Portable code error tester

Abstract

The invention provides a portable code error tester, which is small in size, light in weight, low in cost and portable in carriage. The invention comprises a single-chip microcomputer, a power supply module, a clock, a reset and watchdog circuit, a data memory, a liquid crystal display, a real-time clock module, a code error rate testing module, a 2M interface circuit, a parallel interface expansion module, a keyboard, an indication lamp, a decoding circuit, and an interruption expansion circuit. The signal input end of the single-chip microcomputer is connected respectively with the power supply module, the clock, and the reset and watchdog circuit. The single-chip microcomputer is connected through a data bus with the data memory, the liquid crystal display, the real-time clock module, the code error rate testing module, and the 2M interface circuit. The code error rate testing module and the 2M interface circuit are mutually connected. The single-chip microcomputer is connected with the parallel interface expansion module; the parallel interface expansion module is connected respectively with the keyboard and the indication lamp. The signal output end of the single-chip microcomputer is connected with the decoding circuit, and the signal output end of the interruption expansion circuit is connected with the signal input end of the single-chip microcomputer.

Description

technical field [0001] The invention belongs to the technical field of digital communication test instruments, in particular to a portable error code tester. Background technique [0002] With the development of communication test technology, communication test instruments show some common development trends and characteristics. First of all, the software and intelligence of test equipment are improving. Secondly, due to the rapid development of communication technology and the relatively expensive communication test instruments, considering the investment cost, the instrument developer must consider the test function of the test equipment and target the corresponding field and cost. In addition, the design idea of ​​small and portable is another trend and characteristic of the development of network test equipment. Due to the mobility of network testing, it is necessary to test at different test points of the same network, or to test a network with a large physical distan...

AI Technical Summary

Problems solved by technology

Secondly, due to the rapid development of communication technology, at the same time, communication test instruments are relatively expensive. Considering the investment cost, the instrument developer must consider the test function of the test equipment.

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