Cisco ASR 920 series

If you are connecting a redundant DC power supply, ensure that each power supply is connected
to a separate power source in order to prevent power loss in the event of a power failure.
Note
Install the DC Power Cables
When installing DC power supply, use 12AWG, 90°C temperature rated cable. The recommanded cable length
is 3 meters maximum from source. Up to 5 meters use 10AWG, and up to 3 meters use 12AWG, 90°C
temperature rated cable and for other length contact Cisco.
Note
• Always ensure that the building’s installation for short-circuit (overcurrent) protection does not exceed
15A.
• We recommended using a Circuit breaker or a fast acting fuse with a maximum DC rating of 10A for
over current protection.
Note
The DC connector or terminal block has an inbuilt screw and cage nut to which a torque of 1.3 to 1.8 N-m
can be applied.
Note
Figure 53: DC Connector with Inbuilt Screw
0.27 in. (0.68 cm)C0.97 in. (2.4 cm)A
0.17 in. (0.43 cm)D0.31 in. (0.78
cm)
B
0.81 in. (2 cm)M
To attach the DC power supplies:
Installing the Cisco ASR 920 Series Router
58
Installing the Cisco ASR 920 Series Router
Install the DC Power Cables