SFP28 25G Passive Loopback

Description

SFP28 25G Passive Loopback Module – Diagnostic and Validation Tool for High-Speed Network Interfaces

The SFP28 25G Passive Loopback Module is a compact, hot-pluggable diagnostic tool designed for testing and validating 25Gbps SFP28 ports in Ethernet, Fibre Channel, InfiniBand, and SONET/SDH environments. Fully compliant with the SFF-8402 MSA specification, this module simulates a live transceiver connection without active components, enabling system-level testing of signal integrity, port functionality, and thermal behavior.

Key Features:

• Interface Compatibility:
  • Compliant with SFP28 25G (SFF-8402) mechanical and electrical specifications
  • Supports SONET/SDH, Ethernet, Fibre Channel (FC), and InfiniBand (IB) protocols
• Performance:
  • Operates at data rates up to 25Gbps
  • Supports full 25Gbps loopback for signal path verification
• Signal Attenuation Options:
  • Available in 0 dB, 3 dB, 6 dB, or customized attenuation levels
  • Enables flexible simulation of real-world signal loss
• Power Consumption:
  • Passive design with Level 1 to Level 3 power profiles or 0W consumption
  • Ideal for thermal and power budget testing
• EEPROM & Memory:
  • Includes MSA-compliant EEPROM
  • Supports custom memory maps for vendor-specific diagnostics and configuration
• Mechanical Design:
  • Hot-pluggable form factor for easy insertion/removal during live testing
  • Fully compliant with MSA footprint for seamless integration
• Environmental Tolerance:
  • Operates in temperature ranges from 0°C to 80°C
  • Suitable for lab, production, and field environments
• RoHS Compliant:
  • Manufactured in accordance with global environmental standards

Applications:

• System Diagnostics: Verifies port functionality, signal integrity, and thermal behavior in switches, routers, and NICs
• Production Testing: Used in automated test environments for validating SFP28 cages and host boards
• R&D and QA Labs: Simulates transceiver presence for firmware development, compliance testing, and performance tuning
• OEM Integration: Ideal for hardware vendors requiring customizable loopback modules for platform validation