4. Locate the ground stud on the DC power supply for the GND connection which must be installed first
and follow these steps:
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.
6. Remove the plastic cover from the terminal block if it is still on.
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 xref fig).
8. For easier cable-management, insert the positive cable first. Replace the ground lug with cable in the
following order as shown in:
9. Tighten the Kepnut screw (use the screwdriver to tighten the ground screw in the terminal block to a
torque of 20+/–2 in-lbs / 2 per.) and repeat the same steps for the negative wires.
10. Use tie wraps to secure the wires, so that the wires are not pulled from the terminal block by casual
contact. Ti-wrap studs are located below the power supply terminal block.
11. Replace the terminal block plastic cover, which is slotted and keyed to fit correctly over the terminal
block; then tighten the black screw (use the screwdriver to tighten the screw to a torque of 5 in-lbs / 1
per.).
12. Remove the tape from the circuit-breaker On/Off switch (if there was any).
13. Switch the circuit breaker On/Off switch to the On (|) position.
DETAILED 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.
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.
Caution
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 xref fig).
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
Removing and Replacing FRUs from the Cisco ASR 1000 Series Routers
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Removing and Replacing FRUs from the Cisco ASR 1000 Series Routers
Replacing the DC Power Supply in Cisco ASR 1013 Router