BS 6450-1:1993

Private branch exchanges for connection to public switched telephone networks run by certain public telecommunications operators-Specification for general requirements

BSI Group , 02/15/1993

$155.00 $309.88

Applies to dealer boards and automatic call distributors, but not for connection to shared service lines, 1+1 carrier systems or connection in parallel with other apparatus whose ringer equivalence number exceeds 0.3. This standard has been presented for designation under the Telecommunications Act 1984.Cross References:BS 4727:Part 1:Group 01BS 4727:Part 3:Group 01 BS 4727:Part 3:Group 02BS 6301BS 6305BS 6317BS 6328:Part 1BS 6450:Part 7BS 6701:Part 1BS 6701:Part 2CCITT Recommendation B.12 CEPT Recommendation T/SF23BT Specification S1541 BT Specification T4512BT Specification T4545BT Specification D2015BT Relay Sheet 11749BT Relay Sheet 11896BT Relay Sheet 18888BT Relay Sheet 19014 BT Relay Sheet 19/5