The Functions and Characteristics of SP-RG59 220V lighting arrester. The range of SP-RG59 220V multifunctional lighting arrester is a kind of professional integrative multifunctional electric surge protector. It is specially designed for surveillance control system. It can prevent the camera power, video, cloud platform control circuit from surge and static, the greatest discharge current can achieve 10KA, reacting within nanoseconds, so it can fully protect high and expensive surveillance control equipments. It has great flow capacity, low-level persistent voltage, sensitive reaction, steady capability, and low-loss insert. The installation and maintenance is also very easy and convenient, 2.Installation guide (1) First, link the control signal line and the power line with 4P socket (as the following picture), then plug in follow the arrow. (2) The main socket of BNC is the signal input, connect it to the signal line, the common outlet of BNC is the signal output, it connects the protected equipment. Do not connect in the opposite directio