B-11
Cisco 7609 Internet Router Installation Guide
OL-5079-04
Appendix B Connector and Cable Specifications
Cable Specifications
Modem Adapter
Use the RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-25 male DCE adapter
(labeled “Modem”) to connect the console port to a modem.
Table B-4
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.
Table B-3
Port Mode 1 Signaling and Pinouts (DB-25 Adapter)
Console Port RJ-45-to-RJ-45 Rollover Cable
RJ-45-to-DB-25
Terminal
Adapter
Console
Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal
RTS
1
1
1.
Pin 1 is connected internally to Pin 8.
8
5
CTS
DTR
2
7
6
DSR
TxD
3
6
3
RxD
GND
4
5
7
GND
GND
5
4
7
GND
RxD
6
3
2
TxD
DSR
7
2
20
DTR
CTS
8
1
1
4
RTS
Table B-4
Port Mode 1 Signaling and Pinouts (Modem Adapter)
Console Port
RJ-45-to-RJ-45
Rollover Cable
RJ-45-to-DB-25
Modem Adapter
Modem
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal
RTS
1
1
8
4
RTS
DTR
2
7
20
DTR
TxD
3
6
3
TxD
GND
4
5
7
GND
GND
5
4
7
GND
