QSFP+ Loopback adapter modules are used for testing

In addition to the electrical loopback function, the QSFP/QSFP+ provides an MSA standard 2-wire serial communication interface to digital diagnostics and preloaded EEPROM two-page memory map. The QSFP+ Loopback also contains a two-colored LED indicator that displays the operating status of the module. The electrical loopback provides a cost effective method for QSFP port testing. Transmitting data from the host is electrically routed (internally to the loopback module) to the receive data outputs and back to the host. Since the QSFP+ Loopback module does not contain laser diodes or photodiodes, it provides a very cost-effective way to test QSFP port Buy Compatible QSFP+ Loopback from China factory, ship in 1 day, Return & Refund, Offer Twinax Copper,QSFP/QSFP+ Passive Electrical Loopback EOLQ-XLB is used for testing QSFP/QSFP+ transceiver ports in board level test. The electrical loopback provides a cost effective low loss method for QSFP/QSFP+ port testing. The EOLQ-XLB is packaged in a standard MSA housing compatible with all QSFP/QSFP+ ports. Transmit data from the host is electrically routed,