Wiring The Tx3-Nsl-8M Main Controller Board; Figure 43 Tx3-Nsl-8M Main Controller Board - Mircom TX3 Series Installation And Operation Manual

5.3

Wiring the TX3-NSL-8M Main Controller Board

The TX3-NSL-8M NSL Main Controller Board has both ribbon cable sockets
and screw terminals.
Attention: High voltages are present on this board during the ringing of suite
Figure 43 shows the general layout of the TX3-NSL-8M Main Controller board
components.
TX3-NSL-8M Relay Control Unit
Figure 43. TX3-NSL-8M Main Controller Board
5.3.1 Connectors
USB. Computer connection for firmware download.
P1 and P2. Not used.
P3. Not used.
TX3 Telephone Access System Installation and Operation Manual
Version 5.4
LT-969 Copyright 2019
telephones.
P6
SW2
JW2
P1
NSL Relay Cabinet Installation and Wiring
Expansion Connectors
P4
R
P5
Res.
T
R
Co.
T
TS4
TS5
R
T
P3
P2
16V AC
JW1
IN
ON OFF
USB
TX3-NSL-8M Main Controller Board
Telephone Line
from Lobby Panel
Main Controller
Board
SW1
75