Guard Phone Module; Figure 21.Guard Phone Module; Md-933 Jumper Settings - Mircom TX3 Series Installation And Operation Manual

For a description on how to install the MD-993 Module see the TX3-USB-AD
Kit Installation Instructions LT-6027.
Table 1:
Note:
4.6

Guard Phone Module

The TX3-GPM Guard Phone Module mounts above the TX3 Lobby Control Unit
main board on the top left hand side. See Figure 12.
The module has two connectors, an RJ-11 connector and a ribbon cable as shown
in Figure 21.
The TX3-GPM ribbon cable connects to the P7 connector on the TX3 Lobby
Control Unit main board. The guard phone uses a telephone cable to connect to
the RJ-11 connector.
For a description on how to install the modem board see the Guard Phone Manual
Installation Instructions LT-972.
Telephone Access System Installation and Operation Manual
48 (112)
LT-969 Copyright 2012

MD-933 Jumper Settings

Mode
No termination
AC termination 120R + 1nF
No termination
DC termination 120R (Factory Default)
For the main application of the MD-993 JW1 and JW2 should
remain in the on position.

Figure 21.Guard Phone Module

Lobby Control Unit Setup
JW1
Off
On
Off
On
RJ-11
Connector
GPM Ribbon Cable
JW2
Off
Off
On
On
Version 1.6