Specifies requirements for private branch exchanges to be connected at the users' premises directly to the analogue interfaces of the BT PSTN when the terminating stations and their cabling can be treated with the PBX as an entirety. Applies only to a PBX intended to be installed on a single set of premises.
BS 6450-2:1983 History
BS 6450-2:1983
$95.00 $190.00
BS 6450-2:1993
$132.00 $264.00
More Standards PDF
BS 7870-3.40:2023
$95.00 $191.00
BS 7671:2018+A2:2022/COR3
$21.00 $43.00
BS 7273-4:2015+A2:2023
$184.00 $368.00
BS PD CEN/TR 13387-5:2023
$95.00 $191.00






