Mircom TX3-200-4U-C - Bottom Controller Board Connectors

Lobby Control Unit Setup
TX3 Telephone Access System Installation and Operation Manual 41
JW8. JW8 defines the operating state of the door strike relay as normally open or
normally closed. A jumper wire connects to either the normally open (position 2
- top) or normally closed pin (position 1 - bottom). The default setting is normally
open (position 2 - top).
JW9 and JW10. If there are problems with RS-485 communication, close both
JW9 and JW10 on either the first or last controller connected by RS-485. By
default these jumpers are open.
JW11: Leave open. This is the default setting.
4.2 Controller Board Connectors - Bottom
Figure 21 shows the connectors at the bottom of the Lobby Control Unit main
controller board.
Figure 21. Controller Board Connectors - Bottom
4.2.1 Microphone Connection
The microphone connection is situated at the bottom left of the main controller
board. It connects to the front display and is factory set.
LED/LAMP
Supply
Input 1
Input 3
Input 5
Camera Supply
Power Supply for TX
3
(use 18 AWG)
RS-485 OUT
+
+ −
RS-485 IN
s
+−
+−
+−
Speaker
Connection
−
White
Microphone
Connection
Red Black
+−
+−
Input 2 Input 4
Unused
Unused
Unused
Sheild
+−
+−
s+−