Allied Telesis AT-PWR01 User manual

Installation Guide
Removable Power Supply and Fan
AT-PWR01
AT-PWR02
AT-PWR05
AT-FAN01
AT-FAN03

Removable Power Supply and Fan
Installation Guide
AT-PWR01
AT-PWR02
AT-PWR05
AT-FAN01
AT-FAN03
Download the complete document set from
www.alliedtelesis.com/support/software

Removable Power Supply and Fan
2
Removable Power Supply and Fan Installation Guide
Document Number C613-04057-00 REV M
© 2008 Allied Telesis, Inc. All rights reserved. No part of this publication 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.
Allied Telesis, AlliedWare, AlliedWare Plus, and SwitchBlade are trademarks or
registered trademarks in the United States and elsewhere of Allied Telesis, Inc.
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Microsoft and Visio are either registered trademarks or trademarks of Microsoft
Corporation in the United States and/or other countries. Additional brands,
names and products mentioned herein may be trademarks of their respective
companies.

Installation Guide
3
Contents
About this Guide .............................................................................................................. 4
Compatible Switches ....................................................................................................... 4
Package Contents ............................................................................................................. 5
Installing a Power Supply Unit or Fan .......................................................................... 6
Connecting an AC power supply .................................................................................. 9
Connecting a DC power supply .................................................................................. 11
Checking LEDs ................................................................................................................ 12
Removing a Power Supply Unit or Fan ...................................................................... 15
Troubleshooting .............................................................................................................. 18
Obtaining Documentation and Resources ............................................................... 19
Standards .......................................................................................................................... 21
EC Declaration of Conformity .................................................................................... 22

Removable Power Supply and Fan
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About this Guide
This Installation Guide describes how to install the following PSUs and fans:
■AT-PWR01 PSU, either AC or DC power supply unit
■AT-PWR02 PSU, AC only
■AT-PWR05 PSU, AC only
■AT-FAN01, fan-only module
■AT-FAN03, chassis fan module
Compatible Switches
The following table shows which models of PSUs and fans are appropriate for
individual switches.
You can download complete documentation for these switches from
www.alliedtelesis.com/support/software. For more information about the
documentation and other resources, see “Obtaining Documentation and
Resources” on page 19.
Switch PWR01 PWR02 PWR05 FAN01 FAN03
AT-8 948 99
x900-48FE 99
x900-48FS 99
AT-9924T 99
AT-9924SP 99
AT-9924Ts 99
x900-24XT 99
x900-24XT-N 99
x900-24XS 99
SwitchBlade®x908 99

Installation Guide
5
Package Contents
Depending on the model, switches are shipped with a single supply unit (PSU),
either AC or DC. Some models also have fan-only modules (FOM), chassis fan
modules, or blanking plates.
■The AT-8948, AT-9924Ts, x900-24XT, x900-24XT-N, and x900-24XS
switches have a PSU and a FOM installed.
■The x900-48FE, x900-48FS, AT-9924T, and AT-9924SP switches have a PSU
and a blanking plate installed.
■The SwitchBlade®x908 is shipped with dual chassis fan modules and
blanking plates, but no PSUs.
The following items are included with each factory-installed PSU. Contact your
authorised Allied Telesis distributor or reseller if any are damaged or missing.
■one AC power cord (AC models)
■one power cord retaining clip (AC models)
■one warranty card
The following items are included with PSUs when purchased separately:
■one AC power cord (AC models)
■one power cord retaining clip (PWR01 and PWR02 AC models only)
■one clip-on ferrite core (PWR05 only)
■this Installation Guide
■one warranty card
The following items are included with fans when purchased separately:
■this Installation Guide
■one warranty card

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Installing a Power Supply Unit or Fan
Use these instructions to install PSUs, chassis fan modules and FOMs.
■Do not combine PWR01 and PWR02 PSUs in the same switch.
■For the x900-24XT and x900-24XS running AlliedWare Plus Operating
System you may combine AC and DC PSUs in the same switch. Do not
combine AC and DC PSUs in the same switch for any other models.
Caution When combining AC and DC PSUs in the same switch, take special
care, to avoid earth loops between the AC and DC power supply systems. If
you are unsure about correct procedures, contact your authorised Allied
Telesis distributor or reseller.
Before you begin
■Read the safety information for the switch.
Safety information is in the x900 Series Switch and SwitchBlade®x908
Installation and Safety Guide. You can download this document from
www.alliedtelesis.com/support/software.
■Gather necessary tools and equipment.
You will need an appropriate flat-bladed or Phillips (#1) screwdriver to tighten
or loosen the captive screws.
■Verify the package contents if you have not already done so.
See “Package Contents” on page 5. Contact your authorised Allied Telesis
distributor or reseller if items are damaged or missing.
■Remove the unit from its packing material in an anti-static environment.
Caution Follow correct anti-static procedures. Failure to do so could
damage the PSU, fan, or switch. If you are unsure about correct procedures,
contact your authorised Allied Telesis distributor or reseller.
Caution When adding or replacing power supplies, keep your hands and
fingers out of the power supply bays. After installing a PWR05 power supply,
use a screwdriver to tighten the captive screw such that a screwdriver will be
required to remove the PSU at a later date.

Installation Guide
7
Installing a PWR01, PWR02, or FAN01
1. If there is a PSU, fan or blanking plate in the bay you wish to install the unit,
first remove the old unit, following the steps described in section
“Removing a Power Supply Unit or Fan” on page 15.
2. Insert the new PSU or fan unit, and carefully slide it into the bay.
Insert it slowly, being sure to keep it straight. Firmly press the unit until the
faceplate engages, or nearly engages, the chassis. Forcing a misaligned unit
into the bay is likely to damage both the unit and chassis.
Note that when you have only one PSU installed in the AT-9924T and
AT-9924SP switches, it must be installed in bay 2 to optimise cooling.
3. Secure the unit in the switch by tightening the captive screws on the
faceplate.
Captive screw
Captive screw
PSU
Switch

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Installing a PWR05 or FAN03
1. If there is a PSU, fan or blanking plate in the bay you wish to install the unit,
first remove the old unit, following the steps described in section
“Removing a Power Supply Unit or Fan” on page 15.
2. Insert the new PSU or chassis fan module, and carefully slide it into the bay.
If you are installing a PSU, unlock the latch on the PSU first by loosening the
captive screw.
Insert the PSU or fan module slowly, being sure to keep it straight. Firmly
press the unit until the faceplate engages, or nearly engages, the chassis.
Forcing a misaligned unit into the bay may damage both the unit and chassis.
3. Secure the unit in the switch by tightening the captive screw(s) on the
faceplate. On the PWR05, use a screwdriver to tighten the captive screw
such that a screwdriver will be required to remove the PSU at a later date.
Captive screw
PSU bays
PSU
Captive screw
Chassis fan
Service
access
panels

Installation Guide
9
Connecting an AC power supply
Follow these instructions to connect an AT-PWR01, AT-PWR02, or AT-PWR05
AC PSU to an AC power supply:
Warning The AT-PWR01 AC PSU has a fuse rating of 250V, 5A for FH101 and
FH102.
Warning The AT-PWR01 AC PSU has double pole/neutral fusing. Electric
shock is possible since there are dual primary fuses, one on the phase circuit and
one on the neutral circuit. If the neutral opens, the phase may still be live.
Warning For SwitchBlade x908 AC models the grounding stud on the rear of
the unit is for supplemental grounding only. The system must be supplied by a
grounded 3 wire AC source through the power supply cord.
Connecting a PWR01 or PWR02
1. Plug the supplied AC power cord into the power inlet on the PSU and
attach the retaining clip.
2. Connect the power cord to the main power source.
3. The PSU LED on the front panel of the switch lights green. If the LED does
not light, refer to the Hardware Reference for troubleshooting information.
Connecting a PWR05 The DC earthing connection is not necessary for
the SwitchBlade x908 when using AC PSUs because the chassis is grounded
through the power cords.
1. Form a loop in the supplied AC power cord at the PSU end and clip the
ferrite core over the looped cord, as shown in the following illustration.
This keeps the ferrite core in its correct position, close to the PSU.

Removable Power Supply and Fan
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2. Plug the AC power cord into the power inlet on the PSU.
3. Connect the power cord to the main power source.
4. Check that the Run/Standby switch is set to the Run position (1). Both the
AC and DC LEDs should be lit.
Note that when the Run/Standby switch is set to the Standby position (O),
the AC LED lights and the fan spins, but the DC LED does not light and the
PSU does not deliver power to the device.
5. The PSU LED on the front panel of the switch lights green. If the LED does
not light green, check the Run/Standby switch. See the Hardware Reference
for more troubleshooting information.
Looped power cord
Ferrite core
AC
IN
LED
RUN/STANDBY
SWITCH
CAPTIVE
SCREW
DC
OUT
LED
FAULT
LED

Installation Guide
11
Connecting a DC power supply
Follow these instructions to connect an AT-PWR01 DC PSU to a DC power
supply. Only trained and qualified personnel should connect a DC power supply.
You need an appropriate DC power source, DC supply cable, ring connectors, a
crimp tool and an appropriate screwdriver to tighten the terminal screws.
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/NFPA 70.
Power supply specifications:
■40 to 60V, 48V nominal
■supports either positive grounded or negative grounded operation
■a 15Amp certified/listed circuit breaker is required for circuit protection
Supply cable specifications:
■three-core cable is required
■minimum core size: 3.3mm2(12 AWG) high strand count copper wire
■minimum cable rating: 600V, 90 degrees C
Warning Disconnect the power supply cable before starting this procedure.
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
4.0Nm (21.3 and 35.4 lbf in).
Note that the DC return input terminal must be connected as an Isolated
DC return (DC-I).

Removable Power Supply and Fan
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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.
8. Ensure the circuit breaker for the supply circuit and the Run/Standby switch
on the PSU are off. Press and release the Run/Standby switch 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 switch.
11. Confirm that the switch is receiving power.
Check that at least one of the PSU LEDs on the front panel of the switch is
lit green. If no LEDs light, refer to the Hardware Reference for
troubleshooting information.
Checking LEDs
LEDs on PSUs, fans, and the front panels of switches indicate the operational
status of the devices. After you have installed a PSU or fan and have powered on
the switch, check the LEDs to verify operation by using the following tables.
PWR01
PWR02
The following table describes LEDs on the PWR01 and PWR02 power supply
units.
LED State Description
FAULT Red The temperature on the PSU has exceeded the limit of
75º C (167º F), or the fan failed.
PWR
GOOD
Green A PSU is installed in the switch and is delivering power.

Installation Guide
13
PWR05 The following table describes LEDs on the PWR05 power supply unit.
FAN01 The following table describes LEDs on the FAN01 fan-only module.
FAN03 The following table describes LEDs on the FAN03 chassis fan module.
LED State Description
~
IN
Green AC input voltage is within 90-264VAC, 47-63Hz.
Off AC input voltage is outside the acceptable range.
OUT
Green AC output voltage is within 12V +/- 10%.
Off AC output voltage is outside the acceptable range.
FAULT
Red A fault has occurred. There is either a fan failure, or the
temperature has exceeded its limit of 70ºC (158ºF).
Off No fault conditions detected.
LED State Description
FAULT Red The fan has failed.
LED State Description
FAN
STATUS
Red The fan has failed.

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Switch The following table describes how LEDs on the switch report operations and
faults with installed PSUs and FOMs.
LED State Description
PSU 1
and
PSU 2
Green The PSU is installed and supplying power to the switch.
The voltage output is within specification.
Red One of the following:
The PSU is installed in the switch, and a fan has
failed or the PSU has exceeded its recommended
temperature threshold of 70ºC (158º F).
A FOM is installed in the switch and a fan has failed.
Note that the x900-12XT/S and SwitchBlade x908
switches do not support FOMs.
The bay is empty. Applies to AT-8948, AT-9924Ts,
x900-24XT, x900-24XT-N, and x900-24XS
switches which require a FOM when only one PSU
is installed.
Dual PSUs are installed, but the PSU is not
receiving power.
Off One of the following:
A FOM is installed and operating at an acceptable
speed. Applies to AT-9924T, x900-48FE, and
x900-48FS.
On SwitchBlade x908 switches there is no power
supply in this bay.

Installation Guide
15
Removing a Power Supply Unit or Fan
Follow these instructions to remove a PSU, chassis fan module, FOM or blanking
plate.
Before you begin
■Read the safety information for the switch.
Safety information is in the x900 Series Switch and SwitchBlade®x908
Installation and Safety Guide. You can download this document from
www.alliedtelesis.com/support/software.
■Gather necessary tools and equipment.
You will need an appropriate flat-bladed or Phillips (#1) screwdriver to
tighten or loosen the captive screws.
Caution Follow correct anti-static procedures. Failure to do so could
damage the PSU, fan, or switch. If you are unsure about correct procedures,
contact your authorised Allied Telesis distributor or reseller.
Caution Keep your hands and fingers out of the power supply bays.
To remove a PSU, chassis fan module or FOM
1. If you are removing a PSU, disconnect the power supply.
For AC PSUs, turn off the main power source to the PSU and disconnect
the power cord.
For DC PSUs, push and release the Run/Standby switch to the Standby (off)
position using a small pin. The Run/Standby switch is in the Run (on)
position when it is depressed, and in the Standby (off) position when it is
not depressed. Disconnect the supply cable wires from the circuit breaker.
2. Using a screwdriver, loosen the captive screws until fully loosened.
The following is a diagram of PWR01, PWR02 or FAN01

Removable Power Supply and Fan
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The following is a diagram of PWR05 and FAN03
3. Remove the PSU, chassis fan module, FOM or the blanking plate from the
switch.
Slide the unit out slowly and carefully. Support the unit from underneath as
you remove it, to prevent it from falling.
4. For all units, with the exception of FAN03, cover empty bays with a
blanking plate, to prevent dust and debris from overheating or damaging the
switch.
Captive screw
Captive screw
PSU
Switch
Captive screw
PSU bays
PSU
Captive screw
Chassis fan
Service
access
panels

Installation Guide
17
Avoid the spinning blades on FAN03. Contact may cause personal injury or
damage the unit.
Do not operate the switch for extended periods without functioning
chassis fan modules. Doing so will cause the switch to overheat and shut
down, and may damage the switch.

Removable Power Supply and Fan
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Troubleshooting
If the PSU does not function as expected:
■Check that all cable connections are correct and secure.
■On the PWR01 DC model, check that the Run/Standby switch has been
pressed and is in the On position.
■On the PWR05, check that the Run/Standby switch has been set to Run
(position 1).
■Check that the PSU is receiving the correct AC voltage (AC models).
■Check that the PSU is receiving the correct DC voltage (DC models).
■If LEDs indicate a PSU fault, replace the PSU or have your authorised Allied
Telesis distributor or reseller service it.
Troubleshooting information is also in the x900 Series Switch and
SwitchBlade®x908 Hardware Reference. You can download this document from
www.alliedtelesis.com/support/software.

Installation Guide
19
Obtaining Documentation and Resources
The complete document set for x900 Series switches and SwitchBlade x908
includes:
■this Installation Guide
■the x900 Series Switch and SwitchBlade®x908 Installation and Safety Guide,
which describes how to install the switch and includes important safety and
statutory information
■the x900 Series Switch and SwitchBlade®x908 Hardware Reference, which
contains detailed information on x900 Series and SwitchBlade x908 switches
and their hardware features
■the x900 Series Switch and SwitchBlade®x908 Expansion Module Installation
Guide, which describes how to install expansion modules in x900 Series and
SwitchBlade x908 switches
■the AT-9900s Series Switch Expansion Module Installation Guide, which
describes how to install expansion modules in AT-9900s Series switches
■the x900 Series Switch AlliedWare
®
Operating System Software Reference , which
contains detailed information on configuring switches running the
AlliedWare operating system
■the AlliedWare Plus™ Operating System Software Reference , which contains
detailed information on configuring switches running the AlliedWare Plus
operating system
You can download these documents and updates from
www.alliedtelesis.com/support/software.
You need Adobe®Acrobat®Reader®software to view, search, or print these
documents. You can download it from www.adobe.com.
Other resources
How-To Notes describe a range of standard Allied Telesis solutions, and include
technical tips and guides to configuring specific hardware and software features.
You can download the latest How-To Notes from
www.alliedtelesis.com/resources/literature/howto.aspx.
MIBs supported by Allied Telesis products can be downloaded from
www.alliedtelesis.com/support/software.
Microsoft®Visio®stencils for Allied Telesis products can be downloaded from
www.alliedtelesis.com/resources/images/visio.aspx.