01050nam a2200205Ia 4500 CTU_108526 210402s9999 xx 000 0 und d 621.382 K19 Kartalopoulos, Stamatios V. Understanding SONET/SDH and ATM : Communications networks for the next millennium Stamatios V. Kartalopoulos New York IEEE Press 1999 Optical communications and fiber technology are fast becoming key solutions for the increasing bandwidth demands of the 21st century. This introductory text provides practicing engineers, managers, and students with a useful guide to the latest developments and future trends of three major technologies: SONET, SDH, and ATM, and a brief introduction to legacy TDM communications systems. Sonet (data transmission),Asynchronous transfer mode.,Synchronous digital hierarchy (data transmission) Năm Trung tâm Học liệu Trường Đại học Cần Thơ