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Appendix B Cable Connector Pinouts
RJ-45 RS-232 Console Port Pinouts
B-6
Cisco 11500 Series Content Services Switch Hardware Installation Guide
78-13884-03
Connecting the Console Port to a Modem
To connect the console port to a terminal, use an RJ-45 to RJ-45 rollover cable
and an RJ-45 to DB-25 male DCE adapter.
Table B-5 lists the signals of the console port and modem device, and the pinouts
of the rollover cable and the DCE adapter interfaces.
Table B-5 Console Port to Modem Signals and Pinouts
Console
Port Signal
Console Port to
RJ-45 Rollover
Cable Pinouts
RJ-45 Rollover
Cable to RJ-45
DCE Adapter
Pinouts
DB-25 DCE
Adapter to
Modem
Pinouts
Modem
Device Signal
RTS 1 8 4 RTS
DTR 2 7 20 DTR
TXD 3 6 3 TXD
GND 4 5 7 GND
GND 5 4 7 GND
RXD 6 3 2 RXD
DSR 7 3 8 DCD
CTS 8 1 5 CTS