Automatic primary communication net on telecommunication equipment NGPDH NGSDH technology.
The article presents description of an automatic basic communications network with the main line throughput up to 2.5 Gbit/s which is designed for constructing high-dynamic automatic communication systems for headquarters and strategic control units. The article is developing problems stated in issues 1-2, 5-6, 9-10 2012 and 1-2 2013.