Share this content on Facebook!
05 Mar 2016

DDM which stands for digital diagnostics monitoring is specified by the industry-standard SFF-8472. Modern optical SFP transceivers can support standard digital diagnostics monitoring (DDM) functions.which is also known as digital optical monitoring (DOM). What makes these transceivers with DDM/DOM function different from the traditional modules? This article will give you the answer.

What is Digital Diagnostic Monitoring (DDM)?

Very often, we can see GLC-LH-SMD, or on the label of modern transceivers. Actually, the ā€œDā€ in GLC-LH-SMD represents the DDM function we are talking about today. When choosing fiber optical transceivers in the market, you may have the option with or without DDM/DOM. At present, most of high-end switches...



30 Dec 2015

When setting up your network, the SFP transceivers you use have great effect on the performance of your system. These SFP transceivers are compatible with multiple devices, but the compatibility of them depends on various factors. Two main factors that should be considered when selecting SFP modules are DDM functionality requirements and checking the ID code and lock out third party components. Here are some details about the factors you should know about SFP transceivers.

Does SFP Require DDM Function?

An SFP does not necessarily require the DDM functionality, but your application should be compatible with digital diagnostic functionality if it is present. Most designers forget to verify the compatibility before design then face...