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Chapter 5
Connecting the Router to Power
Verify AC Power Connection
After you connect the router to AC power, verify that the power is being supplied to the router by
checking the status of the SYS (System) LED. As the router starts up, the SYS LED will show these
states:
Sequence
1
2
3
For the SYS LED location, see
Connect to DC Power (Optional)
You can connect the router to a DC power source that provides backup power to the router in cases when
AC power is disrupted or fails. You must provide the DC power source and ensure that it is compliant
with the installation site requirements.
To connect a DC-input power source to the router, follow these steps:
Turn off power to the DC power source at the designated circuits.
Step 1
Using a wire-stripping tool to strip both of the wires from the DC-input power source. Expose the wire
Step 2
to the appropriate length for the terminal block, about 0.25 inches.
Insert the wires into the terminal block openings that correspond to the labeled DC terminals shown in
Step 3
Figure 5-1
Make sure to match the polarity (negative-to-negative and positive-to-positive) when you connect the
wires to the terminal block openings:
OL-26438-02
State
Description
Yellow
System is receiving power.
Green blinking
The system is starting up or power cycling, and loading system
software, including BIOS and operating system.
Green solid
The system is functioning normally.
Figure 10-1
and described in
Table
5-1.
in the chapter
Router LED Locations and
Cisco 1120 Connected Grid Router Hardware Installation Guide
Connect to DC Power (Optional)
States.
5-9
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