Figure 76 Lobby Controller Board Connectors On Md-1245 - Bottom - Mircom TX3 Series Installation Manual

Figure 76 shows the connectors at the bottom of MD-1245, the lobby controller
that has a 4-pin terminal block for the microphone. This board is present in
models ending in -C and -D, and also in TX3-TOUCH-S15B-WR and
TX3-TOUCH-S15S-WR.
86 TX3 Touch Screen Installation Manual
Input 3
−
Input 2
Speaker
− +
Connection
+ −
Unused
Unused
Unused
− +
Input 1
White Red Black
Microphone
Connection
Figure 76. Lobby controller board connectors on MD-1245 -
bottom
RS-485 OUT
+ − s +
LED/LAMP
Input 4 Supply
− +
− +
Input 5
Camera Supply
− s +
RS-485 IN
Touch Screen System and Setup
+ −
Power Supply for TX3
− +