Timing On/Off; Alarm Input / Output Connection; Alarm Input Connection - HIKVISION DS-M5504HNI Series User Manual

correct, and then perform the following steps:
Steps:
Connect the "DC IN +" and "KEY +" of mobile NVR to the positive pole of vehicle batteries, jumping over the switch
1.
of normal vehicle power.
Connect the "DC IN -" to the negative pole of vehicle batteries.
2.
Connect the "KEY -" of mobile NVR to the vehicle ignition switch.
3.

1.5.2 Timing On/Off

Steps:
Connect the "DC IN +" and "KEY +" of mobile NVR to the positive pole of vehicle batteries.
1.
Connect the "DC IN -" and "KEY -" of mobile NVR to the negative pole of vehicle batteries.
2.
For detailed time settings of time-delay shutdown, see Chapter 6.1

1.6 Alarm Input / Output Connection

1.6.1 Alarm Input Connection

DS-M5504HNI series mobile NVR adopts the high/low-level electrical signals triggering (high level: 6 to 36 VDC; low
level: 0 to 5 VDC) to realize alarm input. And in order to avoid error report caused by voltage fluctuation, no alarm will be
triggered by voltage ranging of 5 to 6VDC.
Mobile Network Video Recorder User Manual
Figure 1. 6 Timing On/Off
Figure 1. 7 Alarm Input Connection
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