With the development of science and technology and the acceleration of urban informatization, the requirements for communication technology are getting higher and higher. Optical fiber has become more and more popular in communication due to its advantages of fast transmission speed, long-distance, safety and stability, anti-interference, and convenient expansion. The first choice when laying. We often see long-distance data transmission requirements in building intelligent projects, basically using optical fiber transmission. The link between them requires optical modules and optical transceivers to achieve. Many users have some doubts about the use of optical modules and optical transceivers. How do connect the two? What are the precautions?
Difference Between SFP Transceivers and Optical Media Converters
- The SFP transceiver optical module is a functional module or an accessory. It is a passive device that cannot be used alone. It can only be used in switches and devices with optical module slots. The optical transceiver is a functional device and is a separate active device. The device, plus the power supply, can be used alone;
- the SFP transceiver optical module itself can simplify the network and reduce the points of failure, while the use of optical fiber media converters will increase a lot of equipment, greatly increase the failure rate and occupy too much storage space in the cabinet, which is not beautiful;
- The SFP transceiver optical module supports hot-swap, and the configuration is relatively flexible; the optical media converters are relatively fixed, and it is more troublesome to replace and upgrade than the optical module;
- The SFP transceiver optical modules are more expensive than fiber optic media converters, but they are relatively stable and not easy to be damaged; while fiber optic transceivers are economical and practical, many factors such as power adapter, fiber status, and network cable status must be considered, and the transmission loss accounts for about 30%;
- The SFP transceiver optical modules are mainly used for optical interfaces of optical network communication equipment such as aggregation switches, core routers, DSLAM, OLT, and other equipment, such as computer video, data communication, wireless voice communication, and other optical fiber network backbone networks; In the actual network environment where the network cable cannot cover and must use optical media converters to extend the transmission distance, it is usually located in the access layer application of the broadband metropolitan area network, such as high-definition video image transmission of monitoring and security engineering and the connection of the last mile of optical fiber to the network. on metropolitan area networks and beyond;
In addition, several points should be paid attention to when connecting the SFP transceiver optical fiber module and the optical fiber media converters: the wavelength and transmission distance must be the same, for example, the wavelength is 1310nm or 850nm at the same time, and the transmission distance is 10km; the fiber patch cord or pigtail must be connected with the same interface, Generally, the optical fiber transceiver adopts the SC port, and the optical module adopts the LC port. This point will prompt the choice of interface type when purchasing. At the same time, the speed of the optical fiber transceiver and the optical module must be the same. For example, the gigabit optical media converters transceiver corresponds to the 1.25G SFP transceiver optical module, 100M to 100M, and 10M to 10G; the optical fiber type of the optical module must be the same, single-fiber to single-fiber, Dual fiber to dual fiber.
