DDM information: Digital diagnostic function, which is equivalent to a case manual, can identify abnormal phenomena of the optical module and the abnormal areas, and can more accurately locate the source of the abnormality. It can diagnose the working status of the optical module and also monitor in real time whether the internal parameters of the optical module are normal. By comprehensively analyzing the alarm information of the transmitted and received optical power, voltage and bias current detected, faults can be predicted, the location of faults can be located, the fault repair time can be shortened and losses can be reduced. It can also display the regular wavelength, rate, transmission distance, manufacturer name, exit number, model, serial number, exit date, alarm information, etc. of the module. Among the common optical modules nowadays, only the electrical port module lacks DDM information.
The commands for the switch to view DDM information vary, and you can operate according to the specific model you are using.
The transmission optical power of a general SFP optical module is -3.55 dBm, which is within the warning range of 1 dBm to -13.5 dBm. The data is normal. This value may have different range requirements for different manufacturers. Referring to industry standards, optical modules strictly divide the optical power range into zones based on kilometers. For example: 10KM to 20KM, the industry standard is between -2 DBM and -10 DBM. Our company has always strictly controlled the quality of the products shipped in accordance with this standard.
The above is the knowledge explanation of “Optical Modules Read DDM Information through Switches” brought by Shenzhen HDV Phoelectronic Technology Co., LTD. The company’s module products cover optical fiber modules, Ethernet modules, optical fiber transceiver modules, optical fiber access modules, SSFP optical modules, SFP optical fiber modules, etc. All the above-mentioned modular products can provide support for different network scenarios. For the above-mentioned products, a professional and powerful R&D team has been paired to provide technical support for customers. Moreover, a considerate and professional business team can offer high-quality services for customers’ initial consultation and subsequent work.