Cisco XR 12410 - Manual (Page 47)

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Cisco XR 12410 and Cisco XR 12810 Router Installation Guide
OL-17441-01
Chapter 1 Product Overview
Horizontal Cable Management Bracket
Blower Module
The blower module contains three variable speed fans and a controller card. The
two front cover LEDs provide a visual indication of blower module status
(
Figure 1-17 ):
Figure 1-17 Blower Module
• OK (green)—All three fans are operating normally.
• FAIL (red)—The system has detected a fan failure or other fault in the blower
module. The fault can be caused by any of the following:
– One or more fans are not operating
– One or more fans are running below speed
– A controller card fault
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LEDs