CN1330165C - Numerical user loop grab wire testing device and method - Google Patents
Numerical user loop grab wire testing device and method Download PDFInfo
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- CN1330165C CN1330165C CNB2003101098263A CN200310109826A CN1330165C CN 1330165 C CN1330165 C CN 1330165C CN B2003101098263 A CNB2003101098263 A CN B2003101098263A CN 200310109826 A CN200310109826 A CN 200310109826A CN 1330165 C CN1330165 C CN 1330165C
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
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Abstract
The present invention relates to a device used for a wire grabbing test on a digital subscriber loop, which belongs to the field of broadband access. The device used for a wire grabbing test on a digital subscriber loop comprises a separator board and a control board, wherein the separator board comprises many pairs of relays and separators, the common end of each relay and the input end of each separator form a connection point, and then are respectively connected with each subscriber inlet wire; the output end of each separator is connected with a public switched telephone network (PSTN); the normally closed end of each relay is connected with each subscriber board, and the normally open end of each relay is connected with a protection bus; the control board comprises a control command input interface, a testing outlet, a control logic circuit and many pairs of relays, and the control command input interface receives the control command of a console; all the relay actions of the separator board and the control board are uniformly controlled by the control logic circuit, and the common end of each relay is connected with the protection bus; the normally closed ends are connected with external testing equipment by the testing outlet. The present invention also provides a method used for a wire grabbing test on a subscriber loop.
Description
Affiliated technical field
The present invention relates to a kind of device and method that Digital Subscriber Loop is grabbed the line test that is used for, belong to the broadband access field.The backup protection technology of grabbing line and user that particularly relates to a kind of XDSL of being used for (Digital Subscriber Line, Digital Subscriber Line) circuit.
Background technology
Because wilderness demand and the growth of adopting modes such as cable, optical fiber and satellite to enter the Internet, make supporting with it this class of XDSL provide the emerging broadband technology of high bit rate transmission rapidly to be promoted and develop to the user with copper twisted pair.XDSL market reaches its maturity at present, and the market of millions of lines is just arranged only domestic every year.In large-scale application, it is anxious for urgent that work such as relevant guarantee, maintenance, repair and circuit preliminary election just seem.The topmost line technology of grabbing generally still adopts traditional matrix-style in the existing XDSL line upkeep, it is exactly used relay enormous amount that traditional matrix is grabbed the significant disadvantages of line mode, with square being directly proportional of the line number of grabbing, and also complexity comparatively of interconnector.Therefore, adopt matrix-style to grab line in the extensive line applications of millions of lines in this every year of XDSL, the cost of being paid is relatively than higher.This just presses for a kind of new improvement technology and finishes same function with less cost.
Summary of the invention
The technical problem that the present invention solves provides a kind of grab wire testing device that uses the Digital Subscriber Loop of less relay, this device has at N can switch maximum M in to Digital Subscriber Line simultaneously to the function of Digital Subscriber Line (M＜N), and can select one to two pair of Digital Subscriber Line as required again on to the basis of subscribers feeder at maximum M that the first step is selected.
Digital Subscriber Loop grab wire testing device of the present invention comprises:
Separator board, comprise many to relay and separator, the common port of each relay and the input of separator form tie point, link to each other respectively with each subscriber's drop again, the output of separator links to each other with the PSTN net, the normal-closed end of relay is connected on each user's plate, and Chang Kaiduan is connected on the protection bus;
Control board; comprise control command input interface, test outlet, control logic circuit and many to relay; the control command input interface receives the control command on the control desk; action by all relays on control logic circuit unified control separator board and the control board; the common port of relay links to each other with the protection bus, and normal-closed end is connected to external test facility by the test outlet.
Comprise that also circuit connects switch boards, comprise many to relay by control logic circuit control, its common port links to each other with the protection bus, and Chang Kaiduan is connected to and backs up user's plate.
Also comprise manyly, be connected between the tie point and subscriber's drop of input of the common port of the relay in the described separator board and separator circuit protecting device.
A kind of local loop of the present invention is grabbed wire testing method, may further comprise the steps:
Step 1: the corresponding road of different veneers is connected, and constitutes M to bus;
Step 2: when test, subscribers feeder is imported on a certain road of device switched on the corresponding bus, the subscribers feeder of input is connected with bus;
Step 3: select tape test subscriber's bus switches to output interface;
Step 4: when EOT, subscribers feeder and the bus with input disconnects again, recovers original connecting path.
Adopt grab wire testing device of the present invention, have and adopt advantages such as relay quantity is few, line is succinct, and can realize the function of backup protection, can protect N a pair of arbitrarily in the subscribers feeder, also can protect simultaneously N to the maximum M in the subscribers feeder to subscribers feeder.
Description of drawings
Fig. 1 line testing device system block diagram of grabbing of the present invention;
Embodiment
Below in conjunction with accompanying drawing and by specific embodiment grab wire testing device of the present invention is described.
With reference to system block diagram shown in Figure 1, local loop grab wire testing device of the present invention comprises: the separator board and the control board that have increased the backup protection function of grabbing line test and local side apparatus thereof.
In real work; only need the relay on the control separator board that subscriber's line is switched on the protection bus; according to different requirements, converge to testing equipment again, perhaps connect switch boards subscribers feeder is switched to standby user's plate by circuit by control board.
Separator board has also increased by a group relay except extracting normally by separator the function of low frequency voice signal, and they can grasp one road subscribers feeder to the protection bus automatically under the control of control board.In normal operating conditions, subscriber's drop is delivered on user's plate by the normally closed connection of relay.
Control board is by the control command on the command input interface reception external command control desk, and unified control separator board, control board are connected the action of all relays on the switch boards with circuit, realizes grabbing the backup protection function of line test and local side apparatus thereof.The realization of wherein grabbing the line test function be by the relay on the control board the M that guides to this plate by the protection bus to subscribers feeder, as required, select the circuit of appointment to switch and output to the testing equipment interface, for the test use through relay.
The backup protection function is that the M that circuit connects on the switch boards switches to the subscribers feeder that needs protection on standby user's plate of corresponding way relay, realizes defencive function.
The M that every separator board is drawn to protective wire and together forms the protection bus, links on all veneers.
The detailed operation process is as follows:
1. grab the line test function
The public termination subscriber's drop of separator board relay; the normally closed termination user's printed line of relay road; guarantee that original function is constant under the normal condition; Chang Kaiduan connects the protection bus; because test instrumentation generally can only be surveyed a route road simultaneously; the subscribers feeder of the corresponding way of P piece separator board can and connect together; (every separator board has M to subscribers feeder to the protection bus to form M; every pair of line in the bus is formed in parallel to subscribers feeder by P; total N imports N=M * P) to subscribers feeder; when test; the separator board relay switches to the protection bus with incoming line, and by backboard, the protection bus will be separated the next subscribers feeder of header board switching and be delivered to control board; the corresponding relay of control board switches to delivery outlet with this road subscribers feeder again, and the testing equipment of delivery outlet just can have been tested this road subscribers feeder like this.
2. backup protection function
Circuit connects the public termination protection of switch boards relay bus, and normal-closed end is unsettled, guarantees not influence when not moving regular traffic.Relay normally open termination backup user plate subscribers feeder, when separator board switched to the protection bus with the subscriber's line that needs protection, the actuating of relay of plugboard correspondence switched to the corresponding road of backing up user's plate with this road subscriber's line, realizes defencive function.
Protection when certainly the backup protection function also can realize a few roads subscribers feeder of different user plate.But requirement can not be the corresponding road of different user plate, otherwise can cause the conflict of protection bus.
Claims (3)
1. a local loop grab wire testing device is characterized in that, comprising:
Separator board, comprise separator and many to relay, the common port of each relay and the input of separator form tie point, link to each other respectively with each subscriber's drop again, the output of separator links to each other with the PSTN net, the normal-closed end of relay is connected on each user's plate, and Chang Kaiduan is connected on the protection bus;
Control board; comprise control command input interface, test outlet, control logic circuit and many to relay; the control command input interface receives the control command on the control desk; action by all relays on control logic circuit unified control separator board and the control board; the common port of relay links to each other with the protection bus, and normal-closed end is connected to external test facility by the test outlet.
2. local loop grab wire testing device according to claim 1 is characterized in that, comprises that also circuit connects switch boards, comprises many to relay by control logic circuit control, and its common port links to each other with the protection bus, and Chang Kaiduan is connected to and backs up user's plate.
3. local loop grab wire testing device according to claim 1 and 2 is characterized in that, also comprises manyly to circuit protecting device, is connected between the tie point and subscriber's drop of input of the common port of the relay in the described separator board and separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101098263A CN1330165C (en) | 2002-12-24 | 2003-12-22 | Numerical user loop grab wire testing device and method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02139943.3 | 2002-12-24 | ||
| CN02139943 | 2002-12-24 | ||
| CNB2003101098263A CN1330165C (en) | 2002-12-24 | 2003-12-22 | Numerical user loop grab wire testing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1538724A CN1538724A (en) | 2004-10-20 |
| CN1330165C true CN1330165C (en) | 2007-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101098263A Expired - Fee Related CN1330165C (en) | 2002-12-24 | 2003-12-22 | Numerical user loop grab wire testing device and method |
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| Country | Link |
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| CN (1) | CN1330165C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101227518B (en) * | 2007-04-11 | 2011-02-16 | 河海大学常州校区 | ADSL/VDSL segregator multi module automatic detection system |
| CN101645982B (en) * | 2008-08-07 | 2015-03-18 | 华为技术有限公司 | Method and service veneer for voice terminal simulation test |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002671A (en) * | 1997-09-03 | 1999-12-14 | Fluke Corporation | Test instrument for testing asymmetric digital subscriber lines |
| WO2001093549A2 (en) * | 2000-06-02 | 2001-12-06 | Nokia Inc. | Loop management device with activation of remote test interface for digital subscriber lines using voice-band signals |
| WO2001093548A2 (en) * | 2000-06-02 | 2001-12-06 | Nokia Inc. | Activation of remote test interface for digital subscriber lines using voice-band signals |
| 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 |
| US6434221B1 (en) * | 2000-05-17 | 2002-08-13 | Sunrise Telecom, Inc. | Digital subscriber line access and network testing multiplexer |
| US6477238B1 (en) * | 1999-01-21 | 2002-11-05 | Verizon Services Group | Loop certification and measurement for ADSL |
-
2003
- 2003-12-22 CN CNB2003101098263A patent/CN1330165C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002671A (en) * | 1997-09-03 | 1999-12-14 | Fluke Corporation | Test instrument for testing asymmetric digital subscriber lines |
| US6477238B1 (en) * | 1999-01-21 | 2002-11-05 | Verizon Services Group | Loop certification and measurement for ADSL |
| US6434221B1 (en) * | 2000-05-17 | 2002-08-13 | Sunrise Telecom, Inc. | Digital subscriber line access and network testing multiplexer |
| WO2001093549A2 (en) * | 2000-06-02 | 2001-12-06 | Nokia Inc. | Loop management device with activation of remote test interface for digital subscriber lines using voice-band signals |
| WO2001093548A2 (en) * | 2000-06-02 | 2001-12-06 | Nokia Inc. | Activation of remote test interface for digital subscriber lines using voice-band signals |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1538724A (en) | 2004-10-20 |
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