A multi-CFP module test board

Abstract

The utility model discloses a multi-CFP module test board, each test board has a plurality of detection modules, each detection module is connected to a CFP module to be tested; the test board also includes: a voltage detection unit, the voltage detection unit has a plurality of first voltage receiving terminals, each of the first voltage receiving terminals is connected to each of the detection modules; a test docking channel, the test docking channel includes an external interface of an external ECU module, and a plurality of internal interfaces connected to each of the detection modules; the operation result of each CFP module is transmitted to the ECU module through the test docking channel. By setting a plurality of the detection modules, a plurality of CFP modules are embedded therein, and the test docking channel is used to send the plurality of CFP modules to the ECU or the upper computer, and the voltage status is sent to the voltage detection unit through another channel, and the voltage detection unit can be connected with an indicator light, which displays whether the voltage is normal.

Description

Technical Field

[0001] The utility model belongs to the technical field of CFP module testing, in particular to a multi-CFP module testing board. Background Art

[0002] At present, the test of CFP modules usually embeds the CFP modules into a test board, then connects the real or simulated working signals to the CFP modules, and then collects various working states of the CFP modules through the test board. In some cases where large-scale testing of multiple CFP modules is required, such as aging testing of a large number of CFP2 modules, if a single CFP module test board existing in the prior art is used, each test board can only measure a single CFP2 module, and a large number of test boards are required to embed multiple CFP2 modules one by one, which increases the cost and takes up space. Utility Model Content

[0003] In view of the above problems, the utility model discloses a multi-CFP module test board, each test board has multiple detection modules, each of the detection modules is connected to a CFP module to be tested;

[0004] The test board also includes:

[0005] A voltage detection unit, wherein the voltage detection unit has a plurality of first voltage receiving terminals, each of which is connected to each of the detection modules;

[0006] A test docking channel, the test docking channel includes an external interface connected to an ECU module and multiple internal interfaces connected to each of the detection modules; the operation result of each CFP module is transmitted to the ECU module through the test docking channel.

[0007] In some exemplary embodiments, the test docking channel includes an input channel and an output channel, the input channel includes a plurality of the internal interfaces, and the output channel includes a plurality of the external interfaces.

[0008] In some exemplary embodiments, a polling module is further provided between the external interface and the ECU module;

[0009] The polling module has a plurality of secondary input terminals and one or more secondary output terminals, each of the secondary input terminals is connected to each of the primary input terminals, and the secondary output terminals are connected to the ECU module;

[0010] Each of the secondary input terminals is provided with a number, and the signal transmitted from the secondary output terminal to the ECU module carries information of the number.

[0011] In some exemplary embodiments, the polling module is a multiplexing chip.

[0012] In some exemplary embodiments, a signal channel is further included, wherein the signal channel corresponds to each of the detection modules one by one, and the signal channel is connected to the detection modules by signal;

[0013] The input channel also includes a first command output terminal connected to each of the signal channels;

[0014] The ECU module is also externally connected to a host computer, and the host computer is directly connected to the input channel, or indirectly connected to the input channel through the ECU module.

[0015] In some exemplary embodiments, a signal distribution module is further provided between the host computer and the input channel;

[0016] The signal distribution module has a first command receiving end and a plurality of distribution transmission ends;

[0017] Each of the first command receiving ends is correspondingly connected to one of the host computers, and each of the distribution transmission ends is connected to each of the signal channels.

[0018] In some exemplary embodiments, a monitoring unit is further included, wherein the monitoring unit includes a plurality of second command output terminals and a plurality of second voltage receiving terminals;

[0019] The second voltage receiving end is connected to the voltage detection unit and is used to receive the voltage value measured by the voltage detection unit;

[0020] The second command output terminal is connected to the signal channel and is used for sending a stop command.

[0021] In some exemplary embodiments, an indicator light is further provided, and the indicator light is connected to the voltage detection unit;

[0022] The ECU module is also externally connected to a debugging interface.

[0023] The beneficial effect of the utility model is that by setting a plurality of the detection modules, a plurality of CFP modules are embedded therein, the test docking channel is used to send the voltage status of the plurality of CFP modules to the ECU or the host computer, and the voltage status is sent to the voltage detection unit through another channel, and the voltage detection unit can be connected to an indicator light, and the indicator light is used to display whether the voltage is normal. Therefore, in the utility model, not only multiple CFP modules are detected simultaneously by a detection board, but also the voltage detection is independently detected to quickly learn the voltage status.

[0024] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A structural diagram of a multi-CFP module test board according to an embodiment of the utility model is shown;

[0027] Figure 2 A structural diagram of a multi-CFP module test board according to an embodiment of the utility model is shown;

[0028] Figure 3 A structural diagram of a multi-CFP module test board according to an embodiment of the utility model is shown;

[0029] Figure 4 A structural diagram of a multi-CFP module test board according to an embodiment of the utility model is shown;

[0030] Figure 5 A schematic diagram showing a product according to an embodiment of the utility model for detecting a CFP2 module is shown;

[0031] In the accompanying drawings: 1-first voltage receiving terminal, 2-internal interface, 3-external interface, 4-primary input terminal, 5-primary output terminal, 6-secondary input terminal, 7-secondary output terminal, 8-signal channel, 9-first command output terminal, 10-distribution transmission terminal, 11-first command receiving terminal, 12-second command output terminal, 13-second voltage receiving terminal;

[0032] 22-detection module, 33-voltage detection unit, 44-test docking channel. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] First embodiment: Currently, in order to test various performances and indicators of CFP optical modules, such as aging tests, it is necessary to detect various parameters of CFP optical modules. Currently, most existing CFP optical module test boards are structures that can only set a single CFP optical module, and multiple CFP optical modules cannot be tested on one test board. Therefore, the present application discloses a multi-CFP module test board for testing multiple CFP modules.

[0035] For specific structure, please refer to Figure 1 For understanding, each of the multi-CFP module test boards has multiple detection modules 22, refer to Figure 1 As shown, the main body of the test board has n detection modules 22 . It is easy to understand that each of the detection modules 22 is connected to a corresponding CFP module to be tested.

[0036] In this example, the test board also includes:

[0037] A voltage detection unit 33, wherein the voltage detection unit 33 has a plurality of first voltage receiving terminals 1, each of which is connected to each of the detection modules 22. A voltage detection chip may be used, such as an ADS1115 chip. In this specific example, the ADS1115 chip has four input ports and can accurately detect the voltages of four CFP modules. In different situations, a plurality of voltage detection units 33 may be provided to detect the voltages of more CFP modules.

[0038] In the aforementioned specific embodiment, the first voltage receiving terminal 1 is a pin.

[0039] A test docking channel 44, the test docking channel 44 includes an external interface 3 of an external ECU module, and multiple internal interfaces 2 internally connected to each of the detection modules 22; the operation result of each CFP module is transmitted to the ECU module through the test docking channel 44. The external interface 3 can be a standard USB interface, which is convenient for connecting to an external ECU module or a computer system to perform data transmission and exchange of control commands. The internal interface 2 is directly connected to each detection module 22 through the circuit integrated on the board to form an efficient data transmission network.

[0040] The operation results may include, but are not limited to, key performance parameters such as optical power, wavelength stability, signal-to-noise ratio (SNR), etc. These data are transmitted to the ECU module via the test docking channel 44, and the ECU module performs summary analysis to determine whether the module meets the predetermined performance standards.

[0041] Based on the above structure, the test board in this example tests multiple CFP modules arranged therein. During the aging test, multiple test boards can be arranged in a multi-layer box for testing to obtain data information.

[0042] In addition, the voltage detection unit 33 described in this embodiment is separated from the connection port for detecting the operation function of the CFP module, that is, the voltage detection unit 33 independently tests the CFP module. In fact, as one of the basic parameters affecting the performance of the optical module, the stability of the voltage is directly related to the normal operation of the module. By independently setting the voltage detection unit 33, not only the data processing burden of the ECU module is reduced, but more importantly, when the voltage fluctuates abnormally, the problem can be quickly discovered through the voltage detection unit 33, and adjustments or interventions can be made in time without the need for processing by the ECU module.

[0043] Second embodiment: Based on the above embodiment, in this example, reference Figure 2 It is understood that the test docking channel 44 includes an input channel and an output channel, the input channel includes a plurality of the internal interfaces 2, and the output channel includes a plurality of the external interfaces 3. In fact, the external interface 3 and the internal interface 2 are separated and explained for the convenience of understanding. In the physical structure of a specific product, the receiving and sending functions may be realized by one channel. Regardless of whether the sending and receiving functions of the channel are separated, they should fall within the protection scope of the present utility model.

[0044] Third embodiment: Based on the above embodiment, the applicant also considers that multiple CFP modules are connected to the ECU module. Although the ECU module can identify that there is an abnormality in the operation of the CFP module, it cannot immediately determine which CFP module has a fault. In view of the above problem, a test board is further disclosed in this example. The specific structure is referenced Figure 3 It is understood that a polling module is also provided between the external interface and the ECU module.

[0045] The polling module has a plurality of secondary input terminals 6 and one or more secondary output terminals 7. Each of the secondary input terminals 6 is connected to each of the primary input terminals 4, and the secondary output terminals 7 are connected to the ECU module. In fact, the secondary input terminals 6 can receive various signals in the operation state output by the primary output terminals 5 one by one, and then send the operation results generated by each CFP module to the ECU module one by one through the secondary output terminals 7.

[0046] In this embodiment, the ECU module can check the operating status of each CFP module one by one, so as to accurately determine which module has an abnormality in the first time. Specifically, the polling module has a plurality of secondary input terminals 6 and at least one secondary output terminal 7, wherein each secondary input terminal 6 is respectively connected to the corresponding primary input terminal 4. Therefore, the polling module can collect operating data from all CFP modules, and transmit the operating results of each CFP module to the ECU module in turn. When a CFP module fails, the ECU module quickly responds to identify the failed CFP module.

[0047] In a further preferred embodiment, each of the secondary input terminals 6 is provided with a number, and the signal transmitted to the ECU module by the secondary output terminal 7 carries the information of the number. Each secondary input terminal 6 of the total polling module of this embodiment is assigned a unique number, and when the signal is transmitted to the ECU module through the secondary output terminal 7, the signal will carry the corresponding number information. With the help of the number information, the ECU module simplifies the process of quickly identifying and locating the faulty CFP module, and the ECU module can quickly identify which specific CFP module has a problem.

[0048] In a preferred embodiment, the polling module is a multiplexing chip, for example, a CD74HC4067 chip, which is a 16-channel digital multiplexer / demultiplexer that can selectively direct any one of 16 input signals to an output terminal according to different control signals.

[0049] Fourth embodiment: Based on the above embodiments, it is not difficult to understand that in some exemplary embodiments, the test board further includes a signal channel 8. The specific structure can be referred to Figure 1-3 The signal channel 8 corresponds to each detection module 22 one by one, and the signal channel 8 is connected to the detection module 22. Each signal channel 8 corresponds to a detection module 22 one by one, forming an independent signal transmission path, which is connected through an integrated circuit in this example.

[0050] In this example, the input channel also includes a first command output terminal 9 connected to each of the signal channels 8. The ECU module is also externally connected to a host computer, which is directly connected to the input channel or indirectly connected to the input channel through the ECU module. The simulated work instructions sent by the host computer are transmitted to each CFP module through the signal channel 8, thereby simulating different working environments and conditions and testing the performance of the CFP module.

[0051] In one example, the structure reference Figure 3As shown, compared with the prior art in which one host computer is connected to one CFP module, this example requires one host computer to send analog work commands to multiple CFP modules, so in this example a signal distribution module is further provided between the host computer and the input channel.

[0052] The signal distribution module has a first command receiving terminal 11 and a plurality of distribution delivery terminals 10, each of the first command receiving terminals 11 is connected to a corresponding host computer, and each of the distribution delivery terminals 10 is connected to each of the signal channels 8. The signal distribution module receives a single working instruction from the host computer, and copies and distributes the instruction to a plurality of signal channels 8, thereby sending the same command to each CFP module. The signal distribution module can be a programmable logic device such as FPGA or CPLD.

[0053] In some different embodiments, the test board is also provided with an indicator light, which is an LED indicator light. The indicator light is connected to the voltage detection unit 33 and can indicate the normal working voltage of the module and the operating status of the module. The ECU module is also externally connected to a debugging interface, and the ECU module is debugged through the debugging interface.

[0054] Fifth embodiment: Based on the above embodiments, in this example, the structure reference Figure 4 The detection board also includes a monitoring unit, which includes a plurality of second command output terminals 12 and a plurality of second voltage receiving terminals 13.

[0055] The second voltage receiving terminal 13 is connected to the voltage detection unit 33, and is used to receive the voltage value measured by the voltage detection unit 33. In some embodiments, the monitoring unit includes one or more microprocessors or microcontrollers for analyzing the voltage value. The monitoring unit can determine the current voltage state based on a preset voltage threshold. For example, if the measured voltage value exceeds the normal working range (the established upper or lower limit), the monitoring unit determines that the voltage state is abnormal. When making a voltage state judgment, the monitoring unit can consider the allowable range of instantaneous voltage fluctuations to avoid misjudgment due to short-term voltage fluctuations.

[0056] Or detect the level signal of the CFP module. Once the monitoring unit determines that the level signal of a CFP module is abnormal, it sends a stop command to the corresponding signal channel 8 through the second command output terminal 12. This stop command is designed to immediately stop all activities of the module to prevent hardware damage or data loss that may be caused by voltage abnormality. This fast response mechanism is achieved through a high-speed communication link established between the monitoring unit and the signal channel 8, ensuring the immediacy and accuracy of command transmission.

[0057] Sixth embodiment: Based on the above embodiment, refer to Figure 5 The product shown is used to detect CFP2 modules. The detection board is an integrated circuit board, including the detection module 22 arranged on the integrated circuit board. The detection module 22 is provided with the signal channel 8 at one end and multiple voltage detection units 33 at the other end. In this example, the signal channel 8 is connected to the test docking channel 44 through an integrated circuit. The test board in this example is used in the aging test, and each test board can detect multiple CFP2 modules, effectively improving the test efficiency.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-CFP module test board, characterized in that: Each test board is provided with a plurality of detection modules (22), each of the detection modules (22) being connected to a CFP module to be tested; The test board also includes: A voltage detection unit (33), the voltage detection unit (33) being provided with a number of first voltage receiving terminals (1) corresponding to the number of detection modules (22), the first voltage receiving terminals (1) being connected to the detection modules (22); A test docking channel (44), the test docking channel (44) comprising an external interface (3) of an externally connected ECU module and an internal interface (2) of an internally connected detection module (22); the CFP module is signal-connected to the ECU module via the test docking channel (44).

2. The multi-CFP module test board according to claim 1, characterized in that: The test docking channel (44) has a plurality of internal interfaces (2), and the internal interfaces (2) form an input channel; the external interfaces (3) have a plurality of external interfaces, and the external interfaces (3) form an output channel.

3. The multi-CFP module test board according to claim 2, characterized in that: A polling module is also provided between the external interface (3) and the ECU module; The polling module has a plurality of secondary input terminals (6) and secondary output terminals (7), each of the secondary input terminals (6) is connected to each of the primary input terminals (4), and the secondary output terminals (7) are connected to the ECU module; Each of the secondary input terminals (6) is provided with a number, and the signal transmitted from the secondary output terminal (7) to the ECU module carries information of the number.

4. The multi-CFP module test board according to claim 3, characterized in that: The polling module is a multiplexing chip.

5. The multi-CFP module test board according to claim 3, characterized in that: It also includes a signal channel (8), wherein the signal channel (8) corresponds to each of the detection modules (22) on a one-to-one basis, and a signal connection is established between the signal channel (8) and the detection module (22); The input channel further comprises a first command output terminal (9) connected to each of the signal channels (8); The ECU module is also externally connected to a host computer, and the host computer is directly connected to the input channel, or indirectly connected to the input channel through the ECU module.

6. The multi-CFP module test board according to claim 5, characterized in that: A signal distribution module is also provided between the host computer and the input channel; The signal distribution module has a first command receiving end (11) and a plurality of distribution transmission ends (10); Each of the first command receiving ends (11) is connected to a corresponding host computer, and each of the distribution transmission ends (10) is connected to each of the signal channels (8).

7. The multi-CFP module test board according to claim 5, characterized in that: It also includes a monitoring unit, the monitoring unit including a plurality of second command output terminals (12) and a plurality of second voltage receiving terminals (13); The second voltage receiving terminal (13) is connected to the voltage detection unit (33) and is used to receive the voltage value measured by the voltage detection unit (33); The second command output terminal (12) is connected to the signal channel (8) and is used to send a stop command.

8. The multi-CFP module test board according to claim 1, characterized in that: An indicator light is also provided, and the indicator light is connected to the voltage detection unit (33); The ECU module is also externally connected to a debugging interface.

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