CN101150744B - Method for testing electric signal intercrossing function - Google Patents
Method for testing electric signal intercrossing function Download PDFInfo
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- CN101150744B CN101150744B CN2007101637322A CN200710163732A CN101150744B CN 101150744 B CN101150744 B CN 101150744B CN 2007101637322 A CN2007101637322 A CN 2007101637322A CN 200710163732 A CN200710163732 A CN 200710163732A CN 101150744 B CN101150744 B CN 101150744B
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Abstract
The invention provides a method for testing electrical signal cross function, the method comprises: step 1, setting the state of a device to be tested; step 2, collocating a space division cross module of the device to be tested, enabling the space division cross module to generate a test signal, collocating one or more than one channels of the space division cross module as input channels for receiving test signals; step 3, selecting output channels from one or more than one channels of the space division cross module, enabling transmission function of the output channel to transmit test signals; step 5, judging the state of test signals by a service receiving-transmitting module, according to the judgement result determining the link between the space division cross module and the service receiving-transmitting module is whether or not normal. Thereby, by adopting the invention, testing transmission channels of the service receiving-transmitting module and the cross module on the transmission system, having practical application cost.
Description
Technical field
The present invention relates to signal of telecommunication cross-application, more specifically, relate to a kind of method of testing electric signal intercrossing function.
Background technology
At first explain the several notions that the present invention relates to:
Empty divide without hindrance intersection: if an interleaving function unit comprises m road input signal and n road output signal, i is an a certain road input signal (i=1..m), j be another road input signal (j=1..m, and=i), if i can any one or more output from the n road (form set a) with all output signals of i correspondence, j also can export (forming set b with all output signals of j correspondence) by any one or more from the n road simultaneously, as long as the common factor of a and b is empty, common factor can not take an output channel simultaneously for sky is i, j, that is to say that an output channel can only corresponding input channel, then be provided with and just can realize that this interleaved mode is without hindrance.
The without hindrance Cross module of empty branch: realize empty hardware module of dividing without hindrance intersection transmitting business signal.
Professional transceiver module: in the transmission equipment, hardware module that can the transmitting and receiving service signal of telecommunication.
Develop rapidly along with data service, data service has taken the main bandwidth resources in the network gradually, because data service possesses burst, randomness characteristics such as changeable, uncertain, the pattern of traditional optical transfer network fixed allocation bandwidth incompatibility more and more when transmitting data service.From network configuration, traditional optical transfer network has adopted the sandwich construction networking mode, and network assigned is too complicated, transport overhead is excessive; From network bandwidth resources, though there is huge transmission capacity in the dense wavelength division system, only provide fixing transmission bandwidth, can't realize that the dynamic on-demand of bandwidth distributes.Therefore, traditional optical transfer network becomes a kind of trend to the development of optical network that possesses intelligent characteristic.In order to solve multiple class mass data service access and scheduling problem, the dynamic service configuration feature is provided simultaneously, in order to realize having to the next generation transition of the ASON of automatic function of exchange, the space division cross function of electricity layer has obtained using more widely simultaneously.
In the without hindrance cross-application of electricity layer high-speed space division, relate to a plurality of veneers or equipment, and the high speed business transmission signal line is on the backboard, still there are not a kind of convenience, the effective method of test or placed channel fault at present.Purpose of the present invention is exactly to overcome prior art hollow to divide that without hindrance cross aisle and peripheral circuit testing equipment lack, the problem of complex operation, the method that a kind of PRBS signal that utilizes electric crossover network module self to produce is tested has been proposed, to be implemented under the situation that does not have test instrumentation directly in the checking of transmission system enterprising industry affair transceiver module and Cross module function, the purpose of raising testing efficiency.
Summary of the invention
In order to solve the problems of the prior art, the present invention proposes a kind of method of testing electric signal intercrossing function, this method comprises: step 1 is provided with the state of device under test; Step 2, the space division cross module of configuration device under test enables the space division cross module and produces test signal, and with an input channel that channel arrangement is the acceptance test signal in one or more passages of space division cross module; Step 3 is that from one or more passages of space division cross module test signal selects output channel, and the sending function that enables output channel is to send test massage; Step 4, the transmission-receiving function of configuration service transceiver module is to receive the test signal from output channel; And step 5, professional transceiver module is judged the state of test signal, and determines according to judged result whether the link between space division cross module and the professional transceiver module is normal.
Step 1 comprises following processing: make device to be measured enter test mode; Delete original passage cross-over configuration; Input port and the output port of forbidding device to be measured; And the transmission-receiving function of forbidding peripheral professional transceiver module.
The method according to this invention, the speed of test signal are to select according to the frequency of the detection range of professional transceiver module and reference clock.
In step 5, if professional transceiver module is determined test signal and is not lost, determine that then the link between space division cross module and the professional transceiver module is normal, with test signal winding other passages that are different from output channel to the space division cross module, and repeating step 3 is finished all passages of space division cross module to step 5 up to detection.
In step 5, if determining test signal, loses professional transceiver module, determine that then the link between space division cross module and the professional transceiver module is undesired, report the numbering of input channel and the numbering of output channel.
In addition, the method according to this invention, test signal are the pseudorandom two position signals.
Therefore, adopt method of the present invention, solved and had the empty test problem that divides the transmission equipment passage of without hindrance electric interleaving function, this invention has made full use of the measuring ability of the business of actual transmission equipment, need not to increase under the situation of any test instrumentation, directly on transmission system, the transmission channel of professional transceiver module and Cross module is verified to have bigger actual application value, also be can be used as in the production or a kind of convenience during fault location, means of testing flexibly.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart of the method for testing electric signal intercrossing function according to the present invention;
Fig. 2 is the flow chart according to the first embodiment of the present invention;
Fig. 3 is PRBS input, the output connection layout according to space division cross module of the present invention; And
Fig. 4 is the flow chart according to second embodiment of the inventive method.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart of the method for testing electric signal intercrossing function according to the present invention.
As shown in Figure 1, may further comprise the steps:
S102 is provided with the state of device under test;
S104, the space division cross module of configuration device under test enables the space division cross module and produces test signal, and with an input channel that channel arrangement is the acceptance test signal in one or more passages of space division cross module;
S106 is that from one or more passages of space division cross module test signal selects output channel, and the sending function that enables output channel is to send test massage;
S108, the transmission-receiving function of configuration service transceiver module is to receive the test signal from output channel; And
S110, professional transceiver module is judged the state of test signal, and determines according to judged result whether the link between space division cross module and the professional transceiver module is normal.
S102 comprises following processing: make device to be measured enter test mode; Delete original passage cross-over configuration; Input port and the output port of forbidding device to be measured; And the transmission-receiving function of forbidding peripheral professional transceiver module.
The method according to this invention, the speed of test signal are to select according to the frequency of the detection range of professional transceiver module and reference clock.
In S110, if professional transceiver module is determined test signal and is not lost, determine that then the link between space division cross module and the professional transceiver module is normal, with test signal winding other passages that are different from output channel to the space division cross module, and repeat S106 to S110, finish all passages of space division cross module up to detection.
In S110, if determining test signal, loses professional transceiver module, determine that then the link between space division cross module and the professional transceiver module is undesired, report the numbering of input channel and the numbering of output channel.
In addition, the method according to this invention, test signal are the pseudorandom two position signals.
Fig. 2 is the flow chart according to the first embodiment of the present invention.
As shown in Figure 2,, use method of the present invention to carry out the checking or the transmission fault location of production test, comprise following step for having the empty transmission equipment that divides without hindrance interleaving function:
S202 sets the state of transmission equipment to be tested;
S204, the input channel of configuration space division cross module is according to the speed of the outgoing traffic receiver module configuration pseudo-random binary sequence (PRBS) of space division cross module;
S206 selects, disposes output channel;
S208, the transmission-receiving function of configuration service receiver module, detection service condition; And
S210, if it is normal that business module detects the service condition of this input channel, service loop is not exported the input channel of PRBS to other of Cross module, do not have and lose (LOS) and can continue to be crossed to other passages if then this input detects the back, professional no LOS then can continue to be looped back to Cross module, finishes up to detection till all cross aisles of system equipment.
Present embodiment has overcome prior art hollow and has divided that without hindrance cross aisle and peripheral circuit testing equipment lack, the problem of complex operation, do not having under the situation of test instrumentation, direct checking in transmission system enterprising industry affair transceiver module and Cross module function, thus testing efficiency improved.
Fig. 3 is PRBS input, the output connection layout according to space division cross module of the present invention.
Fig. 4 is the flow chart according to second embodiment of the inventive method.
As shown in Figure 3, divide in the test of without hindrance intersection transmission at sky, be divided into two functional test parts: empty inner without hindrance intersection transmission channel of without hindrance Cross module and the transmission-receiving function of dividing tested; And professional transceiver module transmission-receiving function test.
According to above two test function points, in conjunction with Fig. 3 and Fig. 4, second embodiment of the inventive method may further comprise the steps:
S402 sets the state of transmission equipment to be tested, enters test mode, and the original cross-over configuration of passage is deleted, and input, output port are under an embargo, and the transmission-receiving function of out-out business transceiver module also is under an embargo, the input channel of configuration space division cross module;
S404, dispose the speed of PRBS according to the outgoing traffic receiver module of space division cross module, the input clock of configuration Cross module, enable the input channel of Cross module generation PRBS, and passage is set sends the PRBS function, the speed that the detection range of the professional transceiver module that is equipped with according to reality and the frequency of reference clock are selected PRBS (for example, the frequency of reference clock is chosen as 19.44MHz, it is 2.488Gbps that PRBS speed just can be set), generally speaking, PRBS speed be reference clock certain limit continuous integral multiple (for example, the 102-165 that the cross chips of MINDSPEED company can be set to reference clock doubly between, the speed of PRBS can be arranged between the 1.983-3.208Gbps and select arbitrarily);
S406 selects, disposes output channel, is that the PRBS signal that input channel produces is selected output channel, and enables the sending function of output channel;
S408, the transmission-receiving function of configuration service receiver module, detection service condition;
S410 utilizes the measuring ability of module to judge the service condition receive, if LOS then go to S412, otherwise would go to S414;
S412 if LOS illustrates that there is fault in the transmission link of Cross module cross section or two functional modules, reports input, output channel number; And
S414, if it is normal that business module detects the service condition of this input channel, service loop is not exported the input channel of PRBS to other of Cross module, if it is professional normal, professional transceiver module then is set the PRBS hoop that receives is got back to other input channels of Cross module, dispose this input channel, and enable its service signal status detection function, if it is professional normal, continue to be crossed to other passages of Cross module, and outputing to the input channel of business module, professional no LOS then can continue to be looped back to Cross module, finishes up to detection till all cross aisles of system equipment.
In sum, adopt method of the present invention, solved and had the empty test problem that divides the transmission equipment passage of without hindrance electric interleaving function, this invention has made full use of the measuring ability of the business of actual transmission equipment, need not to increase under the situation of any test instrumentation, directly on transmission system, the transmission channel of professional transceiver module and Cross module is verified to have bigger actual application value, also be can be used as in the production or a kind of convenience during fault location, means of testing flexibly.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the method for a testing electric signal intercrossing function is characterized in that, comprising:
Step 1 is provided with the state of device under test;
Step 2 disposes the space division cross module of described device under test, enable described space division cross module and produce test signal, and with a channel arrangement in one or more passages of described space division cross module for receiving the input channel of described test signal;
Step 3 is that described test signal is selected output channel from one or more passages of described space division cross module, and the sending function that enables described output channel is to send described test signal;
Step 4, the transmission-receiving function of configuration service transceiver module is to receive the described test signal from described output channel; And
Step 5, described professional transceiver module is judged the state of described test signal, and determines according to judged result whether the link between described space division cross module and the described professional transceiver module is normal.
2. method according to claim 1 is characterized in that, described step 1 comprises following processing:
Make described device to be measured enter test mode;
Delete original passage cross-over configuration;
Input port and the output port of forbidding described device to be measured; And
The transmission-receiving function of forbidding peripheral described professional transceiver module.
3. method according to claim 1 and 2 is characterized in that, the speed of described test signal is to select according to the frequency of the detection range of described professional transceiver module and reference clock.
4. method according to claim 3, it is characterized in that, in described step 5, if described professional transceiver module is determined described test signal and is not lost, determine that then the link between described space division cross module and the described professional transceiver module is normal, with described test signal winding other passages that are different from described output channel to described space division cross module, and repeating step 3 is finished all passages of described space division cross module to step 5 up to detection.
5. method according to claim 4, it is characterized in that, in described step 5, if described professional transceiver module is determined described test signal and is lost, determine that then the link between described space division cross module and the described professional transceiver module is undesired, reports the numbering of described input channel and the numbering of described output channel.
6. according to claim 4 or 5 described methods, it is characterized in that described test signal is the pseudorandom two position signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101637322A CN101150744B (en) | 2007-10-23 | 2007-10-23 | Method for testing electric signal intercrossing function |
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| CN2007101637322A CN101150744B (en) | 2007-10-23 | 2007-10-23 | Method for testing electric signal intercrossing function |
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| CN101150744A CN101150744A (en) | 2008-03-26 |
| CN101150744B true CN101150744B (en) | 2010-08-04 |
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| CN101826918B (en) * | 2010-05-05 | 2015-01-28 | 中兴通讯股份有限公司 | Test method, unit, system, single plate and backing plate of optical transport network electric crossing unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622503A (en) * | 2004-12-17 | 2005-06-01 | 烽火通信科技股份有限公司 | An optical cross based multiplexing 40Gbps system and method thereof |
| CN1787417A (en) * | 2004-12-08 | 2006-06-14 | 中兴通讯股份有限公司 | Light retransmission apparatus for wave division multiplex system |
| CN1885789A (en) * | 2005-06-23 | 2006-12-27 | 华为技术有限公司 | Channel failure handling method in ASON |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787417A (en) * | 2004-12-08 | 2006-06-14 | 中兴通讯股份有限公司 | Light retransmission apparatus for wave division multiplex system |
| CN1622503A (en) * | 2004-12-17 | 2005-06-01 | 烽火通信科技股份有限公司 | An optical cross based multiplexing 40Gbps system and method thereof |
| CN1885789A (en) * | 2005-06-23 | 2006-12-27 | 华为技术有限公司 | Channel failure handling method in ASON |
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