CN102098186A - QSFP (Quad Small Form-factor Pluggable) module detecting system and detecting method - Google Patents
QSFP (Quad Small Form-factor Pluggable) module detecting system and detecting method Download PDFInfo
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- CN102098186A CN102098186A CN201010593672XA CN201010593672A CN102098186A CN 102098186 A CN102098186 A CN 102098186A CN 201010593672X A CN201010593672X A CN 201010593672XA CN 201010593672 A CN201010593672 A CN 201010593672A CN 102098186 A CN102098186 A CN 102098186A
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Abstract
The invention discloses a QSFP (Quad Small Form-factor Pluggable) module detecting system and a detecting method, wherein the system comprises a bit error rate tester and two cross matrixes, wherein a transmission end of the bit error rate tester is connected with any one pair of input terminals of the first cross matrix; a receiving end of the bit error rate tester is connected with any one pair of output terminals of the second cross matrix; the output terminal of the first cross matrix and the input terminal of the second cross matrix are respectively connected with the input terminal and the output terminal of the to-be-tested QSFP; and the two cross matrixes are respectively connected with a main control chip. When in testing, under the control of the control chip, the terminals connected with the cross matrixes and the bit error rate tester are sequentially conducted with the terminal of self opposite terminals so as to sequentially test each passage of the to-be-tested QSFP. In the method provided by the invention, advantages of two QSFP testing methods in the prior art is combined, the digital cross matrixes is adopted to replace the expensive four-channel bit error rate tester, manual operation is automatically replaced so as to flexibly switch signal passages by programming and configuring the cross matrixes, the apparatus cost is reduced and the testing efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of detection system, specifically, is a kind of QSFP (Quad Small Form-factor Pluggable, four path parallel module) module detection system.
Background technology
The high speed interconnected communication just has been the focus when previous development, especially in applications such as data communication, telecommunications switch, router, convergence and backboards, the urgent demand to high density, big bandwidth, easy care, low-cost solution has been proposed all.And QSFP arises at the historic moment in order to satisfy this solution.QSFP speed and density all are better than 4 channel C X4 interfaces, owing to can under the identical port volume of XFP (10 Gigabit Small Form Factor Pluggable), support the transfer of data of four passages with the speed of every path 10 Gbps, so the density of QSFP can reach 4 times of the XFP product, 3 times of SFP+ product.The QSFP interface is adopted by the InfiniBand standard.
Existing QSFP test macro and method more complicated and loaded down with trivial details.Two kinds of method of testings commonly at present: first kind, need an Error Detector of being furnished with 16 of four-ways (8 pairs) signal terminal, 8 (4 pairs) emission terminal, 8 (4 pairs) receive terminal, need 16 coaxial lines again, these 16 signal terminals are connected to 16 signal pins ports of QSFP, by Error Detector being provided with one by one test or the synchronism detection of realization to each passage; Second kind, need an Error Detector of being furnished with 4 of single channels (2 pairs) signal terminal exactly, 2 (1 pair) emission terminal, 2 (1 pair) receives terminal, needs 4 coaxial lines that 4 signal terminals of Error Detector are connected to certain passage to be measured, and other passages are connected to ground by 50 ohm of terminals, test after the passage, repeat above-mentioned step again, amount to 4 times, finish test a QSFP module.
Can see thus,, but need an Error Detector of being furnished with four-way, cost an arm and a leg, share the equipment cost height on every product though first kind of method of testing is quick; Second kind of method of testing only needs one common to be furnished with single pass Error Detector, though equipment cost significantly reduces, testing procedure is loaded down with trivial details, and efficient is low, has increased the man-hour of product greatly.
Summary of the invention
The technical problem to be solved in the present invention provides the QSFP module detection system that a kind of cost is low, easy to use and detection efficiency is high.The present invention also provides a kind of QSFP module detection method.
In order to solve the problems of the technologies described above, the invention provides a kind of four path parallel module QSFP module detection system, comprise Error Detector, first cross matrix and second cross matrix, described first cross matrix and second cross matrix have four pairs of input terminals and four pairs of lead-out terminals respectively; Described first cross matrix of emission termination of described Error Detector arbitrary to input terminal, the input terminal of QSFP is surveyed in the lead-out terminal reception of described first cross matrix; The lead-out terminal of described QSFP to be measured connects the input terminal of described second cross matrix, arbitrary receiving terminal that lead-out terminal is connect described Error Detector of described second cross matrix; Described first cross matrix is connected with a master control chip respectively with second cross matrix.
Further, the lead-out terminal of described first cross matrix is connected with the input terminal of described QSFP to be measured with the QSFP standard socket by evaluation board; The lead-out terminal of described QSFP to be measured is connected with the input terminal of evaluation board with described second cross matrix by the QSFP standard socket.
Further, described master control chip also is connected with host computer.
Further, described second cross matrix be connected with receiving terminal described Error Detector that lead-out terminal also is connected with oscilloscope.
Further, described Error Detector is the single channel Error Detector.
The present invention also provides a kind of four path parallel module QSFP module detection method, comprising:
1) transmitting terminal with Error Detector connects the arbitrary to input terminal of first cross matrix, the lead-out terminal reception of described first cross matrix is surveyed the input terminal of QSFP, the lead-out terminal of described QSFP to be measured is connect the input terminal of second cross matrix, the arbitrary of described second cross matrix connect the receiving terminal of described Error Detector to lead-out terminal, described first cross matrix is connected with a master control chip respectively with second cross matrix;
The input terminal that is connected with described Error Detector transmitting terminal of 2) master control chip controls, first cross matrix and the first lead-out terminal conducting of first cross matrix, and control the lead-out terminal that is connected with described Error Detector receiving terminal and the sub-conducting of first input end of second cross matrix, the first passage of described QSFP to be measured is detected; After finishing, detection cuts off above-mentioned conducting;
The input terminal that is connected with described Error Detector transmitting terminal of 3) master control chip controls, first cross matrix successively with first cross matrix second and third, four lead-out terminal conductings, and the lead-out terminal that is connected with described Error Detector receiving terminal of corresponding control second cross matrix successively with second and third, the sub-conducting of four-input terminal, successively to described QSFP to be measured second and third, four-way detects; And behind the intact passage of every detection, cut off the corresponding conducting of passing through.
Further, after testing all passages of described QSFP to be measured, exchange the order at described QSFP to be measured two ends, repeating said steps 1)～step 3).
Further, the lead-out terminal of described first cross matrix is connected with the input terminal of described QSFP to be measured with the QSFP standard socket by evaluation board; The lead-out terminal of described QSFP to be measured is connected with the input terminal of evaluation board with described second cross matrix by the QSFP standard socket.
Further, described master control chip also is connected with host computer, and described master control chip is according to the input terminal of described first cross matrix of the commands for controlling of described host computer and second cross matrix and the conducting and the cut-out of lead-out terminal.
Further, described Error Detector is the single channel Error Detector.
The present invention adopts the digital crossover matrix to replace expensive four-way Error Detector in conjunction with the advantage of the method for testing of two kinds of QSFP in the prior art; By programmed configurations to cross matrix, replace the manual flexible switching signal path of realizing automatically, it has improved testing efficiency greatly when reducing equipment cost.
Description of drawings
Fig. 1 is the schematic diagram of cross matrix in the QSFP module detection system of the present invention;
Fig. 2 is the principle schematic of QSFP module detection system one embodiment of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, the cross matrix support is the speed of the highest 11Gbps, and input has 100 ohm differential impedance, and output has 50 ohm single-ended impedance, and programmable output voltage swing.By programming to cross matrix, can dispose the various combination of input channel and output channel, realize the switching of signal path flexibly.In the cross matrix shown in Figure 1, A1～A4 is respectively four pairs of input terminals, and Y1～Y4 is respectively four pairs of lead-out terminals, according to switch command, and conducting arbitrarily between the four pairs of input terminals and the four pairs of lead-out terminals.
As shown in Figure 2, and please be simultaneously with reference to Fig. 1, four path parallel module QSFP module detection system of the present invention comprises Error Detector, first cross matrix and second cross matrix.Wherein, first cross matrix and second cross matrix have four pairs of input terminals and four pairs of lead-out terminals respectively.The transmitting terminal of Error Detector is connected among the A1～A4 of first cross matrix pair of input terminals (present embodiment is selected the A1 input terminal) arbitrarily by coaxial line, the input terminal of QSFP is surveyed in the lead-out terminal Y1 of first cross matrix～Y4 reception; The lead-out terminal of QSFP to be measured connects the input terminal of second cross matrix, arbitrary receiving terminal that lead-out terminal (present embodiment is selected the Y1 lead-out terminal) is connected Error Detector by coaxial line of second cross matrix; First cross matrix is connected with a master control chip respectively with second cross matrix.Specifically, the lead-out terminal of first cross matrix can be connected with the input terminal of QSFP to be measured with the QSFP standard socket by evaluation board; And the lead-out terminal of QSFP to be measured can be connected with the input terminal of evaluation board with second cross matrix by the QSFP standard socket.
During detection, at first each apparatus module is installed by above-mentioned annexation, by the input terminal that is connected with the Error Detector transmitting terminal (being A1 in the present embodiment) of master control chip controls first cross matrix and first lead-out terminal (Y1) conducting of first cross matrix, and control the lead-out terminal that is connected with the Error Detector receiving terminal (in the present embodiment for Y1) and the sub-conducting of first input end of second cross matrix, the first passage of QSFP to be measured is detected; After finishing, detection cuts off above-mentioned conducting;
By above-mentioned steps detect successively QSFP to be measured second and third, four-way.Be master control chip controls first cross matrix the input terminal that is connected with the Error Detector transmitting terminal successively with first cross matrix second and third, four lead-out terminal conductings, and the lead-out terminal that is connected with the Error Detector receiving terminal of corresponding control second cross matrix successively with second and third, the sub-conducting of four-input terminal, successively to QSFP to be measured second and third, four-way detects; And behind the intact passage of every detection, cut off the corresponding conducting of passing through.
After having detected all four passages of QSFP to be measured, the order at QSFP to be measured two ends is exchanged, repeat above-mentioned steps, finish the test of whole module.
Wherein, the master control chip also is connected with host computer, the cross matrix switch is programmed by the master control chip by host computer.The master control chip is according to commands for controlling first cross matrix and the input terminal of second cross matrix and the conducting and the cut-out of lead-out terminal of host computer.
Second cross matrix be connected with receiving terminal Error Detector that lead-out terminal also is connected with oscilloscope, be used for QSFP to be measured is carried out electric eye figure test.
Error Detector among the present invention mainly is meant the single channel Error Detector.
Claims (10)
1. a four path parallel module QSFP module detection system is characterized in that, comprise Error Detector, first cross matrix and second cross matrix, described first cross matrix and second cross matrix have four pairs of input terminals and four pairs of lead-out terminals respectively; Described first cross matrix of emission termination of described Error Detector arbitrary to input terminal, the input terminal of QSFP is surveyed in the lead-out terminal reception of described first cross matrix; The lead-out terminal of described QSFP to be measured connects the input terminal of described second cross matrix, arbitrary receiving terminal that lead-out terminal is connect described Error Detector of described second cross matrix; Described first cross matrix is connected with a master control chip respectively with second cross matrix.
2. QSFP module detection system according to claim 1 is characterized in that, the lead-out terminal of described first cross matrix is connected with the input terminal of described QSFP to be measured with the QSFP standard socket by evaluation board; The lead-out terminal of described QSFP to be measured is connected with the input terminal of evaluation board with described second cross matrix by the QSFP standard socket.
3. QSFP module detection system according to claim 1 is characterized in that described master control chip also is connected with host computer.
4. QSFP module detection system according to claim 1 is characterized in that, described second cross matrix be connected with receiving terminal described Error Detector that lead-out terminal also is connected with oscilloscope.
5. according to any described QSFP module detection system in the claim 1～4, it is characterized in that described Error Detector is the single channel Error Detector.
6. a four path parallel module QSFP module detection method is characterized in that, comprising:
1) transmitting terminal with Error Detector connects the arbitrary to input terminal of first cross matrix, the lead-out terminal reception of described first cross matrix is surveyed the input terminal of QSFP, the lead-out terminal of described QSFP to be measured is connect the input terminal of second cross matrix, the arbitrary of described second cross matrix connect the receiving terminal of described Error Detector to lead-out terminal, described first cross matrix is connected with a master control chip respectively with second cross matrix;
The input terminal that is connected with described Error Detector transmitting terminal of 2) master control chip controls, first cross matrix and the first lead-out terminal conducting of first cross matrix, and control the lead-out terminal that is connected with described Error Detector receiving terminal and the sub-conducting of first input end of second cross matrix, the first passage of described QSFP to be measured is detected; After finishing, detection cuts off above-mentioned conducting;
The input terminal that is connected with described Error Detector transmitting terminal of 3) master control chip controls, first cross matrix successively with first cross matrix second and third, four lead-out terminal conductings, and the lead-out terminal that is connected with described Error Detector receiving terminal of corresponding control second cross matrix successively with second and third, the sub-conducting of four-input terminal, successively to described QSFP to be measured second and third, four-way detects; And behind the intact passage of every detection, cut off the corresponding conducting of passing through.
7. QSFP module detection method according to claim 6 is characterized in that, after testing all passages of described QSFP to be measured, exchanges the order at described QSFP to be measured two ends, repeating said steps 1)～step 3).
8. QSFP module detection method according to claim 6 is characterized in that, the lead-out terminal of described first cross matrix is connected with the input terminal of described QSFP to be measured with the QSFP standard socket by evaluation board; The lead-out terminal of described QSFP to be measured is connected with the input terminal of evaluation board with described second cross matrix by the QSFP standard socket.
9. QSFP module detection method according to claim 6, it is characterized in that, described master control chip also is connected with host computer, and described master control chip is according to the input terminal of described first cross matrix of the commands for controlling of described host computer and second cross matrix and the conducting and the cut-out of lead-out terminal.
10. according to any described QSFP module detection method of claim 6～9, it is characterized in that described Error Detector is the single channel Error Detector.
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| CN102819477A (en) * | 2012-08-28 | 2012-12-12 | 曙光信息产业(北京)有限公司 | Board fault test method and fault test card |
| CN102843184A (en) * | 2012-08-28 | 2012-12-26 | 中兴通讯股份有限公司 | Quad small form-factor pluggable (QSFP) loopback device for test |
| CN110677193A (en) * | 2019-09-05 | 2020-01-10 | 深圳市极致兴通科技有限公司 | Industrial-grade PAM4200G error code testing device |
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| CN201409138Y (en) * | 2009-05-14 | 2010-02-17 | 华为技术有限公司 | Test board |
| EP2197218A1 (en) * | 2007-09-19 | 2010-06-16 | ZTE Corporation | A shared bus distributed intercross device |
| CN101902272A (en) * | 2010-07-07 | 2010-12-01 | 东莞市铭普实业有限公司 | Optical transceiver module SFP tester |
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| EP2197218A1 (en) * | 2007-09-19 | 2010-06-16 | ZTE Corporation | A shared bus distributed intercross device |
| CN201397230Y (en) * | 2009-03-23 | 2010-02-03 | 群邦电子(苏州)有限公司 | SFP light receiving-emitting module test evaluation circuit board |
| CN201409138Y (en) * | 2009-05-14 | 2010-02-17 | 华为技术有限公司 | Test board |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819477A (en) * | 2012-08-28 | 2012-12-12 | 曙光信息产业(北京)有限公司 | Board fault test method and fault test card |
| CN102843184A (en) * | 2012-08-28 | 2012-12-26 | 中兴通讯股份有限公司 | Quad small form-factor pluggable (QSFP) loopback device for test |
| WO2014032523A1 (en) * | 2012-08-28 | 2014-03-06 | 中兴通讯股份有限公司 | Quad small form-factor pluggable loopback device for test |
| CN102819477B (en) * | 2012-08-28 | 2015-07-29 | 曙光信息产业(北京)有限公司 | A kind of fault testing method of board and fault test card |
| CN110677193A (en) * | 2019-09-05 | 2020-01-10 | 深圳市极致兴通科技有限公司 | Industrial-grade PAM4200G error code testing device |
| CN110677193B (en) * | 2019-09-05 | 2022-08-19 | 深圳市极致兴通科技有限公司 | Industrial-grade PAM 4200G error code testing device |
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Application publication date: 20110615 |