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Overview

The AT-PWR10 is an AC redundant power supply for the AT-8400 Series switch. 
When installed, the unit operates in a standby mode. If the standard power supply 
fails or loses power, the AT-PWR10 unit changes from standby to active and 
provides all power to the system to prevent a network failure.

Note

The power supply is hot-swappable. You can install it without powering off 
the AT-8400 Series switch.

AT-PWR1

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Related Documents

The Allied Telesyn web site at www.alliedtelesyn.com contains the most recent 
documentation, software, and technical information on all of our products. For 
details on the features and functions of your Allied Telesyn AT-8400 Series switch 
and line cards, refer to the following manuals from our web site: 

AT-8400 Series Switch Reference Guide

PN 613-50399-00

AT-S60 Management Software User’s Guide

PN 613-50400-00

AT-S60 Command Line User’s Guide

PN 613-50401-00

Package Contents

Make sure the following items are included in the shipping package. If any item is 
missing or damaged, contact your Allied Telesyn sales representative for 
assistance.

One AT-PWR10 Redundant Power Supply (AC)

Installation Guide

Warranty Card

The AC power cord for this power supply comes with the AT-8400 chassis.

Note

To replace a power supply, refer to the 

AT-8400 Series Switch Reference Guide

 

for instructions on how to remove a power supply from the chassis.

Installing the AT-PWR10 Power Supply

Before installing a power supply, please note the following:

Refer to the 

AT-8400 Series Switch Reference Guide 

for

 

electrical safety and 

emission information.

The AT-PWR10 unit must be installed in an AC powered AT-8400 Series 
switch. This type of chassis has two AC power sockets on the back panel.

There may be several different models of AC power supplies for the 
AT-8400 Series switch. Each model is rated for a different power load. 
Both power supplies in an AT-8400 Series switch must be of the same 
model type. Do not mix power supplies with different power ratings in 
the same chassis.

To install the AT-PWR10 unit, follow these steps:

1.

Using a Phillips screwdriver, loosen the two captive screws that secure the 
power supply cover to the chassis and remove the cover. You remove the cover 
by angling it from the bottom as you slide it down and out of the chassis.

2.

Using a Phillips screwdriver, loosen the captive screw that secures the cover 
over the power supply PWR B slot and slide the cover from the chassis. 

Note

Store the cover in a safe place. You must reinstall it if you ever remove a power 
supply from the chassis without installing a new one. 

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LOOSEN

THUMBSCREW

!

AT-PWR10 

Redundant Power Supply (AC)

Installation Guide

Allied Telesyn, Inc.

960 Stewart Drive, Suite B
Sunnyvale, CA 94085 USA

Tel 1 (408) 730-0950 • Fax 1 (408) 736-0100

Visit our web site at: www.alliedtelesyn.com

PN 613-50394-00 Rev B

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