N-GEN Communications Web-based Seminars ©NGCS

Seminar - An Overview of Communications Technologies

Module 5 - SONET, WDM, DWDM and B-ISDN Technologies                                                             Slide 30 of 76 _________________                                                                                  __________

                                            Who Developed SONET?

                                        ANSI                  IEEE

                                        EIA                    CCITT

                                        ECSA                  ITU-T

                                        Bell core

_________________                                                                                  __________

The above North American and European organizations participated in and oversaw the development of the SONET standards.

The Exchange Carriers Standards Association (ECSA) formulated SONET standards for the American National Standards Institute (ANSI). Bell core was set up by American telephone companies to do the Research and Development and develop network standards.

The CCITT incorporated the SONET standard into global standards through ITU-T