Cisco uBR10012 Universal Broadband Router UBR10-FAN-CAB= Specifications download pdf (Page 2)

Cisco uBR10012 Universal Broadband Router Fan Assembly Module

OL-5093-01

Scope

This document includes procedures for installing and removing the fan assembly module that comes with

the Cisco uBR10012 universal broadband router. This document also includes technical specifications

and troubleshooting information.

Contents

• Feature Overview, page 2

• Part Numbers and Technical Specifications, page 4

• Safety Warnings, page 5

• Removing and Replacing the Fan Assembly Module, page 9

• Replacing the Fan Assembly Cable, page 11

• Troubleshooting the Fan Assembly, page 13

• Related Documentation, page 14

• Obtaining Documentation, page 14

• Obtaining Technical Assistance, page 16

• Obtaining Additional Publications and Information, page 17

Feature Overview

The Cisco uBR10012 universal broadband router uses a fan assembly module (Figure 1 on page 3)

containing four fans to supply cooling air to the chassis.

The fan assembly is located at the top of the chassis and is connected to the chassis with a blind mate

connector that plugs into a cable assembly and then into the chassis backplane.

Four internal fans draw cooling air into the front of the chassis and direct it across the internal

components to maintain an acceptable operating temperature. The air is exhausted through openings in

the rear of the chassis.

The fan assembly module works at variable speeds:

• Low speed (with a clean air filter): approximately 280 cubic feet per minute (cmf)

• High speed (with a clean air filter): approximately 450 cmf

The operating speed is determined by the fan assembly module. If the temperature at the fan’s outlet gets

to 40°C, then the blower starts to increase the speed of the fans. It does not reach high speed, however,

until the temperature at the outlet reaches 50°C.

Three LEDs (System OK, Single Fan Failure, and Multi-Fan Failure) located on the front of the fan

assembly indicate the status of the fans (see Table 1 on page 3).

Figure 1 on page 3 shows the fan assembly module.

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Cisco uBR10012 Universal Broadband Router UBR10-FAN-CAB= Specifications Page 2