Cisco Cisco Content Delivery Engine 220 Installation Guide

These warnings apply only to CDEs with the AC power option.

The device is designed to work with TN power systems. Statement 19

Connect the device to a grounded power outlet. Statement 25

These warnings apply only to CDEs with the DC power option.

When stranded wiring is required, use approved wiring terminations, such as closed-loop or 
spade-type with upturned lugs. These terminations should be the appropriate size for the wires and 
should clamp both the insulation and conductor. Statement 1002 

Before performing any procedures, ensure that power is removed from the DC circuit. Statement 1003

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring. Statement 
1022

Use copper conductors only. Statement 1025

When installing or replacing the unit, the ground connection must always be made first and 
disconnected last. Statement 1046

To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the 
following precautions:

Observe and follow service markings. Do not service any Cisco product except as explained in your 
system documentation. Opening or removing covers that are marked with the triangular symbol with 
a lightning bolt may expose you to electrical shock. Components inside these compartments should 
be serviced only by an authorized service technician.

If any of the following conditions occurs, unplug the product from the electrical outlet and replace 
the part or contact your authorized service provider:

Power cable or plug is damaged.

Object has fallen into the product.