... immunity test 8KV (IEC-256-22-2)Surge: 4kvBurst: 4kvHigh-frequency interference: 2kvAnti-vibration, shock, impact performance requirements meets the ... UnitThis section is to collect data, calculate energy, fault diagnosis, signal input and output, data exchange. c. Communication interfaceThere are ... , automatically send SMS messages or wireless transmit signals. YDG Series Power Management Device