ETSI EN 300 417-4-2
ETSI EN 300 417-4-2
Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 4-2: Synchronous Digital Hierarchy (SDH) path layer functions; Implementation Conformance Statement (ICS) proforma specification Edition: 1.1.1European Telecommunications Standards Institute / 01-Jun-1999 / 308 pages