... 8/16channels 4:video transmitter, cctv video balun Description of wireless long range converter cctv video balun:Twisted-Pair Video Transmission is a twisted pair achievement of the ... Twisted-Pair Video Transmission, control distance 300metres, lightning protection,NA-600A-1: passive Twisted-Pair Video Transmission, control distance 600metres, lightning protection.NA-5001B: active Twisted-Pair Video ...