Pin definition of audio in / audio out, Power on the dvr – ARM Electronics XR&HD480 Series User Manual
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Pin Definition of Audio In / Audio Out
For terminal blocks of Audio In and Audio Out, shown as below pictures, pins on the upper row are
Audio In / Audio Out connectors for all channels, in sequential order from left to right. All other pins
on the bottom row are for ground connection.
4ch-Model:
8ch-Model:
16ch-Model:
Power On the DVR
Please follow the proper power on procedures to avoid damaging the DVR.
• Connect all necessary components, e.g. monitor and cameras, before power on the DVR.
• Check the type of power source before plugging in the power cord to the DVR. The acceptable
power input is between AC110V ~ AC240V.
• Press the power switch on the rear panel to power on the DVR.
Select Viewing Mode:
• Press MODE button repeatedly to select the wanted display mode. The available viewing modes
are full-screen, 2×2, 3×3, and 4×4 split-window.
• Press FREEZE to pause the current viewing image.