CN205017322U - A interface converting device and 2M line capability test system for 2M line capability test - Google Patents
A interface converting device and 2M line capability test system for 2M line capability test Download PDFInfo
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- CN205017322U CN205017322U CN201520627941.8U CN201520627941U CN205017322U CN 205017322 U CN205017322 U CN 205017322U CN 201520627941 U CN201520627941 U CN 201520627941U CN 205017322 U CN205017322 U CN 205017322U
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- 238000012360 testing method Methods 0.000 title abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000011056 performance test Methods 0.000 claims description 29
- 239000013078 crystal Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000193935 Araneus diadematus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The utility model discloses an interface converting device and 2M line capability test system for 2M line capability test, the device has the plain conductor of insulating coating, female head and two -way public head including quartzy head, two root zones, two plain conductor's one end all is connected with quartzy head, two plain conductor's the other end is connected with core and the shell of female head respectively, mother first with be used for being connected the first connection of two -way public affairs of 2M line of awaiting measuring. The utility model discloses an use the core and the shell of the female head of two plain conductor turn -on connection wares, use in 2M line capability test's interface converting device simple structure, and combine main tester and the remote testing ware of this interface converting device with the tester, in order to be applied to 2M line capability test system, the operation is thus simple, the adaptability of test environment has been increased, the test reliability has been improved simultaneously, the potential safety hazard that can directly get rid of transmission path, ensure electric power communication system, electric power system's safety and stability operation.
Description
Technical field
The utility model belongs to communication technical field, particularly a kind of interface switching device for the performance test of 2M line and 2M line Performance Test System.
Background technology
2M line and coaxial cable, also known as E1 line, are the stube cables of the E1 interface that the communications industry generally uses, the i.e. PCM system of 1 2M, it is divided into 0 to 31 time slots (64Kb/s) 64*32=2048Kb/s, reprints books in a reduce format and is commonly called as 2M, can the multiple business such as voice-bearer, packet switching.
In real work, often can carry out performance test to 2M line, to judge whether 2M line exists the quality problems such as open circuit, short circuit, virtual connection.Method of testing relatively more conventional in current work uses universal instrument to test.Because 2M line is equivalent to two parallel wires, when universal instrument is adjusted to resistance grade, its equivalent circuit theory as shown in Figure 1, a, b represent the two ends of a wherein wire in 2M line, and c, d represent the two ends of another root wire in 2M line, as can be seen from Figure, in order to prove the formedness of 2M line, need test two wires and whether have open circuit or short circuit, therefore at least need to carry out 4 test operations, test is got up just more loaded down with trivial details like this.
In addition, the length of nearly 20 meters that what 2M line was the longest have, and the test pencil line of universal instrument only has 110 centimetres, obviously not enough.Although scene can with wire jumper as extended line, because node is too much and apart from long, the therefore large heavy discount of reliability; And two people operate interchange to be got up also to there is very large problem, has had a strong impact on the testing time.
Therefore, traditional universal instrument test, number of operations is too much, inefficiency, and when site environment is complicated, shortcoming is obvious, and reliability is low.
Utility model content
Linearly can more loaded down with trivial details, technical problem that bad adaptability, reliability are low for the universal instrument test 2M existed in prior art, the utility model provides a kind of easy to operate 2M line performance testing device, can improve reliability and the environmental suitability of the performance test of 2M line.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of interface switching device for the performance test of 2M line, comprise crystal head, two plain conductors with insulating coating, female and two-way males, one end of two described plain conductors is all connected with described crystal head, the other end of two described plain conductors is connected with the core of described female and shell respectively, and described female connects with the described two-way male for being connected 2M line to be measured.
As preferably, described female is bayonet nut connector female.
As preferably, described two-way male is bayonet nut connector male.
As preferably, described crystal head is RJ45 connector.
As preferably, described plain conductor is netting twine.
A kind of 2M line Performance Test System, comprise main tester and the remote tester of tester, also comprise two above-mentioned interface switching devices for the performance test of 2M line, and the described interface switching device for the performance test of 2M line also has and is respectively used to be connected with 2M line to be measured and two interfaces that main tester or remote tester connect.
Compared with prior art, the beneficial effect that the utility model has is: the utility model passes through core and the shell of use two plain conductor conduction connector females, the interface switching device structure being used in the performance test of 2M line is simple, and the main tester of this interface switching device and tester and remote tester are combined, to be applied to 2M line Performance Test System, simple to operate, add the adaptability of test environment, no matter how noisy on-the-spot actual environment have, how far distance has, all practicable measurement, improve testing reliability simultaneously, directly can get rid of the potential safety hazard of transmission channel, guarantee power communication system, the safe and stable operation of electric power system.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams that universal instrument of the prior art carries out the performance test of 2M line;
Fig. 2 is the 2M linearly energy test system and test circuit theory diagrams in the utility model;
Fig. 3 is 2M interface switching device in the utility model and 2M line Performance Test System frame structure schematic diagram.
In figure:
1-crystal head; 2-plain conductor;
3-female; The two-way male of 4-;
5-2M line to be measured;
The main tester of 6-; 61-near-end indicator light;
7-remote tester 71-far-end indicator light.
Embodiment
For making those skilled in the art better understand the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 3, embodiment of the present utility model discloses a kind of interface switching device for the performance test of 2M line, it comprises crystal head 1, two plain conductors 2, female 3 and two-way males 4, one end of two plain conductors 2 is all connected with crystal head 1, the other end of two plain conductors 2 is connected with the core of female 3 and shell respectively, and female 3 connects with the two-way male 4 for being connected 2M line (coaxial cable) 5 to be measured.
In order to improve the reliability of test, female 3 selects BNC connector, and BNC connector is a kind of connector for coaxial cable, full name BayonetNutConnector (bayonet nut connector, this title has vividly described out this joints).Corresponding with bayonet nut connector female, select bayonet nut connector (BNC) male as two-way male 4, the matching degree that male is connected with female 3 can be improved.
Crystal head 1 selects RJ45 connector, can reduce costs.
Plain conductor 2 has insulating coating, such as, can be netting twine.
A kind of 2M line Performance Test System, it comprises the main tester 6 of tester, remote tester 7 and two interface switching devices, and interface switching device has and is respectively used to be connected with 2M line 5 (coaxial cable) to be measured and two interfaces that main tester 6 or remote tester 7 connect.
Tester is generally used for be tested telephony interface, network interface, the tester that the present embodiment is selected is expert's tester (a kind of comparatively common small-sized tester), generally use when in prior art, the connectedness of network technician to netting twine circuit is tested, it comprises main tester 6 and remote tester 7, expert's tester make use of its one end generation signal in the present embodiment, the major function of other end feedback signal, the internal structure of expert's tester just repeats no more at this.
The utility model by 2M line Performance Test System to the method that 2M line carries out performance test is, 2M line 5 (coaxial cable) to be measured is accessed main tester 6 and remote tester 7 respectively, toggle switch ON is proper testing speed, and S key is at a slow speed or manual test.If the number of two test leads (main tester 6 and remote tester 7) flashes one by one from 1 to 8 simultaneously, just represent that 2M line 5 to be measured is normal; If the numerical order of two test leads is chaotic, just represent the method fault of wiring or the connection of cross spider; If there is some or multiple lamp not work, just represent that root line or line of following do not connect more.
Apply 2M line Performance Test System of the present utility model and carry out the circuit theory diagrams of 2M line performance test as shown in Figure 2, a, b represent the two ends of a wherein wire in 2M line, c, d represent the two ends of another root wire in 2M line, as can be seen from Figure, the performance of 2M line is judged by the display accessing the far-end indicator light 71 on the remote tester 7 of 2M line and the near-end indicator light 61 on main tester 6, result is very clear, is convenient to judge.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection range of the present utility model is defined by the claims.Those skilled in the art can in essence of the present utility model and protection range, and make various amendment or equivalent replacement to the utility model, this amendment or equivalent replacement also should be considered as dropping in protection range of the present utility model.
Claims (6)
1. the interface switching device for the performance test of 2M line, it is characterized in that, comprise crystal head, two plain conductors with insulating coating, female and two-way males, one end of two described plain conductors is all connected with described crystal head, the other end of two described plain conductors is connected with the core of described female and shell respectively, and described female connects with the described two-way male for being connected 2M line to be measured.
2. the interface switching device for the performance test of 2M line according to claim 1, is characterized in that, described female is bayonet nut connector female.
3. the interface switching device for the performance test of 2M line according to claim 1, is characterized in that, described two-way male is bayonet nut connector male.
4. the interface switching device for the performance test of 2M line according to claim 1, is characterized in that, described crystal head is RJ45 connector.
5. the interface switching device for the performance test of 2M line according to claim 1, is characterized in that, described plain conductor is netting twine.
6. a 2M line Performance Test System, comprise main tester and the remote tester of tester, it is characterized in that, described 2M line Performance Test System also comprises two interface switching devices for the performance test of 2M line according to any one of claim 1 to 5, and the described interface switching device for the performance test of 2M line also has and is respectively used to be connected with 2M line to be measured and two interfaces that main tester or remote tester connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627941.8U CN205017322U (en) | 2015-08-19 | 2015-08-19 | A interface converting device and 2M line capability test system for 2M line capability test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627941.8U CN205017322U (en) | 2015-08-19 | 2015-08-19 | A interface converting device and 2M line capability test system for 2M line capability test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017322U true CN205017322U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520627941.8U Active CN205017322U (en) | 2015-08-19 | 2015-08-19 | A interface converting device and 2M line capability test system for 2M line capability test |
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| CN (1) | CN205017322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578219A (en) * | 2020-11-24 | 2021-03-30 | 江苏核电有限公司 | Detection method for converting Micro-D into RJ45 interface network cable |
-
2015
- 2015-08-19 CN CN201520627941.8U patent/CN205017322U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578219A (en) * | 2020-11-24 | 2021-03-30 | 江苏核电有限公司 | Detection method for converting Micro-D into RJ45 interface network cable |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |