In essence, the optical fiber transceiver only completes the data conversion between different media, and can realize the connection between two switches or computers within 0--100Km, but the practical application has more expansion.
1. Realize the interconnection between switches.
2. Realize the interconnection between switches and computers.
3. Realize the interconnection between computers.
4. Transmission relay: When the actual transmission distance exceeds the nominal transmission distance of the transceiver, especially when the actual transmission distance exceeds 100Km, if the site conditions permit, using 2 transceivers for back-to-back relay is a kind of Very cost-effective solution.
5. Single-multi-mode conversion: When a single-multi-mode fiber connection is required between networks, a multi-mode transceiver and a single-mode transceiver can be used for back-to-back connection, which solves the problem of single-multi-mode fiber conversion.
6. Wavelength division multiplexing transmission: When the long-distance optical cable resources are insufficient, in order to improve the utilization rate of the optical cable and reduce the cost, the transceiver and the wavelength division multiplexer can be used together, so that the two channels of information can be transmitted on the same pair of optical fibers.