A method for measuring the voltage performance of an optical module

Abstract

This invention provides a method for measuring the voltage performance of an optical module, relating to the field of optical communication technology. The method includes setting up a test environment; gradually increasing or decreasing the input voltage of an adjustable power supply module within a voltage test range based on an initial voltage adjustment step size, while maintaining a constant voltage for a first voltage stabilization time; monitoring the service status through a service monitoring module and determining the voltage boundary based on the service status; performing multiple voltage jumps within the test interval based on the initial voltage jump value and the jump amplitude increment, maintaining a constant voltage for a second voltage stabilization time after each voltage jump; monitoring the service status through the service monitoring module and determining the maximum tolerable voltage jump value based on the service status; and outputting the voltage boundary and the maximum tolerable voltage jump value. This invention, using the above method, achieves accurate quantification of the voltage tolerance capability of optical modules, providing data support for their reliability design in complex power supply environments, while balancing test accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the field of optical communication technology, specifically to a method for measuring the voltage performance of an optical module. Background Technology

[0002] Optical modules are the core components in optical communication systems that convert photoelectric signals, and their operational stability directly determines communication quality. Currently, the standard operating voltage of optical modules is mostly 3.3V, but in practical applications, factors such as changes in the power supply system load and line losses can cause fluctuations in the input voltage. When voltage fluctuations exceed the tolerance range of the optical module, it may cause faults such as service interruptions and data packet loss.

[0003] Existing methods for testing optical module voltage have the following drawbacks:

[0004] 1. Only the stability of the rated voltage (3300mV) or a few fixed voltage points is tested, and the wide range of voltage fluctuation scenarios is not covered;

[0005] 2. The lack of precise positioning of the "voltage boundary of business stability" (minimum / maximum input voltage) makes the test results unable to reflect the critical fault points in actual applications;

[0006] 3. The voltage fluctuation test jump value is fixed. If the jump value is too small, the test efficiency is low. If it is too large, the maximum tolerable voltage jump value (ΔV) cannot be accurately obtained, making it difficult to support the power supply adaptation optimization of the optical module.

[0007] Therefore, a method is needed that can accurately locate voltage boundaries and efficiently test maximum fluctuation tolerance to address the shortcomings of existing technologies. Summary of the Invention

[0008] To overcome the existing technical problems, the present invention provides a method for measuring the voltage performance of an optical module.

[0009] The present invention adopts the following technical solution.

[0010] A method for measuring the voltage performance of an optical module includes the following steps:

[0011] S1. The test environment is built using an adjustable voltage power supply module, an optical module under test, and a service monitoring module.

[0012] S2. Identify whether there is a preset voltage boundary. If yes, execute S3. Otherwise, set the voltage test range, initial voltage adjustment step size, and first voltage stabilization time of the adjustable power supply module. Within the voltage test range, gradually increase or decrease the input voltage of the adjustable power supply module according to the initial voltage adjustment step size, and keep the voltage unchanged for the first voltage stabilization time after each increase or decrease. Monitor the service status through the service monitoring module and determine the voltage boundary according to the service status.

[0013] S3. Generate a test interval based on the voltage boundary, set the initial voltage jump value, jump amplitude increment and second voltage stabilization time of the adjustable voltage power supply module, perform multiple voltage jumps based on the initial voltage jump value and jump amplitude increment within the test interval, and keep the voltage unchanged for the second voltage stabilization time after each voltage jump, monitor the service status through the service monitoring module, and determine the maximum tolerable voltage jump value based on the service status.

[0014] S4, output voltage boundary and maximum withstandable voltage jump value.

[0015] As a further improvement of the present invention, in S2, the input voltage of the adjustable voltage power supply module is gradually increased according to the initial voltage adjustment step size within the voltage test range;

[0016] The specific steps for determining voltage boundaries based on operational status include:

[0017] S211. If the service status changes from an abnormal state to a stable state, record the current voltage value as the minimum input voltage.

[0018] S212. If the service status changes from a stable state to an abnormal state, record the voltage value of the previous voltage level as the maximum input voltage.

[0019] S213. If the service states between the minimum and maximum input voltages are both stable states, then generate voltage boundaries based on the minimum and maximum input voltages.

[0020] As a further improvement of the present invention, in S2, the input voltage of the adjustable voltage power supply module is gradually reduced according to the initial voltage adjustment step size within the voltage test range;

[0021] The specific steps for determining voltage boundaries based on operational status include:

[0022] S221. If the service status changes from an abnormal state to a stable state, record the current voltage value as the maximum input voltage.

[0023] S222. If the service status changes from a stable state to an abnormal state, record the previous voltage value of the current voltage value as the minimum input voltage.

[0024] S223. If the service states between the minimum and maximum input voltages are both stable states, then generate voltage boundaries based on the minimum and maximum input voltages.

[0025] As a further improvement of the present invention, in S3, multiple voltage jumps are performed within the test interval based on the initial voltage jump value and the jump amplitude increment, and the voltage remains unchanged for a second voltage stabilization time after each voltage jump. The specific steps for monitoring the service status through the service monitoring module and determining the maximum tolerable voltage jump value based on the service status include:

[0026] S31. Within the test interval, multiple voltage jumps are performed based on the initial voltage jump value. The service monitoring module monitors the current voltage value and the current jump value. The adjustable power supply module keeps the current voltage value unchanged after each voltage jump within the second voltage stabilization time. The service monitoring module monitors the service status. If the service status remains stable, the sum of the initial voltage jump value and the jump amplitude increment is calculated and overwritten to update the initial voltage jump value. S31 is then executed again.

[0027] If the business state switches to an abnormal state at least once, the initial voltage jump value is overwritten by the current jump value before the update and recorded as the maximum tolerable voltage jump value.

[0028] As a further improvement of the present invention, the business status includes an abnormal status;

[0029] The specific steps for monitoring the business status through the business monitoring module include: determining that the business status is in an abnormal state when the interruption duration is greater than or equal to 1ms or when a code error occurs.

[0030] As a further improvement of the present invention, the voltage transition mode includes transition from low voltage to high voltage or transition from high voltage to low voltage, and the transition start point of the voltage transition covers all voltage nodes within the test interval.

[0031] As a further improvement of the present invention, in S2, the specific steps of determining the voltage boundary according to the service status include: if the service status of the first voltage test is a stable state, or the service status of the last voltage test is a stable state, then the corresponding voltage test range is expanded and overwritten and updated, and S2 is re-executed.

[0032] As a further improvement of the present invention, the service monitoring module is an optical communication analyzer. The service status includes abnormal status and stable status. The service parameters used to determine the abnormal status include at least one of transmission rate, signal interruption duration, and packet loss rate. Furthermore, a service abnormality judgment threshold can be preset to determine the judgment criteria for the abnormal status.

[0033] As a further improvement of the present invention, the jump amplitude increment is greater than 0mV.

[0034] The beneficial effects of this invention are as follows:

[0035] 1. Precisely locate critical values: By testing in small steps, accurately obtain the minimum / maximum input voltage for stable operation of the optical module under test, providing a clear voltage boundary reference for power supply system design.

[0036] 2. Efficient test of fluctuation tolerance: Tests are conducted by incrementally increasing jump values ​​within known voltage boundaries, balancing test efficiency and accuracy, and avoiding blind testing.

[0037] 3. More comprehensive data support: It simultaneously outputs voltage boundaries and maximum tolerable voltage jump values, covering the performance requirements of the optical module under test under static voltage and dynamic fluctuation scenarios.

[0038] 4. High versatility: The test parameters can be flexibly adjusted according to the characteristics of different optical modules under test, and it is suitable for testing various 3.3V input optical modules. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a flowchart illustrating the present invention;

[0041] Figure 2 This is a block diagram of the test environment for this invention. Detailed Implementation

[0042] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0043] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0044] Reference Figures 1 to 2 As can be seen, a method for measuring the voltage performance of an optical module includes the following steps:

[0045] S1. The test environment is built using an adjustable voltage power supply module, an optical module under test, and a service monitoring module.

[0046] S2. Identify whether there is a preset voltage boundary. If yes, execute S3. Otherwise, set the voltage test range, initial voltage adjustment step size, and first voltage stabilization time of the adjustable power supply module. Within the voltage test range, gradually increase or decrease the input voltage of the adjustable power supply module according to the initial voltage adjustment step size, and keep the voltage unchanged for the first voltage stabilization time after each increase or decrease. Monitor the service status through the service monitoring module and determine the voltage boundary according to the service status.

[0047] S3. Generate a test interval based on the voltage boundary, set the initial voltage jump value, jump amplitude increment and second voltage stabilization time of the adjustable voltage power supply module, perform multiple voltage jumps based on the initial voltage jump value and jump amplitude increment within the test interval, and keep the voltage unchanged for the second voltage stabilization time after each voltage jump, monitor the service status through the service monitoring module, and determine the maximum tolerable voltage jump value based on the service status.

[0048] S4, output voltage boundary and maximum withstandable voltage jump value.

[0049] Specifically, the voltage adjustment accuracy is ≤1mV, and the output accuracy of the input voltage is ≤1mV.

[0050] 1. Precisely locate critical values: By testing in small steps, accurately obtain the minimum / maximum input voltage for stable operation of the optical module under test, providing a clear voltage boundary reference for power supply system design.

[0051] 2. Efficient test of fluctuation tolerance: Tests are conducted by incrementally increasing jump values ​​within known voltage boundaries, balancing test efficiency and accuracy, and avoiding blind testing.

[0052] 3. More comprehensive data support: It simultaneously outputs voltage boundaries and maximum tolerable voltage jump values, covering the performance requirements of the optical module under test under static voltage and dynamic fluctuation scenarios.

[0053] 4. High versatility: The test parameters can be flexibly adjusted according to the characteristics of different optical modules under test, and it is suitable for testing various 3.3V input optical modules.

[0054] It should be noted that this invention allows users to directly specify the specific values ​​of the minimum and maximum input voltages (i.e., preset voltage boundaries) for stable service of the optical module under test, eliminating the need for the voltage boundary test in S2 and directly proceeding to the maximum tolerable voltage jump value test in S3. Simultaneously, it supports users to independently specify the minimum and maximum input voltages and a fixed initial voltage jump value (i.e., the jump amplitude increment is set to 0). Within the test interval, multiple reciprocating voltage jumps (including bidirectional jumps from low to high voltage and from high to low voltage) are performed with the initial voltage jump value as the amplitude, continuously monitoring and verifying the service stability of the optical module under test under this fluctuation mode.

[0055] As a further improvement of the present invention, in S2, the input voltage of the adjustable voltage power supply module is gradually increased according to the initial voltage adjustment step size within the voltage test range;

[0056] The specific steps for determining voltage boundaries based on operational status include:

[0057] S211. If the service status changes from an abnormal state to a stable state, record the current voltage value as the minimum input voltage.

[0058] S212. If the service status changes from a stable state to an abnormal state, record the voltage value of the previous voltage level as the maximum input voltage.

[0059] S213. If the service states between the minimum and maximum input voltages are both stable states, then generate voltage boundaries based on the minimum and maximum input voltages.

[0060] Step S213 emphasizes the requirement to verify the service status of all intermediate voltage nodes between the minimum and maximum input voltages. This design ensures that the service stability of the optical module is continuous and without dead zones throughout the entire operating voltage window, providing end-to-end proof of the reliable operation of the optical module under test within voltage boundaries.

[0061] As a further improvement of the present invention, in S2, the input voltage of the adjustable voltage power supply module is gradually reduced according to the initial voltage adjustment step size within the voltage test range;

[0062] The specific steps for determining voltage boundaries based on operational status include:

[0063] S221. If the service status changes from an abnormal state to a stable state, record the current voltage value as the maximum input voltage.

[0064] S222. If the service status changes from a stable state to an abnormal state, record the previous voltage value of the current voltage value as the minimum input voltage.

[0065] S223. If the service states between the minimum and maximum input voltages are both stable states, then generate voltage boundaries based on the minimum and maximum input voltages.

[0066] By searching for voltage boundaries by gradually decreasing the voltage from high to low, an alternative execution scheme is provided for voltage performance testing of optical modules under test. When the test environment or the characteristics of the optical module under test make scanning from low to high difficult, such as when the optical module under test experiences a long-delay unstable state during the low-voltage startup phase, a high-to-low scanning strategy can be adopted to bypass startup transient interference and directly locate the boundary within the stable operating region, thus enhancing the adaptability of the test method to different types of optical modules.

[0067] As a preferred approach, after obtaining the voltage boundary using the boost scan in steps S211-S213, the same optical module under test can be reverse-engineered using the buck scan in steps S221-S223. If the boundary values ​​measured in the two directions are highly consistent, it indicates that the voltage withstand characteristics of the optical module under test have good consistency; if there are significant differences, it can reveal that there is a hysteresis effect or thermal hysteresis effect in the internal circuit of the optical module under test, providing analytical clues for the subsequent optimization of the optical module under test.

[0068] As a further improvement of the present invention, in S3, multiple voltage jumps are performed within the test interval based on the initial voltage jump value and the jump amplitude increment, and the voltage remains unchanged for a second voltage stabilization time after each voltage jump. The specific steps for monitoring the service status through the service monitoring module and determining the maximum tolerable voltage jump value based on the service status include:

[0069] S31. Within the test interval, multiple voltage jumps are performed based on the initial voltage jump value. The service monitoring module monitors the current voltage value and the current jump value. The adjustable power supply module keeps the current voltage value unchanged after each voltage jump within the second voltage stabilization time. The service monitoring module monitors the service status. If the service status remains stable, the sum of the initial voltage jump value and the jump amplitude increment is calculated and overwritten to update the initial voltage jump value. S31 is then executed again.

[0070] If the business state switches to an abnormal state at least once, the initial voltage jump value is overwritten by the current jump value before the update and recorded as the maximum tolerable voltage jump value.

[0071] This scheme uses a small initial voltage jump value as a safe starting point and gradually amplifies the disturbance intensity with incremental jump amplitudes, enabling the test process to converge unidirectionally from the fault-free safe zone to the fault-critical zone. Compared to exhaustive testing that traverses all possible jump values, this algorithm significantly reduces testing time costs while avoiding the risk of irreversible damage to the optical module under test in the early stages of testing due to directly using large jump values, and preventing subsequent retesting of the maximum tolerable voltage jump value. Specifically, the maximum jump amplitude of this invention is not less than the voltage amplitude difference that the optical module under test can withstand.

[0072] As a further improvement of the present invention, the business status includes an abnormal status;

[0073] The specific steps for monitoring the business status through the business monitoring module include: determining that the business status is in an abnormal state when the interruption duration is greater than or equal to 1ms or when a code error occurs.

[0074] The abnormal business status is clearly defined as "interruption duration greater than or equal to 1ms or the occurrence of a code error", transforming the vague status that relies on human experience in traditional testing into a condition that can be accurately determined.

[0075] The 1ms interrupt duration setting corresponds to the smallest perceptible fault granularity at the optical communication service level, while the bit error rate criterion directly corresponds to the core indicator of the transmission quality of the optical module's physical layer. This definition eliminates the result deviation caused by differences in criteria between different testers and different test batches, ensuring that the measurement results of voltage boundaries and maximum tolerable voltage jump values ​​have cross-platform and cross-time consistency.

[0076] Of course, customers can preset business anomaly detection thresholds to determine the criteria for judging abnormal states.

[0077] As a further improvement of the present invention, the voltage transition mode includes transition from low voltage to high voltage or transition from high voltage to low voltage, and the transition start point of the voltage transition covers all voltage nodes within the test interval.

[0078] As a further improvement of the present invention, in S2, the specific steps of determining the voltage boundary according to the service status include: if the service status of the first voltage test is a stable state, or the service status of the last voltage test is a stable state, then the corresponding voltage test range is expanded and overwritten and updated, and S2 is re-executed.

[0079] For example, the voltage test range of this invention is 2900mV-3700mV. If the optical module under test is stable at 2900mV, the voltage test range is extended to 2800mV to accurately locate the minimum input voltage. Similarly, if the optical module under test is stable at 3700mV, the voltage test range is extended to the 3800mV range to accurately locate the maximum input voltage.

[0080] Specifically, the optical module under test is a 3.3V input optical communication module, including any one of the SFP+, QSFP, OSFP, and CFP series optical modules.

[0081] As a further improvement of the present invention, the service monitoring module is an optical communication analyzer. The service status includes abnormal status and stable status. The service parameters used to determine the abnormal status include at least one of transmission rate, signal interruption duration, and packet loss rate. Furthermore, a service abnormality judgment threshold can be preset to determine the judgment criteria for the abnormal status.

[0082] As a further improvement of the present invention, the voltage jump increment is greater than or equal to 0mV. The voltage jump increment can be set to 0mV, that is, a fixed voltage jump value ΔV is used; within the test range, multiple reciprocating voltage jumps (including bidirectional jumps from low voltage to high voltage and from high voltage to low voltage) are performed with the voltage jump value ΔV as the amplitude, and the number of voltage jump tests can be customized by the user or set to an unlimited number of tests. The test continues until the user actively exits or the business monitoring module detects an abnormal state.

[0083] For ease of understanding, the present invention provides examples to describe the complete steps:

[0084] Adjustable voltage power supply module: The programmable power supply module is selected, with an output voltage test range of 2900mV-3700mV, a voltage output accuracy of ≤1mV, and supports the customization of various test parameters.

[0085] The optical module under test is a 100G QSFP28 optical module with a nominal input voltage of 3.3V.

[0086] Service monitoring module: Ethernet tester, set to transmission rate of 100Gbps, data format of NRZ, used to monitor the service status of the optical module under test in real time (such as whether the signal transmission is interrupted, whether there is packet loss, and when the interruption time is ≥1ms or bit error occurs, it is judged as "abnormal status").

[0087] Initial parameters: initial voltage adjustment step size = 5mV, first voltage stabilization time = 30s; of course, the first voltage stabilization time can be set between 1s and 60s, and the initial voltage adjustment step size can be adjusted to any value within the range of 1mV-10mV according to the type of optical module to be tested.

[0088] Testing process:

[0089] When the voltage is 2900mV, the service monitoring module detects a signal interruption (abnormality).

[0090] When the voltage was gradually increased to 2950mV, the service returned to stability. The minimum input voltage was recorded as 2950mV.

[0091] When the voltage was increased to 3580mV, the service remained stable; when the voltage was increased to 3585mV, the service was interrupted (abnormal), and the maximum input voltage was recorded as 3580mV.

[0092] Result: The voltage boundary for stable operation of the optical module under test is [2950mV, 3580mV].

[0093] Test range: [2950mV, 3580mV];

[0094] The initial voltage jump value ΔV1 = 10mV, with jump increments of 50mV (i.e., ΔV2 = 60mV, ΔV3 = 110mV, ΔV4 = 160mV). The second voltage stabilization time is 10s; however, the second voltage stabilization time can be set between 1s and 60s. The jump increment can be adjusted to any value within the range of 1mV to 200mV, and there is no upper limit to the number of increments, until the voltage jump amplitude exceeds the test range in different directions and at different voltage nodes, or an abnormal state occurs in the service status.

[0095] Testing process:

[0096] ΔV1=10mV: The service remains stable under any jump within the test interval (e.g., 2950mV→2960mV→3000mV→…);

[0097] ΔV2=60mV: Service stability during jump test;

[0098] ΔV3=110mV: Service stability during jump test;

[0099] ΔV4=160mV: Service interrupted, anomaly detected;

[0100] Result: Maximum withstandable voltage jump value ΔV max =110mV.

[0101] S4. The service stable voltage range of this 100GQSFP28 optical module is 2950mV-3580mV, and the maximum withstandable voltage jump value within this range is 110mV.

[0102] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for measuring the voltage performance of an optical module, characterized in that, Includes the following steps: S1. The test environment is built using an adjustable voltage power supply module, an optical module under test, and a service monitoring module. S2. Identify whether a preset voltage boundary exists. If yes, proceed to S3. Otherwise, set the voltage test range, initial voltage adjustment step size, and first voltage stabilization time of the adjustable power supply module. Within the voltage test range, gradually increase or decrease the input voltage of the adjustable power supply module according to the initial voltage adjustment step size, and keep the voltage of the first voltage stabilization time unchanged after each increase or decrease. Monitor the service status through the service monitoring module and determine the voltage boundary according to the service status. S3. Generate a test interval based on the voltage boundary, set the initial voltage jump value, jump amplitude increment and second voltage stabilization time of the adjustable voltage power supply module, perform multiple voltage jumps within the test interval based on the initial voltage jump value and jump amplitude increment, and keep the voltage unchanged for the second voltage stabilization time after each voltage jump, monitor the service status through the service monitoring module, and determine the maximum tolerable voltage jump value based on the service status. S4, output voltage boundary and maximum withstandable voltage jump value.

2. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, In step S2, the input voltage of the adjustable power supply module is gradually increased according to the initial voltage adjustment step size within the voltage test range; The specific steps for determining voltage boundaries based on operational status include: S211. If the service status changes from an abnormal state to a stable state, record the current voltage value as the minimum input voltage. S212. If the service status changes from a stable state to an abnormal state, record the voltage value of the previous voltage level as the maximum input voltage. S213. If the service state between the minimum input voltage and the maximum input voltage is a stable state, then the voltage boundary is generated based on the minimum input voltage and the maximum input voltage.

3. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, In step S2, the input voltage of the adjustable power supply module is gradually reduced within the voltage test range according to the initial voltage adjustment step size. The specific steps for determining voltage boundaries based on operational status include: S221. If the service status changes from an abnormal state to a stable state, record the current voltage value as the maximum input voltage. S222. If the service status changes from a stable state to an abnormal state, record the previous voltage value of the current voltage value as the minimum input voltage. S223. If the service state between the minimum input voltage and the maximum input voltage is a stable state, then the voltage boundary is generated based on the minimum input voltage and the maximum input voltage.

4. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, In step S3, multiple voltage jumps are performed within the test interval based on the initial voltage jump value and the jump amplitude increment, and the voltage remains unchanged for the second voltage stabilization time after each voltage jump. The specific steps for monitoring the service status through the service monitoring module and determining the maximum tolerable voltage jump value based on the service status include: S31. Within the test interval, multiple voltage jumps are performed based on the initial voltage jump value. The service monitoring module monitors the current voltage value and the current jump value. The adjustable voltage power supply module keeps the current voltage value unchanged after each voltage jump within the second voltage stabilization time. The service monitoring module monitors the service status. If the service status remains stable, the sum of the initial voltage jump value and the jump amplitude increment is calculated and overwritten to update the initial voltage jump value. S31 is then re-executed. If the business state switches to an abnormal state at least once, the initial voltage jump value is overwritten by the current jump value before the update and recorded as the maximum tolerable voltage jump value.

5. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, The business status includes abnormal status; The specific steps for monitoring the service status through the service monitoring module include: determining that the service status is in an abnormal state when the interruption duration is greater than or equal to 1ms or when a code error occurs.

6. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, The voltage transition modes include transitions from low voltage to high voltage or from high voltage to low voltage, and the transition start points cover all voltage nodes within the test interval.

7. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, In S2, the specific steps for determining the voltage boundary based on the service status include: if the service status of the first voltage test is a stable state, or the service status of the last voltage test is a stable state, then the corresponding voltage test range is expanded and the coverage is updated, and S2 is re-executed.

8. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, The service monitoring module is an optical communication analyzer. The service status includes abnormal status and stable status. The service parameters used to determine the abnormal status include at least one of transmission rate, signal interruption duration, and packet loss rate. The judgment criteria for the abnormal status are determined by a preset service abnormality judgment threshold.

9. The method for measuring the voltage performance of an optical module according to claim 1, characterized in that, The jump amplitude increment is greater than 0mV.

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