Console Port; Console Port Pinouts; Connecting The Console Port To A Computer Using The Db-25 Adapter - Cisco MDS9120 - MDS 9120 Multilayer Fabric Switch Installation Manual

Console Port

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Console Port
The console port is an asynchronous RS-232 serial port with an RJ-45 connector. You can use the
RJ-45 to RJ-45 rollover cable and the RJ-45 to DB-9 female adapter or the RJ-45 to DB-25 female DTE
adapter (depending on your computer serial port) to connect the console port to a computer running
terminal emulation software.

Console Port Pinouts

Table C-1
Table C-1
Pin
1
1
2
3
4
5
6
7
8
1. Pin 1 is connected internally to pin 8.

Connecting the Console Port to a Computer Using the DB-25 Adapter

You can use the RJ-45 to RJ-45 rollover cable and RJ-45 to DB-25 female DTE adapter (labeled
"Terminal") to connect the console port to a computer running terminal emulation software.
lists the pinouts for the console port, the RJ-45 to RJ-45 rollover cable, and the RJ-45 to DB-25 female
DTE adapter.
Table C-2
Console Port RJ-45 to RJ-45 Rollover Cable
Signal
RTS
DTR
TxD
GND
GND
RxD
Cisco MDS 9100 Series Hardware Installation Guide
C-2
lists the pinouts for the console port on the Cisco MDS 9100 Series.
Console Port Pinouts
Signal
RTS
DTR
TxD
GND
GND
RxD
DSR
CTS
Port Mode Signaling and Pinouts with DB-25 Adapter
RJ-45 Pin RJ-45 Pin
1 8
2 7
3 6
4 5
5 4
6 3
Appendix C
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
Cable and Port Specifications
Table C-2
OL-21514-01