CN1571521A - A testing system of digital subscriber line and testing method - Google Patents
A testing system of digital subscriber line and testing method Download PDFInfo
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- CN1571521A CN1571521A CN 03147382 CN03147382A CN1571521A CN 1571521 A CN1571521 A CN 1571521A CN 03147382 CN03147382 CN 03147382 CN 03147382 A CN03147382 A CN 03147382A CN 1571521 A CN1571521 A CN 1571521A
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Abstract
This invention discloses a test system and testing method of digital customer line. The test system includes catch line matrix equipment and test module. The matrix is connected between wiring and terminal broadband equipment, and is used to catch the specified customer lines. Then the lines are sent to test module to be tested. The test module is set in the broadband equipment, and is connected to main control module and the matrix device that in the broadband equipment by interfaces. This invention has facilitated the test system greatly, reduced the complexity and cost by setting testing module in the broadband equipment.
Description
Technical field
The present invention relates to the broadband services measuring technology, particularly a kind of test macro of digital subscriber line and method of testing.
Background technology
In the telecommunication service field, operator is by a pair of twisted-pair feeder, provide broad band telecommunication service and arrowband telecommunication service simultaneously to the user, professional as plain old telephone increase ADSL (ADSL over POTS), ISDN increase ADSL (ADSL over ISDN), plain old telephone increase VDSL (VDSL over POTS), ISDN increase VDSL (VDSL over ISDN) etc., such application is quite general (among the present invention, ADSL, VDSL are referred to as xDSL, i.e. the X digital subscriber line).
As shown in Figure 1, xDSL signal and POTS/ISDN signal coexistence are in a user outline, in the local side side, Splitter (SPL) in the broadband access equipment (DSLAM) comes wide, narrow traffic differentiation, be sent to broadband services plate (xDSL business board) respectively and narrowband service board (POTS/ISDN business board) is handled, and the user is distolateral, and separator (SPL) then is sent to Remote Interface Unit (RTU) and phone with isolated wide, narrow band service.
In the operation and maintenance process of this type of business, declare fault such as the user, often need measure (as: line voltage distribution parameter, line resistance parameter, line capacitance parameter, circuit background noise, the line-to-ground degree of balance etc.) to the subscriber's line parameter.According to these supplemental characteristics, can judge the quality and the failure condition of circuit, which kind of need to determine send the worker to do fault restoration.But the early stage digital subscriber line access multiplex of making (DSLAM also claims the local side broadband device) does not support to grab line function (grasp subscriber's line and give inside or external test facility), causes these DSLAM equipment can't support automatic line test.How to address this problem, design a good automatic circuit measuring system, will have influence on aspects such as the O﹠M cost of operator and service quality to a great extent.
At present line testing is mainly contained following two kinds of technical schemes:
Technical scheme one:
Consult shown in Figure 2ly, between original distributing frame (MDF) and local side DSLAM equipment, insert a testing equipment.Testing equipment is made up of line capture module module and test module two parts, the subscriber's line that the line capture module module grasps certain appointment is given line parameter circuit value tests such as resistance, electric capacity, voltage tester and circuit background noise that test module, test module carry out circuit, longitudinal balance degree.But there is following shortcoming in this kind scheme:
(1) testing equipment will be finished functions such as the communicating by letter of power taking and DSLAM, the release of circuit extracting/circuit, line test, testing equipment more complicated;
(2) port number huge (a pair of port of each CU) that comprises of testing equipment, therefore, testing equipment is bulky, costs an arm and a leg, and the cost of sharing each user equally is higher.
Technical scheme two:
Consult shown in Figure 3ly, between original distributing frame (MDF) and local side DSLAM equipment, insert a line capture module battle array equipment, simultaneously at a line capture module device external configuration test instrumentation (or testing equipment).The subscriber's line that line capture module equipment grasps certain appointment is given line parameter circuit value tests such as resistance, electric capacity, voltage tester and circuit background noise that testing equipment, testing equipment carry out circuit, longitudinal balance degree.This kind scheme also has following deficiency:
(1) line capture module equipment and testing equipment need power supply separately; Grabbing line equipment needs to communicate by letter with DSLAM respectively with testing equipment.The complexity of whole system further increases;
(2) grab the port number huge (a pair of port of each CU) that line equipment comprises, therefore, testing equipment is bulky, and price is higher.In addition, need special-purpose testing equipment (test instrumentation), and special test equipment is generally relatively more expensive, therefore, shares each user's cost height equally.
Summary of the invention
The object of the present invention is to provide a kind of test macro and method of testing of digital subscriber line, to solve the complicated and high problem of cost of test macro in the prior art.
A kind of test macro of digital subscriber line, comprise line capture module equipment and test module, this line capture module equipment is connected between distributing frame and local side broadband device, the subscriber's line that is used to grasp appointment is tested to test module, described test module is built in the described local side broadband device, and is connected with described line capture module equipment with the main control module of local side broadband device by interface.
According to above-mentioned test macro:
Interface between described test module and the line capture module equipment comprises:
Communication interface, the local side broadband device is by this interface and line capture module device talk;
Power supply interface, the local side broadband device provides power supply by this interface to line capture module equipment;
The test bus interface, test module is tested the user outline that line capture module equipment grasps by this interface.
Be connected by connector between described test module and the described main control module, be incorporated on this connector at three road signals of main control module side with communication interface, power supply interface and test bus interface.
A kind of method of testing of digital subscriber line is grasped the subscriber's line of appointment and tests to test module by the line capture module equipment between distributing frame and local side broadband device, the method comprising the steps of:
The main control module of local side broadband device is initiated test command;
Test module is by the action of interface notice line capture module equipment;
Line capture module equipment grasps the user outline of appointment to test bus;
The line test module is tested user outline by test bus, and test result is reported main control module.
According to above-mentioned method of testing:
Described test result is reported main control module, handle by main control module.
Described test result reports Centralized Maintenance System For by main control module, is handled by this system.
The power supply of described line capture module equipment is provided by the local side broadband device.
Be incorporated on the physical connector in communication, power supply and the test signal of main control module side the test module side.
The present invention has following beneficial effect:
(1) the local side broadband device has been simplified the test macro complexity by the built-in testing module;
(2) power supply and communication interface are provided for the machine room line capture module by the local side broadband device, have simplified the complexity of line capture module equipment;
(3) test data can be unified to handle or report the processing of 112 centralized maintenance platforms by the DSLM webmaster;
(4) the present invention has accomplished that cost and function take into account.
Description of drawings
Fig. 1 is for providing the networking diagram of broadband services and narrow band service simultaneously to the user in the prior art;
Fig. 2 carries out testing principle figure for subscriber's line among a pair of Fig. 1 of prior art;
Fig. 3 carries out testing principle figure for subscriber's line among two couples of Fig. 1 of prior art;
Fig. 4 carries out testing principle figure for the present invention to subscriber's line;
The connector construction figure that Fig. 5 uses for the present invention;
Fig. 6 is a test flow chart.
Embodiment
Consult shown in Figure 4ly, test macro of the present invention comprises line capture module equipment and test module.Line capture module equipment is connected between distributing frame and the local side broadband device, and the subscriber's line that is used to grasp appointment is tested to test module.Test module is arranged in the local side broadband device, and test module is connected with line capture module equipment with the test bus interface by communication interface, power supply interface, and line capture module equipment is connected by the main control module of interface with the local side broadband device.
The local side broadband device provides power supply for line capture module equipment by power supply interface, with cost and the complexity that reduces line capture module equipment.
Local side broadband device and line capture module grasp a certain circuit with the control line capture module and test for built-in line test module by the communication interface communication.Communication interface can adopt RS232 or RS485/422 etc.
To obtain a certain circuit that line capture module grasps, test this road user outline by degree by test bus for the local side broadband device.
Join shown in Figure 5ly, test module and main control module adopt the DB15 connector to be connected, and in the main control module side, these three groups of signals of power supply interface, communication interface and test bus interface are incorporated on this physical connector.Signal is arranged as shown in the table:
| Pin | Signal | Pin | Signal |
| 1 | RAU_RX-, RS485 difference serial ports receipts- | 2 | The 15V power supply that+15V, DSLAM give line capture module equipment just |
| 3 | The 15V power supply that+15V, DSLAM give line capture module equipment just | 4 | GND, DSLAM gives the 15V power-of line capture module equipment |
| 5 | TA, user test bus TIP | 6 | RAU_RX+, RS485 difference serial ports receipts+ |
| 7 | RAU_TX-, RS485 difference serial ports send out- | 8 | The 15V power supply that+15V, DSLAM give line capture module equipment just |
| 9 | GND, DSLAM gives the 15V power-of line capture module equipment | 10 | GND |
| 11 | RAU_TX+, RS485 difference serial ports send out+ | 12 | The 15V power supply that+15V, DSLAM give line capture module equipment just |
| 13 | GND, DSLAM gives the 15V power-of line capture module equipment | 14 | GND, DSLAM gives the 15V power-of line capture module equipment |
| 15 | TB, user test bus RING |
It is as follows to consult test process shown in Figure 6, concrete:
Step 10: the main control module of local side broadband device is initiated test command.
Test command comprises: which subscribers feeder is tested and this road subscribers feeder carried out parameters such as which kind of test.Still carry out the line length test such as carrying out Digital Multi-Meter Test.
Step 20: after line test module receives the test command of main control module, transmit this order, the action of notice line capture module equipment by the communication interface between line test module and the line capture module equipment;
Step 30: line capture module equipment grasps the user outline of appointment, and the outside line physics of this appointment is shorted on the test bus.
After line capture module equipment is finished the extracting of user outline, grab line by communication interface report line test module and finish.
Step 40: line test module begins line testing by bus.Test module is same as the prior art to the signal processing of subscriber's line.
Step 50: line test module reports main control module to the result and handles after line testing is finished.
According to the test needs, also can handle by test result being reported 112 Centralized Maintenance System For by main control module.
Line test module generally comprises following function:
Digital multimeter (DMM) test: the direct voltage of circuit, alternating voltage, line resistance, line capacitance test;
Frequency response (FR) and circuit can be opened rate test: can be at the frequency range of ADSL, and the frequency response of measurement circuitry; Can open speed by estimation of line;
Circuit background noise test: noise type that can identification circuit, the crosstalk noise of the crosstalk noise of E1 type or ADSL type etc. in this way;
Circuit loading coil (Load Coil) test: can detect the position that the inductance quantity of contacting in the circuit also can be judged first polyphone inductance;
Longitudinal balance degree test: longitudinal balance degree that can measurement circuitry;
Line length test: can measurement circuitry length;
Impulsive noise test: can detect the impulsive noise in the circuit.
Claims (9)
1, a kind of test macro of digital subscriber line, comprise line capture module equipment and test module, this line capture module equipment is connected between distributing frame and local side broadband device, the subscriber's line that is used to grasp appointment is tested to test module, it is characterized in that, described test module is built in the described local side broadband device, and is connected with described line capture module equipment with the main control module of local side broadband device by interface.
2, test macro as claimed in claim 1 is characterized in that, the interface between described test module and the line capture module equipment comprises:
Communication interface, the local side broadband device is by this interface and line capture module device talk;
Power supply interface, the local side broadband device provides power supply by this interface to line capture module equipment;
The test bus interface, test module is tested the user outline that line capture module equipment grasps by this interface.
3, test macro as claimed in claim 1 or 2, it is characterized in that, be connected by connector between described test module and the described main control module, be incorporated on this connector at three road signals of main control module side with communication interface, power supply interface and test bus interface.
4, a kind of method of testing of digital subscriber line is grasped the subscriber's line of appointment and tests to test module by the line capture module equipment between distributing frame and local side broadband device, the method comprising the steps of:
The main control module of local side broadband device is initiated test command;
Test module is by the action of interface notice line capture module equipment;
Line capture module equipment grasps the user outline of appointment to test bus;
Line test module tests and obtains test result by test bus to user outline.
5, method of testing as claimed in claim 4 is characterized in that, described test result is reported main control module, is handled by main control module.
6, require 4 described method of testings as the right profit, it is characterized in that, described test result reports Centralized Maintenance System For by main control module, is handled by this system.
7, method of testing as claimed in claim 4 is characterized in that, the power supply of described line capture module equipment is provided by the local side broadband device.
8, method of testing as claimed in claim 7 is characterized in that, is incorporated on the physical connector in communication, power supply and the test signal of main control module side with the test module side.
9, as the arbitrary described method of testing of claim 4 to 8, it is characterized in that the test item of test module comprises:
Digital multimeter (DMM) test, frequency response (FR) and circuit can be opened rate test, the test of circuit background noise, circuit loading coil (Load Coil) test, longitudinal balance degree test, line length test and impulsive noise test.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031473822A CN100456839C (en) | 2003-07-12 | 2003-07-12 | A testing system of digital subscriber line and testing method |
| EP04738386A EP1650900B1 (en) | 2003-07-12 | 2004-07-12 | A user line testing apparatus and broadband/narrowband telecommunication sytem |
| AT04738386T ATE388549T1 (en) | 2003-07-12 | 2004-07-12 | USER CONNECTION TEST APPARATUS AND WIDEBAND AND NARROWBAND COMMUNICATION SYSTEM |
| AT08001026T ATE543299T1 (en) | 2003-07-12 | 2004-07-12 | TEST SYSTEM FOR A SUBSCRIBER LINE, BROADBAND LINE CARD AND BROADBAND/NARROWBAND TELECOMMUNICATIONS SYSTEM |
| DE602004012277T DE602004012277T2 (en) | 2003-07-12 | 2004-07-12 | User connection test device and broadband and narrowband communication system |
| ES04738386T ES2301998T3 (en) | 2003-07-12 | 2004-07-12 | EQUIPMENT FOR CHECKING THE SUBSCRIBER LINES AND TELECOMMUNICATION SYSTEM WIDE BAND / NARROW BAND. |
| PCT/CN2004/000788 WO2005006656A1 (en) | 2003-07-12 | 2004-07-12 | A user line testing system, a wideband line card and a wideband and narrowband communication system |
| CA2531838A CA2531838C (en) | 2003-07-12 | 2004-07-12 | Subscriber line testing system, broadband line card and broadband/narrowband telecommunication system |
| EP08001026A EP1919133B1 (en) | 2003-07-12 | 2004-07-12 | Subscriber line testing system, broadband line card and broadband/narrowband telecommunication system |
| ES08001026T ES2380380T3 (en) | 2003-07-12 | 2004-07-12 | Subscriber line test system, broadband line card and broadband / narrowband telecommunications system |
| US11/327,659 US7804940B2 (en) | 2003-07-12 | 2006-01-06 | Subscriber line testing system, broadband line card and broadband/narrowband telecommunication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031473822A CN100456839C (en) | 2003-07-12 | 2003-07-12 | A testing system of digital subscriber line and testing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1571521A true CN1571521A (en) | 2005-01-26 |
| CN100456839C CN100456839C (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031473822A Expired - Fee Related CN100456839C (en) | 2003-07-12 | 2003-07-12 | A testing system of digital subscriber line and testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100456839C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007038901A1 (en) * | 2005-10-01 | 2007-04-12 | Huawei Technologies Co., Ltd. | System, apparatus and method for testing line |
| WO2007062558A1 (en) * | 2005-11-29 | 2007-06-07 | Zte Corporation | A cascade online testing system and the method thereof |
| WO2007112688A1 (en) * | 2006-04-03 | 2007-10-11 | Huawei Technologies Co., Ltd. | Device, methode for supplying wetting current and device for testing line connected with line capturing matrix |
| WO2008037223A1 (en) * | 2006-09-30 | 2008-04-03 | Huawei Technologies Co., Ltd. | A method and apparatus for quickly diagnosing inter-communication problem of digital subscriber line transceivers |
| WO2009000120A1 (en) * | 2007-06-28 | 2008-12-31 | Zte Corporation | A narrow-band subscriber board bearing test function and a method for automatic test of subscriber line |
| CN101013970B (en) * | 2006-09-30 | 2010-04-21 | 华为技术有限公司 | Apparatus and method for accessing digital subscriber line testing |
| CN101005529B (en) * | 2005-12-22 | 2010-09-22 | 阿尔卡特朗讯 | Dsl line testing with a sealing current |
| CN101322324B (en) * | 2006-04-05 | 2012-08-29 | 华为技术有限公司 | Method and apparatus for testing longitudinal balance degree of link |
| CN110475035A (en) * | 2019-07-23 | 2019-11-19 | 深圳市普威技术有限公司 | A kind of xDSL equipment with loop noise self-checking function |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602004012277T2 (en) | 2003-07-12 | 2009-03-12 | Huawei Technologies Co., Ltd., Shenzhen | User connection test device and broadband and narrowband communication system |
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| GB2310571B (en) * | 1996-02-21 | 2000-06-28 | Dsc Communications | Testing a subscriber terminal of a wireless telecommunications system |
| US6377552B1 (en) * | 1997-08-29 | 2002-04-23 | Motorola, Inc. | System, device, and method for evaluating dynamic range in a communication system |
| JP4093669B2 (en) * | 1999-02-23 | 2008-06-04 | 富士通株式会社 | Subscriber testing system |
| US6434221B1 (en) * | 2000-05-17 | 2002-08-13 | Sunrise Telecom, Inc. | Digital subscriber line access and network testing multiplexer |
| WO2001093548A2 (en) * | 2000-06-02 | 2001-12-06 | Nokia Inc. | Activation of remote test interface for digital subscriber lines using voice-band signals |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007038901A1 (en) * | 2005-10-01 | 2007-04-12 | Huawei Technologies Co., Ltd. | System, apparatus and method for testing line |
| EP1796284A1 (en) * | 2005-10-01 | 2007-06-13 | Huawei Technologies Co., Ltd. | System, apparatus and method for testing line |
| CN101156327B (en) * | 2005-10-01 | 2013-03-13 | 华为技术有限公司 | Circuit test system, testing device and method for implementing circuit test |
| EP1796284A4 (en) * | 2005-10-01 | 2008-02-27 | Huawei Tech Co Ltd | System, apparatus and method for testing line |
| WO2007062558A1 (en) * | 2005-11-29 | 2007-06-07 | Zte Corporation | A cascade online testing system and the method thereof |
| CN101005529B (en) * | 2005-12-22 | 2010-09-22 | 阿尔卡特朗讯 | Dsl line testing with a sealing current |
| US8879691B2 (en) | 2005-12-22 | 2014-11-04 | Alcatel Lucent | Autonomous metallic supervision with sealing current |
| CN101052068B (en) * | 2006-04-03 | 2011-04-06 | 华为技术有限公司 | Device and method for providing wet current |
| CN101317383B (en) * | 2006-04-03 | 2012-09-05 | 华为技术有限公司 | Equipment and method for providing wet current, and circuit test equipment connected with catching line matrix |
| US8275094B2 (en) | 2006-04-03 | 2012-09-25 | Huawei Technologies Co., Ltd. | Method and devices for providing wetting current |
| WO2007112688A1 (en) * | 2006-04-03 | 2007-10-11 | Huawei Technologies Co., Ltd. | Device, methode for supplying wetting current and device for testing line connected with line capturing matrix |
| CN101322324B (en) * | 2006-04-05 | 2012-08-29 | 华为技术有限公司 | Method and apparatus for testing longitudinal balance degree of link |
| CN101013970B (en) * | 2006-09-30 | 2010-04-21 | 华为技术有限公司 | Apparatus and method for accessing digital subscriber line testing |
| WO2008037223A1 (en) * | 2006-09-30 | 2008-04-03 | Huawei Technologies Co., Ltd. | A method and apparatus for quickly diagnosing inter-communication problem of digital subscriber line transceivers |
| US8249221B2 (en) | 2006-09-30 | 2012-08-21 | Huawei Technologies Co., Ltd. | Access apparatus and method for digital subscriber line test |
| WO2009000120A1 (en) * | 2007-06-28 | 2008-12-31 | Zte Corporation | A narrow-band subscriber board bearing test function and a method for automatic test of subscriber line |
| CN101079920B (en) * | 2007-06-28 | 2011-11-23 | 中兴通讯股份有限公司 | Narrow user board with testing function and automatic testing method of user line |
| CN110475035A (en) * | 2019-07-23 | 2019-11-19 | 深圳市普威技术有限公司 | A kind of xDSL equipment with loop noise self-checking function |
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