Dual Lobby Control Units; Figure 7. Single Entrance System Wiring - Mircom TX3 Series Installation And Operation Manual

Figure 7 shows the various inputs to the panels.
Electrical room
INPUTS
Fire panel Main Door
over-ride Sense
1 pair
22 AWG
1 pair
22 AWG
1 pair
22 AWG
General General
purpose purpose
input 2
Electrical room
Figure 7.
3.3

Dual Lobby Control Units

Figure 8 shows a dual entry application for either an NSL type or ADC
connection type. The phone line from either the NSL control unit or an ADC
dedicated phone line is shared by both Lobby Control Units.
The Lobby Control Unit senses whether the line in use. If one of the Lobby
Control Units is in use and the user tries to make a call, the other lobby indicates
that the line is in use.
Version 1.6 Telephone Access System Installation and Operation Manual
LT-969 Copyright 2012
Telephone outlet
OR
Central office line
T/R
Line1
Postal
Lock
1 pair
22 AWG
1 2 3
4 5 6
7 8 9
* 0 #
Lobby
Control Unit
1 pair
22 AWG
input 1
18 AWG
Power
transformer
16VAC/40VA
PS-4 or PS-4P
Single Entrance System Wiring
NSL
Control
Unit
T/R
1 pair
Door
Telephone
Strike AC
wire
or DC
1 pair
18 AWG
1 pair
18 AWG
i
1 pair
18 AWG
3 wires
22 AWG
General
purpose output
form C relay
contacts 2
18 AWG
Power
transformer
AC or DC Door
strike supply
120 VAC
TX3 System
OUTPUTS
General
purpose output
Aux Door
form C relay
Form C relay
contacts 1
contact
3 wires
22 AWG
1 pair
18 AWG
LED lamp
12 VDC/0.5A
Supply (only
Aux power
for paper
directory)
60HZ
31 (112)