CN110492928B - BOB calibration test system and control method - Google Patents
BOB calibration test system and control method Download PDFInfo
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Abstract
The invention belongs to the field of optical fiber communication, and particularly relates to a BOB calibration test system and a control method, which comprise a 10G multichannel error code meter, a 1G multichannel error code meter, a 10G double-channel light source control system, a 1G double-channel light source control system, a high-speed double-channel optical switch module, a program control light control system, an optical splitter, a 1G optical power meter, a 10G optical power meter, a first optical switch, a second optical switch, a one-to-two wavelength division multiplexer and a one-to-two optical division multiplexer, and have the advantages that: by arranging a 10G and 1G multichannel error code instrument, a dual-channel light source control system, optical power and a plurality of optical switches, the BOB calibration test system can be compatible with a plurality of speeds and wavelengths so as to meet the test requirements of the existing optical fiber network products; meanwhile, the multi-channel test channel is arranged, so that one station, one computer and one worker can simultaneously test 8 optical fiber network products, and the test speed is greatly improved.
Description
Technical Field
The invention belongs to the field of optical fiber communication, and particularly relates to a BOB calibration test system and a control method.
Background
Before the optical network unit is put into use, the optical network unit needs to be calibrated and tested, but the existing BOB calibration test system is aimed at 1G products and cannot calibrate and test 10G optical network units, and meanwhile, the existing test system cannot calibrate and test a plurality of optical network units simultaneously, so that the production efficiency of enterprises is greatly reduced.
Disclosure of Invention
One of the objectives of the present invention is to provide a BOB calibration test system, which is used to test optical network products with multiple data streams and further improve the test efficiency.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a BOB calibration test system comprises a 10G multichannel error code meter, a 1G multichannel error code meter, a 10G double-channel light source control system, a 1G double-channel light source control system, a high-speed double-channel optical switch module, a program control light control system, an optical splitter, a 1G optical power meter, a 10G optical power meter, a first optical switch, a second optical switch, a one-to-two wavelength division multiplexer and a one-to-two optical division multiplexer;
the output end of the 10G multichannel error code instrument is connected with the input end of the 10G double-channel light source control system, the output end of the 1G multichannel error code instrument is connected with the input end of the 1G double-channel light source control system, the output ends of the 10G double-channel light source control system and the 1G double-channel light source control system are both connected with the input end of the high-speed double-channel optical switch module, the output end of the high-speed double-channel optical switch module is connected with the input end of the optical splitter, the output end of the optical splitter is connected with the input end of the program control system, the output end of the program control system is connected with the input end of the first optical switch, the output end of the first optical switch is connected with the input end of the one-to-two wavelength division multiplexer, the output end of the one-to-two wavelength division multiplexer is connected with the input end of the one-to-two optical switch, and the output end of the second optical switch is connected with a 1G optical power meter and a 10G optical power meter.
Furthermore, the optical splitter divides the optical path output by the high-speed dual-channel optical switch module into 8 paths, and 8 optical switches are respectively arranged on the first optical switch, the second optical switch, the one-to-two wavelength division multiplexer, the one-to-two optical division multiplexer, the 1G optical power meter and the 10G optical power meter.
The second objective of the present invention is to provide a control method for a BOB calibration test system, which has the following technical scheme:
a control method of a BOB calibration test system comprises the following steps:
the method comprises the following steps that a PC is respectively and electrically connected with a 10G multi-channel error code meter, a 1G multi-channel error code meter, a 10G double-channel light source control system, a 1G double-channel light source control system, a high-speed double-channel optical switch module, a program control light control system, a 1G optical power meter, a 10G optical power meter, an exchanger and a product server, and the exchanger and a BOB calibration test system are initialized;
selecting a data table to be tested, and switching the optical switch I, the optical switch II and the high-speed dual-channel optical switch module to a proper channel according to the configuration rate and the wavelength of the data table;
inserting two ends of the optical fiber network product into a switch and a one-to-two wavelength division multiplexer respectively;
and (3) click test: the PC reads whether the optical fiber network product is on-line or not through the switch, and if the optical fiber network product is on-line, the PC controls the MAC chip in the optical fiber network product through telnet to control the parameters of the optical fiber network product; if not, checking whether the connection of the optical fiber network product is normal;
calibration test start: adjusting optical power, adjusting extinction ratio, calibrating TX optical power and calibrating RX optical power;
writing an adjusted temperature compensation meter into the optical fiber network product;
and testing the alarm and alarm removal values of the LOS.
Further, the optical power adjustment comprises the following steps:
setting an adjustment range of an APC value of the BOSA in the optical network unit;
selecting an initial APC value in the adjusting range, and carrying out DAC value conversion according to the initial APC value, wherein the conversion formula is as follows: DAC =7.185 μ A2 ^ (APCSET/32), reading the optical power value according to the DAC value;
judging whether the optical power value is in a preset standard range, and if the optical power value is in the preset standard range, finishing the optical power adjustment; and if the optical power value is not in the preset standard range, calibrating the optical power by adopting a bisection method until the optical power value is in the preset standard range.
Further, the extinction ratio adjustment comprises the following steps:
setting gear scales of the eye chart instrument according to the size of light entering the eye chart instrument;
setting the value of the DAC modulating the current so that the ratio of the modulation current to the DAC is a fixed value;
and adjusting the magnitude of the modulation current according to the ratio of the modulation current to the DAC.
Further, the TX optical power calibration includes the following steps:
setting a time sequence table of the TX optical power, and controlling the size of the TX optical power value according to the value tested by the equipment.
Further, the RX optical power calibration includes the following steps:
respectively selecting a first received light spot, a second received light spot and a third received light spot, recording DAC values of photocurrents corresponding to the first received light spot, the second received light spot and the third received light spot, and establishing a quadratic equation according to the DAC values;
calculating a second-order coefficient according to a solved first-order quadratic equation;
and carrying out overflow processing according to the second-order coefficient.
Further, the testing of the alarm and de-alarm values of the LOS includes the following steps:
setting a fixed value as a level value for whether to alarm according to the alarm level of the optical fiber network product, transmitting light received by the optical fiber network product to an alarm point, judging whether the optical fiber network product has an alarm signal, if so, needing no adjustment, and if not, enabling the alarm signal to appear by setting the LOS value;
setting a fixed value as a level value for whether to alarm according to the alarm level of the optical fiber network product, sending light received by the optical fiber network product to an alarm point, judging whether an alarm signal appears in the optical fiber network product, if so, needing no adjustment, if not, reading the value of a current alarm register, and enabling the alarm signal to appear by adjusting the value of the alarm register.
Further, the switch has 16 paths, 8 of which are used for testing and the other 8 are used for preheating.
The invention has the advantages that: by arranging a 10G and 1G multichannel error code instrument, a dual-channel light source control system, optical power and a plurality of optical switches, the BOB calibration test system can be compatible with a plurality of speeds and wavelengths so as to meet the test requirements of the existing optical fiber network products; meanwhile, the multi-channel test channel is arranged, so that one station, one computer and one worker can simultaneously test 8 optical fiber network products, and the test speed is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the optical path of a BOB calibration test system;
FIG. 2 is a block diagram of the connection between the BOB calibration test system and the PC.
Detailed Description
The present invention will be described in further detail with reference to examples.
The embodiment provides a BOB calibration test system, which, as shown in fig. 1, includes a 10G multichannel error detector, a 1G multichannel error detector, a 10G dual-channel light source control system, a 1G dual-channel light source control system, a high-speed dual-channel optical switch module, a program control light control system, an optical splitter, a 1G optical power meter, a 10G optical power meter, an optical switch one, an optical switch two, a one-to-two wavelength division multiplexer, and a one-to-two optical division multiplexer; the output end of the 10G multichannel error code instrument is connected with the input end of the 10G double-channel light source control system, the output end of the 1G multichannel error code instrument is connected with the input end of the 1G double-channel light source control system, the output ends of the 10G double-channel light source control system and the 1G double-channel light source control system are both connected with the input end of the high-speed double-channel optical switch module, the output end of the high-speed double-channel optical switch module is connected with the input end of the optical splitter, the output end of the optical splitter is connected with the input end of the program control system, the output end of the program control system is connected with the input end of the first optical switch, the output end of the first optical switch is connected with the input end of the one-to-two wavelength division multiplexer, the output end of the one-to-two wavelength division multiplexer is connected with the input end of the one-to-two optical switch, and the output end of the second optical switch is connected with a 1G optical power meter and a 10G optical power meter. In this embodiment, the optical splitter divides the optical path output by the high-speed dual-channel optical switch module into 8 paths, and 8 optical switches are respectively a first optical switch, a second optical switch, a one-to-two wavelength division multiplexer, a one-to-two optical division multiplexer, a 1G optical power meter and a 10G optical power meter.
The control method of the BOB calibration test system comprises the following steps:
1. respectively electrically connecting a PC (personal computer) with a 10G multichannel error code meter, a 1G multichannel error code meter, a 10G double-channel light source control system, a 1G double-channel light source control system, a high-speed double-channel optical switch module, a program control light control system, a 1G optical power meter, a 10G optical power meter, an exchanger and a product server, and initializing the exchanger and a BOB calibration test system as shown in figure 2;
2. selecting a data table to be tested, and switching the optical switch I, the optical switch II and the high-speed dual-channel optical switch module to a proper channel according to the configuration rate and the wavelength of the data table;
3. inserting two ends of the optical fiber network product into a switch and a one-to-two wavelength division multiplexer respectively;
4. and (3) click test: the PC reads whether the optical fiber network product is on-line or not through the switch, and if the optical fiber network product is on-line, the PC controls the MAC chip in the optical fiber network product through telnet to control the parameters of the optical fiber network product; if not, checking whether the connection of the optical fiber network product is normal;
5. calibration test start: adjusting optical power, adjusting extinction ratio, calibrating TX optical power and calibrating RX optical power;
6. writing an adjusted temperature compensation meter into the optical fiber network product;
7. and testing the alarm and alarm removal values of the LOS.
During testing, light emitted by an error code meter (a 10G or 1G error code meter is selected according to product requirements) is divided into 8 paths by an optical splitter and then enters a program-controlled light-operated control system, the program-controlled light-operated control system attenuates the entering light and then enters a one-to-two wavelength division multiplexer after the wavelength is selected by an optical switch I, each path of light entering the wavelength division multiplexer is divided into two paths, one path of light flows to other testing equipment, and the other path of light enters an optical fiber network product for calibration testing; the light emitted by the optical fiber network product enters the wavelength division multiplexer and then is divided into two paths, one path of light flows to other testing equipment, the other path of light enters the one-to-two optical division multiplexer, the one-to-two optical division multiplexer divides the entered light into two paths, the other path of light flows to other testing equipment, and the other path of light enters the corresponding optical power meter after being selected by the two optical switches to be subjected to optical power testing (the light with the 1G rate enters the 1G optical power meter, and the light with the 10G rate enters the 10G optical power meter). 8 way go on simultaneously, the efficiency of software testing is high, and is suitable for the test with the light of multiple speed, and the router in this embodiment has 16 ways, and 8 of them are used for the test, and remaining 8 are used for preheating to after 8 of tests of test are ended, preheated 8 can directly test, have shortened the time of test greatly.
In this embodiment, the optical power adjustment includes the following steps:
1. setting an adjustment range of an APC value of the BOSA in the optical network unit;
2. selecting an initial APC value in the adjusting range, and carrying out DAC value conversion according to the initial APC value, wherein the conversion formula is as follows: DAC =7.185 μ A2 ^ (APCSET/32), reading the optical power value according to the DAC value;
3. judging whether the optical power value is in a preset standard range, and if the optical power value is in the preset standard range, finishing the optical power adjustment; and if the optical power value is not in the preset standard range, calibrating the optical power by adopting a bisection method until the optical power value is in the preset standard range.
The extinction ratio adjustment comprises the following steps:
1. setting gear scales of the eye chart instrument according to the size of light entering the eye chart instrument;
2. setting the value of the DAC modulating the current so that the ratio of the modulation current to the DAC is a fixed value;
3. and adjusting the magnitude of the modulation current according to the ratio of the modulation current to the DAC.
The TX optical power calibration comprises the following steps: setting a time sequence table of the TX optical power, and controlling the size of the TX optical power value according to the value tested by the equipment.
The RX optical power calibration comprises the following steps:
1. respectively selecting a first received light spot, a second received light spot and a third received light spot, recording DAC values of photocurrents corresponding to the first received light spot, the second received light spot and the third received light spot, and establishing a quadratic equation according to the DAC values;
2. calculating a second-order coefficient according to a solved first-order quadratic equation;
3. and carrying out overflow processing according to the second-order coefficient.
The LOS alarm and alarm removal value test comprises the following steps:
1. setting a fixed value as a level value for whether to alarm according to the alarm level of the optical fiber network product, transmitting light received by the optical fiber network product to an alarm point, judging whether the optical fiber network product generates an alarm signal, if so, the optical fiber network product does not need to be adjusted, if not, the alarm signal is generated by setting the LOS value, and the LOS value can be quickly adjusted through a bisection method;
2. setting a fixed value as a level value for whether to alarm according to the alarm level of the optical fiber network product, transmitting light received by the optical fiber network product to an alarm point, judging whether an alarm signal appears in the optical fiber network product, if so, no adjustment is needed, if not, reading the value of a current alarm register, enabling the alarm signal to appear by adjusting the value of the alarm register, and the value of the alarm register can be quickly adjusted by a dichotomy.
The above-mentioned embodiments are merely illustrative of the inventive concept and are not intended to limit the scope of the invention, which is defined by the claims and the insubstantial modifications of the inventive concept can be made without departing from the scope of the invention.
Claims (9)
1. A BOB calibration test system is characterized in that: the system comprises a 10G multichannel error code meter, a 1G multichannel error code meter, a 10G double-channel light source control system, a 1G double-channel light source control system, a high-speed double-channel optical switch module, a program control light control system, an optical splitter, a 1G optical power meter, a 10G optical power meter, an optical switch I, an optical switch II, a one-to-two wavelength division multiplexer and a one-to-two optical division multiplexer;
the output of 10G multichannel error code appearance is connected with 10G binary channels light source control system's input, the output of 1G multichannel error code appearance is connected with 1G binary channels light source control system's input, 10G binary channels light source control system and 1G binary channels light source control system's output all is connected with high-speed binary channels optical switch module's input, high-speed binary channels optical switch module's output is connected with optical splitter's input, optical splitter's output is connected with programme-controlled light control system's input, programme-controlled light control system's output is connected with the input of optical switch one, optical switch one's output is connected with one minute two wavelength division multiplexer's input, one minute two wavelength division multiplexer's output is connected with optical switch two's input, optical switch two's output even has 1G optical power meter and 10G optical power meter.
2. The BOB calibration test system of claim 1, wherein: the optical splitter divides the optical path output by the high-speed dual-channel optical switch module into 8 paths, and 8 optical switches are respectively arranged on the first optical switch, the second optical switch, the one-to-two wavelength division multiplexer, the one-to-two optical division multiplexer, the 1G optical power meter and the 10G optical power meter.
3. A control method based on the BOB calibration test system of claim 1 or 2, comprising the steps of:
the method comprises the following steps that a PC is respectively and electrically connected with a 10G multi-channel error code meter, a 1G multi-channel error code meter, a 10G double-channel light source control system, a 1G double-channel light source control system, a high-speed double-channel optical switch module, a program control light control system, a 1G optical power meter, a 10G optical power meter, an exchanger and a product server, and the exchanger and a BOB calibration test system are initialized;
selecting a data table to be tested, and switching the optical switch I, the optical switch II and the high-speed dual-channel optical switch module to a proper channel according to the configuration rate and the wavelength of the data table;
inserting two ends of the optical fiber network product into a switch and a one-to-two wavelength division multiplexer respectively;
and (3) click test: the PC reads whether the optical fiber network product is on-line or not through the switch, and if the optical fiber network product is on-line, the PC controls the MAC chip in the optical fiber network product through telnet to control the parameters of the optical fiber network product; if not, checking whether the connection of the optical fiber network product is normal;
calibration test start: adjusting optical power, adjusting extinction ratio, calibrating TX optical power and calibrating RX optical power;
writing an adjusted temperature compensation meter into the optical fiber network product;
and testing the alarm and alarm removal values of the LOS.
4. A method of controlling a BOB calibration test system according to claim 3, wherein: the optical power adjustment comprises the following steps:
setting the adjustment range of the APC value of the BOSA in the optical network unit;
selecting an initial APC value in the adjusting range, and carrying out DAC value conversion according to the initial APC value, wherein the conversion formula is as follows: DAC =7.185 μ A2 ^ (APCSET/32), reading the optical power value according to the DAC value;
judging whether the optical power value is in a preset standard range, and if the optical power value is in the preset standard range, finishing the optical power adjustment; and if the optical power value is not in the preset standard range, calibrating the optical power by adopting a bisection method until the optical power value is in the preset standard range.
5. A method of controlling a BOB calibration test system according to claim 3, wherein: the extinction ratio adjustment comprises the following steps:
setting gear scales of the eye chart instrument according to the size of light entering the eye chart instrument;
setting the value of the DAC modulating the current so that the ratio of the modulation current to the DAC is a fixed value;
and adjusting the magnitude of the modulation current according to the ratio of the modulation current to the DAC.
6. A method of controlling a BOB calibration test system according to claim 3, wherein: the TX optical power calibration comprises the following steps:
setting a time sequence table of the TX optical power, and controlling the size of the TX optical power value according to the value tested by the equipment.
7. A method of controlling a BOB calibration test system according to claim 3, wherein: the RX optical power calibration comprises the following steps:
respectively selecting a first received light spot, a second received light spot and a third received light spot, recording DAC values of photocurrents corresponding to the first received light spot, the second received light spot and the third received light spot, and establishing a quadratic equation according to the DAC values;
calculating a second-order coefficient according to a solved first-order quadratic equation;
and carrying out overflow processing according to the second-order coefficient.
8. A method of controlling a BOB calibration test system according to claim 3, wherein: the LOS alarm and alarm removal value test comprises the following steps:
setting a fixed value as a level value for whether to alarm according to the alarm level of the optical fiber network product, transmitting light received by the optical fiber network product to an alarm point, judging whether the optical fiber network product has an alarm signal, if so, needing no adjustment, and if not, enabling the alarm signal to appear by setting the LOS value;
setting a fixed value as a level value for whether to alarm according to the alarm level of the optical fiber network product, sending light received by the optical fiber network product to an alarm point, judging whether an alarm signal appears in the optical fiber network product, if so, needing no adjustment, if not, reading the value of a current alarm register, and enabling the alarm signal to appear by adjusting the value of the alarm register.
9. A method of controlling a BOB calibration test system according to claim 3, wherein: the switch has 16 lanes, 8 of which are used for testing and the remaining 8 for preheating.
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| CN112543053B (en) * | 2020-11-19 | 2022-05-03 | 深圳市友华通信技术有限公司 | BOB online correction method based on automatic calibration process |
| CN112865860B (en) * | 2021-01-05 | 2022-04-26 | 深圳市双翼科技股份有限公司 | Calibration method and device for trillion passive optical network BOB equipment |
| CN112821945B (en) * | 2021-02-20 | 2022-04-05 | 深圳市双翼科技股份有限公司 | BOSA test method, system, device and storage medium |
| CN114938242B (en) * | 2022-07-21 | 2023-04-28 | 深圳市亿联无限科技有限公司 | Nonlinear BOB power calibration method and system based on table lookup method and slope prediction |
| CN116016293B (en) * | 2023-03-22 | 2023-08-25 | 深圳市亿联无限科技股份有限公司 | Multi-task queue testing method, system and platform for network communication product production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790827A (en) * | 2016-04-19 | 2016-07-20 | 深圳极智联合科技股份有限公司 | Optical network terminal BOB calibration testing system and method thereof |
| CN109039445A (en) * | 2018-07-05 | 2018-12-18 | 四川长虹电器股份有限公司 | A kind of multichannel light cat commissioning test system and its commissioning method for testing |
| CN109167628A (en) * | 2018-11-02 | 2019-01-08 | 四川天邑康和通信股份有限公司 | A kind of BOB multiple channel test system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8805183B2 (en) * | 2012-02-08 | 2014-08-12 | Broadcom Corporation | Optical line terminal (OLT) and method therefore for performing in-band and out-band OTDR measurements |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790827A (en) * | 2016-04-19 | 2016-07-20 | 深圳极智联合科技股份有限公司 | Optical network terminal BOB calibration testing system and method thereof |
| CN109039445A (en) * | 2018-07-05 | 2018-12-18 | 四川长虹电器股份有限公司 | A kind of multichannel light cat commissioning test system and its commissioning method for testing |
| CN109167628A (en) * | 2018-11-02 | 2019-01-08 | 四川天邑康和通信股份有限公司 | A kind of BOB multiple channel test system |
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Denomination of invention: A BOB calibration test system and control method Effective date of registration: 20220803 Granted publication date: 20211231 Pledgee: Agricultural Bank of China Co., Ltd. Shaoxing Paojiang Sub-branch Pledgor: SHAOXING ZKTEL EQUIPMENT Co.,Ltd. Registration number: Y2022330001592 |