It is internally composed of a power transformer and a rectifier circuit. It can be divided into an AC output type and a DC output type according to its output type; it can be divided into a wall type and a desktop type according to the connection mode. There is a nameplate on the power adapter, whi... read more
The AC plug is connected by two fork-type contact springs positioned at the center of the base (tuning fork type AC head) or a smooth hollow metal cylinder positioned at the center of the base (in-line AC head). Connected. Turn left | turn right Also exposed on the outside of the insulating base cyl... read more
1.SYV: solid polyethylene insulated RF coaxial cable 2. SYWV (Y): physical foaming polyethylene insulated cable TV cable, video (RF) coaxial cable (SYV, SYWV, SYFV) for closed-circuit monitoring and cable TV engineering SYWV (Y), SYKV cable TV, broadband network dedicated cable structure: (coaxial c... read more
First, the use code - not marked as a power cable, K is the control cable, P is the signal cable; Second, the insulation code - Z oil-impregnated paper, X rubber, V polyvinyl chloride, YJ cross-linked polyethylene Third, the conductor material code - not marked as copper, L is aluminum; Fourth, inne... read more
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