Chapter 1: Overview

Fan Modules

The AT-CVFAN module, as shown in Figure 10, is designed for use with the AT-CV5000 chassis. You can install the same fan module in either fan slot labeled A or B, located at the rear of the AT-CV5000 chassis. For proper operation, two AT-CVFAN modules are preinstalled in the AT-CV5000 chassis.

Caution

The AT-CVFAN modules are field-replaceable; however, they are not hot-swappable. Therefore, make sure to power OFF the chassis before replacing the fan modules.

Note

The AT-CV5000 chassis operates correctly even with one faulty fan module. However, it will not operate correctly if one fan is missing because this changes the air flow.

AT-CVFAN

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Figure 10. AT-CVFAN Module

Figure 11 illustrates the locations of the two fan modules at the rear of the AT-CV5000 chassis.

REAR EXP. SLOT

A A

CVFAN-AT

100-240VAC~

WARNING

This unit might have more than one power input. To

 

reduce the risk of electric shock, disconnect all power

 

 

inputs before servicing unit.

Fan Slot A

B

B

 

WARNING

AT-CVFAN

This unit might have more than one power input. To

100-240VAC~

reduce the risk of electric shock, disconnect all power

inputs before servicing unit.

 

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Fan Slot B

Figure 11. Locations of Fan Slots A and B on an AT-CV5000 Rear Panel

To replace a fan module if one of the two AT-CVFAN modules failed, refer to “Replacing an AT-CVFAN Module” on page 86.

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Allied Telesis AT-CV5000 manual Fan Modules, 201