Generic QSFP-100G-LB Compatible 100Gbps QSFP28 0W 0dB Passive Loopback Testing Module Dawnray’s QSFP-100G-LB is a 100Gbps Quad Small Form-factor Pluggable QSFP28 loopback module for cost effective 100GBASE Ethernet network port testing. QSFP28 LB routes 103.1Gb/s data stream from transmitting side back to receiving side of the same host port by looping back the electrical signal. This loopback is fully compliant with QSFP28 Multi-Source Agreement (MSA), IEEE 802.3bj 100GBASE-CR4 and CAUI-4 standard. The electrical interface is MSA compliant 38-pin edge type connector and the internal loopback by AC coupling internally. The QSFP28 loopback module implements 4 independent 25.78125Gbps transmit and receive signal channels in each differential trace for an aggregate 103.125Gbps data rate. A bicolor LED indicates the power status. MSA memory map is accessible via 2-wire (TWI/I2C) interface. Our loopback is designed for R&D evaluation, production testing of QSFP28 equipped network routers/switches, blade servers and adapter cards. Protocol-transparent design ensures widely compatibility with various signal standards, including 100 Gigabit Ethernet (100GbE), 4x EDR InfiniBand and proprietary interconnection. Feature Hot pluggable QSFP28 loopback testing module Aggregate data rate up to 103.125Gbps 4x 25.78125Gbps NRZ retimed CAUI-4 electrical interface LED for module state indication MSA memory accessible via 2-wire interface Single 3.3V power supply voltage Extremely low power consumption near 0W Ambient temperature range -20 to 85°C for extended application Compliant with SFF-8665, SFF-8661, SFF-8679, SFF-8636 Compliant with IEEE 802.3bj 100GBASE-CR4 Compliant with RoHS, REACH, CE, FCC standards Application 100G Ethernet Board Level System Testing 56G 4X FDR InfiniBand Specification Part Number QSFP-100G-LB Form Factor QSFP28 Max Data Rate 103.125Gbps DDM/DOM Support Signal Conditioner None Attenuation 0dB Extended Temperature Range -20 to 85°C (-4 to 185°F) Power Consumption 0W
