Overview
With the rapid development of high-speed communication, the performance requirements for high-speed data communication cables are increasing day by day, and the radio performance needs to be tested many times in its research and production stage. The traditional manual test has the complexity of the test environment, the low test efficiency, and the time-consuming, especially in the multiple tests, because of the uncertainties brought in by the manual test, the uncertainty of the test result becomes high, and it will face great difficulties in the mass production of products.
The high-speed cable automatic test system provides a complete solution for the testing needs in the process of high-speed cable research and production. The system is based on a multi-port vector network analyzer, adopts highly customized test fixtures, converts the DUT into a standard RF interface, uses a multi-port RF switch matrix and high-performance amplitude and phase stability RF cable to form a test path, and completes all the path tests of the entire product through radio path switching. During the test, fast SOLT electronic calibration is adopted, and AFR 2 x throughx, de-embedding, port extension, port adjustment and other methods are used to eliminate the test error caused by the test system middleware.
The system provides automated testing software, supports fully automated testing and manual testing, and provides a variety of data processing tools, through the built-in functions of the software, the system supports a variety of cable specifications, a variety of test standards, and provides one-click fully automated testing, which can complete high-precision and full-band testing of high-speed cables, complete full-function index tests such as time domain, frequency domain, and eye diagram, and support the highest test bandwidth frequency up to 67GHz, which can quickly help users solve various cable testing problems in the research and development and production stages.
Automated test system applications
In the R&D stage, we can accurately evaluate the various RF electrical performance of cables, and provide a variety of rich data analysis tools to assist R&D personnel to quickly locate cable problems and help users quickly solve design problems.
In the production stage, it can carry out rapid testing of batch products, provide standardized test reports and data analysis, and can be used as the test standard for the final electrical performance of the production line to ensure that the electrical performance of all products meets the specification requirements and customer-defined requirements.
System features:
Wide range of support, the system can support a variety of types of cable-related index testing;
Customize the test hardware, design the corresponding test fixture and the corresponding switch matrix topology according to the characteristics of the user's DUT;
The test is fast and flexible, and the performance index test of time domain, frequency domain and eye diagram can be automatically completed through a single connection.
A variety of testing methods, the system supports fully automated testing, but also supports manual testing, which can test a certain channel or a single index separately, which is convenient for users to solve analysis-related problems;
Support custom indicator testing, the system is preset with a variety of cable test specifications, and standard or custom tests can be supported through indicator templates;
Through AFR de-embedding, the uncertainty of test data caused by fixtures, cables and other test links can be solved, and the test accuracy can be improved.
Support multi-channel and crosstalk channel calibration, effectively solve the influence of the consistency status of each channel on the test accuracy, and achieve the same detection accuracy of each channel;
Provide a variety of data analysis tools to meet the different needs of users in production testing;
Generate custom reports according to user needs;
Based on the mature software and hardware development platform, the test is stable, reliable and efficient, especially suitable for the use of high-speed cable R&D and production testing.
Test object
Differential lines of each type: difflane
High-speed data interface: minisas minisas HD
Optical module series: QSFP+ QSFP16 QSFP32
HD multi** interface: HDMI
High-speed bus: PCIe
Network: LAN
Test metrics
System composition
Automated testing software
The system automation test software provides a good human-computer interaction interface, intelligent instrument management, test process management, concise test process, and perfect data analysis functions, which can help users complete the system test.
The software supports one-click automated testing, real-time display of index test data and related test graphics during the test process, the graphics are displayed for multiple groups and the same indicator at the same time, quickly analyze the differences between different test pathways, give individual test results and overall test results after the test is completed, and generate corresponding test reports. The software provides a number of auxiliary functions such as 2xthrough, de-embering, and S4P file comparison to help users quickly compare and analyze files.
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