QSFP/QSFP+ Passive Electrical Loopback 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 Loopback is packaged in a standard MSA housing compatible with all QSFP/QSFP+ ports. Transmit data from the host is electrically routed,Website: , (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. It provides QSFP/QSFP+ power Class 1, 2, 3 (standard), or 4 loading using a customer supplied +3.3V voltage supply.Features• Customizable power consumption• Dual LED indicator• Custom Memory Maps• Built in diagnostic functions• Supports 40Gbps total data rate• Host-pluggable MSA footprint• Full SFF-8436 MSA Compliant• Temperature range from 0◦ to 80◦C• No reference clock required• Compliant with SONET, SDH, GBE, FC• MSA Compliant EEPROM• Economical QSFP/QSFP+ Port Testing• Custom Memory Maps• Board Level System Testing• Excellent Signal IntegrityApplication• QSFP Port/System Testing• ITU-T Recommendation G.957 (STM-1, 4 & 16)• Ethernet IEEE 802.3 (Gigabit, 10 Gigabit and 40 Gigabit Ethernet) SDR, •DDR and QDR• SONET, SDH, GBE, FC Support, Infiniband