4-30
Cisco Network Convergence System 4000 Series Hardware Installation Guide
Chapter 4 Installing Power Components
Powering On the Chassis
Step 4
Disconnect the DC power cables from their terminals in the following order and note the color of each
cable:
a.
Negative (PWR) cables first.
b.
Positive (RTN) cables last.
Step 5
Repeat
through
for the other power tray, if installed.
Reconnecting DC Power
To reconnect DC power to a DC power tray, see
Connecting Power to a DC-Powered Chassis, page 4-25
.
Powering On the Chassis
Follow these steps to turn on power to an AC-powered or DC-powered chassis:
Step 1
Power on the circuit breaker to your power sources one at a time.
Step 2
Verify that the correct Power Input LED on each power module in the tray is lit (one input on the LED
flashes and both inputs on the LED are solid). Continue with steps 1 and 2 until all inputs have been
verified.
Note
On the DC power tray, the Power Input LED is lit solid green if both DC feeds are valid and
blinks green if only a single DC feed is valid.
Step 3
Set the power tray switch for Feed A to the ON (1) position. This powers on slots PWR MOD 0 through
PWR MOD 3.
Step 4
Verify that the Power Output LED on each power module in the tray is lit.
Step 5
Repeat
and
for Feed B.