Cable Specifications and Information
Console Port (DTE)
TXD
GND
GND
RXD
DSR
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
Auxiliary Port (DTE)
Signal
RTS
DTR
TXD
GND
GND
RXD
DSR
CTS
1
Pin 1 is connected internally to pin 8.
OL-31292-01
RJ-45-to-RJ-45 Rollover Cable
3
6
4
5
5
4
6
3
7
2
2
8
1
RJ-45-to-RJ-45 Rollover Cable
RJ-45 Pin
RJ-45 Pin
1
1
8
2
7
3
6
4
5
5
4
6
3
7
2
1
8
1
Cisco VG310 and Cisco VG320 Voice Gateways Hardware Installation Guide
Auxiliary Port Signals and Pinouts
RJ-45-to-DB-25
Console Device
Terminal Adapter
3
RXD
7
GND
7
GND
2
TXD
20
DTR
4
RTS
RJ-45-to-DB-25
Modem
Modem Adapter
DB-25 Pin
Signal
4
RTS
20
DTR
2
TXD
7
GND
7
GND
3
RXD
8
DCD
5
CTS
71