Deals with the installation of PBXs for direct or indirect connection at the users’ premises to analogue interfaces of the BTs PSTN. Also gives information and recommendations for accommodation and cabling and wiring for the PBX.
BS 6506:1984
Original price was: $264.16.$132.00Current price is: $132.00.
Code of practice for installation of private branch exchanges for connection to the British Telecommunications public switched telephone network
BSI Group , 01/31/1985
