100G QSFP28 Optical Modules How to Choose
James Zeng
Compatible Optical Transceiver Module Sales Director at Aerech Networks | Provide Fiber Optic Products for Data Center, Telecom, and Enterprise Networking Solution Projects
There are many types of 100G QSFP28 optical modules, which are usually used in data center interconnection. Each module has characteristics suitable for different application scenarios. The 100G QSFP28 optical module has the following application options.
Switch multimode fiber cabling 5-100 meters
Use 100G QSFP28 SR4 optical modules. For distances less than 70 meters, OM3 multimode fiber is used, while for distances between 70 and 100 meters OM4 multimode fiber. 100G QSFP28 SR4 is suitable for 100G network transmission on different floors.
Switch single-mode fiber cabling between 100 meters and 2 kilometers
Use 100G QSFP28 CWDM4 or 100G QSFP28 PSM4 optical modules. Both modules have a maximum transmission distance of 2 kilometers, with similar costs. However, the cost of connecting PSM4 with MPO cables is higher than connecting CWDM4 with LC cables. This setup is suitable for 100G network transmission between different buildings.
Building interconnection 2 kilometers to 10 kilometers
Use 100G QSFP28 LR4 optical modules with a maximum transmission distance of 10 kilometers. It uses single-mode fiber for transmission and is suitable for 100G network transmission within the same city and administrative region.
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Data center long-distance transmission over 10 kilometers
Use 100G QSFP28 ER4 or 100G QSFP28 ZR4 optical modules with a maximum transmission distance of 40 kilometers or 80 kilometers. It uses single-mode fiber and is suitable for 100G network transmission between different administrative regions within the same city.
In the actual application process, factors such as cost, power consumption, transmission distance, and the type of jumpers are considered. The choice of application is based on the transmission distance of different optical modules, the type of fiber used, power consumption, wavelength, and other factors.
AERECH can provide a full series of 100G QSFP28 optical modules, except for what we mentioned above, 100G QSFP28 BDSR, BIDI 100G QSFP28, 100G QSFP28 ZR4+ 100KM, 100G QSFP28 DWDM 80KM LC are available. If you need assistance with optical modules, reach us freely.