Cisco uBR10012 Universal Broadband Router UBR10-FAN-CAB= Specifications download pdf (Page 13)

Cisco uBR10012 Universal Broadband Router Fan Assembly Module

OL-5093-01

Step 1 Verify which connector goes in the bracket in the back of the chassis and which connector goes into the

front connector.

Step 2 Bend the cable in a “U” shape at both ends, to facilitate getting the cable into the rear bracket. See

Figure 4 on page 12.

Tip Use the existing cable as a template.

Step 3 Install the cable in the rear bracket.

Step 4 Make sure that the cable lays flat on the enclosure bottom so as not to restrict the movement of the cable

assembly as it is pushed back into the chassis.

Step 5 Connect the cable with the front connector.

Step 6 Slide the fan assembly module back into the chassis. The module should slide smoothly back into the

chassis without interference with the cable.

Tip If the fan assembly module does not slide easily into the chassis, remove the module and check

the location of the cable. The cable should lay flat along the bottom of the fan assembly

enclosure.

Troubleshooting the Fan Assembly

Check the following to help isolate a problem with the cooling system:

• When you start up the system, do the fans start operating?

When the fans are operating, you should be able to hear them. You should also be able to feel air

being drawn in at the bottom front and expelled at the top rear of the chassis.

–

If no, there is a problem with the fan or power. See the Cisco uBR10012 Series Hardware

Installation Guide, Troubleshooting the Power Subsystem, at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ubr10012/hig/u10ktrb.htm

–

If yes, continue with the next step.

• Is the System OK LED on the fan assembly module on (green) and are the other two LEDs (Single

Fan Failure and Multiple Fan Failure) off?

–

If yes, the system is operating normally.

–

If no, remove the fan assembly module and reinsert it. If this does not help, examine the LED

that is on. The Single Fan Failure LED indicates that one fan of the four has failed, but that the

system is still able to adequately cool the chassis; repair or replace the fan assembly module as

soon as possible. The Multiple Fan Failure LED indicates that more than one fan has failed, and

that the fan assembly module is no longer able to adequately cool the Cisco uBR10012 series

chassis. Replace the fan assembly module as soon as possible.

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Cisco uBR10012 Universal Broadband Router UBR10-FAN-CAB= Specifications Page 13