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SFP Tranceivers An Important Part Of

Fiber optic transceivers are generally divided into two types, SFP Tranceivers one is the short distance twisted pair electrical signals and long distance optical signals interchangeable Ethernet transmission media conversion unit, commonly known as photoelectric converter; SFP Tranceivers the other is The optical signal into electrical signals, and then converted to another optical signal, also known as fiber conversion repeater. The product is generally used in the actual network environment where the Ethernet cable can not be covered and must be used to extend the transmission distance, and is usually located in the access layer application of the broadband metro network; SFP Tranceivers while helping to connect the last mile of the fiber to the metro Network and more outside the network also played a huge role.

 Because we often use the network cable (twisted pair) the maximum transmission distance has great limitations, the general twisted pair of the maximum transmission distance of 100 meters. Therefore, when we are in the layout of a larger network, had to use relay equipment. Of course, you can also use other types of lines to transmit, such as fiber is a good choice. Fiber transmission distance is very far, in general, SFP Tranceivers single-mode fiber transmission distance of 10 km or more, and multi-mode fiber transmission distance can reach a maximum of 2 km. When using fiber, we will often use fiber optic transceivers. Then the problem came, how to use fiber optic transceivers? How does it access the network?

We all know that a network is composed of a variety of optical devices, fiber optic transceivers is one of the important components. In the fiber optic transceivers access network, the first cable from the outdoor introduction. The cable is to be welded in the cable box, that is, the terminal box. SFP Tranceivers Cable welding is also the door to learn, the need to peel the cable, SFP Tranceivers the fiber in the fiber and pigtail welding, welding and then placed in the box. The pigtail is pulled out, connected to the ODF (a shelf, connected by a coupler), SFP Tranceivers then connected to the jumper by a coupler, and finally the jumper is connected to the fiber optic transceiver. Followed by the order of the order of the router ---- switch --- LAN --- host. In this way, the fiber optic transceivers access the network.

In the enterprise network signal transmission, and sometimes the transmission side may use the multi-mode equipment, and accept the signal side is the use of single-mode equipment, in this case, multi-mode single-mode fiber optic transceivers can be used to carry out Multi - mode fiber to single - mode fiber conversion. In addition, SFP Tranceivers the use of multi-mode single-mode fiber optic transceivers can better adapt to the needs of long-distance transmission, the maximum transmission distance of up to 140km, SFP Tranceivers can meet the low cost and high connectivity requirements. In the following figure, two Ethernet switches with multi-mode ports are connected to two fiber optic transceivers, the multi-mode into a single-mode, to achieve long-distance transmission.

Sometimes, the enterprise network transmission also need to convert duplex fiber to simplex fiber, SFP Tranceivers which depends on the number of fiber inside and outside the equipment. As the name implies, the data transmitted and received by the single fiber is transmitted on one optical fiber, SFP Tranceivers and the data transmitted and received by the dual fiber is transmitted on a pair of optical fibers. Single-fiber equipment can save half of the fiber, that is, in a fiber to achieve data reception and transmission, fiber resources in the place is very applicable. This type of product uses wavelength division multiplexing technology, SFP Tranceivers the use of wavelengths are mostly 1310nm and 1550nm. The next two fiber optic transceivers are a single fiber, SFP Tranceivers one is a dual fiber, to achieve dual-fiber to single-fiber conversion.


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