Wiring The Tx3-Nsl-8M Main Controller Board; Figure 34 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 34 shows the general layout of the TX3-NSL-8M Main Controller board
components.
TX3-NSL-8M Relay Control Unit
Figure 34.
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
66
telephones.
P6
JW2
TX3-NSL-8M Main Controller Board
NSL Relay Cabinet Installation and Wiring
Expansion Connectors
P5
Res.
Co.
SW2
P3
P1 P2
16V AC
JW1
IN
USB
TX3-NSL-8M Main Controller Board
P4
R
T
R
T
TS4
TS5
R
T
Telephone Line
from Lobby Panel
Main Controller
Board
ON OFF
SW1