Cisco NCS 4000 Series Hardware Installation page 205

Installing Power Components
Connect each AC power supply to a dedicated power source (branch circuit). Each AC input power supply
Note
operates at a nominal input level of 200 to 240 VAC.
Procedure
Step 1
Check that the power switch is set to the OFF (0) position. The power switch is on the right of the power tray.
Step 2 Check that the circuit breaker assigned to the AC power source you are connecting is set to off.
Step 3 Verify that the permanent ground connection (central office grounding system) has been installed to the NEBS
grounding location on the chassis.
Warning
Step 4
Plug the AC power cord into the receptacle at the rear of the AC power tray.
Step 5 Tighten the screw that clamps the AC power cord plug in place.
Figure 102: Typical AC Power Connections to an AC Power Tray
Step 6 Plug the other end of the AC power cord into the AC source receptacle.
Step 7 Proceed to the
To ensure that power remains off while you are performing this procedure, lock-out/tag-out the
circuit breaker switch in the OFF (0) position until you are ready to turn it on.
Powering On the Chassis, on page
Connecting Power to an AC-Powered Chassis
191.
Hardware Installation Guide for Cisco NCS 4000 Series
185