CN100426760C - Method for realizing bare board test using false module and its device - Google Patents
Method for realizing bare board test using false module and its device Download PDFInfo
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- CN100426760C CN100426760C CNB2005100564842A CN200510056484A CN100426760C CN 100426760 C CN100426760 C CN 100426760C CN B2005100564842 A CNB2005100564842 A CN B2005100564842A CN 200510056484 A CN200510056484 A CN 200510056484A CN 100426760 C CN100426760 C CN 100426760C
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Abstract
The present invention discloses a method for realizing an optical board test by using a false module, which comprises the following procedures: a synchronous digital system tester sends business to a normal optical board with an optical module through optical fiber. A cross board of the synchronous digital system is configured. The business transited by the normal optical board is crossed on the optical board to be tested with the false optical module. The false optical module on the optical board to be tested makes the business looped back, sent to the normal optical board through a cross board, and sent back to the synchronous digital system tester through optical fiber after transited by the normal optical board, and a test of the synchronous digital system to the optical board to be tested is carried out. The present invention also discloses a device which uses the false module to realize the test of the optical board and the false optical module thereof. Due to the adoption of the present invention, the optical board can be ensured to be free of damage in the process of the optical board test at high speed, and thereby, production and test cost is reduced.
Description
Technical field
The present invention relates to the optical communication technology field, especially relate to a kind of method and device thereof that utilizes false optical module to realize the two-forty bare board test.
Background technology
As shown in Figure 1, conventional bare board test method is that tested tabula rasa links to each other with SDH (SDH (Synchronous Digital Hierarchy)) tester by optical fiber, the receipts light mouth of tested tabula rasa connects the light outlets of SDH tester, the light outlets of tested tabula rasa connects the receipts light mouth of SDH tester, the professional cross board loopback that passes through is given tested tabula rasa, whether like this, can test tabula rasa work with the SDH tester normal.
In SDH optical transmission, the optical module on the low rate tabula rasa is more cheap, has optical module during production, so often use method test shown in Figure 1.But, the tabula rasa of 10Gbit/s speed is relatively more expensive, mainly be the optical module (Transponder of 10Gbit/s speed, be optical transceiver) relatively more expensive, so, other parts (as veneer) on optical module and the tabula rasa are separately to make in the ordinary course of things, after veneer is produced, whether the veneer that needs test to produce is normal, but have only an optical module to use, when the conventionally test method that adopts as shown in Figure 1, need often unload optical module down to install on the tested veneer for test, do being easy to damage optical module like this, thereby increase the production test cost.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of method and device thereof that utilizes false module to realize bare board test, adopt the present invention to guarantee that optical module is not damaged in two-forty bare board test process, thereby reduce the production test cost.
In order to solve the problems of the technologies described above, the invention provides a kind of method of utilizing false module to realize bare board test, comprise the steps:
(a) the SDH (Synchronous Digital Hierarchy) tester is sent to the normal tabula rasa that has optical module with business by optical fiber;
(b) cross board on the configuration synchronization digital system will be installed on the cross board signal of telecommunication interconnection that normal tabula rasa and tested tabula rasa are received and dispatched, thereby the business after normal tabula rasa conversion is crossed on the tested tabula rasa of the optical module that has vacation;
(c) optical module of the vacation on the tested tabula rasa is sent to service loop on the normal tabula rasa through cross board, sends it back the SDH (Synchronous Digital Hierarchy) tester by optical fiber after normal tabula rasa conversion, realizes the test of SDH (Synchronous Digital Hierarchy) tester to tested tabula rasa.
Further, this method also has following characteristics: the optical module of described vacation links to each other the tranmitting data register end of tested tabula rasa and receive clock end, send data terminal and receives data terminal and link to each other, send the reference clock end and link to each other with the transmitting terminal clock end, and the error lock interface of receiving terminal and transmitting terminal be set to invalid, to realize service loop.
Further, this method also has following characteristics: when detecting tested tabula rasa and break down, if the power supply indicator on the tested tabula rasa does not work, illustrate that the power work on the tested tabula rasa is undesired, otherwise the 300 needle sockets welding existing problems that are provided with on the optical module of explanation vacation.
In order to solve the problems of the technologies described above, the present invention also provides a kind of device that utilizes false module to realize bare board test, include the SDH (Synchronous Digital Hierarchy) tester, have normal tabula rasa, the cross board on the synchronization digital system of optical module and have the tested tabula rasa of false optical module, the light outlets of SDH (Synchronous Digital Hierarchy) tester links to each other with the receipts light mouth of normal tabula rasa by optical fiber, and the receipts light mouth of SDH (Synchronous Digital Hierarchy) tester links to each other with the light outlets of normal tabula rasa by optical fiber; Normal tabula rasa and tested tabula rasa are installed on the cross board, make the business of normal tabula rasa can be crossed on the tested tabula rasa; The optical module that vacation on the tested tabula rasa is installed is the circuit board according to the service loop realized of the multi-source agreement design of 300 pin 10Gbit/s optical modules.
Further, this device also has following characteristics: by the optical module of described vacation, tranmitting data register end and receive clock end on the described tested tabula rasa interconnect, sending data terminal interconnects with the reception data terminal, send reference clock end and transmitting terminal clock end and interconnect, the error lock interface of receiving terminal and transmitting terminal inserts high level.
Further, this device also has following characteristics: described tested tabula rasa is provided with 300 female needle sockets, and the optical module of vacation is provided with 300 needle sockets of the public affairs that match with 300 female needle sockets.
The present invention also provides a kind of optical module of vacation, it is according to the multi-source agreement design of 300 pin 10Gbit/s optical modules, can be installed on the tested tabula rasa, and the tranmitting data register end on the tested tabula rasa and receive clock end link to each other, send data terminal and receive that data terminal links to each other, sends that the reference clock end links to each other with the transmitting terminal clock end, that the error lock interface of receiving terminal and transmitting terminal is set to is invalid.
Compared with prior art, the present invention utilizes false module to realize that the method and the device thereof of bare board test have the following advantages:
When utilizing the present invention that the two-forty tabula rasa is tested, only need the optical module of the vacation on the tested tabula rasa of dismounting, perhaps on each test tabula rasa, false optical module is installed all, and need not to touch expensive optical module, avoid it to sustain damage; Because false module is cheap, compared with prior art, reduces the production test cost effectively.
Description of drawings
Fig. 1 is a bare board test method conventional in the prior art;
Fig. 2 is that the present invention utilizes false module to realize the method and the schematic representation of apparatus thereof of bare board test;
Fig. 3 is the design diagram of the optical module of employed vacation among the present invention;
Fig. 4 is the schematic diagram that false optical module is installed on tested tabula rasa.
Embodiment
For understanding the present invention in depth, the present invention is described in detail below in conjunction with drawings and the specific embodiments.
The optical module of employed vacation is MSA (the Multi-Source Agreement according to the 10Gbit/s optical module of 300PIN (300 pin) among the present invention, multi-source agreement) agreement designs, be the circuit board that can realize service loop, the inside does not have optical device, and cost is very low.
As shown in Figure 2, utilize false module to realize that the device of bare board test comprises a SDH (Synchronous Digital Hierarchy) (being designated hereinafter simply as SDH) tester, a normal tabula rasa that has optical module among the present invention, cross board and a tested tabula rasa that has false optical module in SDH system.Owing to do not contain optical device in the false optical module, can not directly connect with the SDH tester, so need the normal tabula rasa of a light module.The SDH tester links to each other by the light mouth of optical fiber with normal tabula rasa, and the receipts light mouth of normal tabula rasa connects the light outlets of SDH tester, and the light outlets of normal tabula rasa connects the receipts light mouth of SDH tester.Normal tabula rasa is installed on the cross board with tested tabula rasa, and the configuration cross board makes the business of normal tabula rasa can be crossed on the tested tabula rasa, is about to be installed on the cross board signal of telecommunication interconnection that normally tabula rasa and tested tabula rasa are received and dispatched.Have the optical module of the vacation of the present invention's design on the tested tabula rasa, business is crossed on the tested tabula rasa by cross board, and false optical module carries out loopback to business, thereby whether can test tested tabula rasa work normal.
The design diagram of Jia optical module as shown in Figure 3, in the present embodiment, downstream Framer (framer) on the tested tabula rasa adopts the TSOT0410G chip of Lucent, according to the sending direction clock of this chip and the sequential chart of data, the sequential chart of receive direction clock and data, optical module by vacation, can be so that tranmitting data register end on the tested tabula rasa and receive clock end interconnect, sending data terminal interconnects with the reception data terminal, promptly RXDOUT[15:0] P/N is respectively with TXDIN[15:0] P/N links to each other, because it is anti-phase that clock needs, therefore RXPOCLKP is linked to each other with TXPICLKN, RXPOCLKN links to each other with TXPICLKP; Make the transmission reference clock end and the transmitting terminal clock end of tested tabula rasa interconnect, promptly TXREFCLKP/N is linked to each other with TXPCLKP/N; Make the receiving terminal of tested tabula rasa and the error lock interface of transmitting terminal insert high level, promptly TXLOCKERR and RXLOCKERR are met high level VCC33, because TXLOCKERR and RXLOCKERR are that low level is effective, therefore connecing high level makes it invalid.As shown in Figure 4, false optical module is a circuit board, which is provided with public 300PIN socket, tested tabula rasa is provided with the mother's who matches with public 300PIN socket 300PIN socket, public 300PIN socket is injected female 300PIN socket, the false optical module of realization is installed on the tested tabula rasa, and then realizes each above-mentioned connection, so that realize service loop.
Meet in the 10Gbit/s optical module of 300PIN of MSA consensus standard be provided with+5V ,+3.3V ,-5V ,+the 1.8V power supply, whether available indicator light indicates these several power works normal, if the bright expression power supply of lamp is normal, it is exactly that this power work is undesired that lamp does not work, if the power supply on the tested tabula rasa is no problem, may be exactly the socket welding existing problems of 300PIN.
Utilize false module to realize that the method for bare board test comprises the steps: among the present invention
Step 1, the SDH tester is sent to the normal tabula rasa that has optical module with business by optical fiber;
Step 2, normal tabula rasa receives professional, and light signal is converted to the signal of telecommunication;
Step 3, the configuration cross board makes the business of normal tabula rasa can be crossed on the tested tabula rasa, is about to the signal of telecommunication interconnection that normal tabula rasa and tested tabula rasa are received and dispatched;
Step 4, tested tabula rasa is sent to the signal of telecommunication that receives on the false optical module;
Step 5, false optical module receives the signal of telecommunication that tested tabula rasa sends, and this signal of telecommunication is forwarded to the transmitting terminal of tested tabula rasa, realizes service loop;
Step 6, tested tabula rasa send the signal of telecommunication and return the SDH tester through cross board, normal tabula rasa, finish the test of SDH tester to tested tabula rasa; Wherein, when detecting tested tabula rasa and break down,, illustrate that the power work on the tested tabula rasa is undesired if the power supply indicator on the tested tabula rasa does not work, otherwise the 300 needle sockets welding existing problems that are provided with on the false optical module of explanation.
Key of the present invention is by the research to the MSA agreement of the 10G optical module of 300PIN, design a kind of optical module of vacation, business is carried out loopback, test by method of testing focalization plate as shown in Figure 2, avoiding often dismounting and cause very expensive optical module to damage, is a kind of simple and effective technical means.
Claims (7)
1, a kind of method of utilizing false module to realize bare board test comprises the steps:
(a) the SDH (Synchronous Digital Hierarchy) tester is sent to the normal tabula rasa that has optical module with business by optical fiber;
(b) cross board on the configuration synchronization digital system, the signal of telecommunication interconnection that normal tabula rasa and tested tabula rasa are received and dispatched will be installed on the cross board, thereby the business after normal tabula rasa conversion is crossed on the tested tabula rasa that has false optical module, and the optical module of described vacation is the circuit board according to the realization service loop of the multi-source agreement design of 300 pin optical modules;
(c) optical module of the vacation on the tested tabula rasa is sent to service loop on the normal tabula rasa through cross board, sends it back the SDH (Synchronous Digital Hierarchy) tester by optical fiber after normal tabula rasa conversion, realizes the test of SDH (Synchronous Digital Hierarchy) tester to tested tabula rasa.
2, the method for utilizing false module to realize bare board test according to claim 1, it is characterized in that: the optical module of described vacation links to each other the tranmitting data register end of tested tabula rasa with the receive clock end, sending data terminal links to each other with the reception data terminal, sending the reference clock end links to each other with the transmitting terminal clock end, and the error lock interface of receiving terminal and transmitting terminal be set to invalid, to realize service loop.
3, the method for utilizing false module to realize bare board test according to claim 2, it is characterized in that: when detecting tested tabula rasa and break down, if the power supply indicator on the tested tabula rasa does not work, illustrate that the power work on the tested tabula rasa is undesired, otherwise the 300 needle sockets welding existing problems that are provided with on the optical module of explanation vacation.
4, a kind of device that utilizes false module to realize bare board test, include the SDH (Synchronous Digital Hierarchy) tester, it is characterized in that: this device also comprises normal tabula rasa, the cross board on the synchronization digital system that has optical module and has the tested tabula rasa of false optical module, the light outlets of SDH (Synchronous Digital Hierarchy) tester links to each other with the receipts light mouth of normal tabula rasa by optical fiber, and the receipts light mouth of SDH (Synchronous Digital Hierarchy) tester links to each other with the light outlets of normal tabula rasa by optical fiber; Normal tabula rasa and tested tabula rasa are installed on the cross board, make the business of normal tabula rasa can be crossed on the tested tabula rasa; The optical module that vacation on the tested tabula rasa is installed is the circuit board according to the realization service loop of the multi-source agreement design of 300 pin 10Gbit/s optical modules.
5, the device that utilizes false module to realize bare board test according to claim 4, it is characterized in that: by the optical module of described vacation, tranmitting data register end and receive clock end on the described tested tabula rasa interconnect, sending data terminal interconnects with the reception data terminal, send reference clock end and transmitting terminal clock end and interconnect, the error lock interface of receiving terminal and transmitting terminal inserts high level.
6, according to claim 4 or the 5 described devices that utilize false module to realize bare board test, it is characterized in that: described tested tabula rasa is provided with 300 female needle sockets, and the optical module of vacation is provided with 300 needle sockets of the public affairs that match with 300 female needle sockets.
7, a kind of optical module that is applied to the vacation of claim 1, it is characterized in that: this false optical module is according to the multi-source agreement design of 300 pin 10Gbit/s optical modules, be installed on the tested tabula rasa, and the tranmitting data register end on the tested tabula rasa is linked to each other with the receive clock end, sending data terminal links to each other with the reception data terminal, send the reference clock end and link to each other with the transmitting terminal clock end, it is invalid that the error lock interface of receiving terminal and transmitting terminal is set to.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100564842A CN100426760C (en) | 2005-03-24 | 2005-03-24 | Method for realizing bare board test using false module and its device |
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| CNB2005100564842A CN100426760C (en) | 2005-03-24 | 2005-03-24 | Method for realizing bare board test using false module and its device |
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| CN100426760C true CN100426760C (en) | 2008-10-15 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101534163B (en) * | 2008-03-10 | 2012-09-05 | 中兴通讯股份有限公司 | Method for testing optical plate and device thereof |
| CN101599808B (en) * | 2008-06-03 | 2013-04-24 | 华为技术有限公司 | Method and system for testing cross board |
| CN102647228B (en) * | 2012-03-31 | 2014-08-06 | 瑞斯康达科技发展股份有限公司 | Method, device and system for detecting SDH (Synchronous Digital Hierarchy) card |
| CN102647229B (en) * | 2012-04-16 | 2017-04-12 | 中兴通讯股份有限公司 | XFP (10 Gigabit Small Form Factor Pluggable) interface optical module self-loop method and device |
| CN103983821B (en) * | 2014-04-18 | 2016-08-24 | 烽火通信科技股份有限公司 | A kind of high frequency performance test structure of pluggable optical module adapter |
| CN105988073A (en) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | Detection device, detection system and single board |
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| CN1417986A (en) * | 2001-11-06 | 2003-05-14 | 华为技术有限公司 | Business intercommunication test method and device for asynchronous transferring mode exchange |
| CN1503480A (en) * | 2002-11-23 | 2004-06-09 | 深圳市中兴通讯股份有限公司 | Method for testing business monoboard |
| WO2004054187A2 (en) * | 2002-12-05 | 2004-06-24 | Cisco Technology, Inc. | Method for verifying function of redundant standby packet forwarder |
| US20040225951A1 (en) * | 2001-12-20 | 2004-11-11 | Rose Dana L. | Bit error rate test system for multi-source agreement compliant transceivers |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385973A (en) * | 2001-05-10 | 2002-12-18 | 深圳市中兴通讯股份有限公司上海第二研究所 | Power source single-board universal tester |
| CN1417986A (en) * | 2001-11-06 | 2003-05-14 | 华为技术有限公司 | Business intercommunication test method and device for asynchronous transferring mode exchange |
| US20040225951A1 (en) * | 2001-12-20 | 2004-11-11 | Rose Dana L. | Bit error rate test system for multi-source agreement compliant transceivers |
| CN1503480A (en) * | 2002-11-23 | 2004-06-09 | 深圳市中兴通讯股份有限公司 | Method for testing business monoboard |
| WO2004054187A2 (en) * | 2002-12-05 | 2004-06-24 | Cisco Technology, Inc. | Method for verifying function of redundant standby packet forwarder |
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