Console Port Adapter Pinouts - Cisco Catalyst 9300 Series Hardware Installation Manual

Console Port Adapter Pinouts

Figure 80: 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 47: Console Port Signaling with a DB-9 Adapter
Switch Console Port (DTE)
Signal
RTS
DTR
TxD
GND
GND
RxD
DSR
CTS
Table 48: Console Port Signaling with a DB-25 Adapter
Switch Console Port (DTE)
Signal
RTS
DTR
TxD
GND
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
118
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
Connector and Cable Specifications
Console Device
Signal
CTS
DSR
RxD
GND
GND
TxD
DTR
RTS
Console Device
Signal
CTS
DSR
RxD
GND