The optical module is a kind of sensitive optical device. When the operating temperature of the optical module is too high, it will cause problems such as too much emission power, wrong receiving signal, packet loss, and even directly burn out the optical module. Generally speaking, the optical module will pass the strict high and low temperature test before leaving the factory to ensure the quality of the optical module qualified. Under the condition of guaranteed quality, the temperature of the optical module will increase when it is used. What is the reason for this?
Is the optical module selected correctly?
According to the working temperature, the optical module can be divided into commercial and industrial, among which commercial optical module is the most widely used. But in fact, different application environments need to choose the corresponding temperature level of the optical module, otherwise it is easy to cause the temperature of the optical module is not normal, thus affecting the normal use. So，how to make the right choice between the common commercial and industrial optical modules?
Commercial grade optical module is suitable for indoor data center room：Because the interconnection within the data center requires a relatively small operating temperature range of the optical module (national policy requires the room temperature to be controlled at 22±2℃); Besides, the reliability of optical module is not high, so the commercial optical module can be selected in the room of indoor data center.
Industrial-grade optical modules are suitable for industrial Ethernet and 5G fronthaul：Industrial Ethernet has a large working temperature range and requires high safety and reliability. In order to ensure the normal operation of optical module, industrial optical module is the best choice. At the same time, in the white paper of 5G carrying optical module, it is mentioned that the 5G prequel AAU side optical module involves outdoor application, outdoor temperature is changeable, and the working environment is relatively harsh, so the industrial-grade optical module with better performance is needed.
HTF industrial-grade optical modules are manufactured in strict accordance with industrial standards, with large temperature differences, higher stability and lower power consumption, to meet the needs of industrial Ethernet network connection.
In addition, the selected optical module is not compatible with the device is one of the reasons. Before purchasing the optical module, I did not fully understand the information of the optical module supported on the equipment (such as switch, optical transceiver, etc.), such as the speed, model, etc.; Or use optical modules that are incompatible with the switch.
Is the environment heat dissipation condition of the optical module qualified：In addition to the above mentioned reasons for choosing the optical module, the unqualified heat dissipation conditions in the environment where the optical module is located will also have an impact on the module. Such as,
The machine room is not equipped with air-conditioning, temperature and humidity controller and other cooling devices：The use of air conditioning and temperature and humidity controller can effectively control the temperature of the equipment working environment in the machine room, so as to ensure that the actual application environment temperature of the optical module is controlled in the range.
The heat dissipation function of the device inserted by the optical module is poor：For example, the lack of airflow baffle or the open design of the front panel of the switch will affect the heat dissipation of the switch itself. If the heat dissipation performance of the switch is poor, the temperature of the equipment will be too high if the switch works for a long time, thus affecting the temperature of the optical module.
In addition to the above two reasons, the temperature rise of the optical module will also be affected by some improper daily operations. For example, if the end face of the optical module is polluted and not cleaned, the direct use of the optical module or the use of the optical module does not do electrostatic protection, etc., the failure of the optical module will lead to the temperature rise of the optical module.
HTF will be able to provide customized services for different application scenarios in the future, including the customization of optical module temperature. You can customize the optical module of commercial temperature range and industrial temperature range according to your needs. Moreover, the provided optical module can support the digital diagnosis function (DDM), effectively helping users to monitor the parameters of the optical module in real time, such as temperature, receiving power and transmitting power. If the optical module breaks down due to improper operation, please contact us in time, we will provide technical help to you within 24 hours.
