RGD means rugged optical modules, so the optical module with RGD function is an enhanced module. This optical module is more durable and can be used in very harsh conditions. The DDM interface is. DDM means Digital Diagnostic Monitoring. Including modules' working temperature, working voltage, working current, TX and RX Power etc, can also show the factory information of the. When purchase SFP in the first time, we usually meet DDM DOM RGD. But what is it for DDM”, “DOM” or “RGD”? Today I will introduce what' the different for those three functions. However, because they are very similar, many IT managers need clarification about the specifications and. DDM, namely Digital Diagnostics Monitoring, is a technology used in SFP transceivers in order to give the end user the ability to monitor real-time parameters of the SFPs.
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