Connecting devices, 1. 4 channel premium dvr – CNB HDS4848DV User Manual
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2. Connecting Devices
2-1. 4 Channel Premium DVR
The rear panel of the 4 channel premium DVR comprises the following:
• Front USB: Two USB ports are provided to connect external devices like HDD, ODD, Flash memory
for Backup, System upgrade or USB mouse on the front panel. A USB mouse can be connected only
front panel USB port dedicated only for mouse.
Video Input
Connect the coaxial cables from the cameras to the BNC video connectors.
Loop-Through Video
Connect the coaxial cables from the Loop BNC connector to another device.
Audio Input
The DVR can record audio up to 4 sources. Connect the audio sources to
the Audio-In RCA connectors. All channels need external pre-amplifiers.
It is the user's responsibility to determine if local laws and regulations
permit recording audio.
Audio Out
The DVR does not have amplified audio output, so you will need a speaker with and amplifier.