HIKVISION DS-MP7504, User Manual

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Mobile Digital Video Recorder User Manual
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The normal vehicle power refers to the main power of the vehicle power supply system. After the vehicle is off, the
normal vehicle power still provides direct-current source for the other devices inside and generally a main switch is
used to turn on/off it.
Negative pole ignition switch
Figure 1. 5 Connection of Negative Pole Ignition Switch
Ignition switch is connected to the negative pole of DC+12/24V of vehicle batteries. Please make sure that the connection is
correct, and then perform the following steps:
Steps:
1. Connect the “DC IN +” and “KEY +” of mobile DVR to the positive pole of vehicle batteries, jumping over the switch
of normal vehicle power.
2. Connect the “DC IN -” to the negative pole of vehicle batteries.
3. Connect the “KEY -” of mobile DVR to the vehicle ignition switch.
1.4.2 Timing On/Off
Figure 1. 6 Timing On/Off