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Industry’s First 10 Gigabit Ethernet Long Reach Multimode (LRM) Test System

Circadiant's Hydra MTS™ brings a new level of integration that enables fast, easy and accurate compliance testing of 10 Gigabit components, modules and systems per the Long Reach Multimode (LRM) IEEE 802.3aq draft standard. Hydra MTS features fully compliant stress testing, variable pattern generation, BER vs OMA, and automated TWDP (Transmitter Wavelength Dispersion Penalty) measurements. Hydra MTS generates fully compliant test signals including all three stressors (pre-cursor, sysmetric, and post-cursor), additional noise source, and jitter per the 802.3aq draft standard. Proprietary TWDP measurement software automatically controls an external scope and corrects for the measurement limitations of sampling scopes to deliver accurate TWDP results. This all-in-one solution provides industry leading repeatability and solves the issues of calibration, instrument drift, and system-to-system correlation that normally slow design cycles. Hydra MTS can make your compliance testing fast, easy and accurate.

• Comprehensive LRM 802.3aq Compliance Test System
• Stressed receiver testing
• Transmitter testing
• Fully compliant stressors
• Pre-cursor
• Symmetric
• Post-cursor
• Variable pattern generation
• Fully automated receiver Pass/Fail results
• Automated TWDP measurements via an external scope
• Proprietary TWDP correction for sampling scopes
• Future-proof modular design
• Optical and electrical configurations
• Xenpak
• XFP
• EDC

The LRM standard was conceived to ensure a 10G optical plug-and-play architecture over a minimum of 220 meters of low grade multimode fiber. The standard defines both the transmitter and receiver performance requirements. Given the difficult dispersion characteristics of multimode fiber the standards body created three stressors to mimic the worst case dispersion effects. The stressed signals must conform to a specific shape and TWDP value. The standard recommends a test configuration consisting of multiple instruments required for tuning the stressed signals and measuring a receiver’s BER performance. Although the test is very thorough in guaranteeing LRM connectivity, the complexity of the test and the instrument to instrument variations will make testing and industry correlation difficult. Hydra MTS aims to solve these issues.