Timbercon asserts.The electrical loopback is packaged in a standard MSA housing compatible with all QSFP/QSFP+ ports. It features a customizable memory map and enables operation at any power including the four maximum power levels identified in the MSA, Timbercon says.Transmit data from the host is electrically routed (internal to the loopback module) to receive data outputs and back to the host. Because the electrical loopback module does not contain laser diodes, photodiodes, a laser driver, or transimpedance amplifier chips, it provides a more economical way to test QSFP Passive Cable validation, production testing, and full system testing, Timbercon believes.In addition to the electrical loopback function, the QSFP Passive Cable an MSA standard 2-wire serial communication interface to digital diagnostics and preloaded EEPROM two-page memory map. The QSFP/QSFP+ Loopback also contains a two-colored LED indicator that displays the operating status of the It also contains guidance for 2012 and potential changes to LightCounting’s market forecast published in December 2011.The report authors point to 2011 as instructive for those pondering 2012. Sales of optical components and modules increased by last year after growing