QSFP+ Loopback

QSFP/QSFP+ Passive Electrical Loopback is used for testing QSFP/QSFP+ transceiver ports in board level test. Transmit data from the host is electrically routed, (internal to the loopback module), to the receive data outputs and back to the host. It provides an economical way to exercise QSFP/QSFP+ ports during R&D validation, production testing, and field testing. The QSFP+ Loopback provides QSFP/QSFP+ power Class 1, 2, 3 (standard), or 4 loading using a customer supplied +3.3V voltage supply. The electrical loopback provides a cost effective low loss method for QSFP/QSFP+ port testing.