Alarm systems - Alarm transmission systems and equipment - Part 2-3: Requirements for equipment used in systems with digital communicators using the public switched telephone network
€54.00
Alarm systems - Alarm transmission systems and equipment - Part 2-4: Requirements for equipment used in systems with voice communicators using the public switched telephone network
Private Integrated Services Network (PISN) - Inter-exchange signalling protocol, Circuit mode basic services, Network Layer (NL) - Part 1: Test Suite Structure and Test Purposes (TSS&TP); English version ETS 300805-1:1998
€173.74
Private Integrated Services Network (PISN) - Inter-exchange signalling protocol, Circuit mode basic services, Network Layer (NL) - Part 2: Abstract Test Suite (ATS) specification; English version ETS 300805-2:1998
€128.22
Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 5-1: Plesiosynchronous Digital Hierarchy (PDH) path layer functions; English version ETS 300417-5-1:1998
€214.30
Business TeleCommunications (BTC) - Multiple 64 kbit/s digital unrestricted leased lines with octet integrity presented at a structured 2048 kbit/s interface at either or both ends (D64M) - Connection characteristics and network interface presentation; English version ETS 300766:1998
€63.27
BUSINESS TELECOMMUNICATIONS (BTC). 34 MBIT/S DIGITAL UNSTRUCTURED AND STRUCTURED LEASED LINES. (D34U AND D34S). ATTACHMENT REQUIREMENTS FOR TERMINAL EQUIPMENT INTERFACE.
€74.00
BUSINESS TELECOMMUNICATIONS (BTC); 140 MBIT/S DIGITAL UNSTRUCTURED AND STRUCTURED LEASED LINES (D140U AND D140S). ATTACHMENT REQUIREMENTS FOr terminal equipment interface.
€76.00
Apparatus for connection to public telecommunications systems using the Digital Access Signalling System No. 2 (DASS 2) via a 2048 kbit/s CCITT Recommendation G.703 interface Requirements apparatus Channel Associated Systems (CASS)
€193.00
ALARM SYSTEMS. ALARM TRANSMISSION SYSTEMS AND EQUIPMENT. PART 1-3: REQUIREMENTS FOR SYSTEMS WITH DIGITAL COMMUNICATORS USING THE PUBLIC SWITCHED TELEPHONE NETWORK.
€41.00
ALARM SYSTEMS. ALARM TRANSMISSION SYSTEMS AND EQUIPMENT. PART 1-4: REQUIREMENTS FOR SYSTEMS WITH VOICE COMMUNICATORS USING THE PUBLIC SWITCHED TELEPHONE NETWORK.
€36.00
Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Common information additional network feature
Private Integrated Services Network (PISN) - Specification, functional models and information flows - Control aspects of circuit mode basic services [ISO/IEC 11574 (1994) modified]; English Version EN 300171 V 1.2.1 (1997.09)
€41.78
Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Circuit mode basic services [ISO/IEC 11572 (1996) modified]; English version EN 300172 V 1.4.1 (1997.09)
Distribution automation using distribution line carrier systems - Part 3: Mains signalling requirements; Section 22: MV phase-to-earth and screen-to-earth coupling devices (IEC 57/365/CD:1998)
