Wiring The Tx3-Nsl-8M Main Controller Board; Figure 28. 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 28 shows the general layout of the TX3-NSL-8M Main Controller board
components.
TX3-NSL-8M Relay Control Unit

Figure 28. TX3-NSL-8M Main Controller Board

5.3.1 Connectors
USB. Computer connection for firmware download.
P3. Not used.
P4. Expansion to the NSL Controller back-plane.
P5. Expansion to the NSL Controller back-plane.
P6. Not used.
Telephone Access System Installation and Operation Manual
62 (112)
LT-969 Copyright 2012
telephones.
P6
SW2
1
JW3 JW4 JW2
TX3-NSL-8M Main Controller Board
NSL Relay Cabinet Installation and Wiring
Expansion Connectors
P4
R
P5
Res.
T
R
Co.
T
R
T
P3
8
JW1 JW5
16V AC
USB
IN ON OFF
SW1
Telephone Line
from Lobby Panel
Main Controller
Board
Version 1.6