Marconi/Nokia T30420.03 Nokia Synfonet / Marconi SDH transmission Optical Transmission Module

Marconi/Nokia T30420.03 turns up in third party inventory listings under this exact code, which confirms it is a real Synfonet part rather than a transcription error, but none of those listings carries a description and neither does ours. The honest position is that we know the manufacturer, the platform family and that the item is in our optical transmission stock, and we do not know what the unit does. We will check the physical item on request.

The Synfonet range covers SDH add and drop multiplexing and small cross connection at STM-1, STM-4 and STM-16, and it survives today mostly on private networks in transport, utility and public sector use. Nokia developed it, Marconi acquired it in 1999, and neither company supports it now, so every remaining site depends on the secondary market for plug-in units, subracks, power assemblies and fan parts. The suffix after the decimal point identifies the build variant and is not always interchangeable within one base number.

Give us the system details or a picture of the part label and we will physically check the match before despatch. Tech-Star is UK-based and ships worldwide. Please contact our sales team for current availability and pricing.