How is the line of the patch panel in the LAN? How to get the wiring line on the wiring box.
⒈ wire and cable models to choose the choice of wire and cable, to consider the use, laying conditions and safety; for example, depending on the use of different power cables can be used, overhead insulated cables, control cables, etc
Commonly used electrical calculation formulas The first chapter according to the power of the formula one of the formulas 1 Uses: This is based on the power of electrical equipment (kilowatts or kVA) to calculate the current (security) formulas
You should buy the data line is so, there are four lines, red, black, white, yellow. Which white and yellow is the data transmission line, it may also be other colors. Red and black is the power, your camera's power must be connected to the USB power supply can not be independent power supply, and then the other two you are connected on the line.
