RAD Data comm RSD-20 operation manual Appendix B, Table B.1 Interface Signal Description

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APPENDIX B

Table B.1

V.35 Interface Signal Description

V.35

Signal Function

34-pin Stand-Alone

 

 

Pin

Circuit

 

 

 

 

 

Protective Ground

A

Frame

101

 

 

 

Signal Ground

B

Signal GND 102

 

 

 

 

Transmitted Data

S

TD(B)

103

 

P

TD(A)

103

 

 

 

 

Received Data

R

RD(A)

104

 

T

RD(B)

104

 

 

 

 

Request to Send

C

RTS

105

 

 

 

 

Clear to Send

D

CTS

106

 

 

 

 

Data Set Ready

E

DSR

107

 

 

 

 

Data Terminal Ready

H

DTR

108

 

 

 

 

Carrier Detect

F

DCD

109

 

 

 

 

External Transmit Clock

U

SCTE(A)

113

 

W

SCTE(B)

113

 

 

 

 

Transmit Clock

Y

SCT(A)

114

 

a

SCT(B)

114

 

 

 

 

Receive Clock

X

SCR(B)

115

 

V

SCR(A)

115

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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