INSTALLATION PRO-VISION® Video Systems
DVR-906M SYSTEM GUIDE
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Installing DVR Power Cable
The power cable is an essential component of the DVR unit, it provides power to unit and also controls
when the unit turns on and off. It is important to ensure that primary battery power connection is to a
clean 12V-24V DC power connection.
Fused 12-24V DC Battery Power: The battery power wire should be connected to
an always-on power location on the vehicle. The connection should include a 3A fuse
(provided) and should be connected to its own circuit that is not shared with other
components or accessories. If possible, connect directly through a 3A fuse to the
positive terminal of the vehicle’s battery.
Key ON Ignition Signal: This wire is used to tell the unit when the ignition of the
vehicle is ON. It can be connected to a 12/24V DC ignition source through a 3A fuse
(provided) or to a ground level ignition source. If using a ground level ignition source,
the wire must first be connected to a 12V source, then the setting for “Ignition Level”
must be changed in the power menu to the proper “LOW” level setting before final
connection to the ground level source.
Chassis or Battery Ground: The ground wire should be connected directly to a
clean grounding stud/screw or directly to the negative terminal of the battery.
IMPORTANT! Do not connect the red battery power wire to a battery drain protection device such as a
ChargeGuard®; this can cause abnormal performance and/or damage the electronics
inside the recording unit. The unit itself has a battery drain protection function built in.
IMPORTANT! You must use fuses that can handle the current draw of the unit with all cameras and
accessories. With the DVR unit, 8 cameras, GPS, Event Marker Button, and a Solid State
Disk (SSD) the current draw is ~3A at 12 VDC.
IMPORTANT! The included red and green fuse holders are for the protection of the DVR unit; it is not
required to use these fuse holders if a suitable substitute is provided. Failure to install a
fuse inline on the red battery power or green ignition power connection wires could result
in damage to the vehicle or system that is not covered under warranty.
+10-32V DC Ignition Power
- Ground
+10-32V DC Battery Power
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