HIKVISION DS-M5504HNI Series User Manual page 16

Positive pole ignition switch
Ignition switch is connected to the positive pole of DC+12/24V of vehicle batteries. Please make sure that the connection is
correct, and then perform the following steps:
Steps:
Connect the "DC IN +" of mobile NVR to the positive pole of vehicle batteries, jumping over the switch of normal
1.
vehicle power.
Connect the "DC IN -" and "KEY -" of mobile NVR to the negative pole of vehicle batteries.
2.
Connect the "KEY +" of mobile NVR to the vehicle ignition switch.
3.
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
Ignition switch is connected to the negative pole of DC+12/24V of vehicle batteries. Please make sure that the connection is
Mobile Network Video Recorder User Manual
Figure 1. 4 Connection of Positive Pole Ignition Switch
Figure 1. 5 Connection of Negative Pole Ignition Switch
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