ARM Electronics RDVR16A - Manual (Page 11)

10) POWER:
Connect to provided Adapter.
11) FAN:
For ventilation.
12) VIDEO INPUT (CHANNEL 1 - 16 / CHANNEL 1 - 8) :
Connect to video source, such as camera.
13) LOOP (CHANNEL 1 - 16 / CHANNEL 1 - 8):
Video output.
14) 75Ω / HI:
When using Loop function, please switch to HI. When you don’t use Loop
function, please switch to 75Ω.
15) MONITOR:
Connect to Main monitor.
16) AUDIO IN (1-4):
Connect to audio source, such as microphone.
4 audio inputs, but users can only select 1 for recording.
17) AUDIO OUT :
Connect to monitor or speaker.
With 2 mono audio outputs from the same source.
7