Four M6 hex bolts attaching shelf grounding bracket to
power shelves (Step 3)
7
Shelf grounding bracket (Step 3)
3
Two M6 hex bolts attaching grounding L-bracket to
chassis (Step 5)
4
A 45-degree grounding lug is shown in the previous figure. A 180-degree (straight) grounding lug can also be
used.
Note
Step 3
Using a 10 mm socket wrench, loosen the four M6 hex bolts that attach the grounding bracket to the power shelves. Do
not fully remove.
Step 4
Use a 10 mm socket wrench to remove the two M6 hex bolts that attach the grounding L-bracket to the chassis.
Step 5
Remove the two M6 hex nuts that attach the grounding L-bracket to the shelf grounding bracket.
Step 6
Remove the grounding L-bracket.
Step 7
Remove the four M6 hex bolts that attach the shelf grounding bracket to the power shelves.
Step 8
Remove the shelf grounding bracket from the power shelves.
Step 9
If the chassis is being replaced, use the 10-mm socket wrench to remove the ground cable from the grounding point on
top of the chassis rear (MSC) side panel.
Do not remove the chassis ground cable unless the chassis is being replaced.
Caution
What to do next
After the power shelf grounding brackets have been removed, the power shelf can be removed from the chassis.
See
Removing a Modular Configuration Power Shelf
.
Installing AC or DC Power Shelf Wiring
This section describes how to connect the DC input wiring to the rear of the power shelf and install the DC
terminal block covers and AC cords on the LCC. For complete information on regulatory compliance and
safety, see
Regulatory Compliance and Safety Information for the Cisco CRS Carrier Routing System
.
Installing Modular Configuration DC Power Shelf Wiring
This section describes how to connect the DC input wiring to the rear of the power shelf and install the DC
terminal block covers on the LCC.
This figure shows the cable wiring for the modular configuration power shelf.
Installing and Removing Power Components
58
Installing and Removing Power Components
Installing AC or DC Power Shelf Wiring
