Allied Telesis X900 Series Bedienungsanleitung

A5 Quick Install Guide Cover

x900 Series Switch

Installation Guide

Removable Power Supply and Fan

AT-PWR01

AT-PWR02

AT-FAN01

C613-04057-00 REV D

Removable Power Supply and Fan

Removable Power Supply and Fan Installation Guide for the x900 Series Switch,

Document Number C613-04057-00 REV F

may be reproduced without prior written permission from Allied Telesis, Inc.

Allied Telesis, Inc. reserves the right to change specifications and other

information in this document without prior written notice. The information

provided herein is subject to change without notice. In no event shall Allied

Telesis, Inc. be liable for any incidental, special, indirect, or consequential

damages whatsoever, including but not limited to lost profits, arising out of or

related to this manual or the information contained herein, even if Allied Telesis,

Inc. has been advised of, known, or should have known, the possibility of such

damages.

All company names, logos, and product designs that are trademarks or

registered trademarks are the property of their respective owners.

Installation Guide

Contents

Models Covered by this Guide ...................................................................................... 4

Compatible Switches ....................................................................................................... 4

Package Contents ............................................................................................................. 4

Installing a Power Supply Unit ....................................................................................... 5

Applying Power to the Power Supply Unit ................................................................. 8

Checking LEDs .................................................................................................................. 9

Troubleshooting .............................................................................................................. 11

Where to Find More Information .............................................................................. 11

Standards .......................................................................................................................... 12

EC Declaration of Conformity .................................................................................... 13

Removable Power Supply and Fan

Models Covered by this Guide

This document describes how to install the following models:

■AT-PWR01 PSU, either AC or DC power supply unit

■AT-PWR02 PSU, AC power supply unit only

■AT-FAN01, fan-only module

Compatible Switches

The following table shows which models of PSUs and FOMs are appropriate for

individual switches.

Package Contents

Each switch is supplied with a single power supply unit (PSU), either AC or DC.

Depending on the model, the switch also has a fan-only module (FOM) or a

blanking panel.

■The AT-8948, AT-9924Ts, x900-24X, and AT-9924T/4SP switches have a

PSU and a FOM installed.

■The x900-48FE, AT-9924T, and AT-9924SP switches have a PSU and a

blanking panel installed.

The following items are included with each factory-installed PSU. Contact your

authorised distributor or reseller if any are damaged or missing.

■one AC power cord (AC model)

■one power cord retaining clip (AC model)

■one warranty card

Switch PWR01 PWR02 FAN01

AT-8948 and x900-48FE !!!

AT-9924T, AT-9924SP, AT-9924T/4SP !!!

AT-9924Ts and x900-24X !!

Installation Guide

The following items are included with PSUs purchased separately:

■one AC power cord (AC model)

■one power cord retaining clip (AC model)

■one Installation Guide

■one warranty card

The following items are included with each FOM purchased separately:

■one Installation Guide

■one warranty card

Installing a Power Supply Unit

Warning All AC and DC versions of this equipment must be earthed.

Do not install an AC PSU and a DC PSU in the same switch chassis.

If you remove a PSU or FOM from the switch, immediately replace it or cover

the bay with a blanking panel. This prevents dust and debris from entering the

chassis and maintains proper airflow in the switch.

AC power supply unit specifications

Important information for service personnel:

■CAUTION: double pole/neutral fusing

■the rating of fuses FH101 and FH102 is 250 V, 5 A (AT-PWR01 only)

DC supply cable and power supply specifications

■three-core cable is required

■minimum core size: 3.3 mm2(12 AWG) high strand count copper wire

■minimum cable rating: 600 V, 90 degrees Celsius

DC power supply specifications

■40 to 60 V, 48 V nominal

■supports either positive grounded or negative grounded operation

■a 15 Amp certified/listed circuit breaker is required for circuit protection

Removable Power Supply and Fan

Installing a power supply unit or fan-only module

Before you begin:

■Read the safety information for the switch.

Safety information is available in the Installation and Safety Guide that is on

the CD-ROM for the switch. Or you can download this document from

www.alliedtelesis.com/support/software.

■Gather necessary tools and equipment.

You may need a Phillips #2 screwdriver to adjust the retaining screws on a

PSU or FOM.

To install a DC version of the PSU, you need an appropriate DC power

source, DC supply cable, ring connectors, and a crimp tool.

■Verify the package contents if you have not already done so.

See “Package Contents” on page 4. Contact your authorised distributor or

reseller if items are damaged or missing.

1. Unpack the power supply unit.

Caution Follow correct anti-static procedures when installing either a PSU

or FOM. Failure to do so could damage the PSU, FOM, or switch. If you are

unsure about correct procedures, contact your authorised distributor or

reseller.

While observing Electro Static Discharge (ESD) precautions, remove the

PSU or FOM from its packing material in an anti-static environment.

2. Disconnect the power supply from the power supply unit.

Warning Disconnect the power cord before removing the PSU.

For AC models, turn off the main power supply to the PSU and disconnect

the power cord.

For DC models, push the Run/Standby control and release it to the Off

position using a small diameter pin. When the Run/Standby control is not

depressed, it is off. Disconnect the supply cable wires from the circuit

breaker.

3. For AC models only, install the power cord retaining clip.

There is one retaining clip for the AC power inlet on the PSU.

Installation Guide

4. Remove the current power supply unit, fan-only module, or blanking panel

from the switch.

Loosen the two captive Phillips screws until the they are fully loosened.

If a PSU or FOM is in the bay, slide it out slowly and carefully. Support the

device from underneath as you remove it to prevent it from falling.

When you have one PSU for AT-9924T and AT-9924SP models, it must be

installed in bay 2 to optimise cooling.

Caution Cover empty bays because dust and debris could overheat or

damage the PSU and switch.

5. Insert another power supply unit.

Caution Keep the PSU or FOM in straight alignment and insert it slowly.

Forcing a misaligned PSU or FOM is likely to damage both the chassis and

PSU or FOM.

Slowly and carefully slide the PSU or FOM into the power supply bay.

Firmly press the PSU or FOM until the faceplate engages, or nearly engages,

the chassis.

6. Secure the power supply unit.

Tighten the two captive Phillips screws on the faceplate of the PSU or FOM

(see figure in Step 4).

Captive screw

PSU

Switch

PSU2

Removable Power Supply and Fan

Applying Power to the Power Supply Unit

For an AC power supply unit

To apply power to the PSU, plug the AC power cord that is provided into the

power inlet on the faceplate of the PSU. Then connect the power cord to the

main power supply.

For a DC power supply unit

Only trained and qualified personnel should connect a DC power supply.

For centralised DC power connection, the switch should be installed in

restricted access areas only (such as dedicated equipment rooms or

equipment closets) in accordance with Articles 110-16, 110-17, and 110-18 of

the National Electrical Code, ANSI/NAPA 70.

Warning Ensure that the power cable is not live before starting.

1. Remove the transparent protective terminal cover.

2. Strip the supply cable wires to expose 7.5mm (0.31 in.) of bare conductor.

Terminate the wire with a nylon insulated solderless ring tongue terminal,

JST FN5.5-5 or equivalent, using a crimp tool.

3. Connect the ground wire to the ground terminal. Use the diagram on the

rear panel of the switch to identify terminals. Tighten the terminal to

between 2.4 and 4.0 Nm (21.3 and 35.4 lbf in).

Caution Check that the PSU terminals are wired to the correct polarity.

You will damage the PSU if you incorrectly connect it.

4. Connect the positive feed to the + (positive) terminal and the negative feed

to the - (negative) terminal. Tighten the terminals to between 2.4 and

4.0 Nm (21.3 and 35.4 lbf in).

Note that the DC return input terminal must be connected as Isolated DC

return(DC-I).

5. Ensure there are no exposed cable strands.

6. Replace the cover. You must replace the transparent plastic terminal cover

before continuing.

7. Secure the supply cable to the rack framework or a similar object to ensure

that connections are isolated from any force applied to the cable.

Installation Guide

8. Ensure the circuit breaker for the supply circuit and the Run/Standby

control on the PSU are off. Use a small diameter pin to press and release

the Run/Standby control so that it is not pushed in (which is the Off

position).

9. Connect the supply cable wires to the circuit breaker.

10. Turn on the PSU by pushing in the Run/Standby control with a small

diameter pin.

Checking LEDs

LEDs indicate the operational status on the faceplate of each PSU and on the

front panel of the switch.

After you have inserted the PSU and powered on the switch, check the LEDs for

correct operation by using the following tables.

Table 1: LEDs on the power supply unit and fan-only module

LED State Description

Fault Red The temperature of the PSU has exceeded the limit of

75º C (167ºF), or the FOM has failed.

PWR Green A PSU is installed in the switch and is receiving power.

FOMs do not have this LED.

Removable Power Supply and Fan

Table 2: LEDs on the switch reporting PSU status

LED State Description

PSU 1 Green PSU 1 is installed and supplying power to the switch. The

voltage output is within specification.

Red One of the following:

•PSU 1 is installed in the switch and has exceeded its

recommended temperature threshold of 75º C

(167º F), or the fan has failed.

•A FOM is installed in the switch and has failed.

•The bay is empty. Applies to AT-8948, AT-9924T/4SP,

and AT-9924Ts switches since they require a FOM

when only one PSU is installed.

•PSU 1 is not receiving power when dual PSUs have

been installed.

Off A FOM is installed and operating at an acceptable speed.

For AT-9924T and x900-48FE switches, a blanking panel

is installed.

PSU 2 Green PSU 2 is installed and supplying power to the switch. The

voltage output is within specification.

Red One of the following:

•PSU 2 is installed in the switch and has exceeded its

recommended temperature threshold of 75º C

(167º F), or the fan has failed.

•A FOM is installed in the switch and has failed.

•The bay is empty. Applies to AT-8948, AT-9924T/4SP,

and AT-9924Ts switches since they require a FOM

when only one PSU is installed.

•PSU 2 is not receiving power when dual PSUs have

been installed.

Off A FOM is installed and operating at an acceptable speed.

For x900-48FE switches, a blanking panel is installed.

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