The interface type,Cisco SDH SFP 10GBASE-LX4 uses coarse wavelength division multiplexing (CWDM) technology, the 12.5 Gb / s data stream is divided into 1.25 Gb / s data stream transmitted in optical fiber, the use of 8B/10B encoding , so the effective data traffic is 10 Gb / s. This interface type has the advantage of more flexible applications, you can either use multi-mode fiber, used in transmission distance is short on price-sensitive applications, single-mode fiber can also be used to support the application of a longer transmission distance.
10GBASE-SR of the physical coding sublayer (PCS) using efficient 64B/66B code on the line transfer rate is 10.3 Gb / s. 10GBASE-SR 850 nm lasers used in the multi-mode fiber transmission distance is 300 m; 10GBASE-LR and 10GBASE-ER, respectively, using 1 310 nm and 1 550 nm laser, the single-mode fiber transmission distance are 10 km and 40 km, suitable for transmission within the metropolitan area, is the current mainstream.The network operators are changing the multiple-protocol network into the single protocol network. For example, in the mobile supporting network, the DS1/E1 signal can monitor by SAToP protocol.The operators need to apply the current SONET/SDH signal to the bundle networks directly next thing. The TSoP intelligent SFP fiber optic module can support for use of duplex fiber optic and single fiber optic. Its transmission distance is 80km. ”.Does not the SFF optical module support hot-plugging? SFF optical module has pin solder on the board. SFF optical module is inserted in a cage and cage is soldered on the board. Compare with SFF optical module, SDH SFP optical module is hot-plugging. It can be pulled out directly and replaced in the case of problems of component. While, SFF optical module can be replaced directly. What should be noticed is that hot-plugging refers to component, not the fiber.