GPON-4080 Optical modem has the reliability, good quality of service guarantee, manageability, scalability and flexible networking features to meet the requirements of high-speed broadband access. It also has ITUG.984 compliant GPON standards, IGMP functionality, multiple management methods, and compatibility with major OLT vendors. The GPON-4080 Optical modem can also be said to be a modem that translates a computer’s digital signals into analog signals that can be transmitted along a regular telephone line, which in turn can be received by another modem on the other end of the line. A computer-readable language. This simple process completes the communication between the two computers.