What is DDM in Transceivers?
DDM stands for Digital Diagnostic Monitoring according to the industry standard MSA (Multi-Source Agreement). DDM is also commonly known as DOM which stands for Digital Optical Monitoring. When purchasing a transceiver today you are given the option with or without DDM/DOM. Most of the transceivers in use today feature the DDM function. DDM is a technology that allows users to monitor parameters of the fiber optic transceivers in real time.
What does DDM do?
DDM enables the users to monitor key parameters that can affect the performance of a fiber optic transceiver such as:
Transceiver temperature
Transceiver supply voltage
Laser bias current
Transmit average optical power
Received optical modulation amplitude (OMA) or Average Optical Power
The real time monitoring of these parameters can alert the system when a transceiver is functioning abnormally or when specified operating limits are exceeded. The DDM function can be used to isolate the particular location of a fault within a fiber optic network system as well. In addition to isolating faults, the DDM can also aid in predicting failures on fiber optic links based on the transceiver performance. The DDM function allows users to be more proactive when maintaining their network and also helps to ensure minimal disruption. DDM allows network managers to find potential failures before system performance is affected. DDM's failure notice system also allows network managers to switch to a backup link or replace a device functioning abnormally. DDM also serves to verify the module's compatibility.
If you have any questions about DDM in our products, please contact us at info@vitextech.com
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What is DDM in Transceivers?
