Installing And Upgrading Internal Modules; Locating The Internal Modules In The Router; Opening And Removing The Chassis Cover - HP MSR20-1X Series Installation Manual

Installing and upgrading internal modules

This chapter describes how to install and upgrade internal modules.
The MSR20- 1 x Router Series has one type of internal module: Voice processing module (VPM)
NOTE:
The barcode stuck on the router chassis contains information about production and servicing. Before you
•
return a faulty router for serving, please provide the barcode information of the router to your local sales
agent.
An HP tamper-proof label is stuck on a mounting screw on the router chassis. The local sales agent
•
requires intactness of the tamper-proof label when maintaining the router. Therefore, before you open
the chassis cover, please contact your local sales agent to ask for permission or follow the instruction as
provided by the agent; otherwise, the user takes full responsibility for own operation if any maintenance
failure occurs.

Locating the internal modules in the router

Opening and removing the chassis cover

WARNING!
To avoid bodily injuries and device damages, make sure that all power sources to the router are
•
disconnected before maintaining any hardware modules of the router.
When maintaining the router hardware, always wear an ESD-preventive wrist strap and ensure good
•
skin contact.
To open the MSR20- 1 x router chassis cover:
Make sure that the power source of the router is turned off, and the power cords and network
1.
cables have been unplugged.
Put the router on a flat workbench, and use a Philips screwdriver to remove the fastening screws on
2.
both sides of the router.
Insert a flat-blade screwdriver into the key holes on both sides of the chassis, and gently pry the
3.
cover until the cover is separated from the chassis.
Pull the chassis cover backward until it is completely separated from the chassis. Keep the chassis
4.
cover.
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