LT-1201 Rev 3.1 http://www.mircom.com
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Installation Instructions for Replacement
MD-1243 and MD-1244 Microphone
This document applies to four kits:
•
RPL-MD-1243
and
RPL-MD-1244
: for non-Touch Screen models ending in -C, for
example TX3-1000-8U-C
•
RPL-MD-1243-TOUCH
and
RPL-MD-1244-TOUCH
: for Touch Screen models ending in
-C, for example TX3-TOUCH-F15-C
The microphones
MD-1243
and
MD-1244
are identical in terms of installation and wiring.
Each kit consists of the following parts:
•
replacement microphone circuit board with adhesive strips on flat side
•
wiring harness and terminal block
You will also need the following tools:
•
Screwdriver or a utility knife
•
A multimeter probe
To install the microphone, you must perform the following steps:
A. Shut down the unit and disconnect power
B. Remove the old microphone
C. Attach the new microphone to the door
D. Connect the wiring harness to the lobby controller board
Details on how to perform these steps are in the following pages.
A.
Shut down the unit and disconnect power
If you are installing the replacement microphone on TX3 Touch Screen, it is essential that you
follow the proper shut down procedure.
Shut down the TX3 Touch Screen
1. At the Touch Screen terminal, enter 9999.
2. Enter your administrator password, and then press
OK
.
3. Select
File > Shut down > Shut down
.
4. After the TX3 Configurator and Windows have finished shutting down, disconnect power
from the Touch Screen.
