A FUNCTIONAL DESCRIPTION OF SDH TRANSMISSION EQUIPMENT

For some time, functional decomposition techniques have been applied t o describe the architecture of telecommunications transport networks. A group within the transmission and multiplexing (TM) sector of the Eu ropean Telecommunications Standards Institute (ETSI) has now applied t he technique to provide a rigorous means of describing telecommunicati ons transmission equipment. This paper describes rite application of t he technique to equipment conforming to the ITU-T Recommendations for a synchronous digital hierarchy (SDH), and describes the benefits of t he technique to both equipment manufacturers and network operators.