Appendix C. Cables
C–18
Table C–11 lists the pin assignments for a female
connector on the RS-232 octocable.
Table C–11. Pin Assignments for an RS-232 Octocable Connection
Pin
Description
Function
1
Frame ground
GND
2
Transmit data
TD
3
Receive data
RD
4
Request to send
RTS
5
Clear to send
CTS
6
Data set ready
DSR
7
Signal ground
SG
8
Data carrier detect
DCD
20
Data terminal ready
DTR
22
Ring indicator
RI
The remaining pins are not used.