... video transmission can be reach above 200kmSupporting advanced SNMP standards, realise long-distance web-controllingLED indication of power ... PTZ decoder, Keyboard ,data interface of Matrix, High speed dome camera, industrial equipmentsInterface Signals: RS-485(2 lines),RS232,RS422 ... lEC61643-1Other feature: large flow (10~20KA), high speed reaction (1~25ns)Power requirementInput voltage: common use ...