Cisco 2975 - Manual (Page 52)

B-6
Catalyst 2975 Switch Hardware Installation Guide
OL-17784-01
Appendix B Connector and Cable Specifications
Cables and Adapters
Console Port Adapter Pinouts
The console port uses an 8-pin RJ-45 connector. The supplied RJ-45-to-DB-9 adapter cable is used to
connect the console port of the switch to a console PC. You need to provide a RJ-45-to-DB-25 female
DTE adapter if you want to connect the switch console port to a terminal. You can order a kit (part
number ACS-DSBUASYN=) containing that adapter from Cisco.
Table B-2 Console Port Signaling with 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 with 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
RxD 2 TxD
DSR 20 DTR
CTS 4 RTS