Two-way monitoring device of rs232 serial port test system

Abstract

The invention discloses a bidirectional monitoring device of an RS232 serial port test system. The bidirectional monitoring device comprises a circuit board; three parallel circuits are horizontally arranged on the circuit board; the two ends of a first circuit respectively extend out of the two sides of the circuit board; the right end of a second circuit extends out of the right side of the circuit board; the left end of the second circuit is arranged inside the circuit board; the left end of a third circuit extends out of the left side of the circuit board; the right end of the third circuit is arranged inside the circuit board; two parallel circuits are longitudinally arranged on the circuit board, respectively a fourth circuit and a fifth circuit; the upper end of the fourth circuit is arranged inside the circuit board and connected with the first circuit; the lower end of the fourth circuit extends out of the lower side of the circuit board; the upper end of the fifth circuit is arranged inside the circuit board; the lower end of the fifth circuit extends out of the lower side of the circuit board; the right end of the third circuit is connected with a single-pole double-throw switch capable of rotating up and down. The bidirectional monitoring device disclosed by the invention has the beneficial effects that monitoring equipment can send data to tested equipment or the test system, and the equipment needs not to be reconnected.

Description

technical field [0001] The invention belongs to the technical field of electronic devices and relates to a two-way monitoring device of an RS232 serial port testing system. Background technique [0002] The test system based on the RS232 serial port is generally based on a one-to-one exclusive mode in which an RS232 serial port is connected to a serial port of a device under test. Generally, the test system sends instructions to the device under test through the serial port and receives reports from the device under test through the serial port. data to implement the entire testing process. During the debugging process of the equipment under test and the test system, it is usually necessary to monitor the data of the serial port. The monitoring device is also an RS232 serial port. The two signal lines of the device are used for receiving and monitoring, and cannot send instructions or data to the test system or the device under test. [0003] Since the above-mentioned simp...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a two-way monitoring device for the RS232 serial port test system, which solves the problem that the RS232 monitoring device can only receive and monitor the two signal lines of the test system and the device under test, and cannot send instructions or data to the test system or the device under test The problem

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