Installation guide

Appendix B Connector and Cable Specifications
Cable and Adapter Specifications
B-8
Catalyst 3550 Multilayer Switch Hardware Installation Guide
78-11358-06
Adapter Pinouts
Table B-2 lists the pinouts for the console port, the RJ-45-to-DB-9 adapter cable,
and the console device.
Table B-3 lists the pinouts for the console port, RJ-45-to-DB-25 female DTE
adapter, and the console device. The RJ-45-to-DB-25 female DTE adapter is not
supplied with the switch. You can order a kit (part number ACS-DSBUASYN=)
containing this adapter from Cisco.
Table B-2 Console Port Signaling Using a DB-9 Adapter
Switch Console
Port (DTE)
RJ-45-to-DB-9
Terminal Adapter
Console
Device
Signal DB-9 Pin Signal
RTS 8 CTS
DTR 6 DSR
TxD 2 RxD
GND 5 GND
GND 5 GND
RxD 3 TxD
DSR 4 DTR
CTS 7 RTS
Table B-3 Console Port Signaling Using a DB-25 Adapter
Switch Console
Port (DTE)
RJ-45-to-DB-25
Terminal Adapter
Console
Device
Signal DB-25 Pin Signal
RTS 5 CTS
DTR 6 DSR
TxD 3 RxD
GND 7 GND
GND 7 GND