Specifications

42
“R2” SERVSWITCH
Appen dix 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-KΩ
resistor
3 Transmit Data TXD Output Serial data from port
4 Signal Ground SGND N/A DC ground reference
5 Receive Data RXD Input Serial data to port
6 Request to Send RTS Output Pulled high with 1-KΩ
resistor