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Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation Guide
OL-13208-11
Chapter 14 Removing and Replacing FRUs from the Cisco ASR 1000 Series Routers
Removing and Replacing the Cisco ASR 1013 Router Power Supplies
Replacing the DC Power Supply in Cisco ASR 1013 Router
Note
The color coding of the DC input power supply leads depends on the color coding of the DC power
source at your site. Typically, green or green/yellow is used for ground (GND), black is used for –48 V
on negative (–) terminal and red is used for RTN on the positive (+) terminal. Make certain the lead color
coding you choose for the DC input power supply matches lead color coding used at the DC power
source.
Warning
When you install the unit, the ground connection must always be made first and disconnected last.
Statement 1046
To install the DC power supply, follow these steps:
Step 1
Grasp the DC power supply by the two handles and carefully slide it into the chassis. Make sure you
align the rear connector to the backplane until it is fully seated.
Step 2
Tighten the captive screws on the power supply.
Step 3
Make certain that the chassis ground is connected before you begin installing the DC power supply.
Step 4
Locate the ground stud on the DC power supply for the
GND
connection which must be installed first
and follow these steps:
a.
Using the grounding lug, replace the washers and Kepnut screw in the following order.
–
Flat washer
–
Grounding cable lug
–
Kepnut screw
b.
Tighten the Kepnut screws (use the screwdriver to tighten the ground screw to a torque of
20+/–2 in-lbs / 2 per.) on the power supply ground studs.
Step 5
Attach the other end of the ground cable to the site ground associated to the DC power supply system
that you are working on.
Step 6
Remove the plastic cover from the terminal block if it is still on.
Caution
Before you continue to install the terminal block ground wires, stop and perform Step 7. This is to
prevent any contact between the metal power lugs and plastic cover.
Step 7
You must wrap the positive and negative power cables with sleeving. Take each wire and cover the area
from the lug to the wire with heavy shrink sleeving as pointed out in callout 3 (see
Figure 14-73
).
Step 8
For easier cable-management, insert the positive cable first. Replace the ground lug with cable in the
following order as shown in:
a.
Flat Washer
b.
Ground lug with positive wire
c.
Kepnut screw