User Manual

Mobile Digital Video Recorder User Manual
17
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Please contact the vehicle manufacturer for the connection information of starting
switch.
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The vehicle ignition switch, also called car key, controls the startup and shutdown of
the vehicle. Most of vehicles adopt positive pole ignition switch currently.
Figure 2-14 Connection of Positive Pole Ignition Switch
Ignition switch is connected to the positive pole of +12/24 VDC of vehicle batteries. Make
sure that the connection is correct, and then perform the following steps:
Step 1 Connect the "DC IN +" of the device to the positive pole of vehicle batteries, jumping
over the switch of normal vehicle power.
Step 2 Connect the "DC IN -" of the device to the negative pole of vehicle batteries.
Step 3 Connect the "ACC" of the device to the vehicle ignition switch.
Step 4 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.