Cisco ASR 907 Hardware Installation Manual page 110

Connecting to the Auxiliary Port
To connect a modem to the router, follow these steps:
Step 1 Connect the RJ45 end of the adapter cable to the black AUX port on the router, as shown in the figure below.
Figure 42: Connecting a Modem to the Cisco ASR 907 Router
1
2
Cisco ASR 907 Router Hardware Installation Guide
98
RJ45 AUX port
DB-9 to DB-25 adapter
Installing the Cisco ASR 907 Router
3
4
RJ45 to DB-9
Modem