97
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.
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
Ω
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
Ω
resistor
6
1
2
5
8
1
6 5 4 3 2 1