Installing An Ac Power Shelf; Removing The Dc Power Input Shelf - Cisco Carrier Routing System CRS-1 Installation Manual

Installing an AC Power Shelf

Figure 2-21

Removing the DC Power Input Shelf

Remove the DC Power Input Module (PIM)
Go to the rear of the chassis. Remove the DC power input module (PIM).
Step 10
a.
b.
c.
Figure 2-22

Installing an AC Power Shelf

This section describes how to install an AC power shelf in the Cisco CRS 4-slot line card chassis. The
power shelf encloses four power supplies and the power distribution connections and wiring. The AC
power shelf is installed in the front (PLIM) side of the chassis.
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis Installation Guide
2-24
With a Number 2 Phillips screwdriver, remove the first set of eight screws—six screws in the front
of the chassis, two on the outside right and left sides of the chassis (see
Remove the additional two screws underneath the chassis (one on the left side, one on the right side)
(see Figure 2-22).
With one hand gripping the handle and one hand underneath the module, carefully remove the PIM
from the chassis, then set it aside.
Removing the DC Power Input Module (PIM)
+
B 1
–
(RT N)
+
B 0
(-4 8V /-6
0V )
–
(RT N)
(-4 8V /-6
0V )
O N
SI DE B
B 1
B 0
Chapter 2 Installing and Removing Power Components
+
A 1
SI DE A
–
(RT N)
+
O N A 0
(-4 8V /-6
0V ) –
(RT N)
(-4 8V /-6
0V )
A 1
A 0
Figure 2-22).
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