BS 6450-5-5.1:1984 PDF

Published Date: 02/15/1993

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

Published Date: 09/30/1988

Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators.Facilities on private branch exchanges-Specification for facilities on private branch exchanges with terminating stations treated as an entirety

Published Date: 11/30/1984

Specification for indicator lamps for use in telecommunication apparatus and for allied purposes

Published Date: 10/15/1992

Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms. Terms particular to telecommunications and electronics-Switching and signalling in telecommunications

Published Date: 04/11/2023

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz-Low voltage decoupling filter. Incoming filter

Published Date: 01/01/2003

Certified Ratings Program Acoustical Duct Silencers

Published Date: 2013

Certified Ratings Program Operating Manual

Published Date: 2011

Certified Ratings Program Operating Manual

Published Date: 2023

Certified Ratings Program Operating Manual

Published Date: 2013

Laboratory Accreditation Program

Published Date: 2002

Fans and Systems