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OLT Temperature Problem

Created: Jul 11, 2020 07:18:07Latest reply: Oct 30, 2021 13:05:36 992 7 0 0 0
  Rewarded HiCoins: 0 (problem resolved)

Hi there.


I have an EA5801 OLT. When i run the display temperature command it is showing the board temperature to be 67 degree celcius. I am using only a single pon port and have maximum 50 ont online. The room temperature is 27degree celcius here. All the Olt fans are working properly and there is no hinderance to airflow. Should i be concerned about this. Is my OLT faulty?


Thanks for your help!

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Chenxintao
Admin Created Jul 11, 2020 08:03:55

Hello, friend!


The board temperature is too high, which may damage the board. 


The board temperature is excessively high, Possible Cause 

1) The fan is blocked or faulty. 

2) The ambient temperature of the device is too high. 

3) The system temperature threshold is not properly set. 

4) The temperature sensor of the board is faulty. 


Handling Procedure 


1. Check whether the current ambient temperature of the board where the alarm is generated is too high according to the current temperature parameter among alarm parameters.

1) If the current ambient temperature of the board is too high, go to 3.

2) If the current ambient temperature of the board is proper, proceed to 2.


Note: 

Different boards have different heat-resistant capabilities and the same board has different heat-resistant capabilities in the case of different backplanes. Generally, keep the temperature of all boards lower than 80°C.


2. Run the display temperature threshold command to query the settings of the global temperature thresholds of the entire system.

1) If the global temperature thresholds of the entire system are not set or are set to proper values, proceed to 3.

2) If the settings of the global temperature thresholds are inappropriate, run the undo temperature threshold command to cancel the settings. Then, go to 5.


Note: 

Because different boards have different heat-resistant capabilities, it is not recommended that you set global temperature thresholds by running the temperature threshold command.

If the global temperature thresholds of the entire system are set, all boards adopt the thresholds as their temperature thresholds. If no such temperature thresholds are set, the boards adopt their individual thresholds.

Setting the temperature threshold of the entire system is supported, but setting the temperature threshold of an individual board is not supported.

By default, the high-temperature threshold of the entire system is 95°C.


3. Run the display alarm history alarmed 0x1541a024 command to query whether the 0x1541a024 The fan is blocked and therefore stops rotation alarm is generated.

1) If this alarm is generated, handle the alarm according to the alarm handling procedure described in 0x1541a024 The fan is blocked and therefore stops rotation, and then goes to 8.

2) If this alarm is not generated, proceed to 4.


4. Check whether the ambient temperature of the device is too high.

If the ambient temperature of the device is too high, adjust it, for example, set the temperature value of the air conditioner in the device environment to be lower, so as to enable the ambient temperature to be 20°C lower than the high-temperature threshold of the board. Then, go to 5.

If the ambient temperature of the device is proper, go to 7.


Note:

Ensure the following ambient temperature for the device so that the device can run stably:

Long-term operating environment: –5°C to +45°C 

Short-term operating environment: –25°C to +55°C 


5. Wait for five minutes and check whether the system generates the corresponding recovery alarm.

1) If the corresponding recovery alarm is generated, go to 8.

2) If the corresponding recovery alarm is not generated, proceed to 6.


6. Replace the board and check whether the system still generates the alarm.

1) If this alarm is generated, go to 7.

2) If this alarm is cleared, go to 8.


7. Contact Huawei for technical support.


8. End.


Thanks!


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simchamnan
simchamnan Created Jul 31, 2021 03:26:07 (0) (0)
 
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Hi,
We've noticed about your problem, and we're processing on it already.
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Hello, friend!


The board temperature is too high, which may damage the board. 


The board temperature is excessively high, Possible Cause 

1) The fan is blocked or faulty. 

2) The ambient temperature of the device is too high. 

3) The system temperature threshold is not properly set. 

4) The temperature sensor of the board is faulty. 


Handling Procedure 


1. Check whether the current ambient temperature of the board where the alarm is generated is too high according to the current temperature parameter among alarm parameters.

1) If the current ambient temperature of the board is too high, go to 3.

2) If the current ambient temperature of the board is proper, proceed to 2.


Note: 

Different boards have different heat-resistant capabilities and the same board has different heat-resistant capabilities in the case of different backplanes. Generally, keep the temperature of all boards lower than 80°C.


2. Run the display temperature threshold command to query the settings of the global temperature thresholds of the entire system.

1) If the global temperature thresholds of the entire system are not set or are set to proper values, proceed to 3.

2) If the settings of the global temperature thresholds are inappropriate, run the undo temperature threshold command to cancel the settings. Then, go to 5.


Note: 

Because different boards have different heat-resistant capabilities, it is not recommended that you set global temperature thresholds by running the temperature threshold command.

If the global temperature thresholds of the entire system are set, all boards adopt the thresholds as their temperature thresholds. If no such temperature thresholds are set, the boards adopt their individual thresholds.

Setting the temperature threshold of the entire system is supported, but setting the temperature threshold of an individual board is not supported.

By default, the high-temperature threshold of the entire system is 95°C.


3. Run the display alarm history alarmed 0x1541a024 command to query whether the 0x1541a024 The fan is blocked and therefore stops rotation alarm is generated.

1) If this alarm is generated, handle the alarm according to the alarm handling procedure described in 0x1541a024 The fan is blocked and therefore stops rotation, and then goes to 8.

2) If this alarm is not generated, proceed to 4.


4. Check whether the ambient temperature of the device is too high.

If the ambient temperature of the device is too high, adjust it, for example, set the temperature value of the air conditioner in the device environment to be lower, so as to enable the ambient temperature to be 20°C lower than the high-temperature threshold of the board. Then, go to 5.

If the ambient temperature of the device is proper, go to 7.


Note:

Ensure the following ambient temperature for the device so that the device can run stably:

Long-term operating environment: –5°C to +45°C 

Short-term operating environment: –25°C to +55°C 


5. Wait for five minutes and check whether the system generates the corresponding recovery alarm.

1) If the corresponding recovery alarm is generated, go to 8.

2) If the corresponding recovery alarm is not generated, proceed to 6.


6. Replace the board and check whether the system still generates the alarm.

1) If this alarm is generated, go to 7.

2) If this alarm is cleared, go to 8.


7. Contact Huawei for technical support.


8. End.


Thanks!


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simchamnan
simchamnan Created Jul 31, 2021 03:26:07 (0) (0)
 
goood
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Bem lembrado
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simchamnan
simchamnan Created Jul 31, 2021 03:26:14 (0) (0)
 
Good answer
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