The QSFP28 optical module provides four channels of different signals, and the transmission rate is increased from 25Gbps to 40Gbps. The size of the QSFP28 optical module is smaller than other 100G modules, so it has received more and more attention. If you want to deploy a high-density, high-speed network, choosing a 100G QSFP28 optical module will be a good choice.
100GBASE-LR4 QSFP28 optical module
100GBASE-LR4 QSFP28 is mainly used in multimode fiber transmission applications, and the transmission distance of optical modules can reach 10km. The 100GBASE-LR4 QSFP28 optical module converts 4 channels of 25Gbps electrical signals into 4 channels of LAN WDM optical signals, and then multiplexes them into a single channel to achieve 100G optical transmission. If you need optical modules for long-distance transmission, you can choose 100GBASE-LR4 QSFP28 optical modules for 100G network upgrade.
100GBASE-SR4 QSFP28 Optical Module
The transmission distance of the 100GBASE-SR4 QSFP28 optical module can reach 100m, and the interface type is MTP/MPO, which is generally used with OM3 fiber and OM4 fiber. The QSFP28 full-duplex optical module provides 4 independent transmit and receive channels, each channel‘s rate is 25Gbps, and the overall data rate is 100Gbps. If you need short-distance transmission optical modules, you can choose 100GBASE-SR4 QSFP28 optical modules for 100G network upgrade.
100GBASE-CWDM4 QSFP28 Optical Module
The 100GBASE-CWDM4 QSFP28 optical module has a transmission distance of up to 2km, and uses coarse wavelength division multiplexing technology for transmission. It uses CWDM technology to reduce the original 8 optical fibers required for data transmission to 2 optical fibers, and the cost of the 100GBASE-CWDM4 QSFP28 optical module is much higher than that of the 100GBASE-PSM4 QSFP28 optical module. If you need optical modules for long-distance transmission, you can also choose 100GBASE-PSM4 QSFP28 optical modules for 100G network upgrade.
100GBASE-PSM4 QSFP28 Optical Module
100GBASE-PSM4 is a standard defined by MSA, and the transmission distance can reach 500m. It is a product with high speed and low power consumption, and is generally used in 40G and 100G Ethernet. The 100GBASE-PSM4 QSFP28 optical module has digital diagnosis function, the interface type is MTP/MPO, and the ribbon fiber with MTP/MPO connector can be inserted into the QSFP28 optical module. If you focus on high speed and low power consumption, it is recommended to use this optical module for 100G network upgrade
