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 General requirements
€316.00
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 Specification automatic-repeat call attempt facilities
€165.00
Code of practice for installation of private branch exchanges for connection to the British Telecommunications public switched telephone network
€269.00
Code of practice for the selection and accommodation of telephone, telegraph and data communication installations
Code of practice for installation apparatus intended connection to certain telecommunication systems Installation switching that may be connected analogue
Apparatus for connection to private circuits run by certain public telecommunication operators. Specification apparatus forconnection digital with interfaces according CCITT G-series. Recommendations G.703 64 kbit/s service using codirectional option
€193.00
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 Immunity requirements for mains communicating equipment operating of frequencies 95 and intended use by electricity suppliers distributors
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 General requirements, bands and electromagnetic disturbances
Low voltage surge protective devices Surge connected to telecommunications and signalling networks. Requirements test methods
€404.00
Low voltage surge protective devices Specification for gas discharge tubes (GDT)
Specification for electric lamps for railway signalling
Private branch exchanges for connection to public switched telephone networks run by certain telecommunication operators. Direct dialling in on private Specification direct with terminating stations treated as an entirety
Private branch exchanges for connection to public switched telephone networks run by certain telecommunications operators Specification general requirements
Private branch exchanges for connection to the British Telecommunications public switched telephone network. Facilities on private Specification facilities with terminating stations treated as an entirety
Private branch exchanges for connection to public switched telephone networks run by certain telecommunications operators Specification private with terminating stations treated as an entirety
