Cisco Catalyst 3550 Hardware Installation Manual page 69

Appendix B Connector and Cable Specifications
Table B-2
and the RJ-45-to-DB-25 female DTE adapter.
The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch. You
Note
can order a kit (part number ACS-DSBUASYN=) containing this adapter from
Cisco.
Table B-2
Switch
Console
Port (DTE)
Signal
RTS
DTR
TxD
GND
GND
RxD
DSR
CTS
78-11358-01
lists the pinouts for the console port, the RJ-45-to-RJ-45 rollover cable,
Console Port Signaling and Cabling Using a DB-25 Adapter
RJ-45-to-RJ-45
Rollover Cable
RJ-45 Pin RJ-45 Pin
1 8
2 7
3 6
4 5
5 4
6 3
7 2
8 1
Catalyst 3550 Multilayer Switch Hardware Installation Guide
Cable and Adapter Specifications
RJ-45-to-DB-25 Console
Terminal Adapter Device
DB-25 Pin Signal
5 CTS
6 DSR
3 RxD
7 GND
7 GND
2 TxD
20 DTR
4 RTS
B-7