Cisco UBR10012 Quick Start Manual page 7

Fan Assembly Module (UBR10-FAN-ASSY=)
This fan assembly module has four internal fans that draw cooling air into the front of the chassis and
direct it across the internal components. The air is exhausted through the openings in the rear of the
chassis (see
Low speed (with a clean air filter)
•
High speed (with a clean air filter)
•
The temperature of the fan module at the module air outlet determines the operating speed. Three LEDs
(FAN OK, SINGLE FAN FAIL, and MULTI FAN FAIL) indicate the status of the fan assembly.
Figure 3
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Fan assembly module
Fan Assembly Module (UBR10012-FAN-PLUS=)
This fan assembly has nine internal fans that draw cooling air into the front of the chassis and directs it
across the internal components (see
Increased cooling capability
•
Higher redundancy in case of a failure
•
Repositioned thermal sensor that detects the ambient temperature of the cable plant or facility and
•
adjusts the variable fan speeds to maintain the temperature
OL-24972-01
Figure 3). The fan assembly module works at two speeds:
Fan Assembly Module (UBR10-FAN-ASSY=)
CIS CO
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CIS CO
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Figure
Cisco uBR10012 Series Universal Broadband Router–Quick Start Guide
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4). This fan assembly module provides:
Overview
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