3-10
Cisco Content Delivery Engine 205/220/250/280/285/420/460/475 Hardware Installation Guide
Chapter 3 Installing the Content Delivery Engines
Installing the CDEs
Warning
Before performing any of the following procedures, ensure that power is removed from the
AC/DC circuit.
Statement 1003
Step 2
Remove all cabling from the power supply. When removing a AC/DC power supply, you must also
remove the positive and negative nodes (see
).
Figure 3-7
Rear View of the DC Power Supply
Note
For additional information on DC power supplies, see the
“If DC Power Supplies Are Installed”
Note
The CDE220 has an additional grounding bracket for grounding both AC and DC power
supplies. See the
“Supplemental Grounding Connection” section on page 2-10
for instructions
on installing this bracket.
Step 3
Push the release tab on the back of the power supply (see
for a CDE205, CDE220 and
for a CDE420).
1
-48V
2
RTN
3
Grounding screws
4
Grounding wire
5
Status LED
251626
-48V
RTN
DC power source
-48V
RTN
3
4
5
1
2