High-performance Optical Time Domain Reflectometer designed for FTTH, FTTx, telecom operators, ISPs and enterprise fiber networks. High-performance Optical Time Domain Reflectometer designed for FTTH, FTTx, telecom operators, ISPs and enterprise fiber networks. High-performance Optical Time Domain Reflectometer designed for FTTH, FTTx, telecom operators, ISPs and enterprise fiber networks. High-performance Optical Time Domain Reflectometer designed for FTTH, FTTx, telecom operators, ISPs and enterprise fiber networks.