Installing/Removing A Fan Tray; Installing A Fan Tray - NEC QX-S5500G Series Installation Manual

Installation Guide
QX-S5500G Series Ethernet Switches

3.5 Installing/removing a fan tray

CAUTION:
Install two fan trays of the same model on the switch. Do not power on the switch when it does not have fan
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trays or has only one fan tray installed.
Make sure slots are installed with fan trays or blank filler panels for the device to operate.
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At the first login to the QX-S5524GT-4X1C, QX-S5548GT-4X1C or QX-S5524GP-4X1C, use the fan
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prefer-direction command to set the airflow direction of the switch to be the same as the airflow direction
of the fan tray. If the fan tray has a different airflow direction than the switch, the system outputs traps and
logs to notify you to replace the fan tray.
By default, the switch uses the same airflow direction (power-to-port) as the LSPM5FANSA fan tray.
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If both fan trays fail during operation, replace them immediately. One fan trays don't make switch move,
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please while breaking down.
Please don't remove a broken fan module until exchange preparations of a fan trays can be done.
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If fan trays fail during operation, replace them within 2 minutes while the switch is operating. Please don't
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make switch move in the state which has no fan trays for more than 2 minutes.
Failure to comply with these operating requirements may void the warranty.
The QX-S5524GT-4X1C, QX-S5548GT-4X1C or QX-S5524GP-4X1C switches support
hot-swappable fan trays.
The switch comes with empty fan tray slots. Choose the fan tray models based on the
ventilation requirement of the site. The air flow direction varies by fan tray model.
The LSPM5FANSA has a blue handle and provides power-to-port air flow.
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The LSPM5FANSB has a red handle and provides port-to-power air flow.
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3.5.1 Installing a fan tray

CAUTION:
To prevent damage to the fan tray or the connectors on the backplane, insert the fan tray gently. If you
encounter a hard resistance while inserting the fan tray, pull out the fan tray and insert it again.
To install a fan tray:
1) Wear an ESD wrist strap and make sure it makes good skin contact and is correctly
grounded.
2) Unpack the fan tray and verify that the fan tray model is correct.
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3. Installing the switch