Allied Telesis AT-AR040 Installation And Safety Manual - Page 9
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8
If an NSM is already installed, disconnect all network cables and TNV lines
before removing the NSM from the switch or router.
Remove the NSM by unscrewing both captive screws at the same time. As the
captive screws are turned, they will push the NSM out of the bay.
If the NSM has extractor levers, moving them to the open position will assist
the removal process, as shown in the following figure.
When removing an NSM, take care to turn each captive screw by an equal
amount to ensure the NSM does not become misaligned. Forcing a jammed
captive screw may damage the NSM.
If a captive screw becomes tight, it must not be forced. Instead, screw it in or
out slightly to loosen it and then try again, taking care to unscrew both captive
screws at the same rate.
Keep the faceplate for future use. If you remove an NSM, replace the faceplate
to prevent dust and debris from entering the switch or router and to maintain
proper airflow.
5.
Prepare the NSM.
In an antistatic environment, remove the NSM from its packing material. Be
sure to observe ESD precautions.
Warning Do not attempt to install an NSM without observing correct
antistatic procedures. Failure to do so may damage the switch, router, or NSM.
If you are unsure what the correct procedures are, contact your authorised
Allied Telesis distributor or reseller.
613-000610 Rev B
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Network Service Module