Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) Network protection schemes - Automatic Protection Switch; APS protocols and operation; English version ETS 300746:1997
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
Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-1: Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions
Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-2: Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions - Implementation Conformance Statement (ICS) proforma specification
Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 5-2: Plesiochronous Digital Hierarchy (PDH) path layer functions - Implementation Conformance Statement (ICS) proforma specification