1.CATV 2.LAN, access network 3.Telecom, Optic fiber communication system 4.FTTH 5.Monitoring Applications:*CATV*LAN, access network*Telecom, Optic fiber communication system*FTTH*Monitoring system*Optic fiber sensor*Testing devices Features:*Suitable for any kinds of coupler*Connector type: FC/PC,FC/APC,SC/PC,SC/APC,ST/PC*User-defined Ratio 1-6 frame coupler