4
1.2.3 Schematic diagram of Infrared conference system main unit
1) Power switch (Press I to turn on the power, power indicator is lighting, press O to turn
off the power)
2) LCD (Display current mode, online microphone number, activity microphone number
and ID)
3) Admin card interface
4) Menu: system volume/LCD contrast/project setting
5) Mode choose/setting key
6) Mode choose/setting key
7) Enter: To confirm the setting
8) Data Communication: Data communication indicator, if main unit data communication
properly, the blue LED will flashing rhythmically.
9) Audio Level indicator
10) Antenna interface
11) Data: External video processor connection interface
12) Audio out interface
13) System line out interface
14) AF IN A: Receiver connection interface
15) AF IN B: Receiver connection interface
16) Fuse (0.5A)
17) AC Power input (AC110~220V 50~60Hz)