The MIB module defines SDH transmition part of an equipment This MIB use the logical model defined in ETSI ETS 300 304. ETS 300 304 (February 1997) defines the SDH information model for the Network Element. This MIB refers to SHELF-MIB for the definition of the Board that supports the interface. This MIB is refered by XCON-MIB that uses the definition of termination point to create cross connection. This MIB also define configuration of the different SDH blocs such as alarm monitoring and severity and give the current status of the termination point.