B-11
Cisco7609 Internet Router Installation Guide
OL-5079-04
AppendixB Connector and Cable Spec ifications
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-t o-RJ-45 rollover
cable, and the RJ-45-to-DB-25 male DCE adapter.
TableB-3 Port Mode 1 Signaling and Pinouts (DB-25 Adapter)
Console Port RJ-45-to-RJ-45 Rollover Cable
RJ-45-to-DB-25
Termi na l
Adapter
Console
Device
Signal RJ-45 Pin RJ-45 Pin DB-25 Pin Signal
RTS 11
1. Pin 1 is connected internally to Pin 8.
85 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 8114 RTS
TableB-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 1184 RTS
DTR 2 7 20 DTR
TxD 3 6 3 TxD
GND 4 5 7 GND
GND 5 4 7 GND