Console Device
RJ-45-to-DB-25
Terminal Adapter
RJ-45-to-RJ-45 Rollover Cable
Console Port (DTE)
RXD
3
6
3
TXD
GND
7
5
4
GND
GND
7
4
5
GND
TXD
2
3
6
RXD
DTR
20
2
7
DSR
RTS
4
1
8
2
CTS
1
You can use the same cabling to connect a console to the auxiliary port.
2
Pin 1 is connected internally to pin 8.
Auxiliary Port Signals and Pinouts
The following table lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 rollover
cable, and the RJ-45-to-DB-25 male DCE adapter (labeled MODEM).
Table 18: Auxiliary Port Signaling and Cabling Using a DB-25 Adapter
Modem
RJ-45-to-DB-25
Modem Adapter
RJ-45-to-RJ-45 Rollover Cable
Auxiliary Port (DTE)
Signal
DB-25 Pin
RJ-45 Pin
RJ-45 Pin
Signal
RTS
4
8
1
1
RTS
DTR
20
7
2
DTR
TXD
2
6
3
TXD
GND
7
5
4
GND
GND
7
4
5
GND
RXD
3
3
6
RXD
DCD
8
2
7
DSR
CTS
5
1
8
1
CTS
1
Pin 1 is connected internally to pin 8.
Cisco VG310 and Cisco VG320 Voice Gateways Hardware Installation Guide
OL-31292-01
71
Cable Specifications and Information
Auxiliary Port Signals and Pinouts
