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【
Side
】
①
Scene mode adjustment switch:
Three scene modes are available:
1. Noisy
（
to the front)
2. Standard
（
in the middle
）
3. Quiet
（
to the back)
Standard is the default mode.
【
connection wiring
】
①
Power interface: connect with 12V/1.5A power.
②
Network interface: insert the cable to the switch.
③
Analog audio output interface: output analog audio, connect to DVR or IP camera.
④
External window intercom interface.
