Manual Modulo HS-2 Megaplex 2100

HS-22-Channel High Speed Data Module

Megaplex-2100/2104

INSTA

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ND

O

PER

ATIO

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Innovative Access Solutions

HS-2 2-Channel High Speed Data Module

Megaplex-2100/2104

Installation and Operation Manual

Notice

This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No part of this publication may be reproduced in any form whatsoever without prior written approval by RAD Data Communications.

Right, title and interest, all information, copyrights, patents, know-how, trade secrets and other intellectual property or other proprietary rights relating to this manual and to the HS-2 and any software components contained therein are proprietary products of RAD protected under international copyright law and shall be and remain solely with RAD.

HS-2 is a registered trademark of RAD. No right, license, or interest to such trademark is granted hereunder, and you agree that no such right, license, or interest shall be asserted by you with respect to such trademark.

You shall not copy, reverse compile or reverse assemble all or any portion of the Manual or the HS-2. You are prohibited from, and shall not, directly or indirectly, develop, market, distribute, license, or sell any product that supports substantially similar functionality as the HS-2, based on or derived in any way from the HS-2. Your undertaking in this paragraph shall survive the termination of this Agreement.

This Agreement is effective upon your opening of the HS-2 package and shall continue until terminated. RAD may terminate this Agreement upon the breach by you of any term hereof. Upon such termination by RAD, you agree to return to RAD the HS-2 and all copies and portions thereof.

For further information contact RAD at the address below or contact your local distributor.

International Headquarters RAD Data Communications Ltd.

24 Raoul Wallenberg Street Tel Aviv 69719, Israel Tel: 972-3-6458181 Fax: 972-3-6498250, 6474436 E-mail: [email protected]

North America Headquarters RAD Data Communications Inc.

900 Corporate Drive Mahwah, NJ 07430, USA Tel: (201) 5291100, Toll free: 1-800-4447234 Fax: (201) 5295777 E-mail: [email protected]

© 1988–2007 RAD Data Communications Ltd. Publication No. 764-225-09/98

mailto:[email protected]


Table of Contents

HS-2 Installation and Operation Manual i

ContentsCHAPTER 1 – INTRODUCTION

1.1 Functional Description ................................................................................................... 1-1General ................................................................................................................................ 1-1Diagnostics ........................................................................................................................... 1-3

1.2 Technical Specifications ................................................................................................. 1-4

CHAPTER 2 – MODULE INSTALLATION AND OPERATION2.1 General.......................................................................................................................... 2-12.2 Preparation for Installation ............................................................................................. 2-1

Internal Settings .................................................................................................................... 2-2

2.3 Module Installation ........................................................................................................ 2-3Cable Connections................................................................................................................ 2-3

2.4 Module Panels ............................................................................................................... 2-42.5 Configuration Instructions .............................................................................................. 2-5

General ................................................................................................................................ 2-5

CHAPTER 3 – ALARMS & DIAGNOSTICS3.1 General.......................................................................................................................... 3-13.2 Alarm Messages.............................................................................................................. 3-13.3 Diagnostics..................................................................................................................... 3-2

Local Loopback..................................................................................................................... 3-2Remote Loopback................................................................................................................. 3-3Bit Error Rate Testing (BERT).................................................................................................. 3-4Recommended Test Sequence .............................................................................................. 3-4

APPENDIX A – CONNECTION DATAA.1 Channel Interface Signals ............................................................................................... A-1A.2 HS-2 and MTHS-2 Modules Connectors ........................................................................ A-2A.3 Adapter Cables for HS-2 and MTHS-2 Modules ............................................................. A-4

Table of Contents

ii HS-2 Installation and Operation Manual

List of Figures

HS-2 Installation and Operation Manual iii

List of Figures Figure 1-1. Typical MTHS-2 Module Application .......................................................................... 1-3 Figure 2-1. HS-2 Module, Internal Settings ................................................................................... 2-2 Figure 2-2. HS-2 Module Panels ................................................................................................... 2-4 Figure 3-1. Local Loopback, Signal Path........................................................................................ 3-3 Figure 3-2. Remote Loopback, Signal Path.................................................................................... 3-4 Figure A-1. IM-DB25/2 and IMB-DB25/2 Panels.......................................................................... A-2

List of TablesTable 2-1. Selection of Cables ....................................................................................................... 2-3Table 2-2. Channel Parameters...................................................................................................... 2-5Table 3-1. Alarm Messages ............................................................................................................ 3-1Table A-1. Channel Interface Signals.............................................................................................. A-1Table A-2. Pin Allocation in DB25 Connector ................................................................................ A-3Table A-3. Channel Interface Adapter Cable - DCE Clock Mode.................................................... A-4Table A-4. Channel Interface Adapter Cable – External DCE Clock Mode (DTE1) .......................... A-5Table A-5. Channel Interface Adapter Cable - DTE Clock Mode (DTE2)......................................... A-6

09/07/98 12:59 PM Functional Description 1-1

Chapter 1Introduction

1.1 Functional Description

General This manual describes the technical characteristics, applications, installation,and operation of the HS-2 family of multiple channel high speed data I/Omodules for the MEGAPLEX-2100 Modular T1/E1 Multiplexer Systems. TheHS-2 family includes two module versions, designated HS-2 and MTHS-2,which differ in physical size and the number of channels:

• 4U-high modules, designated HS-2, are used in the MEGAPLEX-2100and MEGAPLEX-2104. The user interface connectors (two 25-pin D-typeconnectors) of these modules are located on the module panels.

• 6U-high modules, designated MTHS-2 are used in theMEGAPLEX-2100B and MEGAPLEX-2100F. These modules, which areinteroperable with the corresponding 4U I/O modules, do not includeuser interface connectors: instead, these connectors (two 25-pin D-typeconnectors) are located on interface modules. For the MEGAPLEX-2100F,the interface module is designated IM-DB25/2, IM-TEL50, or IM-S26/4;for the MEGAPLEX-2100B, the interface module is designatedIMB-DB25/2, IMB-TEL50, or IMB-S26/4.

Note In this manual, the generic term HS-2 is used when the information isapplicable to all of the module versions, and the term MEGAPLEX is usedwhen the information is applicable to all of the multiplexer versions. Thecomplete designation is used only for information applicable to a specificversion.

Main Features

The HS-2 modules are data sub-multiplexers which provide two high-speedsynchronous data channels. Each channel can support data rates of n×56 orn×64 kbps, where n can be up to 24 for a T1 main link (maximum channelrate of 1536 kbps) and up to 31 for an E1 (CEPT) main link (maximumchannel rate of 1984 kbps). Channel data rates, as well as all the operatingparameters are controlled by the system management.

The interface type can be independently selected for each channel. Twoselections are available:

Chapter 1 - Introduction HS2 Installation & Operation Manual

1-2 Functional Description 09/07/98 12:59 PM

1. V.35.

2. V.11/RS-422. When using the V.11/RS-422 selection, the channelinterface can be converted by means of adapter cables to V.36/RS-449,RS-530, or X.21 interfaces.

Each channel has local support for the DCD and DSR lines.

• The DSR line is ON when the channel is connected, and switches to OFFif the channel is not connected, or is connected but is engaged in aremote loop or BER test.

• The DCD line is constantly ON, except when communications are notpossible because of loss of frame synchronization.

Timing

Each HS-2 module channel supports three timing modes:

• DCE timing: the HS-2 module channel provides the timing signals to theDTE connected to it.

• External DCE timing: the HS-2 module channel provides the receivetiming signal to the user's DTE, and accepts an external transmit clock.This mode is also called DTE1.

• DTE timing: the HS-2 module channel accepts the timing signals from theuser's equipment, and accepts an external transmit clock. In this case, theHS-2 channel can serve as the timing source for the MEGAPLEX system.This mode is also called DTE2.

A FIFO buffer is used in the transmit path of each module channel, toabsorb timing variations. FIFO size can be individually configured. TheMEGAPLEX system can automatically select the FIFO size in accordancewith the minimum necessary, however when a longer buffer is desired, theuser can also manually select the FIFO size. The supported FIFO sizes are±16 bits, ±30 bits, ±52 bits, and ±72 bits.

Time Slot Routing

The MEGAPLEX system enables the user to select the main link that willcarry the data applied to the HS-2 module channels. Moreover, the user canselect, for each HS-2 module channel, the main link time slots assigned tothat channel in the corresponding T1 or E1 main link frame.

User-controlled manual assignment allows the routing of the bit streamgenerated by each local channel to any other compatible MEGAPLEXchannel at the remote site, e.g., to another channel of a high speed modulesuch as HS-703/MTHS-703, HS-2, HS-3, HS-Q, or HS-4, or to another typeof module, such as the MBE, etc.

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09/07/98 12:59 PM Technical Specifications 1-3

Typical Applications

Figure 1-1 shows a typical HS-2 module application that illustrates the use ofthe MTHS-2 module in a system that integrates remote multiplexing.

MEGAPLEX-2100B/F

HS-2

HS-2

256K

384K

DataNetwork

MEGAPLEX-2100B/F

HS-2

HS-2

64K

512K

KILOMUX-2000

Figure 1-1. Typical MTHS-2 Module Application

Diagnostics The HS-2 module includes self-test upon power-up, and additional testingand diagnostic functions that can be controlled by system management,reduce downtime to a minimum. The testing capabilities include localloopback (where the signal received by the module is looped back toward thelocal equipment), and remote (loopback toward the remote equipment).

Chapter 1 - Introduction HS2 Installation & Operation Manual

1-4 Technical Specifications 09/07/98 12:59 PM

1.2 Technical Specifications

Number of channels Two

Data rates Synchronous n×56 kbps or n×64 kbps data transmission:− for T1 links: n=1 through 24 (data rates of 56 to 1536 kbps)

− for E1 links: n=1 through 31 (data rates of 56 to 1984 kbps)

Channel timing DCE timing: transmit and receive clocks to synchronous DTE

External DCE (DTE1): transmit clock from the synchronous device andreceive clock to synchronous device

DTE timing (DTE2): transmit and receive clocks from synchronous DCE

Electrical interfacetypes

Selectable, V.35 or V.11/RS-422

Connectors MTHS-2: Two 25-pin D-type connectors (on IM-DB25/2 or IMB-DB25/2interface module)

HS-2: Two 25-pin D-type connectors on module panel

Supportedmechanical interfaces

V.35, V.36/RS-449, RS-530 or X.21

Control signals

RTS, CTS CTS follows RTS or is constantly ON, software selectable

DCD DCD constantly ON, except during loss of frame synchronization (red alarmfor T1 systems)

DSR DSR is OFF when the channel is not connected, or is connected but isengaged in a remote loop or BER test

DSR is ON when the channel is connected

Diagnostics Local and remote loopbacks

Configuration Programmable via system management

09/07/98 1:00 PM Preparation for Installation 2-1

Chapter 2Module Installationand Operation

2.1 General

This chapter provides installation, configuration, and operation instructionsfor the HS-2 and MTHS-2 modules. The information presented in thischapter supplements the general installation, configuration and operationinstructions for the MEGAPLEX-2100 systems, contained in Part I of theMEGAPLEX-2100 Installation and Operation manual.

Warning

Before performing any internal settings, adjustment, maintenance, or repairs,first disconnect all the cables from the module, and then remove the modulefrom the MEGAPLEX enclosure.No internal settings, adjustment, maintenance, and repairs should beperformed by either the operator or the user; such activities may beperformed only by a skilled technician who is aware of the hazards involved.Always observe standard safety precautions during installation, operation,and maintenance of this product.

Caution The HS-2 modules contain components sensitive to electrostatic discharge(ESD). To prevent ESD damage, always hold the module by its sides, and donot touch the module components or connectors.

2.2 Preparation for Installation

The operating mode of the HS-2 modules is controlled by software. Inaddition, there are several jumpers or switches that select hardwareoperating conditions, and these may have to be set before installing amodule in the MEGAPLEX enclosure.

If the factory (default) settings meet your specific requirements, you mayskip this Section and proceed with the installation of the module in theequipment enclosure, as explained in Section 2.3. To change the factorysettings, proceed as explained below.

Chapter 2 - Operation HS-2 Installation & Operation Manual

2-2 Module Installation 09/07/98 1:00 PM

Internal Settingson HS Modules

Each HS-2 module has two small plug-in daughter boards called interfacechanger boards – one for each channel. The function of the changer boardsis to select the channel interface type: each interface changer board isinserted in the position corresponding to the desired interface type. All theother module functions are programmable by means of the systemmanagement.

Figure 2-1 identifies the positions of the interface changer boards for atypical module (HS-2), and the setting required for each interface type. Theinterface changer boards located on the MTHS-2 modules are similarlymarked.

J4

J5

J6

J7

RS-422

V.35

CH

.2

RS-422

V.35

CH

.1Sub-Channel 2

Interface Changer

RS-422

V35J7

J6

Sub-Channel 1Interface Changer

RS-422

V35J5

J4

Figure 2-1. HS-2 Module, Internal Settings

HS-2 Installation & Operation Manual Chapter 2 - Operation

09/07/98 1:00 PM Module Panels 2-3

2.3 Module Installation

Refer to the system installation plan and insert the module in the assignedI/O slot of the MEGAPLEX enclosure. The module starts operating as soon asit is plugged into an operating MEGAPLEX enclosure.

• Install its interface module in the corresponding enclosure slot:

• Install an IM-DB25/2 module in the MEGAPLEX-2100F.

• Install an IMB-DB25/2 module in the MEGAPLEX-2100B.

CableConnections

Identify the cables intended for connection to the module, and connecteach cable to the corresponding connector, on the module panel or on theinterface module.

As each channel has its own connector, connect a cable between thechannel connector and the user's equipment.

The cable type depends on the required interface. Table 2-1 lists the RADcatalog numbers of the required cables. Cable wiring information isprovided in Appendix A.

Table 2-1. Selection of Cables

Interface Clock Mode Cable Type

V.35 DCE CBL-HS2V1

External DCE CBL-HS2V2

DTE CBL-HS2V3

V.11/RS-422 DCE CBL-HS2R1

External DCE CBL-HS2R2

DTE CBL-HS2R3

X.21 DCE CBL-HS2X1

External DCE -

DTE -

RS-530 DCE Straight

External DCE -

DTE -


2-4 Configuration Instructions 09/07/98 1:00 PM

2.4 Module Panels

The panels of the HS-2 modules include interface connectors. Figure 2-2shows the module panels.

The panels of the MTHS-2 modules include only the module designation.

Figure 2-2. HS-2 Module Panel

HS-2 Installation & Operation Manual Chapter 2 - Operation

09/07/98 1:00 PM Configuration Instructions 2-5

2.5 Configuration Instructions

General This Section provides information on the configuration parameters of theHS-2 and MTHS-2 modules. The configuration activities required to selectthe desired values of these parameters are performed by means of themanagement system used to control the MEGAPLEX unit. The instructionsappearing in this Section assume that you are familiar with the managementsystem being used: supervision terminal or Telnet (covered by Chapter 3 ofthe MEGAPLEX-2100 Installation and Operation Manual), or a networkmanagement system, e.g., the RADview network management system (referto the RADview User's Manual for instructions).

Channel Parameters

Table 2-2 explains the programmable parameters of the HS-2 channels, andtheir range of values.

Table 2-2. Channel Parameters

Parameter Description

Connect Determines whether the channel is connected to the selected main link:

YES Channel is connected, and traffic can be carried.

NO Channel is disconnected. You can still program the desired parameters, so the module will be ready to operate when needed.

Rate (kbps) Specifies the data rate of this channel. The data rate determines the number of time slots allocatedto the channel on the selected main link. The data rate is shown both as a multiple of a basic rate(56 or 64 kbps), and as an absolute number in kbps. This representation has the advantage that youcan see at a glance the required number of time slots.

The range of allowable multiples is 1 through 24 for a T1 main link, and 1 through 31 for an E1link. Remember that the maximum (24 or 31) is only the theoretical limit: when selecting therate, you must take into consideration the number of time slots that are used by, or must bereserved for, other channels and/or other modules using the same main link. Moreover, if an E1main link is used and the framing method is G.732S, you must also reserve one time slot (timeslot 16) for signaling.

Clock Mode Selects the clock mode used by the channel: DCE, EXTERNAL DCE (DTE1) or DTE (DTE2). Theclock modes are explained in Chapter 1 of the MEGAPLEX-2100 Installation and Operationmanual.NOTE If the MEGAPLEX unit uses external timing, the HS-2 channel serving as the

external clock source must use the DTE (DTE2) clock mode.

CTS Specifies the state of the channel CTS line. Two selections are available: CTS constantly ON, orCTS line follows the local RTS line.


2-6 Configuration Instructions 09/07/98 1:00 PM

Table 2-2 Channel Parameters (Cont.)

FIFO Size Selects the size of the FIFO buffer used by the channel.

In general, you should select AUTOMATIC, meaning “automatic FIFO size selection”. Theautomatically selected values are as follows:

For T1 link: ± 6 bits for 64 kbps± 30 bits for 128 and 192 kbps± 52 bits for 256 through 512 kbps± 72 bits for 576 through 1024 kbps± 52 bits for 1088 through 1280 kbps± 30 bits for 1344 and 1408 kbps± 16 bits for 1472 and 1536 kbps.

For E1 link: ± 16 bits for 64 kbps± 30 bits for 128 and 192 kbps± 52 bits for 256 through 448 kbps± 72 bits for 512 through 1536 kbps± 52 bits for 1600 through 1792 kbps± 30 bits for 1856 and 1920 kbps± 16 bits for 1984 kbps.

For special applications that require longer buffers, you may want to select one of the supportedFIFO sizes manually: ±16 bits, ±30 bits, ±52 bits, or ±72 bits

TDM Link Selects the main link to which the module will be connected. The main link is specified byindicating the number of the I/O slot in which the desired main link module is installed.

NOTE The selection made for any channel automatically changes the selections for both channels.

Time Slot Assignment

After performing the configuration of the individual module channels, it isnecessary to assign the required number of main link time slots to eachconnected channel.

Perform time slot assignment in accordance with Chapter 3 of theMEGAPLEX-2100 Installation and Operation Manual.

09/07/98 1:01 PM Alarm Messages 3-1

Chapter 3Alarms and Diagnostics

3.1 General

This chapter provides information on the alarms generated by the HS-2modules, specifies their type (event or state), and explains the module-specific diagnostic functions.

The diagnostic information presented in this chapter supplements thegeneral MEGAPLEX-2100 diagnostics operation instructions contained inPart I of the Installation and Operation manual.

3.2 Alarm Messages

Table 3-1 lists the specific alarm messages generated by the HS-2 modules,specifies their type, and explains their function. The module generatesadditional alarm messages, which are not specific to HS-2 or MTHS-2modules. These messages are explained in Appendix B in Part I of theMEGAPLEX-2100 Installation and Operation manual.

Table 3-1. Alarm Messages

Code Message Type Explanation

021 MODULE WAS REMOVED Event The module has been taken out of its slot.

022 MODULE WAS INSERTED Event The module has been inserted.

023 MODULE RESET OCCURRED Event The module has been automatically reset.

024 MODULE INIT ERROR/HARDWAREFAILURE

State Module initialization has failed, or a hardwaremalfunction has been detected in this module.

025 NOT PROGRAMMED MODULE State(Minor)

The module that has been read from theMEGAPLEX unit is not programmed in theactive data base.

Chapter 3 - Alarms and Diagnostics HS-2 Installation & Operation Manual

3-2 Diagnostics 09/07/98 1:01 PM

Table 3-1 Alarm Messages (Cont.)

Code Message Type Explanation

026 PROGRAMMED/INSTALL MODULEMISMATCH

State The module that has been read from theMEGAPLEX unit does not match the moduleprogrammed in the active data base.

031 COMMUNICATION FAILURE (MP) Event The CL module reported a temporary failure in thecommunication with the HS-2 module.

120 FIFO OVERFLOW/UNDERFLOW Event The FIFO buffer of the specified channeloverflowed/underflowed. If the event recurs, it isusually caused by incorrect selection of the timingmode on the module channels and/or user'sequipment, or by technical problems (unstableclock) in the timing circuits of the user'sequipment.

121 INTERNAL RATE GENERATOR FAILURE State The internal baud rate generator of the specifiedchannel failed. The module must be repaired.

029 NOT SUPPORTED SOFTWARE VER State The HS-2 module includes an old software versionthat differs from the version expected by the CLmodule.

3.3 Diagnostics

The HS-2 modules have a complete set of test loopbacks which includeslocal and remote loopbacks on each channel. Bit error rate test (BERT) canalso be performed on each channel.

When a test or loopback is activated, the user can also specify the time itremains active: the range is 1 through 30 minutes, in 1-minute steps. Afterthe specified time, the test or loopback is automatically deactivated, thusreducing the management workload during system troubleshooting. Thedefault selection is continuous connection, i.e., the test or loopback remainactive until canceled by a user's command.

The following sections describe the available diagnostic activities.

Local Loopback The local loopback is performed at the channel input, by returning thetransmit signal of the channel to the receive path. The transmit signal is stillsent to the remote MEGAPLEX unit.

A typical local loopback signal path for an MTHS-2 module is shown infigure 3-1.

HS-2 Installation & Operation Manual Chapter 3 - Alarms and Diagnostics

09/07/98 1:01 PM Diagnostics 3-3

HS-2 HS-2

Local Unit

SystemManagement

Remote Unit

User orTest

Equipment

User orTest

Equipment

Figure 3-1. Local Loopback, Signal Path

RemoteLoopback

The remote loopback is performed at the channel output, by returning thereceive signal of the channel to the input of its transmit path. The receivesignal is still available to the local user.

A typical remote loopback signal path for an MTHS-2 module is shown infigure 3-2.

Chapter 3 - Alarms and Diagnostics HS-2 Installation & Operation Manual

3-4 Diagnostics 09/07/98 1:01 PM

HS-2 HS-2

Local Unit

SystemManagement

Remote Unit

User orTest

Equipment

User orTest

Equipment

Figure 3-2. Remote Loopback, Signal Path

Bit Error RateTesting (BERT)

The BERT is used to check for proper data transmission through a selectedchannel, and obtain a qualitative evaluation of data transmission withoutusing external test equipment.

The bit error rate is measured by applying a 24-1 bit pseudo-random testsequence generated by an on-board generator to the input of the transmitpath. The transmitted data is returned by means of a loopback somewherealong the data path (e.g., by connecting a local or remote main linkloopback) to the receive path of the module, and routed to a test sequenceevaluator.

Instead of using a loopback, it is also possible to activate the BERT at bothends of the link, because the same data patterns are used at both ends. Theevaluator compares the received data, bit by bit, to the original data anddetects any difference (bit error). The output of the evaluator is sampledduring module polling, to check whether errors were detected in theinterval between consecutive pollings. The total number of intervals duringwhich errors were detected are counted and can be displayed to theoperator.

During the BERT, the channel is disconnected from the user dataequipment.

At any given time, BER testing can be performed on only one channel of theHS-2 module.

RecommendedTest Sequence

The loops available on the HS-2 or MTHS-2 modules provide a rapid andefficient way to identify the general location of a fault at either in themodule, or in the external equipment or connections to channels.

HS-2 Installation & Operation Manual Chapter 3 - Alarms and Diagnostics

09/07/98 1:01 PM Diagnostics 3-5

If a complaint is received from one of the users connected to a HS-2module, first activate the HS-2 local loopback at the side the complaint isreceived from. The local user must receive its own signal. If the signal is notreceived, the problem is at the local end:

• Check the connections to the user equipment, or the user's equipmentitself. Replace the cable.

• Replace the local HS-2 module.

If the local subscriber receives its own signal when the local loopback isconnected, activate the remote loopback and repeat the check. You mayalso perform BER testing, to confirm the proper operation of thetransmission path.

If the remote loopback and BER test indicate the link operates normally, theproblem is at the remote end. To check, repeat the procedure on theremote MEGAPLEX unit.

09/07/98 5:47 PM Connections to HS-2 and MTHS-2 Modules A-1

Appendix AConnection Data

A.1 Channel Interface Signals

Table A-1 lists the channel interface signals.

Table A-1. Channel Interface Signals

Name ITU-T Circuit No. Function DirectionOut In

Notes

TDATDB

103 Transmit data X

RDARDB

104 Receive data X

RCARCB

115 Receiver signal element timing X 2

TCATCB

114 Transmitter signal element timing X

COACOB

Control OUT signal X 1

CIACIB

Control IN signal X 1

ETCAETCB

113 External transmit signal element timing X

DSR 107 Data set ready X 3

Notes 1. For V.35 interfaces, wire B of control signal lines is not connected. Use wireA with respect to GND.

2. For X.21 interfaces, RCA and RCB should be connected to the Sa and Sbinputs of the X.21 interface, respectively.

3. For V.35 only (always active +5V).

Appendix A - Connection Data HS-2 Installation & Operation Manual

A-2 Connections to HS-2 and MTHS-2 Modules 09/07/98 5:47 PM

A.2 Connections to HS-2 and MTHS-2 Modules

The MTHS-2 module requires the IM-DB25/2 interface module wheninstalled in the MEGAPLEX-2100F, and the IMB-DB25/2 interface modulewhen installed in the MEGAPLEX-2100B.

Figure A-2 shows the panels of the IM-DB25/2 and IMB-DB25/2 modules.

Figure A-1. IM-DB25/2 andIMB-DB25/2 Panels

Module HS-2 also uses 25-pin D-type connectors with the same pinallocation. Table A-2 lists the allocation of pins in the DB-25 connectors.

CH.1(1-2) CH.2

(3-4)

CH.2(3-4) CH.1

(1-2)

IM-DB25/2 IM-DB25/2

HS-2 Installation & Operation Manual Appendix A - Connection Data

09/07/98 5:47 PM Adapter Cables for HS-2 and MTHS-2 Modules A-3

Table A-2. Pin Allocation in DB25 Connector

Pin Direction Designation Function RS-530

1 ↔ FG Frame Ground AA

2 To HS-2 SDA Send Data A BA(A)

3 From HS-2 RDA Receive Data A BB(A)

4 To HS-2 RTSA RTS A CA(A)

5 From HS-2 CTSA CTS A CB(A)

6 From HS-2 DSRA DSR A CC(A)

7 ↔ SG Signal Ground AB

8 From HS-2 DCDA DCD A CF(A)

9 From HS-2 RCB Receive Clock B DD(B)

10 From HS-2 DCDB DCD B CF(B)

11 To HS-2 SCEB Send External Clock B DA(B)

12 From HS-2 SCB Send Clock B DB(B)

13 From HS-2 CTSB CTS B CB(B)

14 To HS-2 SDB Send Data B BA(B)

15 From HS-2 SCA Send Clock A DB(A)

16 From HS-2 RDB Receive Data B BB(B)

17 From HS-2 RCA Receive Clock A DD(A)

18 N/A – Not connected –

19 To HS-2 RTSB RTS B CA(B)

20 To HS-2 DTRA/RCEA DTRA/Receive External Clock A CD(A)


22 From HS-2 DSRB DSR B CC(B)

23 To HS-2 DTRB/RCEB DTRB/Receive External Clock B CD(B)

24 To HS-2 SCEA Send External Clock A DA(A)



A-4 Adapter Cables for HS-2 and MTHS-2 Modules 09/07/98 5:47 PM

A.3 Adapter Cables for HS-2 and MTHS-2 Modules

RAD offers adapter cables to connect data equipment to the two 25-pin D-type connectors of the HS-2 or MTHS-2 modules. Cable wiring and the pinallocations in the user side connectors are given in Tables A-3, A-4, and A-5.

Table A-3. Channel Interface Adapter Cable - DCE Clock Mode

Pin Direction Designation Function RS-422 V.35

1 ↔ FG Frame Ground 1 A

2 To HS-2 SDA Send Data A 4 P

3 From HS-2 RDA Receive Data A 6 R

4 To HS-2 RTSA RTS A 7 C

5 From HS-2 CTSA CTS A 9 D

6 From HS-2 DSRA DSR A 11 E

7 ↔ SG Signal Ground 19 B

8 From HS-2 DCDA DCD A 13 F

9 From HS-2 RCB Receive Clock B 26 X

10 From HS-2 DCDB DCD B 31 –

11 To HS-2 SCEB Send External Clock B 35 W

12 From HS-2 SCB Send Clock B 23 AA

13 From HS-2 CTSB CTS B 27 –

14 To HS-2 SDB Send Data B 22 S

15 From HS-2 SCA Send Clock A 5 Y

16 From HS-2 RDB Receive Data B 24 T

17 From HS-2 RCA Receive Clock A 8 V

18 N/A – Not connected – –

19 To HS-2 RTSB RTS B 25 –

20 To HS-2 RCEA Receive External Clock A – –


22 From HS-2 DSRB DSR B 29 –

23 To HS-2 RCEB Receive External Clock B – –

24 To HS-2 SCEA Send External Clock A 17 U


HS-2 Installation & Operation Manual Appendix A - Connection Data

09/07/98 5:47 PM Adapter Cables for HS-2 and MTHS-2 Modules A-5

Table A-4. Channel Interface Adapter Cable – External DCE Clock Mode (DTE1)

Pin Direction Designation Function RS-530 RS-422 V.35

1 ↔ FG Frame Ground 1 1 A

2 To HS-2 SDA Send Data A 3 6 R

3 From HS-2 RDA Receive Data A 2 4 P

4 To HS-2 RTSA RTS A 8 13 F

5 From HS-2 CTSA CTS A – – –

6 From HS-2 DSRA DSR A 20 12 H

7 ↔ SG Signal Ground 7 19 B

8 From HS-2 DCDA DCD A 4 7 C

9 From HS-2 RCB Receive Clock B 11 35 W

10 From HS-2 DCDB DCD B 19 25 –

11 To HS-2 SCEB Send External Clock B 9 26 X

12 From HS-2 SCB Send Clock B – – –

13 From HS-2 CTSB CTS B – – –

14 To HS-2 SDB Send Data B 16 24 T

15 From HS-2 SCA Send Clock A – – –

16 From HS-2 RDB Receive Data B 14 22 S

17 From HS-2 RCA Receive Clock A 24 17 U

18 N/A – Not connected – – –

19 To HS-2 RTSB RTS B 10 31 –

20 To HS-2 RCEA Receive External Clock A – – –


22 From HS-2 DSRB DSR B 23 30 –

23 To HS-2 RCEB Receive External Clock B – – –

24 To HS-2 SCEA Send External Clock A 17 8 V



A-6 Adapter Cables for HS-2 and MTHS-2 Modules 09/07/98 5:47 PM

Table A-5. Channel Interface Adapter Cable - DTE Clock Mode (DTE2)

Pin Direction Designation Function RS-530 RS-422 V.35

1 ↔ FG Frame Ground 1 1 A

2 To HS-2 SDA Send Data A 3 6 R

3 From HS-2 RDA Receive Data A 2 4 P

4 To HS-2 RTSA RTS A 8 13 F

5 From HS-2 CTSA CTS A – – –

6 From HS-2 DSRA DSR A 20 12 H

7 ↔ SG Signal Ground 7 19 B

8 From HS-2 DCDA DCD A 4 7 C

9 From HS-2 RCB Receive Clock B – – –

10 From HS-2 DCDB DCD B 19 25 –

11 To HS-2 SCEB Send External Clock B 9 26 X

12 From HS-2 SCB Send Clock B – – –

13 From HS-2 CTSB CTS B – – –

14 To HS-2 SDB Send Data B 16 24 T

15 From HS-2 SCA Send Clock A – – –

16 From HS-2 RDB Receive Data B 14 22 S

17 From HS-2 RCA Receive Clock A – – –


19 To HS-2 RTSB RTS B 10 31 –

20 To HS-2 RCEA Receive External Clock A 15 5 Y


22 From HS-2 DSRB DSR B 23 30 –

23 To HS-2 RCEB Receive External Clock B 12 23 AA

24 To HS-2 SCEA Send External Clock A 17 8 V


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Publication Number: 764-225-09/98

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Publication No. 764-225-09/98

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Manual Modulo HS-2 Megaplex 2100

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