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23
Only “Admin” can set “Admin Password” and “User Password”
6 I/O Interface
Picture.30 IO Interface
① Alarm-2 ② Alarm-4 ③Alarm Output ④ 485B
⑤ Alarm-1 ⑥ Alarm-3 ⑦GND ⑧ 485A
There is 4 alarm input,2 alarm output. Alarm input detection are voltage; can be accessed by
variety of vehicles driving status, such as brakes, steering ,horn and so on. Brake testing schematic
shown below, when the brake pedal is depressed, MDVR able to detect high or low voltage.
Picture.31 Brake testing schematic
Alarm outputs are voltage output. Drive capability of 200mA, if you want large power devices,
must be externally relays. Alarm output photoelectric schematic shown below.
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