Procedure A-2: Fan Unit Test Failure - Alcatel-Lucent 1675 LambdaUnite Installation And System Turn-Up Manual

Installation troubleshooting

Procedure A-2: Fan unit test failure

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Overview
The procedure described below should be performed if one of the following failures
can be observed:
• The "PWR ON" LED does not light up on the fan unit.
Procedure 1 must be used in this case.
• Not all fans are running.
Procedure 2 must be used in this case.
• The air flow direction is not from bottom to top.
Procedure 2 must be used in this case.
Procedure 1
Proceed as follows if the "PWR ON" LED does not light up on the fan unit:
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Switch all circuit breakers on the subrack backplane (see chapter 5,
1
switching" (p.
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Replace all affected fan power cables between the Power Interfaces and the fan unit.
2
Make sure that the cables are tight afterwards.
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Switch all circuit breakers on the subrack backplane to the ON position (="I").
3
IF ...
the "PWR ON" LED does not light
up on the fan unit,
the "PWR ON" LED lights up on
the fan unit,
E
N D O F
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A-4
5-5)) to the OFF position (="O").
S T E P S
Alcatel-Lucent - Proprietary
See notice on first page
THEN ...
switch all circuit breakers on the subrack
backplane to the OFF position (="O") and
replace the affected fan unit.
END OF STEPS
Figure 5-1, "PI/100
365-374-179R10.0
Issue 2, June 2009