Multi-function AV Distribution System
8
⑦
FROM TOUHSCREEN:
Type-A USB port to connect a touch screen device (e.g.
Smart Board) to transmit USB signal back to the Host PC. The port also can be
connected to an interactive projector to achieve on-line handwriting annotation, but
it can’t be synchronized to the Host PC.
⑧
IR OUT:
3.5mm mini jack to connect IR emitter to control the display device.
⑨
RS232:
3-pin terminal block to connect the display device (e.g. Projector) for
RS232 control.
⑩
REMOTE MUTE:
3-pin terminal block to connect the fire alarm system. When the
fire alarm signal input, the audio output will be set to mute.
⑪
LINE OUT:
3-pin terminal block to connect an audio broadcast device to output
HDMI embedded audio and MIC audio in mixed mode. In additional, the port can
be connected to a sound recorder for sound recording.
⑫
LINE/MIC Level Selector Switch:
When the switch turns to “
MIC
”, the microphone input is connected to dynamic
microphone. There are two different connections:
1) Unbalanced connection:
“╧” connects to ground, and “-” connects to signal.
2) Balanced connection:
“+” connects to positive, “-” connects to negative and “╧” connects to ground.
When the switch turns to “LINE”, the microphone input is connected to normal
or wireless microphone. There are two different connections:
1) Unbalanced connection:
“╧” connects to ground, and “-” connects to signal.
2) Balanced connection:
“+” connects to positive, “-” connects to negative and “╧” connects to ground.
⑬
MIC:
3-pin terminal block to connect wireless microphone and compatible with MIC
and LINE audio. When connect PC or other audio input device besides
microphone, only “-”and “
” pins need to be used.
⑭
2x20Watt@4Ω:
4-pin terminal block to connect speakers for audio mixing output.
⑮
DC 24V:
Power port for power adapter connection.
