Removing And Replacing Dc Power Entry Modules; Connecting Alarm Indicators - Cisco Universal Broadband Router uBR10012 Hardware Installation Manual
Cisco systems universal broadband router hardware installation guide
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Also See for Universal Broadband Router Cisco uBR10012:
- Software configuration manual (240 pages) ,
- Hardware installation manual (98 pages) ,
- Troubleshooting manual (86 pages)
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Chapter 5
Maintaining the Cisco uBR10012 Router
If the failure LEDs—SINGLE FAN FAILURE and MULTIPLE FAN FAILURE—are illuminated,
remove and reinsert the fan assembly module. If the failure LEDs are still illuminated, replace the fan
assembly module. The fan assembly module supports hot-swapping and can be replaced without
interrupting system operation.
For more information about removing and replacing the fan assembly module, see
Universal Broadband Router Fan Assembly
Removing and Replacing DC Power Entry Modules
The Cisco uBR10012 router is shipped with two DC power entry modules (PEM) that provide a
redundant power supply to the system. One DC PEM can provide sufficient power for a fully configured
chassis, so that if one DC PEM fails, the other automatically begins providing power for the entire
system. However, the system should not be run for an extended period time with only one DC PEM. If
a DC PEM fails, install a replacement DC PEM as soon as possible.
You do not need to shut down the Cisco uBR10012 router to replace a redundant DC PEM. And, if you
Note
are replacing both DC PEMs, you can replace one, bring it online, and then replace the other one to avoid
shutting down the entire system.
The DC PEM is operating correctly when its POWER LED lights (green). Replace a DC PEM if either
of the PEM failure LEDs light (yellow):
•
•
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Warning
To ensure that all power is OFF, locate the circuit breaker on the panel board that services the DC
circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit
breaker in the OFF position. Statement 7
For more information on removing and replacing the DC PEM module, see
the Cisco uBR10012 Universal Broadband
For more information on removing and replacing the 3300 W DC PEM, see
Module for the Cisco uBR10012 Universal Broadband Router.
Connecting Alarm Indicators
The Cisco uBR10012 router provides relay contacts for optional (customer-supplied) audible or visual
alarm indicators. Relay contacts are provided for three levels of severity:
•
•
•
OL-18259-09
MISWIRE—This LED indicates that the wires connecting the PEM to DC power source were wired
incorrectly. The DC PEM therefore needs to be removed so that the wiring can be corrected. After
the wiring has been corrected, the same DC PEM can be reinserted. See
Indicators" section on page 5-7
FAULT—This LED indicates that the DC power source is supplying power but that the DC PEM is
not providing power to the system.ced.
Minor—This is an informational alarm and does not affect the system operation.
Major—A condition that affects system operation and should be investigated as soon as possible.
Critical—A condition that affects system operation and requires immediate attention.
Module.
for more information.
Router.
Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
Removing and Replacing DC Power Entry Modules
Cisco uBR10012
"Connecting Alarm
DC Power Entry Module for
3300 W DC Power Entry
5-7
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Table of Contents
Troubleshooting
