The ComSoc Guide to Next Generation Optical Transport, SDH/SONET/OTN, Wiley, Huub van Helvoort,Communications engineering / telecommunications,Electronics and communications engineering, SONET; synchronous digital hierarchy; SDH; Introduction to SDH; ComSoc Pocket Guide; optical media; SDH/SONET; next generation SONET,, The ComSoc Guides to Communications Technologies, United States, en-UShttps://www.wiley.comSONET; synchronous digital hierarchy; SDH; Introduction to SDH; ComSoc Pocket Guide; optical media; SDH/SONET; next generation SONET, [BLURB],[CITY],,books, ebooks, biblet, Book2look