HOW TO USE THIS PUBLlCATlON
This publication provides a guide to the installation and checkout of the 2120 communicating device transponder
(CDT).
Be sure that you understand the information in the 2120 Multiplex System Installation manual before reading
!his guide.
DOCUMENTS YOU WILL NEED DURING THE INSTALLATION AND CHECKOUT
‘!eu will need the system-supplied documents listed below to install and check out a CDT. The 2120 Multiplex
System Installation manual (MUX2-21-003) describes the method of interpreting equipment drawings.
8) System interconnect drawings for the communications channeis, any audio and telephone risers, and all
powering.
e CDT equipment cabinet drawings showing component locations and external (contractor) connections.
8 M-2120-CDT wiring diagrams.
Consult your Simplex Representative if you do not receive the proper system documentation.
CDT: AN OVERVIEW
The communicating device transponder (CDT) is a 2120 system component that is connected to the BMUX via
a 2120 communications channel (see Figure 1).
FOR CLARITY)
SHIELDED PAIR
MONITOR
I----- POINTS
CONTROL
POINTS
MONITOR
POINTS
I
JUNCTION
1ZOVAC
I
120 VAC
TO OTHER 2120
TRANSPONDERS
CDT
MAPNET’” TO/FROM
ADDRESSABLE DEVICES
( rTEll20 VAC
A 2120 System with CDT
FIGURE 1
MAPNETTM is protected by U.S. Patent No. 4.796.025.
2
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