84 degré?

? celcius?
As a general guideline, SFP modules are often designed to operate within a temperature range of 0°C to 70°C (32°F to 158°F). However, this can vary, and some modules may have extended temperature ranges for specific applications, such as industrial or outdoor environments.
It's crucial to check the datasheet or documentation for the specific SFP module you are using to determine its maximum operating temperature and ensure that it meets the requirements of your intended deployment environment. Operating the transceiver within the specified temperature range is essential for optimal performance and longevity. Exceeding the recommended temperature limits may lead to degraded performance or even permanent damage to the SFP module.
heu non le double de 40 on est au dela...