... supply has RS-485 interface(modbus), has AMP/hour meter,0-99999999 0-20000A,0-36V, Matched with automatic production line, ... attenuation within 1200m.Lower construction cost: with digital networking technology and RS-485 communication interface, only 2 twisted-pair cable can ... like products, the excellent performance is more prominent.With special anti-corrosion structure, it is available to adapt to ...