54
COMPACT VOICE ALARM SYSTEM
SERVICE MANUAL
6.2.5 ABT-M01 Microphone
The ABT-M01 microphone is an aordable fully analog device. It is equipped with a built in gong generated onboard the device,
accessible through the switch on the back panel. The gong as well as the microphone itself has an individual volume control
knob also placed on the back panel of the device. To operate the device press the MIC ON button, the status LED will switch to
steady green light. In the event of an active built in gong, the status LED will turn green once the gong has ended. When nished
transmitting the message release the MIC ON button to deactivate the gooseneck mic.
Drawing 29. ABT-M01 main control placement
1. MIC ON button
2. Dynamic goose neck microphone
3. Gong volume knob
4. Gong ON / OFF switch
5. RJ45 output connector
6. MIC volume (gain) knob
Drawing 30.
GND
OUT
PTT
POW
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Microphone Connector pinout