... in long distance video image,digital,audio signal TR-8000 Series Field Optical Node SummaryThis type of Optical Node is based ... PIN Optical Receiving IC, import PHILIPS or MOTOROLA low-noisy push-pull amplify module in pre-RF amplify circuit, import ... make more convenient. 3 Aluminum waterproof housing, high-capability power switch, anti-thunder system, make sure work properly outdoor.Work properly ...