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Quick Install Guide

C613-04020-01 REV H

Hot Swap Installation Method:

The following PICs can be hot swapped if they are to be installed or removed

from an AR040 NSM, and the AR040 is installed in a switch or router running

Software Release 2.3.1 or later:

•

AT-AR021 (S) BRI- S/T

•

AT-AR021 (U) BRI-U

•

AT-AR023 SYN

WARNING: Failure to follow this procedure when hot swapping a PIC will

cause the router to crash, and may damage files stored in FLASH.

Gather the tools and equipment you will need

A medium-sized flat-bladed screwdriver may be useful when loosening

PIC thumbscrews.

You should also have any cables required for connecting the PIC to a wide

area network or other network devices.

Prepare the PIC bay for hot swap

If the In Use LED (next to the NSM bay) is lit, use a pencil tip or similar

object to press the recessed Hot Swap button. The In Use LED should go

out and the Swap LED should light.

If the In Use LED remains lit or if neither the In Use or Swap LED are lit,

the software release does not support hot swapping, and the Standard

Installation Method must be used to install or remove the PIC.

Do not attempt to hot swap while the contents of FLASH are being modified;

for instance, during FLASH compaction or when files are being loaded onto the

switch or router. If the switch or router crashes while FLASH is being modified,

configuration files, software release files, feature licences and other files may be

damaged.

Remove the PIC-bay face-plate, NSM PIC-bay face-plate, or existing PIC

Loosen the thumbscrews to remove the face-plate or PIC.

Keep the face-plate for future use. If you remove the PIC, replace the face-plate to prevent

dust and debris from entering the switch or router and to maintain proper airflow.

Unpack the PIC

In an antistatic environment, remove the PIC from its packing material. Be

sure to observe ESD precautions.

Do not attempt to install a PIC or any other expansion option without

observing correct antistatic procedures. Failure to do so may damage the switch

or router, PIC, or expansion option. If you are unsure what the correct

procedures are, contact your authorised Allied Telesyn distributor or reseller.