Ko te JHA-D1TV1RB-20 te kaiwhakawhiti ataata me te kaiwhiwhi ka tuku i te ataata 1ch me nga tohu raraunga 1ch RS485 i runga i te muka whatu.I runga i te muka aratau kotahi 9/125um ko tona tawhiti mahi he 20Km ki te 80KM i runga i te muka multimode he 5Km.