BS 6789-6.2:1989
Apparatus with one or more particular functions for connection to certain public switched telephone networks - Specification for series connected apparatus - Apparatus having less than maximum allowable impairments

Standard No.

BS 6789-6.2:1989

Release Date

1989

Published By

British Standards Institution (BSI)

Status

Withdraw

Latest

BS 6789-6.2:1989

Scope

Requirements for apparatus for connection, in series with a subscriber's main apparatus such as a telephone instrument or a data modem, to the Public Switched Telephone Networks (PSTN) either directly or when the series apparatus forms part of a Relevant Branch System for PSTN. To be read in conjunction with BS 6789-1:1984, BS 6789-6.1:1986

BS 6789-6.2:1989 history

• 1989 BS 6789-6.2:1989 Apparatus with one or more particular functions for connection to certain public switched telephone networks - Specification for series connected apparatus - Apparatus having less than maximum allowable impairments