User's Manual

Table Of Contents
Procedure
Step 1
Before connecting DC power to the router, ensure that the ground is connected to the router (see
Grounding
the Router, on page 44).
Step 2
Turn off all power sources to the router, including the DC power source.
When installing DC power to the router, always connect the router of the cable FIRST. When
removing the DC power connector, always disconnect the router end of the cable LAST.
Caution
Step 3
Connect the DC power connector to the DC input plug (see the following figure) on the bottom of the router.
Figure 29: DC Power Connector
AC Power Cable
The router supports the Cisco AC power cable that is shipped with the unit. One end of the cable has the router
AC power connector; the other end is unfinished and you must provide and attach an AC power plug, or
terminate the cable at your installation site. The AC power plug or termination method you use depends on
the power source, such as a junction box, at your site.
If you attach an AC power plug:
Use a plug that complies with local and national electrical codes.
Verify the connection between the cable and plug is weatherproof.
You might have to cut the cable if a specific cable length is needed for your installation.
Ensure that the power source is OFF before connecting or disconnecting the power cord wires from the
power source.
Caution
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
OL-29732-01 51
Installing the Router
AC Power Cable
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