How many phone points can be connected to a voice patch panel?
First take a wire to take the capacitor at both ends together (put the end of electricity), then the capacitor into the circuit charge (capacitor both sides were connected to the circuit), then remove the capacitor, with a wire at the same time to contact the two ends of the capacitor There are sparks that have electricity, indicating that the wires are good. Precondition capacitance withstand voltage and capacity is to meet the experimental requirements. Capacitors, usually referred to as their ability to contain charge for the capacitor, with the letter C said. Capacitance is composed of two metal electrodes between a layer of insulating dielectric. When a voltage is applied between the two metal electrodes, the charge is stored on the electrode, so the capacitor is an energy storage element. Any two conductors that are insulated from each other and form a capacitor.
1 data line is broken 2 interface bad 3 bad contact 4 from the start try
With the ordinary cable is not the use of the advantages of the copper core cable Caixing, the kind of expensive. This will not have another power supply, 5V power good looking ah, mobile phone charger are. Many mobile phone chargers are There is a USB port output. Find a very easy bar /
