16
INPUT CONNECTORS
GPI/GPO external contact close connector:
1. GND.
2. Command microphone UP connecting to GND. Connecting to GND
more than 2 seconds, activates the AHlink signal (5 beeps sounds when
the AHlink signal is activated)
3. Command microphone DOWN connecting to GND.
- Use a pulse signal to RISE and LOWER the microphone
4. Red LED ring brights connecting to GND (only in conference mode)
5. Green LED ring brights connecting to GND (only in conference mode)
6. GND.
7, 8 GPO1. Contact close of the central button located on cover plate
9, 10 GPO2. Contact close of the Talk button located on cover plate
SERVICE: USB only for service
12V D.C.: Power supply input connector. XLR-4 connector:
1,2: Ground
3,4: 12Vdc
