RAD Data comm RSD-20 operation manual Table of Contents

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TABLE OF CONTENTS

1 INTRODUCTION

1.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1

1.2Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1

1.3

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2

1.4Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3

2 INSTALLATION

2.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1

2.2Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1

2.3

Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1

2.4Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1

2.5System Synchronization and Clock Distribution . . . . . . . . . . . . . . . . . . . 2.5

3

OPERATION

 

3.1

General

3.1

3.2

Controls and Indicators

3.1

3.3

Operating Procedure

3.2

3.4Operational Field Strapping Changes . . . . . . . . . . . . . . . . . . . . . . . . 3.3

3.5

Fault Isolation Procedure

3.3

4

THEORY OF OPERATION AND APPLICATIONS

 

4.1

Introduction

4.1

4.2Contention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1

4.3Sub-channel Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.1

4.4

Control Signals

4.2

4.5

Applications

4.6

APPENDIX A X.21 INTERFACE SIGNAL DESCRIPTION

 

APPENDIX B X.35 INTERFACE SIGNAL DESCRITPION

 

FIGURES

 

 

Figure 2.1

Rear Panel

2.2

Figure 2.2

SD-20/V.35 PC Board Layout

2.4

Figure 2.3

RSD-20/X.21 PC Board Layout

2.4

Figure 2.4

Synchronization on Main Channel Modem’s Clock

2.5

Figure 2.5

Synchronization on Internal Clock

2.6

Figure 2.6

Synchronization on Sub-channel 1

2.7

Figure 3.1

Front Panel

3.1

Figure 4.1

Main Channel DTE with Sub-channel DCE

4.4

Figure 4.2

Main Channel DCE with Sub-channel DTE

4.4

Figure 4.3

Main Channel DTE with Sub-channel DTE

4.5

Figure 4.4

Main Channel DCE with Sub-channel DCE

4.5

Figure 4.5

RSD-20 Operating Modes

4.6

TABLES

 

 

 

Table 2.1

PC Board Switch and Strap Selection

2.3

Table 3.1

Control Functions

3.2

Table 3.2

Indicator Functions

3.2

Table A.1

X21 Interface Signal Description

A.1

Table B.1

V.35 Interface Signal Description

B.1

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Contents RSD-20 DUUDQW\ 6DIHW\DUQLQJV HFODUDWLRQRI&RQIRUPLW\ Table of Contents Functional Description IntroductionGeneral Specifications Power IndicatorsOrdering PhysicalPhysical Installation InstallationElectrical Installation AC PowerRear Panel Internal Switches and Strap SelectionRear Panel Installation Installation RSD-20/V.35 System Synchronization and Clock DistributionSynchronization on Main Channel Modem Clock Synchronization on Main Channel Modem’s ClockSynchronization on Internal Clock Synchronization on RSD-20 Internal ClockSynchronization on Sub-channel RSD-20External Clock for more than one Sub-channel RSD-20/X.21Main channel is DTE attached to a modem Main and all sub-channels are DCE attached to DTEsMain channel is DCE and sub-channels are mixed DTE and DCE Front Panel Controls and IndicatorsOperation Power Turn On Operating ProcedurePower Turn Off OperationPower Supply Fault Isolation ProcedureOperational Field Strapping Changes RSD MalfunctionSUB-CHANNEL Disable ContentionTheory of Operation and Applications IntroductionMain Channel Control Signals Control SignalsSub-channel Control Signals RSD-20/V.35RSD-20/X.21 Theory of Operation and Applications RSD-20 Operators Manual Theory of Operation and Applications RSD-20 Operating Modes ApplicationsAppendix a Table A.1 X21 Interface Signal DescriptionAppendix B Table B.1 Interface Signal Description