Business TeleCommunications (BTC) - 34 Mbit/s digital leased lines (D34U and D34S) - terminal equipment interface; English version ETS 300689:1996
€84.58
Business TeleCommunications (BTC) - 140 Mbit/s digital leased lines (D140U and D140S) - Terminal equipment interface; English version ETS 300690:1996
Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 1: On hook data transmission; English version ETS 300659-1:1997
Transmission and Multiplexing (TM) - Synchronous Digital Hierarchy (SDH) - Multiplexing structure; English version ETS 300147:1997
€56.17
Transmission and Multiplexing (TM) - Generic requirements for transport functionality of equipment - Part 2-1: Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) physical section layer functions; English version ETS 300417-2-1:1997
€179.53
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; English version ETS 300417-3-1:1997
€195.79
Transmission and Multiplexing (TM) - Generic requirements for synchronization networks - Part 1: Definitions and terminology for synchronization networks; English version ETS 300462-1:1997
€77.20
Distribution automation using distribution line carrier systems - Part 6: A-XDR-encoding rule (IEC 57/330/CD:1997)
€41.78
Distribution automation using distribution line carrier systems - Part 4: Data communication protocols; Section 511: System management using profile 61334-5-1, CIASE protocol (IEC 57/332/CD:1997)
Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange (LE), V5.2 interface for the support of Access Network (AN) - Part 1: V5.2 interface specification; English version ETS 300347-1/A1:1997
Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange (LE), V5.2 interface for the support of Access Network (AN) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma; English version ETS 300347-2/A1:1997
€34.30
Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 4-1: Synchronous Digital Hierarchy (SDH) path layer functions; English version ETS 300417-4-1:1997
€261.78
Universal Personal Telecommunication (UPT) - UPT Phase 2 - Functional specification of the interface of a UPT Integrated Circuit Card (ICC) and Card Accepting Devices (CADs); UPT card accepting Dual Tone Multiple Frequency (DTMF) device; English version ETS 300477:1996
€173.74
Public Switched Telephone Network (PSTN) - Protocol over the local loop for display and related services - Terminal Equipment requirements - Part 1: Off-line data transmission; English version ETS 300778-1:1997
€105.42
Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 2: Off-hook data transmission; English version ETS 300659-2:1997
