SFP+ Tester Bundle With Signal Compensation
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Solution Overview
Problem
Current testing equipment for electro-optical equipment, particularly SFP+ transceiver ports, is costly and lacks scalability, making it inefficient for comprehensive testing of signal transmission and reception across multiple ports.
Innovation Solution
A system comprising two testing modules with a communications link, each equipped with a SFP+ interface and a signal processing circuit that compensates and modifies signals according to predetermined parameters, allowing for bi-directional testing of SFP+ transceiver device ports to assess compliance with SFP+ standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specialized large motherboard or card based testing equipment is used, then signal generation and analysis capability is achieved, but cost increases and scalability deteriorates
Solution Approach 1:
The testing equipment is divided into separate testing modules that can be independently configured and combined. Each module can be dedicated to specific testing functions (transmitter testing, receiver testing, or both), allowing the system to be scaled by adding or removing modules as needed rather than requiring a complete large motherboard system.
Solution Approach 2:
The testing modules are designed with universal interfaces and standardized signal processing circuits that can test multiple types of transceivers (optical and electrical) across different data rates. The same module architecture can be used for various transceiver types, eliminating the need for specialized equipment for each transceiver variant.
2Reliability
If comprehensive testing of multiple ports is performed, then testing coverage is improved, but testing time and resource requirements increase
Solution Approach 1:
Multiple testing modules can operate independently and simultaneously on different ports or transceiver types. This parallel architecture allows comprehensive testing coverage across multiple ports without sequential testing delays, as each module handles its assigned ports concurrently.
Solution Approach 2:
The testing modules perform preliminary signal compensation and conditioning before actual measurement, preparing signals in advance to accelerate the testing process. Pre-computed test patterns and predetermined modification parameters are applied to reduce real-time processing requirements during actual testing.
Data Source
AI summary
An apparatus for testing multiple Small Form-Factor Pluggable Plus (SFP+) ports comprising: a first testing module; a second testing module; and a communications link coupled with the first and the second testing modules; wherein each of the testing modules includes: a SFP+ interface connectable to a port under test (PUT), a signal processing circuit including: a signal compensator configured to perform signal compensation on a signal received from the other testing module, and a signal modifier configured to: modify the compensated signal according to a set of predetermined modification parameters, and transmit the modified signal to the PUT.