How Much Do You Know About the 200G QSFP56 Transceivers?

Since the annual growth of internal traffic in Data Centers is growing rapidly, many Internet giants which deploying Data Centers earlier are seeking to obtain 200G transceivers urgetnly. However, many other enterprises choose to skip 200G and wait for 400G in order to obtain better cost performance. The IEEE 400G Ethernet standard has been completed earlier than that of 200G Ethernet standard reflects that most of the enterprises are more likely to choose 400G directly.



Both 200G and 400G transceivers are expected to be commercially ready by 2020, but 400G will be more mainstream and cost-effective. As a transition from 100G to 400G, 200G optical transceiver also has its irreplaceable role. The 200G optical transceiver solves the problem for long distance transmitting, high speed rate, small size, and lower power consumption, It is mainly designed for Data Center market, with transmission distance from 100m to 10km.

As an evolution of the previous 40G QSFP+ and 100G QSFP28, Quad 50 Gigabits Small Form-factor Pluggable (QSFP56) is the one designed for 200G Ethernet. QSFP56 denotes 4 x 50 to 56Gb/s in a QSFP form factor. Sometimes it can also be referred to as 200G QSFP for sake of simplicity. QSFP56 optical transceivers are similar to QSFP ones in terms of size and form factor. Classified by distance, QSFP56 transceivers can be divided into QSFP56 SR, DR, FR, LR, which enables different transmission distances over a single mode fiber (SMF) or multimode fiber (MMF).

NADDOD 200G QSFP56-SR4 optical transceiver is a high-performance transceiver used for short-range multi-channel data communication and interconnection. It is a PAM4 modulation transceiver with MPO/MTP-12 connector using multi-mode fiber for 100 meters short range internal traffic transmitting inside the Data Centers. It has advantages of low cost, low power consumption, high density depolying and high speed rate with excellent cooling design. The power consumption is less than 6W, supports DDM function fully meets the multi-mode optical fiber 100m zero error transmission application.

NADDOD 200G QSFP56-SR4 detailed parameters：



QSFP56 made the change from NRZ to PAM4 encoding. Though QSFP56 still uses 4 lanes like QSFP28, the modulation is doubled to 50G per channel which enables more data on existing fiber. Accordingly, it more suitable for hyper-scale data center networks.
Based on the current market demand point of view, data center product demand is strong which requires constant product upgrades and lower product costs. By virtue of its own technical advantages and unique insight, the 200G QSFP56-SR4 optical transceivers developed by NADDOD is precisely designed to solve the cost problem for customers.