Mircom LT-978 RB-MD-955 TX3-ER-8 Installation guide

LT-978 Rev 0

September 2009

Model RB-MD-955

Replacement TX3-ER-8 Board

Installation Instructions

RB-MD-955 Mounting

Unscrew the six screws that hold the existing board in place. Disconnect the two ribbon cables from controller board

and remove the controller board. Replace with new board RB-MD-955, connect the two cables and use the six screws

to mount the replacement board in place.

Figure 1: RB-MD-955 TX3-ER-8 Board Replacement

TX3-ER-8

Elevator Restriction Unit

Remove the controller board

by unscrewing the six screws

which hold the board in

place. Disconnect the two

ribbon cables. Place the

RB-MD-955 Replacement

TX3-ER-8 Controller board in

its position and fasten the six

screws to hold in place.

Re-connect the two ribbon

cables.

Six mount-

ing screws

hold the

board in

place.

Ribbon cables

RELAY CABINET