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AOC Uses in Modern Data Centers

AOC is composed of integrated optoelectronic devices for high-speed, high-reliability interconnected transmission devices between data centers, high-performance memory devices, and large-capacity memory devices. optic cable and electrical-to-optical conversion.

(100-200 m), installing a long 100 m cable, complete with an expensive transceiver end, is difficult in crowded data center racks so the average reach typically used is between 3-30 m AOCs are typically deployed in open access areas such as in racks or in open cable trays for this reason. Only one “oops” per cable allowed.

Gigalight 25G SFP28 Active Optical Cables (AOCs) are direct-attach fiber assemblies with SFP28 connectors, compliant with 25G Ethernet IEEE 802.3 by 25GBASE-SR standard. They are suitable for short distances and offer a cost-effective solution to connect with racks and crosses adjacent racks. The length is up to 70 meters using OM3 MMF and 100 meters using OM4 MMF.

The Advantage of Gigalight 25G SFP28 AOC

Low power consumption <1 W

The pre-FEC bit error ratio (BER) is guaranteed to meet E10-8 25. 78125 Gb / s @ PRBS 31, 55 ° C. Better than the IEEE pre-FEC BER of less than 5 E-5.

Mature COB technology

Low cost

High capacity, timely delivery

CE, UL, RoHS, GR-468 test report

Conclusion

Sever as a part of the Ethernet hyperscale and enterprise data center builders and has since become a popular way to link top-of-rack switches upwards to aggregation layer switches such as end-of-row and leaf switches. Additions, single channel (SFP) AOCs have become very popular in high-speed, NVMe storage subsystems. Some hyperscale builders 10K or 25G AOC from a top-of-rack switch to subsystems at reaches greater than DAC limits of 3-7 m.


by lafite88 | 2019-06-10 19:31

Optical Communication


by lafite88