Reference Guide

RS-232-C Modem Cable
Modem end
25-pin male
Hub end
9-pin male
Signal
23
Tx
32Rx
47RTS
58CTS
66
DSR
75GND
8 1 CD OR DCD
20 4 DTR
22 9
RI
23 DRS – typically on V.24 (European) modems
(not connec ted)
Cables and Connectors
Cables and Connectors
A-8