AT&T 3.1 manual Replacing System Modules

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5 A) To replace the cover, while holding the cover at an angle, gently move the top rear edge of the cover over the top of the control unit and match up the grooves where the top edge of the cover meets the backplane. Gently push the edge into place.

B)Lower the bottom of the cover until it is secured in place.

Replacing System Modules

1 A) To power down the control unit, pull out the main circuit breaker.

On a PARTNER Plus 220V system, move the on/off switch to the “off” position (“O”).

B)To remove the cover, place one hand on the handle on the bottom front of the cover and place your other hand on the top of the cover.

C)Gently pull the cover up from the bottom and tilt it towards the top until it detaches from the backplane.

2 A) Check the slack in the wires. If there is not enough slack to remove the module without pulling

the line and extension cords free, label and disconnect the wires before continuing with Step 2B.

B)Place one hand on top of the module. With your other hand, grip the plastic bracket on the bottom front of the module, and use your middle finger to hold down the locking tab just below the bracket. Pull out the old module.

C)To insert the replacement, hold down the locking tab and align the dovetail guides on the sides of the modules. Push slowly but firmly until

the module locks into place with two snaps, and is attached to the rear of the backplane and held in place by the locking tab. Do not force the module. If it does not insert easily, remove the module, clear any obstruction, and reinsert.

Main

Circuit Breaker

Power

Jack

Handle

Locking

Tab

Equipment Upgrades

19

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Contents AT&T Canadian Emissions Requirements Copyright 1993 AT&T All Rights Reserved Issue OctoberWarranty Federal Communications Commission FCC Interference NoticeContents Additional Safety Instructions for Installation Personnel Important Safety InstructionsOverview InstallationExtensions An Example System SetupControl Unit Control Unit Extensions Required Parts Required PartsTelephones and Devices Installation GuidelinesCombination Extensions Using a Bridging Adapter Using a Direct ConnectionInstalling the Control Unit and Modules Installation ProceduresMain Circuit Breaker Power Jack Lights Connecting Lines and Extensions Page Connecting Caller ID Display Units Desk Mounting Assembling System PhonesWall Mounting Phones with Fixed Stands Wall MountingWall Mounting Phones with Separate Stands Possibly damage the equipment Connecting and Testing TelephonesCall Reporting Smdr Printer Paging SystemMusic-on-Hold Audio Source For the Intercom Autodialer Connecting Intercom AutodialersAdding New Modules Equipment UpgradesReplacing System Modules Equipment Upgrades Specifications Smdr Output WiringExtension JackLocal Phone SafetyGovernment Approvals518-455-218 October