CN200993779Y

CN200993779Y - Computer serial single test module

Info

Publication number: CN200993779Y
Application number: CN 200620161446
Authority: CN
Inventors: 李洪升; 李莉
Original assignee: Shandong Chaoyue Numerical Control Electronics Co Ltd
Current assignee: Shandong Chaoyue Numerical Control Electronics Co Ltd
Priority date: 2006-12-22
Filing date: 2006-12-22
Publication date: 2007-12-19
Anticipated expiration: 2016-12-22

Abstract

The utility model proposes a computer serial single test module, of which a 422 serial trapezoid head, a 485 serial trapezoid head and a power indicating lamp are positioned on the panel in front of the casing, and a monolithic processor and a 12V power adaptor are positioned within the casing. The 485# internal connecting line is linked between signal interfaces of the 485 serial trapezoid head and the monolithic processor. 3 signal lines, saying DATA-, DATA+ and signal ground, of the monolithic processor, are respectively connected with Pins 1, 2 and 3 of the 485 trapezoid head. The 485 serial on the module is connected with the signal line of 485 serial port of the computer to be measured through the 485 serial connecting line. Pin 1 & 4 and Pin 2 & 3 of the serial 422 are separately connected Pins 1 & 4 and Pins 2 and 3 of the two-way dual shorting switch. Compared with the prior art, the computer serial single test module is provided with the advantages that the single machine test can be realized through a test software and a test module, the volume is small, the operation is agile, easy, safe and reliable, and the maintenance is simple. So, the utility model can be widely used in computer production and after-sale maintenance service and is provided with good value of popularization.

Description

Serial ports of computers single machine test module

1, technical field

The present invention relates to a kind of computing machine production test technology, specifically a kind of serial ports of computers single machine test module.

2, background technology

422,485 serial ports of computing machine are in the performance test process, need 2 computer by serial to couple together by the external connection signal wire, whether the data communication with two computing machines of a serial ports testing software test is correct, determine whether this port is working properly, two machines bother surveying in the actual production test very much, test trouble and inconvenience especially on automatic production line especially, the utmost point is unfavorable for the large-scale production and the performance test of computing machine.In production and after-sales service process, if single machine, the test of this serial ports very inconvenience especially so.

3, summary of the invention

Serial ports of computers single machine test module of the present invention, its structure is by line inside and outside housing, two serial ports bathrocephalies, two-way duplex short circuiting switch, power light, supply socket, single-chip microcomputer, pilot lamp power intraconnections, 485 serial ports, and outer line of 422 serial ports and 12V power supply adaptor are formed.

422 serial ports bathrocephalies, 485 serial ports bathrocephalies, power light is provided with on the panel of housing front portion, single-chip microcomputer and 12V power supply adaptor are arranged on the interior circuit board of housing, the 12V power supply adaptor is to power for the single-chip microcomputer in the module by the power supply intraconnections, power light connects single-chip microcomputer by intraconnections, 485 intraconnections are connected between 485 serial ports bathrocephalies and the single-chip microcomputer signaling interface, single-chip microcomputer passes through DATA-, 3 signal wires of DATA+ and signal ground respectively with 1 of 485 bathrocephalies, 2,3 pins connect, 485 serial ports are connected with the signal wire of computing machine 485 serial ports to be measured by the outer line of 485 serial ports on the module, with 1 pin and 4 pins of 422 serial ports, 2 pins and 3 pins respectively with 1 of two-way duplex short circuiting switch, 4 and 2,3 pin connect.

Test module of the present invention mainly is to use single-chip microcomputer to receive the data that outer computer sends by 485 serial ports bathrocephalies, again these data are sent to outer computer by 485 serial ports bathrocephalies, after outer computer receives data, 485 serial ports that prove this outer computer are working properly, so just formed the analog machine of one 485 serial ports test, with single-chip microcomputer and peripheral concentrated being arranged on the small shell of parts, make serial ports of computers single machine test module, not only can easily test 422 serial ports but also can easily test 485 serial ports.

4, description of drawings

Fig. 1 is the structural representation of module housing and enclosure interior parts;

Fig. 2 is the structural representation of module housing front panel;

Fig. 3 is the mount structure figure of two-way duplex short circuiting switch.

5, embodiment

Serial ports of computers single machine test module of the present invention is by housing 1,422 serial ports bathrocephalies 3,485 serial ports bathrocephalies 2,422 serial ports bathrocephaly short circuiting switches 4, power light 6, supply socket 5, single-chip microcomputer 7 and 12V power supply adaptor 8 are formed, 422 serial ports bathrocephalies 3,485 serial ports bathrocephalies 2, power light 6 is provided with on the panel of housing 1 front portion, single-chip microcomputer 7 and 12V power supply adaptor 8 are arranged on the interior circuit board 9 of housing, 485 serial ports sending and receiving programs of useful C language compilation in single-chip microcomputer 7 chips, 12V power supply adaptor 8 is to power for the single-chip microcomputer 7 in the module by the power supply intraconnections, power light 6 connects single-chip microcomputer 7 by intraconnections, 485 intraconnections are connected between 485 serial ports bathrocephalies 2 and the single-chip microcomputer signaling interface, definition according to 485 rs 232 serial interface signals, single-chip microcomputer 7 passes through DATA-, 3 signal wires of DATA+ and signal ground respectively with 1 of 485

bathrocephalies

2,2,3 pins connect, 485 serial ports are connected 1 of two-way duplex short circuiting switch 4 by the outer line of 485 serial ports with the signal wire of computing machine 485 serial ports to be measured on the module, 4 pin and 2,3 pin connect 1 pin and 4 pins of 422 serial ports respectively, 2 pins and 3 pins.

Embodiment

Serial ports of computers single machine test module 485 serial ports testing procedures are as follows: with 485 serial ports lines the test computer main frame is connected with test module, the test computer main frame sends data to module by 485 interfaces, module is temporarily stored in data in the single-chip microcomputer after receiving, again the data that receive are sent back to test computer in 1 second, test computer receives the data of original transmission, proves that then 485 serial communications are normal.

Serial ports of computers single machine test module 422 serial ports testing procedures are as follows:

(1) 422 serial ports by 422 serial ports line test computers connect;

(2) 422 serial ports bathrocephalies on the module use two-way duplex short circuiting switch with 1 pin and 4 pins, 2 pins and 3 pin short circuits according to the definition of 422 rs 232 serial interface signals transmission;

(3) 422 serial ports test: be connected with 422 serial ports of computing machine to be measured with the external line of 422 serial ports, survey the transmission of data and receive the single machine test of realizing 422 serial ports by the serial ports testing software.

Computer serial port single machine test module of the present invention is compared with existing technology the advantage that has, by one Individual testing software and a test module can be realized single machine test, and it is little to have a volume, flexible operation Make things convenient for, be easy to maintenance, safe and reliable, can extensively be used in computer production and the after-sales maintenance service, have Good promotional value.

Claims

1, serial ports of computers single machine test module, comprise housing, 422 serial ports bathrocephalies, 485 serial ports bathrocephalies, 422 serial ports bathrocephaly short circuiting switches, power light, supply socket, single-chip microcomputer and 12V power supply adaptor are formed, it is characterized in that 422 serial ports bathrocephalies, 485 serial ports bathrocephalies, power light is provided with on the panel of housing front portion, single-chip microcomputer and 12V power supply adaptor are arranged on the interior circuit board of housing, the 12V power supply adaptor is by power supply intraconnections and single-chip microcomputer power supply, power light connects single-chip microcomputer by intraconnections, 485 intraconnections are connected between 485 serial ports bathrocephalies and the single-chip microcomputer signaling interface, the DATA-of single-chip microcomputer, 3 signal wires of DATA+ and signal ground respectively with 1 of 485 bathrocephalies, 2,3 pins connect, 485 serial ports are connected 1 pin of 422 serial ports and 4 pins by the outer line of 485 serial ports with the signal wire of computing machine 485 serial ports to be measured on the module, 2 pins and 3 pins respectively with 1 of two-way duplex short circuiting switch, 4 and 2,3 pin connect.