Lobby Control Unit Wiring; Figure 19 Lobby Control Unit Wiring - Mircom TX3 Series Installation And Operation Manual

3.7

Lobby Control Unit Wiring

All units use the PS-4P transformer for the power supply. All wiring is a
maximum length of 1000 ft. The door strike power supply depends on the door
strike power requirements.
Figure 19 shows a typical wiring arrangement for the Lobby Control Unit.
1 2 3
4 5 6
7 8 9
* 0 # i
Figure 19.
Note:
TX3 Telephone Access System Installation and Operation Manual
Line1
Expansion
cables
T/R
Power
transformer
16VAC/40VA
PS-4 or PS-4P
Lobby Control Unit Wiring
Install all transformers outside the Lobby Control Unit enclosure.
2008/16
NSL Expander
Unit
9106/
9406
Cables
TX3-NSL-8M
NSL Control
Unit
Electrical room
T/R T/R
Power
transformer
AC or DC Door 16VAC/40VA
strike supply PS-4 or PS-4P
TX3 System
CA-71A
Or
RJ-71C
Blocks
Resident's
Telephone
Telephone
company
Power
transformer
120 VAC
60HZ
37