Fan Trays - Cisco ASR 9000 series Reference Manual

Cooling System Functional Description

Fan Trays

The ASR 9010 Router contains two fan trays
failure condition, it is possible to swap a single fan tray assembly while the system is operational. Fan
tray removal does not require removal of any cables.
The fan tray contains 12 axial 120-mm (4.72-in) fans. There is a fan control board at the back end of
each tray with a single power/data connector that connects with the backplane.
The fan tray aligns through two guide pins inside the chassis, and is secured by two captive screws. The
controller board floats within the fan tray to allow for alignment tolerances.
A finger guard is adjacent to the front of most of the fans to keep fingers away from spinning fan blades
during removal of the fan tray.
Maximum weight of the fan tray is 13.82 lb (6.29 kg).
Figure 2-26
1
The ASR 9006 Router contains two fan trays
failure condition, it is possible to swap a single fan tray assembly while the system is operational. Fan
tray removal does not require removal of any cables.
For the ASR 9006 Router, both fan trays are required for normal system operation. If one of the two fan
Note
trays is pulled out or is not installed, a critical alarm is raised.
The fan tray contains six axial 92-mm (3.62-in) fans. There is a fan control board at the back end of each
tray with a single power/data connector that connects with the backplane
The fan tray aligns through two guide pins inside the chassis, and is secured by one captive screw. The
controller board floats within the fan tray to allow for alignment tolerances.
A finger guard is adjacent to the front of most of the fans to keep fingers away from spinning fan blades
during removal of the fan tray.
Maximum weight of the fan tray is 39.7 lbs (18.0 kg).
Cisco ASR 9000 Aggregation Services Router Overview and Reference Guide
2-32
D R A F T — C I S C O C O N F I D E N T I A L
ASR 9010 Router Fan Tray
1 Fan Tray Status LED
(Figure 2-26) for redundancy. In the event of a fan tray
(Figure 2-27) for redundancy. In the event of a fan tray
Chapter 2 Functional Description
OL-17501-01