Skip to content

Generic Compatible SFP-25G-LB 25G SFP28 0dB 0W Passive Loopback Testing Module


direcXource's SFP-25G-LB loopback is a 25Gbps Small Form-factor Pluggable SFP28 loopback module for cost effective port testing. SFP28 LB routes 25Gb/s data stream from transmitting side back to receiving side of the same host port by looping back the electrical signal. The SFP28 loopback module implements transmit and receive differential signal for 25 Gbps data rate. This loopback is fully compliant with SFP28 Multi-Source Agreement (MSA) and IEEE 802.3by 25GBASE-CR standard. The electrical interface is MSA compliant 20-pin edge type connector and the internal loopback by AC coupling internally. Our loopback is designed for R&D evaluation, production testing of SFP28 equipped network routers/switches, blade servers and adapter cards. Protocol-transparent design ensures widely compatibility with various signal standards, including 25 Gigabit Ethernet (25GbE) and 32G/16G Fibre Channel. MSA memory map are accessible via 2-wire Interface (TWI/I2C). An optional bicolor LED light is available to indicate the power status.


Feature

  • Hot pluggable SFP28 form factor
  • Data rate up to 25Gbps
  • 25.78125Gbps NRZ retimed 25GUAI 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-8402, SFF-8432, SFF-8419, SFF-8472
  • Compliant with IEEE 802.3by 25GBASE-CR
  • Compliant with RoHS, REACH, CE, FCC standards

Application

  • Port Testing
  • Board Level System Testing

Specification

Part Number SFP-25G-LB Form Factor SFP28
Max Data Rate 25Gbps DDM/DOM Support
Signal Conditioner None Attenuation 0dB
Extended Temperature Range -20 to 85°C (-4 to 185°F) Power Consumption 0W