
STACK Digital Video Recorder
Troubleshooting
Users Guide
31
Recommended Vehicle System Power connections
Power for the Stack Video/Data System and DVR must be
connected to the Master switch supply and not to the switched
Ignition supply. This arrangement allows the engine to be
switched off before the power to the Stack system.
This is necessary so that the system can detect that, for instance,
the Engine Speed (RPM) has fallen to zero and will have sufficient
time to stop the DVR from recording before power is removed from
the Stack system.
Important
: Failure to stop the DVR from recording before the
power is removed will cause the video recording in progress to be
lost!
Neg(-)
Pos(+)
Battery
Engine
&
Vehicle
Master SW
Ignition SW
Stack
system