| BS 1050:1984 | Specification for indicator lamps for use in telecommunication apparatus and for allied purposes |
| BS 469:1960 | Specification for electric lamps for railway signalling |
| BS 4727-3:Group 16:1992* IEC 60050-714:1992 | Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. Terms particular to telecommunications and electronics. Switching and signalling in telecommunications |
| BS 6328-4:1985 | Apparatus for connection to private circuits run by certain public telecommunication operators. Specification for apparatus for connection to telegraph circuits using SCVF signalling |
| BS 6450-1:1993 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators. Specification for general requirements |
| BS 6450-2:1993 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators. Specification for private branch exchanges with terminating stations treated as an entirety |
| BS 6450-3.1:1993 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators. Direct dialling in on private branch exchanges. Specification for direct dialling in on private branch exchanges with terminating stations treated as an entirety |
| BS 6450-4:1993 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators. Specification for ports |
| BS 6450-5.1:1993 | Private branch exchanges for connection to the British Telecommunications public switched telephone network. Facilities on private branch exchanges. Specification for facilities on private branch exchanges with terminating stations treated as an entirety |
| BS 6450-6.1:1993 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators. Simple call-routeing mode (SCRM). Specification for the simple call-routeing mode of PBX operation, with terminating stations treated as an entirety |
| BS 6450-7:1990 | Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators. Specification for the procedure for in-service observation of PBXs undergoing type approval |
| BS 6701:Part 2:1987 | Code of practice for installation of apparatus intended for connection to certain telecommunication systems. Installation of switching apparatus that may be connected to certain analogue telecommunication systems |
| BS 7378-1:1997 | 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 |
| BS 7378-2:1991 | 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 for automatic-repeat call attempt facilities |
| BS 7378-3:1998 | 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 for apparatus for connection to Channel Associated Signalling Systems (CASS) |
| BS EN 50065-1:2001 | Specification for signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. General requirements, frequency bands and electromagnetic disturbances |
| BS EN 50065-2-1:2003 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in residential, commercial and light industrial environments |
| BS EN 50065-2-2:2003 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in industrial environments |
| BS EN 50065-2-3:2003 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 Khz. Immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors |
| BS EN 50065-4-1:2002 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. Low voltage decoupling filters. Generic specification |
| BS EN 50065-4-2:2002 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz and 1,6 MHz to 30 MHz. Low voltage decoupling filters. Safety requirements |
| BS EN 50065-4-3:2003 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. Low voltage decoupling filters. Incoming filter |
| BS EN 50065-4-4:2003 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. Low voltage decoupling filters. Impedance filter |
| BS EN 50065-4-5:2003 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. Low voltage decoupling filters. Segmentation filter |
| BS EN 50065-4-6:2004 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Low voltage decoupling filters. Phase coulper |
| BS EN 50065-4-7:2005 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz and 1,6 MHz to 30 MHz. Portable low voltage decoupling filters. Safety requirements |
| BS EN 50065-7:2001 | Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148.5 kHz. Equipment impedance |
| BS EN 61643-21:2001 | Low voltage surge protective devices. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods |
| BS EN 61643-311:2001 | Low voltage surge protective devices. Specification for gas discharge tubes (GDT) |
| BS IEC 61334-3-1:1998 | Distribution automation using distribution line carrier systems. Mains signalling requirements. Frequency bands and output levels |
| PD 6627:1999 | PNO-ISC information document number 007. UK interconnect use of SCCP |
| PD 6683:2001 | Specification Number DPNSS [188]. Digital Private Network Signalling System No 1 |
| PD 6684:2001 | Specification number DPNSS [189]. Interworking between DPNSS 1 and other signalling systems |
| PD 6685:2001 | Specification Number DPNSS [189-I]. Interworking between DPNSS 1 and ISDN Signalling Systems |
| PD 7004:1995 | Essential requirements for terminal equipment intended for connection to digital interfaces of the PSTN using Digital Access Signalling System No.2 (DASS 2) |
