CN114337812A - Testing system of optical module capable of expanding multiple channels - Google Patents
Testing system of optical module capable of expanding multiple channels Download PDFInfo
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- CN114337812A CN114337812A CN202111663518.XA CN202111663518A CN114337812A CN 114337812 A CN114337812 A CN 114337812A CN 202111663518 A CN202111663518 A CN 202111663518A CN 114337812 A CN114337812 A CN 114337812A
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Abstract
The invention provides a testing system of an extensible multi-channel optical module, which comprises a PC, an exchanger, an error code meter, a testing board, an optical module, a multi-channel attenuator optical power meter, an optical switch and an optical oscillograph, wherein the PC is connected with the exchanger, the exchanger is respectively connected with the error code meter, the testing board, the multi-channel attenuator optical power meter and the optical oscillograph, the error code meter is connected with the testing board, the testing board is respectively connected with a plurality of optical modules, the multi-channel attenuator optical power meter is respectively connected with the optical module and the error code meter, one end of the optical switch is connected with the optical modules, and the other end of the optical switch is connected with the optical oscillograph. The invention has the advantages that the multi-channel of the invention expands the slot of the optical module in a way of connecting the test boards in parallel, the communication between each test board and the optical module is independent, and the error code test channel corresponding to each channel is also independent.
Description
Technical Field
The invention relates to the technical field of optical communication, in particular to a test system of an extensible multi-channel optical module.
Background
With the rapid popularization of the internet of things, the annual demand of optical communication products is stably promoted, and the production efficiency and performance test of optical modules are very important.
The upper computer of the existing factory optical module multi-channel test system communicates with an optical module through a serial port or USB-to-IIC, and the mode communicates with a plurality of modules in a time-sharing mode, so that simultaneous testing of a plurality of channels cannot be realized in a real sense.
The existing factory test board is generally a board which can be inserted with 16 or 32 modules, a single chip microcomputer is used for communicating with a PC through a serial port or a USB, the single chip microcomputer is single-thread, and communication with a plurality of modules can be realized only in a time slice mode, so that although multi-channel debugging of the optical module can be realized, the efficiency is not improved greatly.
The design of the error code meter of the existing manufacturer is that one path of signal comes out, a channel is selected for a module signal through an optical switch, 2 modules cannot be tested simultaneously, and error codes are tested through time sharing, so that the improvement of the testing efficiency is not too large, and the plugging and unplugging time of the modules can only be saved.
Disclosure of Invention
The invention provides a testing system of an extensible multichannel optical module, which comprises a PC, an exchanger, an error code meter, a testing board, an optical module, a multichannel attenuator optical power meter, an optical switch and an optical oscillograph, wherein the error code meter, the testing board, the optical module, the multichannel attenuator optical power meter, the optical switch and the optical oscillograph are all multiple, the PC is connected with the exchanger, the exchanger is respectively connected with the error code meter, the testing board, the multichannel attenuator optical power meter and the optical oscillograph, the error code meter is connected with the testing board, the testing board is respectively connected with the multiple optical modules, the multichannel attenuator optical power meter is respectively connected with the optical module and the error code meter, one end of the optical switch is connected with the multiple optical modules, and the other end of the optical switch is connected with the optical oscillograph, the error code meter, the test board, the multi-channel attenuator optical power meter and the optical oscillograph are all provided with independent IP addresses.
As a further improvement of the present invention, the switch is connected to the error code detector, the test board, the multi-channel attenuator optical power meter, and the optical oscilloscope through RJ45 interfaces.
As a further improvement of the invention, the error code meter is provided with a light source, and the multi-channel attenuator optical power meter is connected with the light source of the error code meter.
As a further improvement of the invention, the test board is respectively connected with four optical modules.
As a further improvement of the invention, the bottom layer of the error code meter uses a UDP protocol in network communication to realize a UDP server and always monitors the request of the client.
As a further improvement of the invention, the bottom layer of the test board uses a UDP protocol in network communication to realize a UDP server side and always monitors the request of the client side.
As a further improvement of the present invention, the test system further comprises a database, and the PC is connected to the database.
The invention has the beneficial effects that: the multi-channel test board expands the slot of the optical module in a parallel connection mode, the communication between each test board and the optical module is independent, and the error code test channel corresponding to each channel is also independent.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
As shown in FIG. 1, the invention discloses a testing system of an extensible multi-channel optical module, which comprises a PC, a switch, an error code meter, a testing board, an optical module, a multi-channel attenuator optical power meter, an optical switch and an optical oscilloscope, wherein the error code meter, the testing board, the optical module, the multi-channel attenuator optical power meter, the optical switch and the optical oscilloscope are all provided with a plurality of numbers, the PC is connected with the switch, the switch is respectively connected with the error code meter, the testing board, the multi-channel attenuator optical power meter and the optical oscilloscope, the error code meter is connected with the testing board, the testing board is respectively connected with a plurality of the optical modules, the multi-channel attenuator optical power meter is respectively connected with the optical module and the error code meter, one end of the optical switch is connected with a plurality of the optical modules, and the other end of the optical switch is connected with the optical oscilloscope, the error code meter, the test board, the multi-channel attenuator optical power meter and the optical oscillograph are all provided with independent IP addresses.
The switch is respectively connected with the error code meter, the test board, the multi-channel attenuator optical power meter and the optical oscillograph through RJ45 interfaces.
The error code instrument is provided with a light source, and the multi-channel attenuator optical power meter is connected with the light source of the error code instrument.
And the test board is respectively connected with the four optical modules.
The test system also comprises a database, and the PC is connected with the database.
In the test system, the error code meter, the test board and the multi-channel attenuator optical power meter can be matched with IP addresses, for example, the test board 1IP address is 192.168.150.1, the error code meter 1IP address is 192.168.151.1, the multi-channel attenuator optical power meter 1IP address is 192.168.152.1, the optical oscilloscope 1IP address is 192.168.153.1, the test board 2IP address is 192.168.150.2, the error code meter 2IP address is 192.168.151.2, the multi-channel attenuator optical power meter 2IP address is 192.168.152.2, the optical oscilloscope 2IP address is 192.168.153.2, and so on, each test device can be independently controlled, and thus, a test channel can be expanded all the time.
The bottom layer of the error code meter is a UDP server side realized by using a UDP protocol in network communication and is used for monitoring the request of the client side all the time. The upper computer establishes communication by using the IP and the port number, and each channel in the test system can establish a thread to detect the error code condition of the channel, so that the error code of the independent test module of each channel is realized.
The bottom layer of the test board also realizes a UDP server by using a UDP protocol in network communication and monitors the request of the client all the time. The upper computer establishes communication by using an IP and a port number, and each channel in the test system establishes thread and module communication to realize module write configuration, debug optical module parameters such as module optical power, extinction ratio, cross point, jitter, DDM calibration and the like, thereby realizing independent test module error codes of each channel.
The invention is applied to the automatic debugging and testing functions during the production of the optical module, and the testing system ensures that all indexes of the optical module reach the optimal performance when the optical module leaves the factory. The test board, the error code meter and the optical switch are all self-developed, independent IP addresses can be configured, a UDP (user datagram protocol) protocol is sampled between the board and the PC, and each channel can independently communicate without influencing each other, so that the test channel can be infinitely expanded (expanded according to the test capability of staff) in the aspect of implementation mode. The design of the extensible multi-channel test is flexible and changeable, and the production efficiency can be greatly improved.
In summary, in the conventional multi-channel optical module test system, a plurality of optical module slots are formed in one board, and the communication mode between the MCU and the upper computer is USB or serial, which can only realize multi-channel in a time-sharing manner. The multi-channel test board expands the slot of the optical module in a parallel connection mode, the communication between each test board and the optical module is independent, and the error code test channel corresponding to each channel is also independent. The self-research error code test board of the invention is designed by four channels, each test board can output four paths of signals, and can be connected with an error code tester in parallel, namely each channel can test error codes independently, therefore, the efficiency of the whole test system can be improved by several times.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (7)
1. A test system of an extensible multichannel optical module is characterized in that: the optical power meter is respectively connected with the optical modules and the code error indicator, one end of the optical switch is connected with the plurality of optical modules, the other end of the optical switch is connected with the optical code indicator, the code error indicator, the test board, the multi-channel attenuator optical power meter, the optical switch and the optical code indicator, And the optical oscillographs are provided with independent IP addresses.
2. The test system of claim 1, wherein: the switch is respectively connected with the error code meter, the test board, the multi-channel attenuator optical power meter and the optical oscillograph through RJ45 interfaces.
3. The test system of claim 1, wherein: the error code instrument is provided with a light source, and the multi-channel attenuator optical power meter is connected with the light source of the error code instrument.
4. The test system of claim 1, wherein: and the test board is respectively connected with the four optical modules.
5. The test system of claim 1, wherein: the bottom layer of the error code meter is a UDP server side realized by using a UDP protocol in network communication and monitors the request of a client side all the time.
6. The test system of claim 1, wherein: the bottom layer of the test board realizes a UDP server side by using a UDP protocol in network communication and monitors the request of a client side all the time.
7. The test system according to any one of claims 1 to 6, wherein: the test system also comprises a database, and the PC is connected with the database.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111663518.XA CN114337812A (en) | 2021-12-30 | 2021-12-30 | Testing system of optical module capable of expanding multiple channels |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111663518.XA CN114337812A (en) | 2021-12-30 | 2021-12-30 | Testing system of optical module capable of expanding multiple channels |
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| CN114337812A true CN114337812A (en) | 2022-04-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049113A (en) * | 2015-06-17 | 2015-11-11 | 武汉光迅科技股份有限公司 | Active optical module multi-channel automatic test system and method |
| CN105871459A (en) * | 2016-05-05 | 2016-08-17 | 成都君禾天成科技有限公司 | Optical module test system applied to optical communication field |
| CN208508939U (en) * | 2018-07-27 | 2019-02-15 | 深圳市极致兴通科技有限公司 | A kind of the optical module test device and system of full rate four-way |
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2021
- 2021-12-30 CN CN202111663518.XA patent/CN114337812A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049113A (en) * | 2015-06-17 | 2015-11-11 | 武汉光迅科技股份有限公司 | Active optical module multi-channel automatic test system and method |
| CN105871459A (en) * | 2016-05-05 | 2016-08-17 | 成都君禾天成科技有限公司 | Optical module test system applied to optical communication field |
| CN208508939U (en) * | 2018-07-27 | 2019-02-15 | 深圳市极致兴通科技有限公司 | A kind of the optical module test device and system of full rate four-way |
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