Equipment engineering (EE) - European telecommunication standard for equipment practice - Part 3: Engineering requirements for miscellaneous racks and cabinets; English version ETS 300119-3:1994
€56.17
Private Telecommunication Network (PTN) - Inter-exchange signalling protocol - Circuit mode basic services; English version ETS 300172:1994
€190.65
Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN) - Part 1: V5.1 interface specification; English version ETS 300324-1:1994
€229.44
Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN) - Part 2: Protocol Implementation Conformance Statement (PICS) proforma; English version ETS 300324-2:1994
€84.58
PNO-ISC information document number 007. UK interconnect use of SCCP
€329.00
Low voltage surge protective devices Specification for gas discharge tubes (GDT)
€281.00
Specification Number DPNSS [188]. Digital Private Network Signalling System No 1
€421.00
Specification number DPNSS [189]. Interworking between DPNSS 1 and other signalling systems
Specification Number DPNSS [189-I]. Interworking between DPNSS 1 and ISDN Signalling Systems
Specification for visual indicator lamps for use in telephone and telegraph switchboards and for allied purposes
This product is not for sale, please contact us for more information
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 General requirements, bands and electromagnetic disturbances
Specification for electric lamps for railway signalling
Visual indicator lamps