Cisco ASR 1013 Hardware Installation Manual page 596

Removing and Replacing a DC Power Supply in Cisco ASR 1004 Router
The following figure shows the DC power supply terminal block with lead wires connected.
Figure 276: Cisco ASR 1004 Router DC Power Supply Terminal Block Lead Wire Connection
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2
3
Step 5
Locate the power supply ground stud (see xref fig). Remove the ground (GND) cable from the DC power supply.
Step 6 Loosen and remove the Kepnut screw, washer, and ground lug in that order.
When installing the unit, the ground connection must always be made first and disconnected
Warning
last.
Step 7 Loosen the captive screws on the DC power supply.
Four power supplies must be installed in the chassis at all times, with a minimum of two power supplies (one
Note
per zone) connected to the mains in order to power on the system and ensure sufficient cooling. The system
fans are inside the power supply units and must spin for cooling. Because all the system fans can be powered
by one power supply, the second power supply unit does not have to be powered on, but must be connected.
Cisco ASR 1000 Series Router Hardware Installation Guide
562
Removing and Replacing FRUs from the Cisco ASR 1000 Series Routers
Ground stud and wire
Ground lug nut
Ground symbol
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5
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Flat washer
Kepnut screw
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