CN110376401A - It is a kind of for detecting the interface conversion line and its application method of serial ports route - Google Patents

Abstract

The present invention relates to a kind of for detecting the interface conversion line of serial ports route, is made of A conversion line and B conversion line；A conversion line is made of three port RS-232 DB9, the network port, grid line components；B conversion line by: three port RS-232 DB9, the network port, grid line components form；1 to No. 7 core wire that 2 to No. 8 terminals of the port RS-232 DB9 press mode of connection and grid line one end needed for calculating successively welds, the wire clip fixed network line of RS-232 DB9 port joint is simultaneously encapsulated by RS-232 DB9 port joint plastic housing, 1 to No. 7 core wire of the grid line other end is compiled neatly, is sequentially inserted into 1 to No. 7 slot of the network port and is crimped.The features such as reasonable, compact-sized with designing, production is simple and at low cost, detection process is simple and convenient, realizes quickly detection, testing result high reliablity.

Description

It is a kind of for detecting the interface conversion line and its application method of serial ports route

Technical field

The invention belongs to computer circuitry detection technique fields, are related to a kind of for detecting the interface conversion line of serial ports route And its application method.

Background technique

RS-232 serial communication route is computer connection PLC main path, and by serial communication, computer acquisition is various Field data issues control command after operation, completes automatic control process.Detection and PLC in computer circuitry In communication fault (mix line fault mainly between internal signal core wire broken string or core wire) investigation, need to RS-232 serial ports Communication line carries out the intact detection of performance, and existing detection method is measured using multimeter.

Before measurement: a root long degree and the comparable temporary track in position are first laid in cabinet, insulating layer is peelled off at temporary track both ends, Temporary track one end is connected on the black meter pen of multimeter, gets out the elementary diagram of RS-232 serial communication route for measuring When verification core wire number.

Measurement: two people of testing staff distinguishes erect-position in RS-232 serial communication route both ends to be measured, and multimeter gear is dialled To resistance grade, route stomidium to be measured is inserted into temporary track one end by a people, and another people finds out pair in other end control elementary diagram The port numbering answered contacts the stomidium with the red test pencil of multimeter, and multimeter shows that the core wire is intact when showing resistance value close to zero, The core wire breaks if resistance value is very big or infinitely great.The survey of RS-232 serial communication route is completed by core by the above operating procedure Amount.Since the DB9 type port organization of RS-232 serial communication route is compact, stomidium Shi Yao little is contacted using test pencil or temporary track The heart, not touch stomidium around or shell, while it is ensured that when reading multimeter resistance value both sides line/test pencil and tested line end Hole contact is good, in order to avoid cause measuring error.

Due to being to have been manually done measurement, the measurement time of the detection method is long, in operating process the end of a thread or Test pencil is easy to accidentally touch line/test pencil of other stomidiums or shell or both sides and tested stomidium is easy poor contact, causes to survey Mistake is measured, that is, can not rule out human error factor, it is seen that the reliability and working efficiency of the detection method are all lower.

In conclusion the existing method measured by multimeter, which detects RS-232 serial communication route, cannot reach to testing result It is reliable to require, and it is low to detect working efficiency.And it cannot be used for detecting using universal ethernet line detector at present RS-232 serial communication route, therefore, it is necessary to carry out innovation improvement to the method for detection RS-232 serial communication route.

Summary of the invention

In order to overcome the disadvantages mentioned above of the prior art, the present invention provides a kind of for detecting the interface conversion line of serial ports route And its application method, it has design reasonable, compact-sized, and production is simple and at low cost, detection process is simple and convenient, realizes fast The features such as speed detection, testing result high reliablity, multimeter is avoided manually to measure issuable mistake by core grafting, for meter The other wireline inspections of calculation machine and malfunction elimination have very high reference value.

The technical solution adopted by the present invention to solve the technical problems is: a kind of for detecting the interface conversion of serial ports route Line is made of A conversion line and B conversion line；A conversion line is by three port RS-232 DB9, the network port, grid line component groups At；B conversion line by: three port RS-232 DB9, the network port, grid line components form；The 2 to 8 of the port RS-232 DB9 1 to No. 7 core wire that number terminals press mode of connection and grid line one end needed for calculating successively welds, and the port RS-232 DB9 connects The wire clip fixed network line of head is simultaneously encapsulated, 1 to No. 7 core wire of the grid line other end by RS-232 DB9 port joint plastic housing It compiles neatly, is sequentially inserted into 1 to No. 7 slot of the network port and crimps.

RS-232 DB9 port material is RS-232 plastic housing DB-9 needle-like connector, and quantity is 2, for connecting grid line With RS-232 serial ports route to be measured, tin wiring to be welded on each binding post of connector.

The network port material is to surpass five class unmasked crystal heads, quantity: 2.For connecting ethernet line detection Instrument and grid line.

The grid line material be surpass cable in five class unmasked rooms, quantity: 2 × 20CM, one end peel off 3CM sheath and 0.3CM core insulation peels off 3CM sheath for connecting the network port for welding the connection port RS-232 DB9, the other end.

The core wire number presses 568B standard sorted.

It is a kind of for detecting the application method of the interface conversion line of serial ports route, be using step:

The network port of A conversion line and B conversion line is inserted into the transmitter and receiver port of ethernet line detector respectively Interior, RS-232C serial port communication line to be measured both ends are inserted into the port RS-232 DB9 of A conversion line and B conversion line respectively, start network The transmitter of circuit detecting instrument, 1 to No. 7 indicator light of transmitter and receiver successively synchronous flashing, illustrates test line at this time It is intact, it is corresponding core wire broken string, if receiver 1 to 7 finger if some indicator light does not work in 1 to No. 7 of receiver Show 1 and lamp display order indicated above confusion in lamp, then core wire corresponding to chaotic indicator light has swinging cross event in test line Barrier.

The beneficial effects of the present invention are: production is simple and at low cost with compact-sized, it is able to achieve quick detection, is detected As a result the features such as safe and reliable, avoids multimeter from manually measuring issuable mistake, lines other for computer by core grafting Road detection and malfunction elimination have very high reference value.

Detailed description of the invention

Fig. 1 is A conversion line and B conversion line structural schematic diagram of the present invention.

In figure: the port 1-RS-232 DB9；The 2- network port；3- grid line.

Specific embodiment

Present invention will be further explained below with reference to the attached drawings and examples.

It is a kind of for detecting the interface conversion line of serial ports route referring to Fig. 1, it is made of A conversion line and B conversion line；A conversion Line is made of 3 three port RS-232 DB9 1, the network port 2, grid line components；B conversion line by: the port RS-232 DB9 1, 3 three network port 2, grid line component compositions；2 to No. 8 terminals of the port RS-232 DB9 1 are by the wiring side needed for calculating Method and 1 to No. 7 core wire of 3 one end of grid line successively weld, and the wire clip fixed network line 3 of 1 connector of the port RS-232 DB9 is simultaneously It is encapsulated by the 1 connector plastic housing of the port RS-232 DB9,1 to No. 7 core wire of 3 other end of grid line is compiled neatly, and network is sequentially inserted into In 1 to No. 7 slot of port 2 and crimp.

1 material of the port RS-232 DB9 is RS-232 plastic housing DB-9 needle-like connector, and quantity is 2, for connecting grid line 3 and RS-232 serial ports route to be measured, tin wiring to be welded on each binding post of connector.

2 material of the network port is to surpass five class unmasked crystal heads, quantity: 2.For connecting ethernet line detection Instrument and grid line 3.

3 material of grid line be surpass cable in five class unmasked rooms, quantity: 2 × 20CM, one end peel off 3CM sheath and 0.3CM core insulation peels off 3CM sheath for connecting the network port 2 for welding the connection port RS-232 DB9 1, the other end.

The core wire number presses 568B standard sorted.

It is a kind of for detecting the application method of the interface conversion line of serial ports route, be using step:

The network port 2 of A conversion line and B conversion line is inserted into the transmitter and receiver port of ethernet line detector respectively Interior, RS-232C serial port communication line to be measured both ends are inserted into the port RS-232 DB9 1 of A conversion line and B conversion line respectively, start net The transmitter of network circuit detecting instrument, 1 to No. 7 indicator light of transmitter and receiver successively synchronous flashing, illustrates by survey line at this time Road is intact, is corresponding core wire broken string if some indicator light does not work in 1 to No. 7 of receiver, if receiver 1 to 7 1 and lamp display order indicated above confusion in indicator light, then core wire corresponding to chaotic indicator light has swinging cross in test line Failure.

The present invention has compact-sized, makes simple and at low cost, is able to achieve quick detection, and testing result is safe and reliable etc. Feature avoids multimeter from manually measuring issuable mistake, wireline inspections other for computer and failure row by core grafting It looks into very high reference value.

Claims (6)

1. a kind of for detecting the interface conversion line of serial ports route, it is characterised in that: be made of A conversion line and B conversion line；A turns Thread-changing is made of three port RS-232 DB9, the network port, grid line components；B conversion line is by the port RS-232 DB9, net Three network port, grid line component compositions；2 to No. 8 terminals of the port RS-232 DB9 by calculate needed for mode of connection with 1 to No. 7 core wire of grid line one end successively welds, and the wire clip fixed network line of RS-232 DB9 port joint simultaneously passes through RS- 232 DB9 port joint plastic housings encapsulation, 1 to No. 7 core wire of the grid line other end are compiled neatly, are sequentially inserted into the 1 to 7 of the network port In number slot and crimp.

2. as described in claim 1 for detecting the interface conversion line of serial ports route, it is characterised in that: the port RS-232 DB9 material Matter is RS-232 plastic housing DB-9 needle-like connector, and quantity is 2, for connecting grid line and RS-232 serial ports route to be measured, connector Tin wiring to be welded on each binding post.

3. as described in claim 1 for detecting the interface conversion line of serial ports route, it is characterised in that: the network port material To surpass five class unmasked crystal heads, quantity: 2, for connecting ethernet line detector and grid line.

4. as described in claim 1 for detecting the interface conversion line of serial ports route, it is characterised in that: the grid line material is Surpass cable in five class unmasked rooms, quantity: 3CM sheath and 0.3CM core insulation are peelled off for welding connection RS- in 2 × 20CM, one end 232 ports DB9, the other end peel off 3CM sheath for connecting the network port.

5. as described in claim 1 for detecting the interface conversion line of serial ports route, it is characterised in that: the core wire number is pressed 568B standard sorted.

6. a kind of as described in claim 1 for detecting the application method of the interface conversion line of serial ports route, it is characterised in that make It is with step:

The network port of A conversion line and B conversion line is inserted into the transmitter and receiver port of ethernet line detector respectively Interior, RS-232C serial port communication line to be measured both ends are inserted into the port RS-232 DB9 of A conversion line and B conversion line respectively, start network The transmitter of circuit detecting instrument, 1 to No. 7 indicator light of transmitter and receiver successively synchronous flashing, illustrates test line at this time It is intact, it is corresponding core wire broken string, if receiver 1 to 7 finger if some indicator light does not work in 1 to No. 7 of receiver Show 1 and lamp display order indicated above confusion in lamp, then core wire corresponding to chaotic indicator light has swinging cross event in test line Barrier.