... modeNTSC/PAL automatically suitableDisplay2.5 inch LCD screen, 960 x 240 resolutionVideo input1 channel BNCVideo output1 channel BNCCommunicationRS232, RS422 simplex ... testTest UTP cable connection stateSignal generatingOutput 1 channel video signal for testing monitorRS485 data ... menuEnglish OSD menu, support multi-languagesKeyboardNew design with number buttons, easy to operatingPower and ...