Cisco ASR 901S Series Installation Manual page 64

Assembling and Connecting the DC Power Cable to the Router
Before You Begin
When powering the router with DC power, you must ensure that DC power can be conveniently removed
from the unit. The power should not be removed by disconnecting the DC power connector on the unit.
Procedure
Step 1 Insert shielded copper wires through the cable sleeve. A maximum of four copper wires can be used.
Step 2
Pass the cable sleeve through the cord grip body, grommet, and molded body as shown in the figure below.
Step 3 Insert each of the copper wires into the O-ring contacts (see the following table) provided and tighten the
screws into the coupling unit (holding the wires) using the special screw driver. The DC power connector
assembly is now complete.
Figure 31: Assembling the DC Power Connector
1
2
Step 4 Before connecting DC power to the router, ensure that the ground is connected to the router (see
the Router, on page
Step 5 Turn off all power sources to the router, including the DC power source.
Caution
Caution
Step 6 Connect the DC power connector to the DC input plug on the faceplate of the router. To power on the router,
see Powering on the Router, on page
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
54
Black wire, -48 V 3
White wire (not used) 4
45).
Do not connect the DC power connector when the router is powered
on.
When connecting the DC power to the router, always connect the router end of the cable FIRST.
When removing the DC power connector, always disconnect the router end of the cable LAST.
69.
Red wire, -48 V RTN
Green or Yellow wire, safety ground
Installing the Router
Grounding
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