Replacing the CCU MDF | BT BT Versatility manual

BT Versatility

Installation and maintenance Manual

Replacing the CCU MDF

This PCB is NOT hot swappable. The System must be powered down to change this board

ESD precautions must be made when replacing this board. Connect to the ESD pillar on the CCU MDF before removing the CCU cover

The procedure to be used when replacing the CCU MDF unit is:

1.Power the system down by unplugging it at the mains.

2.If a battery is installed turn off the BBU switch to disconnect the battery.

3.Remove any voice or network modules installed.

4.Remove the MDF Cabling making sure to tag the cabling so they can be readily reinstalled

5.Open the CCU main cover by opening the four-quarter turn screws indicated in the first diagram below.

6.Remove the 008 PCB

7.Remove the retaining screw in the MDF PCB

8.Remove the MDF PCB

9.Reverse the above procedure to install a new MDF PCB

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Image 45

BT BT Versatility manual Replacing the CCU MDF

Contents

BT Versatility Contents General overview Introduction Safety Precautions during installation and system upgrades Electrostatic precaution ESPLightning and surge voltage protection BT Versatility Pro. PlusIncludes System, VM, 1M,2V8 Maintenance items Installation checklist CCU LocationCCU Installing the Central Control UnitMounting the CCU Wall mount bracket CCU Mounting bracket clearances CCU Mounting BracketCCU Bracket + Backplane Bracket 300mm min Module location Modules located in the CCU Installing the Backplane wall bracket System ExpansionMounting the CCU with two brackets Mounting screw hole Mounting the Backplane Expansion Modules Push up to lock Installing an Expansion module Analogue line module Installing the Analogue Module in the CCUAnalogue Module Remove the cover Locate the Module First network module To Locate the Analogue Module in the Ports Module Installing the Basic Rate Isdn Module in the CCU Basic Rate Isdn expansion moduleDigital Line Module Isdn First network module Second Module. Can be external T or internal S To Locate the Digital Line Module Isdn 2 in the Ports module System Isdn settings T0 interface terminationS0 interface termination Back up Voice Module voice messages and Greetings Voicemail module Primary Rate Interface Availability TBC Battery charger connector on the PSU Connecting the battery backup unit to the system Led Indicators Connecting the Battery V16 Featurephone connections underside of phone Featurephone V8 Featurephone connections underside of phone Position at 35 degrees Attaching the Featurephone desk plinth V8 To connect the V16 Console to a Featurephone V16 only Feature phone with consoleV16 expansion console Expansion console Clip, Plinth and installation of the V16 expansion console Line cord rails Wall-mounting a Featurephone Door Intercom Wall hook when the V8/V16 is wall mounted Connecting the extensions Cabling the unitCabling Break outs Speech Pin Data Connecting a MOH Music On Hold Module CCU connectionsDoor Intercom Doorstrike Connecting a PC or Printer to the Serial Port Connecting a PA public Address amplifierPorts Module MDF Connections MOH Module contains Internet Module MDF Connections Central Bell Options Module MDF ConnectionsExternal Extension Cable limitations Installing an additional Network Analogue or Isdn module Installing additional modulesExpanding an Existing system Hot Swapping faulty modules Maintenance procedures Replacing a faulty Module MDF Replacing the 008 extension board Replacing Faulty PCBs Replacing the CCU Control PCB Power supply unit spare fuse Spare Fuse Replacing the Power Supply Unit Replacing the CCU MDF Power fail AnalogueLine position Power up and test Switch onCommissioning Programming Equipped exchange linesIncoming ringing Call Barring Internet Module Programming Installation Wizard Adsl Isdn Recommendations for customer training Troubleshooting 230 ± 10% V 50 Hz Technical specification LAN Full remote support from a BT Maintenance Centre Index Offices Worldwide