100G QSFP28 transceiver

Today, the trend for 100G is bullish and inevitable. To achieve the cost-optimized solutions for connecting 100G switches together in a rack or data center, you can use 100G transceivers  QSFP28 optical transceiver modules that become very popular in the 100G connectivity, .This article will focus on 100G QSFP28 transceiver.

The QSFP28 interconnect offers four channels of high-speed differential signals with data rates ranging from 25 Gbps up to 40 Gbps, and will meet 100 Gbps Ethernet and 100 Gbps 4X InfiniBand Enhanced Data Rate (EDR) requirements.

100G QSFP28 Interface

100G QSFP28 transceivers can be classified as QSFP28 100G SR4, QSFP28 100G PSM4, QSFP28 100G CWDM4 and QSFP28 100G LR4 , QSFP28 100G SR4 and QSFP28 100G PSM4 transceiver have same MTP/MPO interface,which offers 4 independent transmit and receiver channels,  each capable of 25Gbps operation for an aggregated data rate of 100 Gbps,and uses a 12 fibers MPO/MTP multimode cable for connectivity. QSFP28 100G CWDM4 and QSFP28 100G LR4 interfaces with LC duplex connectors.

Transmission Distance

100G QSFP28 Transceiver can be used for both short-distance and long-distance transmission. 100G QSFP28 LR4 transceivers are often used for long-distance transmission. which are designed for use in 100 Gigabit Ethernet links on up to 10km of single mode fiber,The 100G QSFP28 ER4 optical transceiver provides superior performance for 100G Ethernet applications up to 30 km links.it is ideal for very long transmission distance.

High Port Density and Cost

Compared to CFP , CFP2 and CFP4, the QSFP28 is smaller in size making a great choice for Ethernet switch vendors who want to maximize the port density on their equipment,The higher port density and lower power consumption offer overall systems savings for the customer.

100G QSFP28 Transceivers Solution

The ideal solution would allow best-in-breed 100G switches and routers to be used within the data center, with low power consumption and a maximum port count .The solution that offers the best of both worlds allows the user to get the full benefits of QSFP28 transceivers in the datacom equipment and gets the advantages of telco-quality traffic transportation between sites.

Why will 100G QSFP28 be the dominant package?

 For the same reasons 1G SFP become 10G SFP+. The cabling type is the same as QSFP+ 40G, the transceiver pinouts are the same and the switch vendors can provide high density 40G/100G dual mode ports instead of a soup of different port sizes, exactly like the dual mode SFP/SFP+ 1G/10G ports. 

QSFP+ modules maybe be used on the QSFP28 ports, however QSFP28 transceivers are not able to transmit 100Gbps on the QSFP+ port. When using the QSFP+ module on the QSFP28 port, don’t forget to configure your switch . To ensure the smooth network transmission, you need to make sure that  the connectors on both ends are the same and no compatibility issue exists.

Summary

The QSFP28 transceiver and interconnect cable is a high-density, high-speed product solution designed for applications in the telecommunications, data center and networking markets.QSFP28 transceiver is the most preferred module with smallest size and lowest power consumption

If you are interested in UTOPTICAL compatible module or full range of optical transceivers & cables ,please visit :UTOPTICAL Online Store.