With the rapid development of the Internet, the transmission distance of the twisted pair and the influence of electromagnetic interference are limited, which restricts the development of the network. Therefore, the optical transceiver has emerged.The use of fiber optic transceivers replaces the connection medium in the Ethernet with fiber. The low loss and high anti-electromagnetic interference of optical fiber make the network transmission distance expand from 200 meters to 2 kilometers to tens of kilometers, and even hundreds of kilometers, which also greatly improves the quality of data communication.
A fiber optic transceiver is a photoelectric conversion device that converts an Ethernet electrical signal and an optical signal to each other. By converting an electrical signal into an optical signal and transmitting it on a multimode or single mode fiber, the optical cable has a short transmission distance limit, so that the Ethernet Under the premise of ensuring high-bandwidth transmission, the network uses fiber-optic media to achieve long-distance transmission of several kilometers or even hundreds of kilometers.
Advantages of fiber optic transceivers
There are many benefits to using a fiber optic transceiver. For example, fiber optic transceivers can extend Ethernet transmission distances and extend Ethernet coverage radius.Fiber optic transceivers can convert between 10M, 100M or 1000M Ethernet electrical and optical interfaces.Using a fiber optic transceiver to construct a network can save network investment. Fiber optic transceivers make the interconnection between servers, repeaters, hubs, terminals and terminals faster.The fiber optic transceiver has a microprocessor and diagnostic interface that provides a variety of data link performance information.
How to distinguish between single-fiber transceivers and dual-fiber transceivers?
When the optical transceiver is embedded in the optical transceiver, the optical transceiver is divided into a single-fiber transceiver and a dual-fiber transceiver according to the number of cores of the connected optical fiber jumpers.The linearity of the fiber jumper connected to the single-fiber transceiver is a core, which is responsible for transmitting data and receiving data.The fiber jumper connected to the dual-fiber transceiver has two cores, one of which is responsible for transmitting data and the other is responsible for receiving data.When the optical transceiver does not have an embedded optical module, it needs to distinguish whether it is a single-fiber transceiver or a dual-fiber transceiver according to the inserted optical module.A single-fiber bidirectional optical module is inserted into the optical transceiver, that is, when the interface is a simplex type, the optical transceiver is a single-fiber transceiver.When a fiber-optic transceiver is inserted into a dual-fiber bidirectional optical module, that is, the interface is of a duplex type, the transceiver is a dual-fiber transceiver.