CN1674458B - Testing method for digital user line and local side wideband equipment - Google Patents
Testing method for digital user line and local side wideband equipment Download PDFInfo
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- CN1674458B CN1674458B CN2004100398782A CN200410039878A CN1674458B CN 1674458 B CN1674458 B CN 1674458B CN 2004100398782 A CN2004100398782 A CN 2004100398782A CN 200410039878 A CN200410039878 A CN 200410039878A CN 1674458 B CN1674458 B CN 1674458B
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Abstract
The present invention discloses a testing method of digital subscriber's line and office terminal wide-band equipment. Said method includes the following steps: main control module of office terminal wide-band equipment can be used for respectively sending testing command and line-grabbing command to testing control unit and wide-band service processing module in said office terminal wide-band equipment; grabbing defined subscriber's outer line from wide-band service processing module interior and placing it on testing bus; utilizing testing control unit to control line testing module and utilizing testing bus to test subscriber's outer line. Said office terminal wide-band equipment includes main control module, wide-band service processing module, line testing board and line-grabbing matrix equipment.
Description
Technical field
The present invention relates to the broadband services measuring technology, relate in particular to the method for testing and the local side broadband device of digital subscriber line.
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 is applied in home and overseas quite general (ADSL, VDSL being referred to as XDSL herein).As shown in Figure 1, XDSL signal and POTS/ISDN signal coexistence are in a user outline, in the local side side, digital subscriber line access multiplex (Data SubscriberLine Access Multiplexer, DSLAM, be called for short local side broadband access equipment or local side broadband device) in Splitter (SPL) with wide, narrow traffic differentiation comes, 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 Splitter (SPL) is then with isolated wide, narrow band service is sent to user side RTU and phone.
When opening DSL, can run into the reason of how selecting that can DSL circuit, certain bar circuit open the DSL business, how much speed that can open is, influencing transmission quality and be which or the like problem; In the regular maintenance of DSL circuit, if transmission quality descends or when obstacle occurring, also face problems such as how searching, locate, judge and fix a breakdown.For above-mentioned reasons, operator presses for a kind of test macro of broadband line, can solve their problem.Therefore how equipment manufacturers also are faced with to operator provides a solution that packages (broadband test system), farthest meet customer need.
In the prior art, the test of broadband line is mainly contained following two kinds of methods:
Method one,
As shown in Figure 2, between original distributing frame (MDF) drawn game end office (EO) end broadband device, insert a line capture module equipment, simultaneously at a line capture module device external configuration test instrumentation (or testing equipment).Grasped the subscriber's line of certain appointment by line capture module equipment and give testing equipment, testing equipment is tested line parameter circuit values such as resistance, electric capacity, voltage tester and the circuit background noise of circuit, longitudinal balance degrees.But there is following shortcoming in this method:
1, testing equipment will be finished the communicating by letter of power taking and local side broadband device, circuit extracting/circuit discharges and function such as line test, thereby the testing equipment more complicated.
2, need extra line capture module equipment, and line capture module equipment also needs power taking.Because the port number many (ports of each CU) that comprises, line capture module equipment is huge, need take additional space.
3, also have a segment distance from line capture module to the local side broadband device, can not test this section circuit by above-mentioned networking.
4, the user need buy extra line capture module equipment and test instrumentation, can increase operation cost.
Method two:
Consult shown in Figure 3ly, line test module is built in the local side broadband device, like this can be from the power taking of local side broadband device, scheme one has certain advantage relatively.Though this method has solved the problem that line test module is communicated by letter with the local side broadband device, help safeguarding, but still have the following disadvantages:
1, still can not solve the problem that needs extra line capture module equipment.
2, can not solve test from line capture module equipment to this section of local side broadband device circuit.
3, a kind of method of built-in line test module only is provided, the networking underaction, investment is big.Because of line test module belongs to high technology content, relatively more expensive, if every all built-in line test module of local side broadband device will certainly improve operation cost.
Summary of the invention
The invention provides a kind of method of testing and local side broadband device of digital subscriber line, there is the complicated and cost height of testing equipment in the existing broadband services test to solve, and the problem that can't test the subscriber's line between line capture module equipment and the local side broadband device.
For addressing the above problem, the invention provides following technical proposals:
A kind of method of testing of digital subscriber line, this method is:
Unit of testing and controlling in this local side broadband device and broadband services processing module issue test command and grab the line order respectively by the main control module of local side broadband device, described test command is initiated to the local side broadband device by webmaster or maintenance console, or is directly initiated by described main control module;
XDSL business board in the Service Processing Module of broadband grasps the user outline of appointment to test bus;
User outline is tested by test bus by line test module or the external line test module control circuit test module of local side broadband device in the unit of testing and controlling control local side broadband device, the power supply of line test module is provided by the local side broadband device;
Test result is reported main control module, handle by main control module; Or test result reported Centralized Maintenance System For by main control module, handle by this system.
According to above-mentioned method of testing:
The power supply of line test module is provided by DSLAM equipment.
A kind of local side broadband device (DSLAM equipment) comprises main control module, the broadband services processing module that is connected with this main control module; This DSLAM equipment also comprises:
The line test plate, this line test plate is provided with power module, the unit of testing and controlling that is connected with main control module and line test module, this power module and unit of testing and controlling are used for power supply being provided and line test module being tested control to line test module, and this line test module is connected with unit of testing and controlling, power module and line capture module equipment with test bus by control line, power line respectively in the local side broadband device;
Line capture module equipment is arranged in the broadband services processing module and is connected with test bus; Be used for from grasping subscribers feeder in the Service Processing Module of broadband to described test bus.
Wherein:
At the DSLAM equipment side, control bus, power line and test bus are incorporated on the connector, by this connector external circuit test module.
Described line capture module equipment is the relay that is arranged on the XDSL business board.
The present invention has following beneficial effect:
1, line capture module (relay on the XDSL business board) and line test module are integrated in the local side broadband device, and in the Service Processing Module of broadband, grab line to test bus, therefore, not only solve the power supply and problems such as the complexity of communicating by letter of line capture module equipment in the prior art, and solved the problem that existing testing equipment can't be tested to the subscriber's line of local side broadband device distributing frame.
2,, thereby can save the space of machine room and the cost of operator because the present invention does not need extra line capture module equipment.
3, by external line test module is provided, can use same line test module that the different user circuit is tested, not only can reduce cost, but also increase the flexibility of networking, having solved provides built-in line test module cost high problem separately.
Description of drawings
Fig. 1 is for opening the schematic diagram of broadband services by twisted-pair feeder in the prior art;
Fig. 2, Fig. 3 are the schematic diagram of testing broad-band business in the prior art;
Fig. 4 is the built-in schematic diagram of line test module of the present invention;
Fig. 5 is the external schematic diagram of line test module of the present invention;
Fig. 6 is a test flow chart of the present invention.
Embodiment
Consult shown in Figure 4ly, line test plate and line capture module equipment that line test module, power module and unit of testing and controlling are constituted are built in the local side broadband device (DSLAM equipment).
Unit of testing and controlling is connected with the main control module of local side broadband device, and line test module is connected with unit of testing and controlling with power module respectively with control line by power line.Control line between unit of testing and controlling and line test module had both played the effect of control, played the effect of Data transmission again.Acting as of unit of testing and controlling:
A, finish and the communicating by letter of main control module: receive the test command that main control module issues; The test result of line test module is reported main control module.
B, finish and the communicating by letter of line test module: issue test command and give line test module; The test result of receiving lines test module.
Power module is from the power taking of local side broadband device and offer line test module.
Line capture module equipment is relay, is arranged on the broadband services plate (being the XDSL business board) in the broadband services processing module, and is connected with line test module by test bus.The broadband services processing module is connected with the main control module of local side broadband device, and when this main control module issues when grabbing the line order, broadband services plate control relay is grabbed outside line on the line test bus.
The main control module of local side broadband device and webmaster and 112 system dockings, so line test module can be convenient to administer and maintain by webmaster and 112 controls.
Consult shown in Figure 5ly, line test plate and line capture module equipment that power module and unit of testing and controlling are constituted are built in the local side broadband device, and line test module is external.Power module, unit of testing and controlling are identical with Fig. 4 with the setting of line capture module equipment in the local side broadband device.
To external line test module, power line, test bus and control bus are incorporated on the physical connector, as the DB15 connector, consult shown in Figure 6, shown in the definition following table of this physical connector.
External line test module interface signal definition (DB15 form)
| PIN | Signal | Significance signal is described |
| 1 | -48VOUT | -48V power supply |
| 2 | -48VOUT | -48V power supply |
| PIN | Signal | Significance signal is described |
| 3 | PGND | Protection ground |
| 4 | RING | Test bus |
| 5 | RING | Test bus |
| 6 | PGND | Protection ground |
| 7 | PGND | Protection ground |
| 8 | RD232 | The serial ports control line |
| 9 | TD232 | The serial ports control line |
| 10 | BGNDOUT | Power supply ground |
| 11 | BGNDOUT | Power supply ground |
| 12 | TIP | Test bus |
| 13 | TIP | Test bus |
| 14 | PGND | Protection ground |
| 15 | GND | Ground |
The communication interface of control bus can adopt RS232 or RS485/422 etc.
It is as follows to consult test process shown in Figure 7, concrete:
Step 10: initiate the line test order.
The line test order can be initiated by webmaster or 112 maintenance consoles, or directly initiates test command by the main control module of local side broadband device.
Test command comprises and subscribers feeder is 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: the main control module of local side broadband device issues to the XDSL business board and grabs the line order.
The action of step 30:XDSL business board control relay is shorted on the test bus outside line physics of this appointment to grasp subscribers feeder.
After line capture module equipment is finished the extracting of user outline, report to the main control module of local side broadband device and to grab line and finish.
Step 40: the main control module of local side broadband device issues test command to unit of testing and controlling simultaneously.
Step 50: carry out test initialization by unit of testing and controlling control circuit test module.
Step 60: line test module begins line testing by bus.Test to subscriber's line is same as the prior art.
Step 70: line test module is tested subscriber's line, and the result is reported main control module handles.
According to the test needs, also can be by by main control module test result being reported webmaster or 112 Centralized Maintenance System For are handled.
Line test module generally comprises following test function:
Digital multimeter (DMM) test: to direct voltage, alternating voltage, line resistance and the line capacitance test of circuit;
Frequency response (FR) and circuit can be opened rate test: at the frequency range of ADSL, and the frequency response of measurement circuitry; Can open speed by estimation of line;
Circuit background noise test: the noise type of 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: the longitudinal balance degree of measurement circuitry;
Line length test: measurement circuitry length;
Impulsive noise test: can detect the impulsive noise in the circuit.
The present invention has solved the problem that line capture module equipment need additionally be powered in the prior art by built-in relay on the XDSL business board; By the relay on the XDSL business board being placed SPL also improved the density of the system integration afterwards; Test by on the XDSL business board, grabbing line, solved the problem that to test in the prior art from distributing frame to this section of local side broadband device circuit; The mode of the centrally connected power supply by the local side broadband device, not needing additionally provides the method for power supply to line test module again, has reduced the complexity and the cost of system; Line test module adopts built-in and external dual mode, makes networking more flexible, can reduce the cost of operator significantly.
Claims (6)
1. the method for testing of a digital subscriber line, the method comprising the steps of:
Unit of testing and controlling in this local side broadband device and broadband services processing module issue test command and grab the line order respectively by the main control module of local side broadband device, described test command is initiated to the local side broadband device by webmaster or maintenance console, or is directly initiated by described main control module;
XDSL business board in the Service Processing Module of broadband grasps the user outline of appointment to test bus;
User outline is tested by test bus by line test module or the external line test module of local side broadband device in the unit of testing and controlling control local side broadband device, the power supply of line test module is provided by the local side broadband device;
Test result is reported main control module, handle by main control module; Or test result reported Centralized Maintenance System For by main control module, handle by this system.
2. method of testing as claimed in claim 1 is characterized in that, described local side broadband device is a DSLAM equipment.
3. a local side broadband device comprises main control module, the broadband services processing module that is connected with this main control module; It is characterized in that this local side broadband device also comprises:
The line test plate, this line test plate is provided with power module, the unit of testing and controlling that is connected with main control module and line test module, this power module and unit of testing and controlling are used for power supply being provided and line test module being tested control to line test module, and this line test module is connected with unit of testing and controlling, power module and line capture module equipment with test bus by control line, power line respectively in the local side broadband device;
Line capture module equipment is arranged in the broadband services processing module and is connected with test bus; Be used for from grasping subscribers feeder in the Service Processing Module of broadband to described test bus.
4. local side broadband device as claimed in claim 3 is characterized in that, described local side broadband device is a DSLAM equipment.
5. local side broadband device as claimed in claim 4 is characterized in that, at the DSLAM equipment side, control bus, power line and test bus are incorporated on the connector, by this connector external circuit test module.
6. as claim 3,4 or 5 described local side broadband devices, it is characterized in that described line capture module equipment is the relay that is arranged on the XDSL business board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100398782A CN1674458B (en) | 2004-03-23 | 2004-03-23 | Testing method for digital user line and local side wideband equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100398782A CN1674458B (en) | 2004-03-23 | 2004-03-23 | Testing method for digital user line and local side wideband equipment |
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| Publication Number | Publication Date |
|---|---|
| CN1674458A CN1674458A (en) | 2005-09-28 |
| CN1674458B true CN1674458B (en) | 2010-11-03 |
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| CN2004100398782A Expired - Fee Related CN1674458B (en) | 2004-03-23 | 2004-03-23 | Testing method for digital user line and local side wideband equipment |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100477694C (en) * | 2005-10-01 | 2009-04-08 | 华为技术有限公司 | Circuit test system and method for realizing circuit test |
| CN100463417C (en) * | 2005-11-29 | 2009-02-18 | 中兴通讯股份有限公司 | Cascade on-line detection system and detection method |
| CN100531256C (en) * | 2005-12-20 | 2009-08-19 | 华为技术有限公司 | Broad-narrow band-in-one-board with detecting function and detecting method |
| CN101166123A (en) * | 2006-10-19 | 2008-04-23 | 华为技术有限公司 | A network TV testing method, system and office testing device |
| CN101159448B (en) * | 2007-11-06 | 2010-10-27 | 华为技术有限公司 | Communication line testing method and system |
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|---|---|---|---|---|
| CN1264983A (en) * | 1999-02-23 | 2000-08-30 | 富士通株式会社 | Device and method for detecting user's line and equipments |
| EP1193958A1 (en) * | 2000-09-29 | 2002-04-03 | Lucent Technologies Inc. | Metallic testing of a subscriber loop that provides both voice and digital subscriber line services |
| US6377552B1 (en) * | 1997-08-29 | 2002-04-23 | Motorola, Inc. | System, device, and method for evaluating dynamic range in a communication system |
| CN1414771A (en) * | 2002-08-13 | 2003-04-30 | 孙雷 | Digital user line single end frequency response centralized automatic testing method and system |
-
2004
- 2004-03-23 CN CN2004100398782A patent/CN1674458B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6377552B1 (en) * | 1997-08-29 | 2002-04-23 | Motorola, Inc. | System, device, and method for evaluating dynamic range in a communication system |
| CN1264983A (en) * | 1999-02-23 | 2000-08-30 | 富士通株式会社 | Device and method for detecting user's line and equipments |
| EP1193958A1 (en) * | 2000-09-29 | 2002-04-03 | Lucent Technologies Inc. | Metallic testing of a subscriber loop that provides both voice and digital subscriber line services |
| CN1414771A (en) * | 2002-08-13 | 2003-04-30 | 孙雷 | Digital user line single end frequency response centralized automatic testing method and system |
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| CN1674458A (en) | 2005-09-28 |
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Granted publication date: 20101103 Termination date: 20160323 |