Camera plus more than 10 meters USB extension cable, the computer can not find the equipment is power shortage? Can you use the mobile phone charger direct power supply? Camera is red, green, black, white four-color line, mobile phone charging is also, but I measured the phone's power is green line is 5 volts, do not know which two-color camera line is the power cord, seeking expert guidance, thank you! More
First, the procurement costs Second: the cost of production three: management costs, and so add up on it
Are low-voltage assured, it is not really do not worry about the control cable to wear PVC or PVR pipe protection, wear steel pipe, then the steel pipe has a higher demand,
the power is not working to determine whether the power supply can check the three places in the work: First, the power supply on the back of the cooling fan is not on the back of the power supply is not displayed turn
