User Manual for X7-E1608
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Definition and interface of DB26
DB26
Definition of DB26
Port
Interface
Description
RS485
RS232-1
1: 232TX, 2:232RX, 3:5V
，
4:GND
RS232-2
1: 232TX, 2: 232RX, 3: 5V
，
4: GND
RS485-3
1: 485A, 2: 485B, 3: 5V
，
4: GND
RS485-4
1: 485A, 2: 485B, 3: 5V
，
4: GND
Alarm input
SENSOR1~8
8 alarm input
，
2V is low level
，
5V~30V is high level
Speed sensor
SPEED+ SPEED-
To connect with speed pulse
1.7.3. POWER CABLE
Below is a power cable, one end is 4PIN white connector which can be insert into the back panel
of MDVR. Red cable and black cable can be connected with the battery of vehicle; red cable is “+”, black
is “
–
”, yellow is ignition. MDVR will start to work automatically when you turn on the engine, it switches
off when you turn off the engine. The yellow cable should be connected with the key which is related with
the dash board.
Attention
：
1)
Make sure the voltage is 12V to 36 V before you connect the MDVR to the battery, otherwise, the
MDVR will be damaged by the power which is higher than 36V.
2)
Pay attention to the insulation of the wires to avoid short circuit.
3)
Yellow cable much be connected with the engine, otherwise, the MDVR will not support the feature
for shut-down delay, which will result in video loss.
