HP FlexFabric 12908E LSXM108XFAN Bedienungsanleitung

HP FlexFabric 12908E LSXM108XFAN Fan Tray User Manual-APW100 BOM:3101A0JX Part Number:5998-7601

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Overview

The LSXM108XFAN fan tray (JH258A) applies to the 12908E switch. The 12908E switch

requires two fan trays and has two fan tray slots: FAN1 and FAN2. The LSXM108XFAN fan

tray contains three fans. When the fan tray is operating, ambient air flows in through the air

vents in the MPU and LPU/interface module adapter panels, circulates through the switching

fabric module section, and exhausts through the air vents in the fan tray.

Captive

screw

Handle

Switching fabric module

status LED

Fan

Panel side view Fan side view

Fan tray status LED

The fan tray is hot swappable. Follow these guidelines when you replace the fan tray on an

operating 12908E switch:

•Ensure electrical safety.

• Replace a fan tray only when the other fan tray is operating correctly.

• To avoid power-off protection of the switch caused by high temperature, finish installing a new fan

tray within three minutes after you remove the fan tray.

• When you hot-swap the fan tray, only one fan tray is operating and it makes large noise. Take

protection measures such as wearing an earmuff or earplug. In addition, make good preparation

before the operation to minimize the operation time.

Do not power on a switch that does not have any fan trays installed.

Before you install or replace a switching fabric module on an operating 12908E switch,

first remove the fan tray. Install the fan tray immediately after you finishing installing or

replacing the switching fabric module. Prepare in advance to make sure the whole

process is finished within 3 minutes.

For good ventilation, install filler panels in empty switching fabric module slots.

!

Tools required

Phillips screwdriver

ESD-preventive

wrist strap

To avoid device damage and bodily injury, use two people to install or remove the fan tray.

For good dissipation, you must install fan trays in both FAN1 and FAN2 slots. When a

fan tray fails, do not remove it until the new fan tray is ready. The device can operate

correctly if the failed fan tray is still in position.

!

Installing a fan tray

Before you install a fan tray, install switching fabric moduels or filler panels in the

switching fabric module slots.

The procedures are similar for installing a fan tray in FAN1 slot and FAN2 slot. To

install a fan tray in FAN1 slot, align the top and left edges of the fan tray in the slot.

To install a fan tray in FAN2 slot, align the top and right edges of the fan tray in the

slot.

!

Holding the upper fan tray handle with one hand and the lower fan tray handle with the

other hand, insert the fan tray into the slot. Keep the fan tray as straight as possible.

Fasten the captive screws on the fan tray.

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Orient the fan tray with the upside up and align the fan tray with the fan tray slot.

Wear an ESD wrist strap and make sure it makes good skin contact and is reliably

grounded.

Unpack the fan tray.

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Removing a fan tray

When you remove a fan tray, do not touch the rotating fans to avoid getting injured.

Before you replace a switching fabric module, remove the fan tray.

!

Loosen the captive screws on the fan tray.

Holding the upper fan tray handle with one hand and the lower fan tray handle with

the other hand, pull the fan tray outwards slowly until the fan tray is disengaged from

the chassis. Remove the fan tray after the fans stop rotating.

Place the fan tray on the anti-static mat.

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Wear an ESD wrist strap and make sure it makes good skin contact and is reliably

grounded.

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Prepare an anti-static mat.

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To find related documents, browse to the Manuals page of the HP Business

Support Center website:

http://www.hp.com/support/manuals

Documentation

5998-7601

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