1)active video balun 1 ch video receiver 2)Male BNC connector 3)DSA Technology 4) ... is active video transmitter and ST-201R is active video receiver. ST-201T/R has small size. The power supply ... and etc. Product NameST-201T/R (T: transmitter. R: receiver)Function1ch video transceiverApplied DevicesCCTV cameras, monitors, DVR, switchers, IP encoders ... º ~ 70º C active video balun 1 ch video receiver