With the advent of the 100G era, the 100G QSFP28 fiber optic transceiver has gradually dominated the market with its advantages of low cost and small size. Similar to the 40G QSFP+ fiber optic transceiver, the 100G QSFP28 fiber optic transceiver also has MTP/MPO and duplex LC interfaces. This tutorial will introduce the 100G fiber optic transceivers of these two interfaces.
Type of 100G QSFP28 fiber optic transceiver
Common standards for 100G QSFP28 fiber optic transceivers are 100GBASE-SR4, 100GBASE-PSM4, 100GBASE-CWDM4 and 100GBASE-LR4. Each standard fiber optic transceiver has its own characteristics. The following table shows the details of these four fiber optic transceivers:
Standard | Fiber optic transceivers | Interface | Fiber type | Transmission distance |
100GBASE-SR4 | 100GBASE-SR4 QSFP28 | MTP/MPO（12cores） | MM | 100m |
100GBASE-PSM4 | 100GBASE-PSM4 QSFP28 | MTP/MPO（12cores） | SM | 500m |
100GBASE-CWDM4 | 100GBASE-CWDM4 QSFP28 | Duplex LC | SM | 2km |
100GBASE-LR4 | 100GBASE-LR4 QSFP28 | Duplex LC | SM | 10km |
100G QSFP28 fiber optic transceiver with MTP/MPO interface
As can be seen from the above table, the 100GBASE-SR4 QSFP28 and 100GBASE-PSM4 QSFP28 fiber optic transceivers are MTP/MPO interfaces. These two fiber optic transceivers use 4 independent wavelength channels for 100G transmission, and the transmission rate of each channel can be up to 28Gpbs.
Cabling solutions for 100GBASE-SR4 QSFP28 and 100GBASE-PSM4 QSFP28 fiber optic transceivers
Both fiber optic transceivers are MTP/MPO interfaces and must be used with MTP/MPO fiber patch cords. The MTP/MPO fiber patch cords on the market are mainly available in 12-core and 24-core versions, while the 100GBASE-SR4 QSFP28 and 100GBASE-PSM4 QSFP28 fiber optic transceivers can transmit up to 28 Gpbs per channel, using only 12-core MTP/MPO fibers. Jumper can be. In addition, MTP/MPO fiber patch cords are also available in single mode and multimode. MTP/MPO single mode fiber patch cords have long transmission distances, and MTP/MPO multimode fiber patch cords are suitable for short range transmission. The transmission distance of the 100GBASE-SR4 QSFP28 fiber optic transceiver is about 100m. Therefore, it is generally used together with the MTP/MPO multimode fiber patch cord. The transmission distance of the 100GBASE-PSM4 QSFP28 fiber optic transceiver is 500m. It needs to be jumped with MTP/MPO single-mode fiber. Use the line together.
100G QSFP28 fiber optic transceiver with duplex LC interface
The 100GBASE-CWDM4 QSFP28 and 100GBASE-LR4 QSFP28 fiber optic transceivers use a duplex LC interface. The two fiber optic transceivers also transmit 100G through four independent wavelength channels and use wavelength division multiplexing (WDM) technology to transmit four wavelength signals. Multiplexed to a single mode fiber for transmission. The transmission distance of the 100GGBASE-LR4 QSFP28 fiber optic transceiver can reach 10km, while the transmission distance of the 100GBASE-CWDM4 QSFP28 fiber optic transceiver is 2km.
Cabling solutions for 100GBASE-CWDM4 QSFP28 and 100GBASE-LR4 QSFP28 fiber optic transceivers
We know that most of the current 10G cabling uses duplex LC fiber patch cords, while the 100GBASE-CWDM4 QSFP28 and 100GBASE-LR4 QSFP28 fiber optic transceivers are also commonly used in conjunction with duplex LC single-mode fiber patch cords. Therefore, when using these two 100G fiber optic transceivers, one can make full use of LC single-mode fiber jumpers in 10G wiring to achieve transmission distances of 2km and 10km.
Conclusion
The 100G QSFP28 fiber optic transceiver has the advantages of high port density, small size, low power consumption, etc., and is widely welcomed in 100G networks. Sopto is a professional fiber optic transceiver supplier. We offer a variety of 100G fiber optic transceivers, including not only the 100GBASE-SR4 QSFP28, 100GBASE-PSM4 QSFP28, 100GBASE-CWDM4 QSFP28 and 100GBASE-LR4 QSFP28 fiber optic transceivers mentioned in this article. A variety of 100G CFP/CFP2/CFP4 fiber optic transceivers are available, reliable quality and affordable. For more details, please feel free to contact Sopto!
Tags : 100G QSFP28 , 100GBASE-LR4 QSFP28 , 100GBASE-SR4 QSFP28 , 100GBASE-PSM4 QSFP28 ,100GBASE-CWDM4 QSFP28
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