User Manual of DS-8104HMI-A(/XX) Series Mobile Net DVR (V1.20.00)
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(2) Connection of Negative Pole Switch
(Fig 2.7):
Connect the “DC IN +” and “KEY +” of DVR to the positive pole of vehicle batteries;
Connect the “KEY -” of DVR to the vehicle ignition switch;
Connect the “GND” of DVR to the negative pole of vehicle batteries.
After KEY connected to the switch, when switch on, the DVR will start up with the vehicle; when switch off,
the DVR will shut down within the preset delay time. More information on the time-delay shutdown
function can be found in section 5.8.1
Note:
Please contact the vehicle battery manufacture for the information on the voltage polarity.
2.5.2
Connection for auto power on-off
Connect DC+ and KEY+ to the vehicle batteries positive pole and DC- and KEY- to the vehicle batteries
negative pole for the DVR auto on-off function. The connection is as Fig 2.8. The settings details please refer
to section 5.8.1.
DS-8104HMI-M (/XX) series mobile DVR working consumption is less than 10W. If you need a long auto
working time, please considering standby power supply according to the conditions.
Fig 2.7 KEY connect with negative ignition switch
Fig 2.8 KEY connect with vehicle batteries
