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5
2.2 MDVR Basic electrical parameters
Project
Working
parameters
Description
Power input
DC8-36V
Outside this range, the machine does not work
correctly
Power output
DC12V
Output voltage 12V , The maximum current 3A, (For
camera use)
DC5V
Output voltage 5V （ +/-0.2V ), The maximum current
500mA (Sensor)
ACC Signal
≤4V
Car keys close
≥7V
Car key to open
Video input
impedance
75Ω
Each video input impedance 75Ω
Video output
1Vp-p
Output 1Vp-p CVBS Analog signal
I/O Interface
≤2V
Low level signal
≥4V
High level signal
RS232 Serial port
232 Serial port, TTL Level, for extending RS232
Equipment
Table 2-2 Basic electrical parameters
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