Multiple Lobby Control Units; Figure 20 Many Lobby Control Units To One Line - Mircom TX3 Series Installation And Operation Manual

3.5

Multiple Lobby Control Units

Figure 20 shows a configuration of many Lobby Control Units to one phone line.
The phone can be either a dedicated phone line from the phone company or an
NSL phone line from the NSL Control Unit.
Line1
1 2 3
4 5 6
7 8 9
* 0 # i
Lobby
control
unit 1
Figure 20. Many Lobby Control Units to One Line
Telephone Access System Installation and Operation Manual
Version 3.7
LT-969 Copyright January 2017
Telephone outlet
Central office line
OR
T/R
Line1 Line1
1 2 3 1 2 3
4 5 6 4 5 6
7 8 9 7 8 9
* 0 # i * 0 # i
Lobby Lobby
control control
unit 2 unit 3
NSL
Control
Unit
T/R
Line1
1 2 3
4 5 6
7 8 9
* 0 # i
Lobby
control
unit 4
TX3 System
Line1
1 2 3
4 5 6
7 8 9
* 0 # i
Lobby
control
unit 5
43 (119)