Console Port Adapter Pinouts - Cisco Catalyst 9500 Series Hardware Installation Manual

Connector and Cable Specifications
Figure 89: Identifying a Crossover Cable

Console Port Adapter Pinouts

The RS-232 console port uses an 8-pin RJ-45 connector. Use an RJ-45-to-DB-9 adapter cable to connect the
switch console port to a console PC. You need to provide a RJ-45-to-DB-25 female DTE adapter to connect
the switch console port to a terminal.
Table 27: Console Port Signaling with a DB-9 Adapter
Switch Console Port (DTE)
Signal
RTS
DTR
TxD
GND
GND
RxD
DSR
CTS
Table 28: Console Port Signaling with a DB-25 Adapter
Switch Console Port (DTE)
Signal
RTS
DTR
TxD
GND
RJ-45-to-DB-9 Terminal Adapter
DB-9 Pin
8
6
2
5
5
3
4
7
RJ-45-to-DB-25 Terminal Adapter
DB-25 Pin
5
6
3
7
Cisco Catalyst 9500 Series Switches Hardware Installation Guide
Console Port Adapter Pinouts
Console Device
Signal
CTS
DSR
RxD
GND
GND
TxD
DTR
RTS
Console Device
Signal
CTS
DSR
RxD
GND
103