32
Figure 13 Cisco ASR 1013 Router DC Power Supply Terminal Block Cable Connections
OUTPUT INPUT FAN
FAIL OK OK
ALARMS
60V
1A MAX
This unit might have more than one power supply connection. All connections must be removed to de-energize the unit.
-48/-60V 40A
253913
1 2
4
3
1
Negative lead
3
Protective sleeving around the stud and cable
2
Positive lead
4
Earth ground stud and cable
Step 7 Follo
w the same procedure from step 6 and remove the negative cable (Figure 12, callout 1) in the same order.
Step 8 Repeat the followi
ng step for the ground cable.
Warning
When removing the unit, the ground connection must always be made first and disconnected last.
Step 9 Loosen the four captive screws on the DC power supply.
Note Four power supplies must be installed in the chassis at all times, with a minimum of two power supplies (one 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.
Caution If you remove a power supply from a system that has four power supplies that are connected and powered on, the
system can run only for a maximum of five minutes before shutting down. However, because the fans and power
elements are independent within the power supply, the replacement power supply does not have to be energized
within five minutes. The only requirement is that the power supply be installed in the chassis in order to energize
the fans and maintain proper system cooling.
Step 10 Grasping the power supply handles, pull the power supply from the chassis.
Step 11 Replace the
DC power supply within five minutes.
This completes the procedure of removing a DC power supply from the Cisco ASR 1013 Router.
Replace the DC Power Supply
For instructions to replace the DC power supply in the Cisco ASR 1013 Router, go to Connect DC Power to the Cisco ASR 1013
Router, page 15.
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