Allied Telesis AT-9900s Series Installation and operating manual

A5 Quick Install Guide Cover
AT-8900, AT-9900, AT-9900s Switches
Installation and Safety Guide
AT-8948
AT-9924T
AT-9924SP
AT-9924T/4SP
AT-9924Ts
C613-04052-00 REV B

AT-8900, AT-9900, AT-9900s Series Switches
2
Installation and Safety Guide for AT-8900, AT-9900, AT-9900s Switches
Document Number C613-04052-00 REV B
© 2003-2005 Allied Telesyn Inc. All rights reserved. No part of this publication
may be reproduced without prior written permission from Allied Telesyn Inc.
Allied Telesyn 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
Telesyn 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 Telesyn
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 and Safety Guide
3
Contents
Models Covered by this Guide ...................................................................................... 4
Package Contents ............................................................................................................. 4
Selecting a Site ................................................................................................................... 5
Installing the Switch ......................................................................................................... 6
Applying Power to the Switch ....................................................................................... 9
Connecting the Switch .................................................................................................. 11
Checking LEDs ................................................................................................................ 12
Documentation CD ....................................................................................................... 14
Standards .......................................................................................................................... 15
Electrical Safety Statements ......................................................................................... 16
Safety ................................................................................................................................. 17
Sicherheit .......................................................................................................................... 18
Sikkerhed .......................................................................................................................... 20
Veiligheid ........................................................................................................................... 22
Sécurité ............................................................................................................................. 24
Turvallisuus ....................................................................................................................... 26
Norme di Sicurezza ........................................................................................................ 28
Sikkerhet ........................................................................................................................... 30
Segurança .......................................................................................................................... 32
Seguridad .......................................................................................................................... 34
Säkerhet ............................................................................................................................ 36
EC Declaration of Conformity .................................................................................... 38

AT-8900, AT-9900, AT-9900s Series Switches
4
Models Covered by this Guide
This document includes information about the following models:
■AT-8948
■AT-9924T
■AT-9924SP
■AT-9924T/4SP
■AT-9924Ts
You can download updates to this guide from www.alliedtelesyn.com
Package Contents
Depending on the switch model, one or more of the following is factory-fitted:
■power supply unit (PSU), AT-PWR01 either AC or DC, or AT-PWR02 AC
■fan-only module (FOM), AT-FAN01
■blanking plate
The following items are shipped with each switch. 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 cable for connecting the switch to a terminal or PC
■one 19-inch rack-mount kit
■one Installation and Safety Guide
■one CD-ROM with complete documentation and utilities
■one warranty card

Installation and Safety Guide
5
Selecting a Site
You can install the switch in the following ways:
■in a standard 19-inch rack (see “Installing the Switch” on page 6)
■on a level surface such as a desktop or bench
When you install the switch, choose a site as follows:
■for AT-8900 and AT-9900 switches, one that maintains an ambient
temperature from 0º C to 50º C (32º F to 122º F)
for AT-9900s switches, one that maintains an ambient temperature from 0º C
to 40º C (32º F to 104º F)
■allows adequate airflow around the switch and its vents
■is free of dust and moisture
■maintains humidity from 5% to 80% non-condensing
■has a reliable and earthed (grounded) power supply, preferably dedicated and
filtered
■does not expose cabling to sources of electrical noise such as radio
transmitters, broadband amplifiers, power lines, electric motors, and
fluorescent fixtures
■permits easy access to the switch’s power and cable connections
■allows related network devices to be connected to the switch without
exceeding maximum cable lengths specified in the Hardware Reference
■ensures that the switch is mounted evenly in the rack to prevent uneven
mechanical loading of the rack

AT-8900, AT-9900, AT-9900s Series Switches
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Installing the Switch
The switch is heavier at the rear than at the front. Therefore, we recommend
that you use the supplied 19-inch rack-mount kit to fully support the switch in a
rack.Using this kit is essential if the front mounting flange on the rack is easily
bent, or the switch is installed in areas subject to shocks such as earth tremors
or heavy vibrations.
Before you begin
■Read the safety information.
For your well-being and that of the equipment, read the safety information in
this document. You can also download this document from the
Documentation and Tools CD-ROM or from www.alliedtelesyn.com
■Verify the package contents if you have not already done so.
See “Package Contents” on page 4. If any items are damaged or missing,
contact your authorised distributor or reseller.
■Gather necessary tools and equipment.
You need a Phillips #2 screwdriver to adjust the retaining screws on the
power supply unit (PSU) or fan-only module (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.
■Choose a suitable operating location.
Follow the guidelines described in “Selecting a Site” on page 5 to choose a
suitable location.
■Decide whether two people are needed to mount the switch into the rack
and tighten the screws (step 7).
■If you have an optional expansion module for the AT-9900s Series switch,
install it in the switch first.
Refer to the Expansion Module Installation Guide for the AT-9900s Series Switch
for details.
Warning Both AC and DC versions of this equipment must be earthed.

Installation and Safety Guide
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Installing the switch using the 19-inch rack-mount kit
1. Ensure the rack has sufficient space for the switch and its cables.
2. If necessary, install cage nuts at the front and rear of the rack.
3. Unpack the switch and remove the rubber feet.
4. Screw the front brackets to the sides of the switch using the M4 screws
that are supplied (see figure below).
5. Measure the depth of the rack to determine the correct position to attach
the rear brackets to the switch.
6. Screw the right rear and left rear brackets to the sides of the switch using
the M4 screws that are supplied.
7. Mount the switch into the rack from the front, and attach it to the rack
using rack mounting screws.
Two people may be required to safely support the switch until the brackets
are screwed to the rack.
RMOUNT3a

AT-8900, AT-9900, AT-9900s Series Switches
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8. Fit the adjustable bracket extensions onto the rear brackets but do not
tighten the nuts (see figures below).
RMOUNT4a
Adjustable bracket
extension
RMOUNT5a
Adjustable bracket
extension

Installation and Safety Guide
9
The adjustable bracket extensions are rotationally symmetrical when
attached to the rear brackets. When viewed from the rear of the switch,
the flanges on the bracket extensions are at the bottom on the right and at
the top on the left. This allows adequate clearance when a power supply
unit or fan-only module is removed from the switch.
9. Attach the adjustable bracket extensions to the rack using rack mounting
screws.
10. Tighten the nuts that secure the adjustable bracket extensions to the rear
brackets.
11. Check that all screws and nuts are fully tightened.
Applying Power to the Switch
The switch has two bays in the rear. Your switch comes with one pre-installed
power supply unit (PSU). Depending on the model, the switch also has one
fan-only module (FOM) or one blanking panel over a power supply bay,
AC power supply
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)
Procedure for AC power supply
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.
DC supply cable and power supply
Supply cable 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 C
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

AT-8900, AT-9900, AT-9900s Series Switches
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Procedure for DC power supply
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 supply 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. A
PSU will be damaged if incorrectly connected.
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).
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
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.
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.