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SERVSWITCH™ AFFINITY
Appendix C: Pinout of the
Dedicated Serial Ports
The table below shows the pinout of the RJ-12 (“6-wire RJ-11”) female RS-232 serial
ports on the ServSwitch Affinity’s Port Cards.
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