The 10G SFP-DWDM optical module is a high-speed, high-capacity dense wave-divide multiplexed optical module, usually used with single-mode fiber, with a transmission distance of up to 80km, suitable for long-distance data transmission. The 10G SFP-CWDM optical module is a coarse-wave multiplexed optical module, usually used with single-mode fiber. In order to work efficiently, the BIDI SFP 10G must be paired to enable the two-way transmission of data by tuning the duplex to match the desired wavelength of the transmitter and receiver.
The ZR in the 10G SFP-ZR optical module model refers to the longest distance (Ze best range), which shows that this optical module has a very long transmission distance and can travel up to 80km when used with a single-mode fiberīIDI optical module is a single fiber two-way optical module, this optical module has SFP and SFP plus two packaging methods, the main difference is that the rate of BIDI SFP plus optical module is 10G, BIDI SFP optical module rate is 100 megabits or gigabit.The main difference between the BIDI SFP 10G and the traditional dual-fiber bidirectional optical module is that the BIDI SFP 10G is equipped with a wave-splitting multiplex (WDM) coupler, or duplex, that combines and separates the data transmitted over a fiber according to the wavelength. The 10G SFP-ER optical module complies with the 10GBase-ER Ethernet specification, where ER means ultra-long distance (Extended Range) and has a wavelength of 1550nm and a transmission distance of up to 40km when used with a single-mode fiber The 10G SFP-ZR optical module complies with the 10GBase-ZR Ethernet specification, but this specification is proprietary to Cisco. The 10G SFP-LRM optical module can be used with OM1, OM2, OM3 multi-mode fiber, and is mainly used for FDDI network and 10G data communication, and its low power consumption and excellent EMI are fully compliant with THE MSA SFF-8431 standard. The 10G SFP-LRM optical module complies with the 10GBase-LRM Ethernet specification, where the LRM refers to the Long Reach Multimode for length extension. The SFP-10G-LR optical module conforms to this specification and has the characteristics of miniaturization, low power consumption and long transmission distance. The “LR” in the 10GBase-LR refers to the “Long Range”, wavelength (1310nm) single-mode fiber (SMF), with a transmission distance of 10km. The 10GBase-SR is one of the Ethernet specifications, the 10G SFP-SR optical module complies with this standard specification, and the SR in this light module model is short distance (Short Range), which means that it uses a transmission distance of up to 300m with multimode fiber.