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What is the single fiber transceiver? What is a double fiber transceiver?
single fiber transceiver is refers to the single mode fiber, single fiber transceiver is used only one core, both ends meet this core, at the ends of the transceiver with different wavelengths of light, so it can light signal transmission in a single core.
double fiber transceiver is used the two core, send a receiving a root, one end is the other end of the hair must be inserted in the mouth, is to cross on both ends.
1, the single fiber transceiver
single fiber transceiver to achieve emission features and to implement receiving function, it USES the WDM technology, two beams of different wavelengths of light signals in a single fiber transmission so as to realize the sending and receiving.
so single-mode single fiber transceiver is it through a core optical fiber to transmit, then transmit and receive light is transmitted through a single fiber core at the same time. Situation, in order to realize the normal communication must use two wavelengths of light to distinguish.
2, double fiber transceiver
double fiber transceivers have TX mouth ( Launch) With the RX ( Receive) , two are emission wavelength of 1310 nm, receive also is 1310 nm, so the wiring in parallel of the two optical fibers cross connection.
3, how to distinguish between single fiber transceiver and double fiber transceiver?
there are two ways to distinguish between single fiber transceiver and double fiber transceiver.
a, when the optical transceiver embedded light module, optical transceiver in accordance with the connection of the number of fiber core of fiber optic jumper divided into single fiber transceiver and double fiber transceiver. The single fiber transceiver connected linear for a fiber core of fiber optic jumper, this a fiber core is responsible for transmitting data and be responsible for receiving data; And double fiber transceiver connected by linear for two fiber core of fiber optic jumper, one of the fiber core is responsible for data transmission, another fiber core is responsible for receiving data.
b, when there is no built-in light optical transceiver module, need according to the inserted optical module is to distinguish between single fiber transceiver or double fiber transceiver. When inserted in the optical transceiver is single fiber bi-directional optical module, the interface into simplex types; When inserted in the optical transceiver is double fiber bidirectional optical module, the interface into duplex type.
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