Mini Portable Modular Mobile DVR USER MANUAL
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6.3 Alarm Input/Output Connection Mode
Device have 8CH Alarm Input Interface, 24 PIN I/O Interface Definition is IN1 - IN8 .
Alarm input usually using High Level to trigger, connect SOS button,Kinds of vehicle driving status such as:
Braking,Turning,Door open etc;
The following is the brake detection diagram. When the braking vane is down, the device can detect the
high level or the low level.
Alarm Output is Relay Switch output,can connect Acousto-Optic alarm,Remote Oil/Power cut off etc, if for
high power device need connect external relay
The alarm output diagrams are as following
6.4. Disk pre-allocated technology instructions
Hard Disk pre-allocated technology means,
the multiple channel videos will only write in a single
video file. Features: 1. it avoids repeatedly wipe cause file fragmentation; 2. Avoid long distance
repeatedly reading and writing to the hard disk magnetic read; 3.Protect FAT table and catalogue area,
reduce the disk failure.
Through the technology above can ensure the reliability and stability of the
disk, prolong the life of the SD card / hard disk, video data security;
Hard disk drive will be automatically created two partitions, respectively, used to store system logs
and video files, including rec_dir,means video disc, multiple channels video only create into a video file.
Attention
：
After new hard disk insert into DVR, when start in the first time, DVR will automatically format
storage device to pre-allocate the storage space.The loading time of storage device status display
normal need 2-3 minutes, the capacity of a single video file and disk is fixed;
