APPENDIX C: Pinout of RS-232 Port

Appendix C: Pinout of RS-232 Port

The table below shows the pinout of the ServSwitch’s RJ-12 (“6-wire RJ-11”) female RS-232 port.

1 6

Pin

Signal Name

Abbrev.

Direction

Description

 

 

 

 

 

 

 

1

Data Set Ready

DSR

Input

Reserved (not used)

 

 

 

 

 

 

 

2

Data Terminal Ready

DTR

Output

Pulled high with 1-K

resistor

 

 

 

 

 

 

3

Transmit Data

TD

Output

Serial data from port

 

 

 

 

 

 

 

4

Signal Ground

SGND

N/A

DC ground reference

 

 

 

 

 

 

 

5

Receive Data

RD

Input

Serial data to port

 

 

 

 

 

 

 

6

Request to Send

RTS

Output

Pulled high with 1-K

resistor

 

 

 

 

 

 

83

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