposite

+44.3dBm +43.3dBm

+43.3dBm

FAN

+24V From UCMSense

Splitter

BTSTX2/RX2

+44.3dBm

RXRX

ANTRX2

By-PassAssembly

LASwitch Control

-Bypass/Combiner

+27V Rectifier

IntegratedDuplexer

RX3

TX3Input Duplexer#3

TX3/RX3

TX4

RX4

Input Duplexer#4

TX4/RX4

LA ANTRX3

BTS

By-PassAssembly

Switch Control-Bypass/Combiner

+44.3dBm

BTSTX4/RX4

TX3/RX3

+44.3dBm

ANTRX4

By-PassAssembly

LASwitch Control

-Bypass/Combiner

Universal Controller Module (UCM)

Alarm

Form C Alarm

+27VDC+27V Rectifier

+27V

DC

110VAC / 220VAC

OUTPUT LOADSHARING/BATTERY BACKUP

LOAD SHARINGBATTERY MANAGEMENT

Sense A

Gro

und

Sense B

BATTERY MANAGEMENT SENSOR

RS-232UCM Junction Block

#1 #2 #1 #2

UCM Ctrl Signals - Sector 1

03-0256B-A

BT

BT

BT

BT

Figure 4-1 OS-1900-SA(X) Functional Block Diagram

Univ. Input Atten.(UIA)

RX1

TX1MCPAPower: 125WGain: 60dB

ANT TX1/RX1

TX2

RX2

ANTRX2

RX1 IN

TX

TX/RX1

-40 dBTX

Coupler

LA ANTTX/RX1

IntegratedFilter Assy

Atten: -45 to -65 dB

TX Gain From UCM0-15V From UCM

MCPA Control, Alarm

+27VDC

1

2

3

4

5

67

8

By-PassAssembly

Switch Control-Bypass/Combiner

FAN

+24V From UCM

Sense

Splitter

RX2 IN

ANTRX2

By-PassAssembly

LA

Switch Control-Bypass/Combiner

Universal Controller Module (UCM) +27V Rectifier

Form CAlarm

RS-232

TX G

ain

Adj

ust

0-1

5V

Alarm

MC

PA

Ala

rms

+27VDC

VDC

LN

A #

1

Sw

itch

Con

trol 1

-Byp

ass/

Com

bine

r

Sw

itch

Con

trol 2

-Byp

ass/

Com

bine

r

Sw

itch

Con

trol 3

Spa

re b

ypas

s

Fan

Con

trol 1

, 2, 3

Fan

Sen

se 1

, 2, 3

Volta

ge m

onito

r

+27V Rectifier

+27V

DC

220VAC

Output Load Sharing/Battery Backup

Load Sharing

Battery Management

Sense AGro

und

Sense B

Battery Management Sensor

RX

Gai

n A

djus

t #1

UCM Junction Block

VDC

LN

A #

2

RX

Gai

n A

djus

t #2

VD

C In

put

UCM Ctrl Signals - Sector1

B-T

B-T

03-0220B-B

IntegratedDuplexer

External DC Source

By-PassAssembly

ANTRX3LA

B-T

50ohmsIntegratedDuplexer

RX3

TX3

ANTRX3

RX2 Out

2:1

BTS TX1/RX1

BTS TX2/RX2

BTS TX3/RX3

Figure 4-2 OS-1900-SB(X) Functional Block Diagram

Page 47: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-3 June 2004

4-5 G3S-1900-125 Amplifier Module The amplifier module, figure 4-3, has an average output of 125 watts power (1250 watts peak power) with intermodulation products suppressed to better than -63 dBc below carrier levels. The amplifier provides an amplified output signal with constant gain and phase by adding approxi-mately 25 dB of distortion cancellation on the output signal. Continuously comparing active paths with passive references, and correcting for small variations through the RF feedback controls maintain constant gain and phase. All gain and phase variations, for example those due to tem-perature, are reduced to the passive reference variations. The amplifier module is comprised of:

• Preamplifiers: Two feedforward loops with phase-shift and gain controls

• Main amplifier: DC/DC power regulator

• Error amplifier: Alarm monitoring, control, and display panel

The main amplifier employs class AB amplification for maximum efficiency. The error amplifier and feed forward loops correct signal nonlinearities introduced by the class AB main amplifier. The error amplifier also operates in class AB mode. The RF input signals are amplified by a pre-amp and coupled to an attenuator and phase shifter in the first feedforward loop. The main signal is phase shifted by 180 degrees and amplified in the premain amplifier. The output from the pre-main amplifier is fed to the class AB main amplifier. The output from the main amplifier is typically 180 watts. The signal is output to several couplers and a delay line.

Figure 4-3 G3S-1900-125 Power Amplifier Module Functional Block Diagram

The signal output from the main amplifier is sampled using a coupler, and the sample signal is combined with the main input signal and input to the second feedforward loop. The error signal is attenuated, phase shifted 180 degrees, then fed to the error amplifier where it is amplified to a level identical to the sampled output from the main amplifier. The output from the error amplifier is then coupled back and added to the output from the main amplifier. The control loops continu-ously make adjustments to cancel out any distortion in the final output signals.

The 2nd loop control section obtains a sample of the distortion added to the output signals by the main amplifiers, phase shifts the signals by 180 degrees, then feeds it to the error amplifier. There it is amplified to the same power level as the input sample and coupled onto the main out-put signal. The final output is monitored by the 2nd loop and adjusted to ensure that the signal distortion and IMD on the final output is canceled out.

Page 48: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-4 June 2004

4-5.1 Main Amplifier The input and output of the main amplifier employs two-stage, class AB amplifiers, to provide ap-proximately 25 dB of gain in the 60 MHz frequency band from 1930 to 1990 MHz. The amplifier operates on +27 VDC, and is mounted directly on a heat sink, which is temperature monitored by a thermal sensor. If the heat sink temperature exceeds 85°C, a high temperature fault occurs. The alarm logic that controls the transistor bias voltage, shuts down the amplifier.

4-5.2 Error Amplifier The main function of the error amplifier is to sample and amplify the signal distortion level gener-ated by the main amplifier, to a level that cancels out the distortion and IMD when the error signal is coupled into the main signal at the amplifier output. The error amplifier is a balanced multistage class AB amplifier with 75 dB of gain to produce over 100-watts peak output. The amplifier oper-ates on +27 VDC and is mounted directly on a heat sink.

4-5.3 Amplifier Monitoring

In the main and error amplifier modules, all normal variations are automatically compensated for by the feed forward loop control. However, when large variations occur beyond the adjustment range of the loop control, a loop fault occurs. The alarms are displayed on the front panel indicators and output via the 21-pin connector located on the rear of the module to the subrack summary board for subsequent remote monitoring via the ALARMS connector. Refer to section 2 for a description of the ALARMS connector.

4-5.4 Amplifier Module Cooling Each amplifier module contains its own heat sink and heat is drawn out of the amplifier by cooler air flowing over the heat sink fins. Four fans provide forced air cooling and redundancy. The fans, which are field replaceable, are located on the front and rear of the amplifier module. Cooling air is drawn in through the front of the amplifier and the hot air is exhausted out the back of the mod-ule.

4-5.5 Power Distribution The OS-1900-SA(X)/SB(X) enclosure uses an AC power source from the BTS. The AC powered enclosure contains either a 125-Amp or 148-Amp rectifier that supplies each amplifier module with a +27 VDC operating voltage. The amplifier module has an internal DC/DC converter that converts the +27 VDC to +15 VDC, +5 VDC and -5 VDC for use by other functions within the module.

4-5.6 Intermodulation The G3S-1900-125 amplifier is designed to deliver a 125-watt composite average power, multi-carrier signal, occupying a bandwidth less than or equal to 25 MHz, in the bandwidth from 1930 to 1990 MHz. The maximum average power for linear operation, and thus the amplifier efficiency, depends on the type of signal amplified.

4-5.7 Two-Tone Intermodulation When measured with two equal CW tones spaced from 30 kHz to 20 MHz apart, and at any power level up to the average power, the 3rd order intermodulation products are below -63 dBc.

Page 49: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-5 June 2004

4-5.8 Multitone Intermodulation Adding more tones to the signal lowers individual intermodulation products. If the frequencies are not equally spaced, the level of intermodulation products gets very low. When the frequencies are equally spaced, those products fall on top of each other on the same frequency grid. The average power of all intermodulation beats falling on the same frequency is called the composite inter-modulation; it is -63 dBc or better.

4-5.9 Amplifier Monitoring In the main and error amplifier modules, all normal variations are automatically compensated for by the feedforward loop control. However, when large variations occur beyond the adjustment range of the loop control, a loop fault occurs. The alarms are displayed on the front panel indica-tors and output via the 21-pin connector located on the rear of the module to the subrack sum-mary board for subsequent remote monitoring.

Table 4-1 G3S-1900-125 Interface Connector Pinouts Pin No. Function Description

A1 RF Input Coaxial Contact A2 Power Input +27 VDC (Power Contact) A3 Ground Ground (Power Contact) A4 RF Output Coaxial Contact 1 Ground Ground 2 RS 485 +RxD Serial Communication Data In 3 RS 485 −RxD Serial Communication Data In 4 RS 485 +TxD Serial Communication Data Out 5 RS 485 −TxD Serial Communication Data Out 6 Address R3 Rack Address R3; Ground for high, float for low 7 Address R2 Rack Address R2; Ground for high, float for low 8 Fan Fail TTL signal normally low. A high level indicates that one or both of the fans

have failed. 9 Forward Power

Monitor An analog DC signal representing the RF output power of the MCPA. The voltage is 4 volts ± 100 mV at the maximum rated output power.

10 Address R0 Rack Address R0; Ground for high, float for low 11 Average Power

Input An analog DC voltage representing the average detected power of the MCPA in a subrack. This voltage is derived by dividing the sum of all the forward power voltages in a subrack by the number of enabled MCPAs. This voltage is used by the MCPA to determine a low power fault.

12 Address A0 Amp Address A0; Ground for high, float for low 13 Summary Fault TTL signal normally low. A high level indicates that the MCPA has been

disabled by a recurring alarm fault. 14 Address A1 Amp Address A1; Ground for high, float for low 15 Module Detect Ground potential. Informs the subrack that an MCPA is plugged in. 16 Bias Input TTL signal normally low for an enabled MCPA. A high level will disable

the MCPA. 17 FP Disable

Output TTL signal, low if the front panel switch is in the ON position. A high level indicates the front panel switch in the OFF position.

Note Address R1 is internally tied high.

Page 50: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-6 June 2004

A1 A2 A3 A4

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 Figure 4-4 G3S-1900-125 Interface Connector

4-5.10 Pilot Tone Control For the OS-1900-SA(X)/SB(X) system G3S-1900-125 MCPAs, the pilot tone is preset at the fac-tory to 1964.5 MHz. The pilot tone frequency selection is based on the intended operational band of the amplifiers as listed in table 4-2.

Table 4-2 Pilot Frequency Setting Based on PCS Frequency Block of Operation Block Designator Transmit Frequency Band (MHz) Base Station Bandwidth Pilot (MHz) A 1930-1945 15 1945.5 (A) D 1945-1950 5 1950.5 (D) B 1950-1965 15 1965.5 (B) E 1965-1970 5 1964.5 (E) (default) 5 1965-1970 5 1970.5 (5) F 1970-1975 5 1969.5 (F) C 1975-1990 15 1974.5 (C) Block Pairs A-D 1930-1950 20 1950.5 (D) D-B 1945-1965 20 1965.5 (B) B-E 1950-1970 20 1970.5 (5) E-F 1965-1975 10 1964.5 (E) F-C 1970-1990 20 1969.5 (F) E-C Excluding F 1965-1990 Excluding: 1970-1975 25 1974.5 (C)

(1) If the Block Designator has not been previously selected through serial communication, pilot defaults to 1964.5 on the G3S-1900-125 amplifier.

(2) If the Block Designator is selected through serial interface, pilot frequency is moved to the appropriate spot and is stored permanently into the microprocessor until another band is changed.

(3) “5” Pilot Frequency requires firmware update from rev. 3.C and greater.

If the pilot tone is not moved and signals are transmitted in B-band, some traffic channels may transmit directly on the pilot tone. The pilot tone requires a guard band of 60 KHz for TDMA, 270 KHz for CDMA (IS-95), and 400 KHz for GSM. Transmitting on the pilot tone causes the amplifier to go into Loop Fail. This will not damage the MCPA. However, CDMA customers will experience a Loop Fail in every sector where the amplifiers are installed. TDMA and GSM customers will ex-perience intermittent Loop Fails in the sectors that use these frequencies.

On the other hand, if the pilot tone is not moved and signals are transmitted in A-band (1930-1945) or C-band (1975-1990), the instantaneous bandwidth of the amplifier will be exceeded. This will cause equipment operated in the outer bands of the PCS band to experience higher in-termodulation distortion, which may in turn cause them to exceed FCC emission limits. The lower end of the PCS band presents the farthest frequency span from the default pilot tone, which be-gins at 1930 MHz, 34.5 MHz away from the pilot tone of the G3S-1900-125 amplifier. The ampli-fier may be operated in bandwidths wider than 20 MHz and still meet FCC rules, however the amplifier specifications are based on a 20 MHz bandwidth nearest the pilot tone.

Refer to section 3-3.2 for actual Pilot frequency selection. The pilot frequency is set from the UCM, which also stores this setting in memory. If an amplifier fails, the UCM programs the pilot frequency of the replacement amplifier to that of the other installed amplifier.

Page 51: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-7 June 2004

4-5.11 Alarm Interface The amplifier has an RS-485 alarm port. The amplifier reports its status as faults occur, to the UCM. The alarm signals are converted to Form-C, then routed from the UCM to an internal ter-minal board mounted on the right side at the rear of the enclosure. The signals are then routed through the I/O port of the to the alarm monitor station (refer to section 2).

4-5.12 Plug-In Rectifiers The system currently employees two different rectifiers (930-00016-008 or 930-00018-05) that are not interchangeable because of different subrack designs (refer to table 1-1). The function of the rectifier is to convert the AC voltage input from the BTS to the +27 VDC used by the OS-1900 system. In a one-rectifier system, if a failure occurs and replacement is required, the system would already be in bypass mode and the rectifier could be removed and replaced with the AC power still applied to the system. In a two-rectifier system, a failure of one rectifier would not place the system into bypass mode and the failed rectifier could be hot swapped with a new unit.

Page 52: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 4-8 June 2004

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Page 53: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 5-1 June 2004

Section 5 Maintenance 5-1 Introduction This section contains periodic maintenance and performance test procedures for the Powerwave OS-1900-SA(X)/SB(X) Indoor/Outdoor Multi-Carrier Power Amplifier (MCPA) System.

Note Check your sales order and equipment warranty before attempting to service or re-pair the OS-1900-SA(X)/SB(X) System. Do not break the seals on equipment under warranty or the warranty will be null and void. Do not return equipment for warranty or repair service until proper shipping instructions are received from the factory.

5-2 Periodic Maintenance Periodic maintenance requirements are listed in table 5-1, as well as the intervals at which the tasks should be performed.

Warning Wear proper eye protection to avoid eye injury when using compressed air.

Table 5-1 Periodic Maintenance

Task Interval Action Cleaning:

Air Vents 180 Days* Inspect and clean per paragraph 5-4 Inspection:

Cables and Connectors

12 Months Inspect signal and power cables for frayed insulation. Check RF connectors to be sure that they are tight.

12 Months Perform annual tests in accordance with individual amplifier manuals.

12 Months Check manual bypass switch for functionality.

Performance Tests

12 Months Antenna VSWR sweep. * Dusty environment may require more frequent cleaning.

5-3 Test Equipment Required for Test Test equipment required to test the amplifier system is listed in the individual manuals. Equivalent test equipment may be substituted for any item, keeping in mind that a thermistor type power me-ter is required.

Note All RF test equipment must be calibrated to 0.05 dB resolution. Any deviation from the nominal attenuation must be accounted for and factored into all output readings.

Page 54: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 5-2 June 2004

5-4 Cleaning Air Inlets/Outlets/Filters The air inlets, outlets, and filter located on inside of the louvered enclosure front cover, should be cleaned every 180 days. If the equipment is operated in a severe dust environment, they should be cleaned more often as necessary.

Turn off DC power source before cleaning fans. If dust and dirt are allowed to accumulate, the cooling efficiency may be diminished. Using either compressed air or a brush with soft bristles, loosen and remove accumulated dust and dirt from the air inlet/outlet panels.

5-5 Performance Test Performance testing should be conducted every 12 months to ensure that the amplifier system meets the operational specifications listed in appendix A. Also verify system performance after any amplifier module is replaced in the field. Test equipment required for performing tests and test setups are listed in the amplifier manual (044-05122).

5-6 Field Replaceable Parts and Modules The following parts and modules can be replaced in the field on site by a qualified technician with experience maintaining RF power amplifiers and similar equipment:

• Power Amplifier Module

• Amplifier Cooling Fans

• Universal Control Module (UCM)

• 125-Amp Rectifier Module

• 148-Amp Rectifier Module

• Duplexer/Universal Input Attenuator (UIA) Tray

• Universal Input Attenuator (UIA) Cooling Fan Assembly

Access panels on the OS-1900-SA(X)/SB(X) enclosure, front, rear, or both as appropriate, must be removed to perform the following maintenance operations.

5-6.1 Power Amplifier Module To replace a power amplifier module, proceed as follows:

1. Set the circuit breaker switch on the front panel of the amplifier module to Off.

2. Loosen the two screws that secure the amplifier module to the amplifier subrack.

Caution When removing the amplifier from the case, it is very important to sup-port the amplifier such that the rear of the module does not suddenly drop when the guide rail disengages from the track. A drop such as this could damage the rear multipin connector. The amplifier weight is approximately 42 lbs.

3. With steady even pressure, use the handle on the front of the amplifier to pull the module out

of the enclosure. When the amplifier is halfway out, press on the release latch to completely remove the amplifier (see figure 1-9).

4. Replace the amplifier module in the reverse order. Ensure that the mounting screws are tightened to seven (7) inch-pounds.

Page 55: PowerWave Cell Extender

OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 5-3 June 2004

5-6.2 Amplifier Cooling Fans To replace a cooling fan, proceed as follows:

1. There is no need to remove the amplifier module from the subrack to replace either fan.

2. Pull out snap fasteners that secure fan to amplifier module. Disconnect fan power connector from amplifier module.

3. Install replacement in reverse order of step 2.

5-6.3 Universal Control Module (UCM) To replace a UCM, proceed as follows:

1. At the main circuit breaker panel, turn off AC power to the OS-1900-SA(X)/SB(X).

2. Remove the UCM from the subrack.

3. Install replacement module in the reverse order.

4. Readjust amplifier gain (refer to paragraph 3.3-5).

5-6.4 125-Amp Rectifier (930-00016-008) To replace the rectifier, proceed as follows:

5-6.4.1 Hot Swap in a Two-Rectifier System In a two-rectifier system, if one rectifier fails (as indicated by an alarm), the system does not go into bypass, and the failed rectifier may be removed from the enclosure and replaced with a good one as follows:

1. Loosen the thumbscrew that secures the rectifier module to the subrack.

Caution When removing the rectifier from the subrack, it is very important to support the rectifier such that the rear of the module does not sud-denly drop when removed from the subrack. A drop such as this could damage the rear multipin connector.

2. With steady even pressure, use the handle on the front of the rectifier to pull the module out

of the subrack.

3. Replace the rectifier module in the reverse order.

4. Press the pushbutton On/Off switch on the front panel of the rectifier module to On.

5. Once the rectifier voltage is in the normal operating range, the alarm will automatically clear.

Note 1. If adding a second rectifier for redundancy, the UCM (RECTx) dipswitch must be set to ON for the additional rectifier to be monitored for alarms. See figure 3-2. 2. If a rectifier is permanently removed from a two-rectifier system, the UCM (RECTx) dip-switch must be set to OFF to clear the corresponding alarm. See figure 3-2.

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 5-4 June 2004

5-6.4.2 Replacement in a One-Rectifier System In a one-rectifier system, if a rectifier fails, the amplifier shuts down and the system goes into by-pass. Replace the rectifier as follows:

1. Set the circuit breaker switch on the front panel of the amplifier module (s) to Off.

2. At the main circuit breaker panel, turn off AC power to the OS-1900-SA(X)/SB(X).

3. Press the pushbutton On/Off switch on the front panel of the rectifier module to Off.

4. Loosen the thumbscrew that secures the rectifier module to the subrack.

Caution When removing the rectifier from the subrack, it is very important to support the rectifier such that the rear of the module does not sud-denly drop when removed from the subrack. A drop such as this could damage the rear multipin connector.

5. With steady even pressure, pull on the module handle to remove the module from the

subrack.

6. Replace the rectifier module in the reverse order.

5-6.5 148-Amp Rectifier (930-00018-005) To replace the rectifier, proceed as follows:

5-6.5.1 Hot Swap in a Two-Rectifier System In a two-rectifier system, if one rectifier fails (as indicated by an alarm), the system does not go into bypass, and the failed rectifier may be removed from the enclosure and replaced with a good one as follows:

1. Loosen the thumbscrew that secures the rectifier module to the subrack.

Caution When removing the rectifier from the subrack, it is very important to support the rectifier such that the rear of the module does not sud-denly drop when removed from the subrack. A drop such as this could damage the rear multipin connector.

2. With steady even pressure, use the handle on the front of the rectifier to pull the module out

of the subrack.

3. Replace the rectifier module in the reverse order.

4. Once the rectifier voltage is in the normal operating range, the alarm will automatically clear.

Note 1. If adding a second rectifier for redundancy, the UCM (RECTx) dipswitch must be set to ON for the additional rectifier to be monitored for alarms. See figure 3-2. 2. If a rectifier is permanently removed from a two-rectifier system, the UCM (RECTx) dip-switch must be set to OFF to clear the corresponding alarm. See figure 3-2.

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 5-5 June 2004

5-6.5.2 Replacement in a One-Rectifier System In a one-rectifier system, if a rectifier fails, the amplifier shuts down and the system goes into by-pass. Replace the rectifier as follows:

1. Set the circuit breaker switch on the front panel of the amplifier module (s) to Off.

2. At the main circuit breaker panel, turn off AC power to the OS-1900-SA(X)/SB(X).

3. Loosen the thumbscrew that secures the rectifier module to the subrack.

Caution When removing the rectifier from the subrack, it is very important to support the rectifier such that the rear of the module does not sud-denly drop when removed from the subrack. A drop such as this could damage the rear multipin connector.

4. With steady even pressure, use the handle on the front of the rectifier to pull the module out of the subrack.

5. Replace the rectifier module in the reverse order.

5-6.6 Duplexer/Universal Input Attenuator (UIA) Tray To replace a duplexer/universal input attenuator tray, proceed as follows:

1. At the main circuit breaker panel, turn off AC power to the OS-1900-SA(X)/SB(X).

2. Remove the rear panel.

Caution The hard-line coaxial cables between the rear panel and the UIA are easily damaged. Care must be taken to avoid bending or forcing ca-bles / connectors. Inspect connector solder points for cracks after connectors are reinstalled at the completion of this procedure.

3. Disconnect all RF input and output connections on the inside of the rear panel.

4. Disconnect the fan’s Molex connector.

5. Slide the duplexer/UIA drawer out.

6. Install replacement module in the reverse order.

5-6.7 Universal Input Attenuator (UIA) Cooling Fan Assembly To replace a UIA fan assembly, proceed as follows:

1. At the main circuit breaker panel, turn off AC power to the OS-1900-SA(X)/SB(X).

2. Refer to figure 1-8. Pull out on the fastener/plungers securing the fan assembly.

3. Pull the fan out of the enclosure, disconnect the power connector, and completely remove the fan assembly.

4. Install the replacement fan in reverse order of removal.

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 6-1 June 2004

Section 6 Troubleshooting 6-1 Introduction This section contains problems based on the G3S-1900-125 front panel indicators and a few sug-gested actions that may correct these problems should they occur. If the suggested corrective action does not eliminate the problem, please contact your Powerwave field representative or the factory for further instructions.

Note Check your sales order and equipment warranty before attempting to service or re-pair the unit. Do not break the seals on equipment under warranty or the warranty will be null and void. Do not return equipment for warranty or repair service until proper shipping instructions are received from the factory.

6-2 Troubleshooting The OFF/ON/RESET switch can clear many alarm faults. It is located on the front panel of the faulted amplifier module. An attempt to reset the fault should be your first course of action. 24 Hour technical support service is available at our main phone number 888-797-9283 or 714-466-1000; select the "System Operator Technical Support" option to receive assistance from Power-wave's Applications Support Group.

The following are general guidelines established to aid Field Engineers or Cell Site Technicians in the proper method of Powerwave equipment fault resolution by fault mode.

6-2.1 DC Voltage Indicators Not Illuminated 1. Check the front panel ON/OFF switch.

2. Check the power plant circuit breaker.

3. Check for +27 + 1.0 VDC at the amplifier subrack input.

A. If the voltage is low, verify that all DC connections between the power plant and the amplifier subrack are tight.

B. If the voltage is correct,

(1). Remove the amplifier from the subrack slot and move the amplifier to another am-plifier subrack slot.

(2). Check the voltage on the power pins of the mating amplifier and amplifier subrack connector. Verify that the amplifier DC connections are not damaged (see figure 6-1 and table 6-1).

(3). If voltages are correct and connections are secure, return the amplifier to the fac-tory for repair.

Figure 6-1 DC and Logic Connector (Male, on Rear of G3S-1900-125 Amplifier Module)

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 6-2 June 2004

Table 6-1 Amplifier Module DC and Logic Connector Definition PIN Function Description A1 Power Input +27 VDC (Power Contact) A2 Power Input +27 VDC (Power Contact) A3 Ground Ground (Power Contact) A4 Ground Ground (Power Contact)

6-2.2 OVER PWR Illuminated 1. If all the amplifiers in a given amplifier enclosure are in Over Pwr and the LPA Disable LED

is illuminated, then the input RF power level is too high and the amplifiers have been turned off. This could be the result of RF power being incorrectly set during equipment commission-ing or a faulty jumper cable. Verify the amplifier enclosure output cables transmit filter, and directional coupler are in proper working order. The loss between the amplifier enclosure and the hatch plate is typically less than 2.0 dB.

2. If the amplifier is in Over Pwr, then the input RF power level is too high. The amplifier is at-tempting to maintain a safe power output level. This could be the result of RF power being incorrectly set during equipment commissioning or a faulty jumper cable. Verify the amplifier output cables, duplexers, and attenuators are in proper working order.

6-2.3 HIGH TEMP Illuminated 1. If an amplifier is in HIGH TEMP and the LPA Disable LED is illuminated, then the amplifier

heat sink temperature is too high. This may be due to:

A. High ambient temperature.

B. Fan failure.

C. Insufficient air-volume capacity. Most of Powerwave’s amplifiers require a certain amount of free-space to allow proper airflow.

2. Correct the heat problem, then reset the amplifier by momentarily pressing up on the ampli-fier front panel Off/On/Reset switch.

In hot climate environments, shading of the equipment cabinet is recommended to reduce the equipment cabinet’s heat load.

6-2.4 VSWR Illuminated 1. If the amplifier is in VSWR and the LPA Disable LED is illuminated, then the output RF re-

flected power level is too high and the amplifier has been turned off. This may be due to a faulty jumper cable or transmit filter. Verify the amplifier output cables, duplexers, and at-tenuators are in proper working order. This fault normally occurs during site or just following site power setting and normally takes about 10 to 15 minutes to appear. This fault may not occur at low power levels (i.e. when just one or two channels are up).

2. If the amplifier is in VSWR and the LPA Disable LED is illuminated, then the output RF re-flected power level is too high for that amplifier. This may be due to:

A. A damaged or recessed amplifier RF output connector. Return the amplifier to the fac-tory for repair.

B. Mishandling of the amplifier can cause recessed pins. Before installing an amplifier, look at the D-sub connector to ensure none of the pins are recessed, bent, or that the outer connector shield is not damaged. When installing the amplifier, do not force the amplifier into the slot. Gentle even pressure is all that is needed to properly seat the amplifier.

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C. Improper seating of the amplifier.

(1). Ensure the amplifier thumbscrews are properly tightened.

(2). Try seating the amplifier in another slot.

(3). Try seating the amplifier in another sector.

6-2.5 DC FAIL Illuminated If an amplifier is in DC FAIL and the LPA Disable LED is illuminated, then one of the amplifier DC voltages is either out of tolerance or not present. Return the amplifier to the factory for repair.

6-2.6 FAN FAIL Illuminated If an amplifier is in FAN FAIL, then an amplifier’s cooling fans has failed. Replace the fan. In the G3 model amplifiers, fan failure does not cause the amplifier to shut down; this is determined by the heat sink temperature, as previously mentioned.

6-2.7 LOOP FAIL Illuminated LPA Disable LED illuminated always accompanies Loop Fail. This may be due to:

1. Inability of the amplifier to maintain a 180° phase shift between the first and second loops.

2. A damaged error amplifier. This can be caused by:

A. Out of band spurious or intermods being applied at too high of a level at the amplifier input port. An input band-pass filter may be necessary to correct this problem.

B. Disconnecting amplifier RF output cables while the amplifier is still turned on. Always turn the amplifier off when moving output RF cables from the hatch plate to test equip-ment and back again.

3. Operating the Pilot tone within the base stations designated frequency band.

4. Program the UCM for a Pilot tone in a neighboring frequency band. Refer to section 3, para-graph 3-3.2

6-2.8 LOW PWR Illuminated The LPA Disable LED being illuminated always accompanies Low Power. This is due to the gain of either the internal preamplifier or main amplifier being 0.5 dB (typically) or more below the am-plifier specification. The amplifier should be returned to the factory.

6-2.9 LPA DISABLE Illuminated 1. LPA Disable LED illuminated indicates that the amplifier RF section is turned off. This may

be due to:

A. An accompanied alarm indicating a critical amplifier fault (i.e. Loop Fail fault).

B. Improper seating of the amplifier in the enclosure.

2. Ensure the amplifier thumbscrews are properly tightened. Reset the amplifier by momentar-ily pressing up on the amplifier front panel Off/On/Reset switch.

3. Try seating the amplifier in another enclosure slot.

4. Try seating the amplifier in another enclosure, if available.

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved 044-05140 Rev. B 6-4 June 2004

6-3 Return for Service Procedures When returning products to Powerwave, the following procedures will ensure optimum response.

6-3.1 Obtaining an RMA A Return Material Authorization (RMA) number must be obtained prior to returning equipment to the factory for service. Please contact our Repair Department at (888) 797-9283 or (714) 466-1000 to obtain this number, or FAX your request to (714) 466-5816. Failure to obtain this RMA number may result in delays in receiving repair service.

6-3.2 Repackaging for Shipment To ensure safe shipment of the amplifier, it is recommended that the original shipping package designed for the amplifier be reused. If it is not available, contact our Repair Department for packing materials and information.

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05140 Rev. B A-1 June 2004

Appendix A Specifications A-1 OS-1900-SA(X)/SB(X) System Specifications

Table A-1 OS-1900-SA(X)/SB(X) System Specifications Frequency Range 1930-1990 MHz, 25 MHz InstantaneousMaximum Power Output 90 Watts Maximum Gain +12 dB ± 1.5 dB Gain Flatness Across Band ±0.75 dB Maximum IMD Performance See table A-2 below Maximum RF Input Power without damage per port +47 dBm Primary Power:

AC Model 176 to 264 VAC, 47-63 Hz, Single Phase

Current: 125-Amp Rectifier See table A-3 Current: 148-Amp Rectifier See table A-4 Operating Temperature -10 °C to +50 °C Outdoor Enclosure Dimensions 34(H)x16(W)x34(D) inches NEMA Rating 3R Weight with amplifier subrack, one amplifier, and one rec-tifier

Approximately 186 Pounds

Weight with amplifier subrack, two amplifiers, and one rectifier

Approximately 231 lbs (21 lb rectifier) Approximately 221.5 lbs (13.5 lb rectifier)

Weight with amplifier subrack, two amplifiers, and two rectifiers

Approximately 252 lbs with 21 lb rectifiers Approximately 235 lbs with 13.5 lb rectifiers

Weight with amplifier subrack and one amplifier Approximately 165 Pounds (-21 lb rectifier) Approximately 172.5 Pounds (-13.5 lb rectifier)

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05140 Rev. B A-2 June 2004

A-2 Amplifier Model G3S-1900-125

Table A-2 Amplifier Model G3S-1900-125 Specifications Frequency Range 1930-1990 MHz (Refer to table A-5) Total Maximum Input Power -4 dBm Total Output Power 125 Watts typical (1 Module) RF Gain at 1930 MHz 60 dB Gain Flatness: ±0.5 dB @ 27 VDC ±1 VDC Gain Variation Over Temperature: ±0.5 dB from 24 to 30 VDC Output Protection: Mismatch Protected Input Port Return Loss: -14 dB (Max) Output Port Return Loss: -14 dB (Max) Second Harmonics: -13 dBm (Max) Duty Cycle: Continuous DC Input Power:

+27 ±1 VDC, 52 A DC typical. 60 A DC max @ 125 Watts; Operational +21.0 VDC to 30 VDC

Operating Temperature: 0 ºC. to +50 ºC. Storage Temperature: -40 ºC. to +75 ºC. Operating Humidity: 0% - 80% Relative Humidity (No condensing) Storage Humidity: 0% - 95% Relative Humidity (No condensing) RF Input / Output Connector Radial BMA Female Blind Mate Connector Status / Alarm / Control / DC Input Connectors: 21-Pin D-Subminiature Combo Connector Weight 45 lbs. Dimensions: 5.22” High, 16.97” Wide, 20.44” Deep

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05140 Rev. B A-3 June 2004

A-3 125-Amp Rectifier Specifications

Table A-3 125-Amp Rectifier Model 930-00016-008 Specifications Input Voltage 176 / 264 VAC, 47 / 63 Hz, Single phase Input Current 24 A AC@ 176 VAC

20 A AC @ 208 VAC 18 A AC @ 240 VAC

Power Factor 0.98 typical Harmonic Distortion <5% total @ full load; <3% @ each harmonic Efficiency 82% typical Hold-Up Time 15 ms, minimum at any input voltage within the operating range Under voltage No damage will occur when operating below the minimum input voltage

Input transients Meets IEEE-587-1980 Output Voltage +23.0 to +28.0 VDC (set to +27.0 for Powerwave) Output Current 125 A DC maximum Output Power 1350 Watts @ 220 VAC Ripple & Noise < 200 mV P-P measured with 20 MHz bandwidth Line Regulation <+0.25% Load Regulation <+0.5% from 10% to full load; +2% from no load to 10% load Turn On Delay 2 seconds maximum Turn On Overshoot 5% maximum Parallel Interface May be connected to similar rectifiers for increased current output Hot Swap Isolation diode allows Hot Swap of failed units without disturbing load Over Voltage Protection Shutdown occurs @ 30 VDC Over Current Protection 125 +6 A DC, short circuit protected Over Temperature Protection Shut down @ 70 ºC ambient; Thermostat controlled with auto recovery Operating Temperature 0 to 50 ºC Storage Temperature -30 to +85 ºC Humidity 0 to 95% non-condensing EMI Radiated and conducted noise meets FCC Part 15, Subpart J, Class A, and

VDE0871, Class A Safety Meets UL1950, IEC950, and CSA 22.2 #234 MTBF 100,000 Weight 21 pounds

Specifications as provided by Telecommunications Power Systems, Document Number 701396-15, Revision A, May 7, 1997

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05140 Rev. B A-4 June 2004

A-4 148-Amp Rectifier Specifications

Table A-4 148-Amp Rectifier Model 930-00018-005 Specifications Input Voltage 180 / 264 VAC, 47 / 63 Hz, Single phase Input Current 25.5 A AC @ full load @180 VAC Power Factor 0.99 typical Inrush Current 50 A AC maximum Harmonic Distortion <5% total @ full load; <3% @ each harmonic Efficiency 89% typical @ 230 VAC Hold-Up Time >20 ms @ low line Output Voltage Range +20.0 to +29.0 VDC (set to +27.0 for Powerwave)

Line Regulation 0.5% using remote sense (5% on standby voltage) Load Regulation 0.5% using remote sense (5% on standby voltage) Output Ripple & Noise < 1% P-P Transient Response 3 % max deviation. 0.50 ms recovery time for a 25% load change Start-Up Time 2 Seconds Hold-Up time >20 ms @ low line Overshoot/Undershoot 1% at turn on/off Temperature Coefficient 0.02% per ºC Remote On/Off Logic 1(TTL high) or open enables unit (on), Logic 0 (TTL low) or short shuts

unit down (Off) Power Fail Signal Signal goes low (TTL low) 2 ms before loss of output regulation Current Limit Protection 110-140% V1, 5VSB <2.5 amps automatic recovery Over Voltage Protection 29.5 to 30.5 V. Reset by cycling input power Over Temperature Protection Automatic shutdown with auto recovery. Thermal shutdown point @ 95 ºC MTBF 300,000 hours per Belcore standard Output Power Good TTL high = power good, TTL low = output out of limits LED Indicators DC good = green LED; temperature OK = green LED; AC good = amber

LED Operating Temperature 0 to 50 ºC @ rated output power. Supply derates linearly from 50 ºC to 65

ºC @ 2.2% per ºC Cooling Self contained ball bearing fan Shock and Vibration Per MIL STD-810F, NEBS compliant to GR 63 Core EMI/EMC Meets EN61000-3-2, -3 CISPR22 and FCC Part 15 Class A, Bellcore

GR1089-Core Safety Approvals Meets UL1950, CSA 22.2 #650, TUV EN60950 and CE Mark Weight 13.5 pounds

Specifications as provided by Cherokee International, Document Number 97MS2101M, Revision A, Aug 1, 2003

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© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05140 Rev. B B-1 June 2004

Appendix B. Power Setting Procedures B-1 Power Setting Calculations: 1. Ensure the composite input power to the Powerwave amplifier is < -11 dBm.

2. Determine the required output level at the hatch plate per carrier (Analog, Digital, CDPD, and Setup Channel).

3. Determine the amount of loss between the amplifier output and the hatch plate.

A. Either the calculated value, or

B. Measure the loss:

(1). Key one radio and make a measurement in dBm at the back of the amplifier with a HP EPM-441A or equivalent power meter. Write the value down: _____ dBm.

(2). Unkey the radio and move the power meter to the hatch plate.

(3). Key the same radio and make a measurement in dBm, and write it down: _____ dBm. The difference between the two measurements is the loss.

4. Determine the amount of power output at the rear of the amplifier per carrier.

5. Multiply the number of carriers times the output power level per carrier at the rear of the am-plifier. A blank worksheet is provided on page B4 for you to record your desired power lev-els.

Table B-1 OS-1900-SA(X)/SB(X) Gain Example

Standard Gain Number of Radios 4 51.02059991 126.4911064

OS-1900-SA(X)/SB(X) Single Carrier Power Composite Power

1 MCPA 125W max

System Gain/ Loss dBm Watts System

Gain/ Loss dBm Watts

Radio Input to OS-1900 45 31.62 51.02 126.49 Cable Loss to Bypass -0.25 44.75 29.85 -0.25 50.77 119.42 Bypass Loss -0.2 44.55 28.51 -0.2 50.57 114.04 Cable Loss to Duplexer -0.25 44.3 26.92 -0.25 50.32 107.66 Duplexer Loss -1 43.3 21.38 -1 49.32 85.52 Cable Loss to UIA -0.25 43.05 20.18 -0.25 49.07 80.73 UIA Loss -57.8 -14.75 0.00 -57.8 -8.73 0.00 Cable Loss to MCPA -0.25 -15 0.00 -0.25 -8.98 0.00 MCPA Gain 60 45 31.62 60 51.02 126.49 Cable Loss to Duplexer -0.25 44.75 29.8538 -0.25 50.77 119.42 Duplexer Loss -0.6 44.15 26.0016 -0.6 50.17 104.01 Cable Loss to Bypass -0.25 43.9 24.5471 -0.25 49.92 98.19 Bypass Loss -0.2 43.7 23.4423 -0.2 49.72 93.77 Cable Loss to LA -0.25 43.45 22.1309 -0.25 49.47 88.52 LA Loss -0.1 43.35 21.6272 -0.1 49.37 86.51 Cable Loss to Antenna -1.5 41.85 15.31 -1.5 47.87 61.24 Antenna Gain / ERP 13 54.85 305.49 13 60.87 1221.97 System Gain: OS-1900-SA(X)/SB(X) -1.65 -1.65

If the total output power level at the back of the Powerwave amplifier exceeds the amplifier’s specified capability:

1. Reduce the loss between the rear of the amplifier and the hatch plate, or…

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OS-1900-SA(X)/SB(X) Installation and Service Manual

© Copyright Powerwave Technologies, Inc., June 2004. All rights reserved All specifications are subject to change without notice. Contact the factory for complete performance data.

044-05140 Rev. B B-2 June 2004

2. Reduce the number of input radios until the amplifier power rating is met.

CDMA carriers are normally set with only pilot page and sync signals up. These represent approxi-mately 15% of the overall maximum average channel power. Therefore, Powerwave normally multi-plies CDMA power by a factor of 7 when CDMA power is given under 7 Watts.

B-2 Power Setting Procedure:

Note The amplifiers must be warmed up for a minimum of 20 minutes prior to setting power levels. Failure to properly warm the amplifiers may result in lower output power, once the amplifiers reach operating temperature.

1. Set the UCM TX to minimum gain (fully counter-clockwise; factory default).

2. Ensure all radios are unkeyed.

3. Turn the amplifier off.

4. Connect the power meter with appropriate attenuators as necessary to the duplexer output port of the OS-1900-SA(X)/SB(X).

5. Turn the amplifier on.

6. Set the base station radio output to +45 dBm.

7. Set the OS-1900-SA(X)/SB(X) output power level using the TX gain potentiometer on the UCM. Key the same radio. Monitor the output power at the antenna port of the output du-plexer and according to the calculations made in the first section above. Do not readjust the radio output level unless the gain adjust on the amplifier is set to fully clockwise (maximum gain) and the desired output power is still not attained.

8. Unkey the radio.

9. Key one radio at a time and set the power level of each individual radio at the hatch plate according to the calculations made in the first section above. Do not readjust the gain adjust on the UCM. All subsequent adjustments must be made at the radio.

10. Unkey all radios.

11. Key all the radios and measure the total maximum power. This power level should not ex-ceed the rating for the amplifier. If the power rating for the amplifier is exceeded, the In-ter Modulation Distortion performance of the amplifier suffers.

Note Each amplifier will shut down at 158 W, which will cause the sector to be off the air.

12. Unkey all the radios.

13. Turn the amplifier off.

14. Reconnect the RF output coax cable to the Powerwave amplifier.

15. Install weatherproofing material on OS-1900-SA(X)/SB(X) external connections per the manufacturer’s instructions.

16. Turn the amplifier on.

17. Place the site in service.