17 November 2010

Avago launches first optical module to enable multimode 40G Ethernet uplink applications

Avago Technologies has announced the availability of the AFBR-79E4Z four-channel parallel optic QSFP+ transceiver module for 40 Gigabit Ethernet, enabling data communication and interconnect applications that integrate four independent 10Gbps data lanes in each direction to provide 40Gbps aggregate bandwidth. The pluggable modules also provide an alternative to copper interconnects for switch and router connections, data aggregation systems and backplane applications.

The proliferation of videos and multimedia files in business environments is placing a premium on bandwidth and density in data centers and high-performance computing applications, says Avago. Copper interconnects present significant challenges to achieving 40Gbps bandwidth performance, and their power and size requirements are inefficient for higher-bandwidth applications. System designers are hence making the transition to optical interconnects, which can handle much higher bandwidths for longer-reach lengths, consume less power, improve electromagnetic noise resistance, and provide more flexible cable management than copper-based solutions.

The AFBR-79E4Z QSFP+ modules are fully compliant to the IEEE 802.3ba 40GBASE SR4 specification, and support the IBTA 4 x 10G QDR for Infiniband applications. They provide designers with maximum flexibility to support installations of varying cable links or for difficult cable plant installations, says Avago. With data rates of 10Gbps for up to 100m using OM3 fiber or 150m using OM4 fiber, the modules operate over multimode fiber systems using a nominal wavelength of 850nm. Their electrical interface uses a 38 contact edge type connector, while the optical interface uses either an 8- or 12-fiber MTP (MPO) connector. A 21mm horizontal port pitch provides high port density. Maximum power consumption is less than 1.5W, while the case temperature operating range is 0–70°C.

The AFBR-79E4Z modules provide what is claimed to be superior electro-optical noise immunity, enabling the optimal jitter performance required for high-speed computing, server clustering, Infiniband and Ethernet switching, and core routers. The transceivers are also hot pluggable for ease of installation and servicing, and are backward compatible with 5 and 2.5Gbps per channel applications.

In addition to the AFBR-79E4Z transceiver, the AFBR-79E4Z-D variant features full real-time digital diagnostic monitoring. The AFBR-79E4Z is priced at $550 and the AFBR-79E4Z-D at $600, each in 10-piece quantities.

At this week’s Super Computing 2010 (SC10) conference (16–19 November), Avago is demonstrating its QSFP+ transceiver technology for 40 Gigabit Ethernet applications connected to an Infiniband switch using its new CXP form-factor technology.

Tags: Avago QSFP+ transceiver module

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