BC-T-333 -

This EN (harmonised standard) specifies the technical characteristics (electrical and mechanical interface requirements and access protocol) under Articles 4(d) and 4(f) of Directive 91/263/EEC to be provided by a single terminal equipment which is intended (a) for pan-European approval and (b) for connection by two wires to an analogue interface of the PSTN.   This interface is characterized by d.c. loop seizure and clearing, uses low frequency a.c. ringing below the speech passband to indicate an incoming call and in the transmission phase has an approximate bandwidth of 3kHz at the network termination point,  and (c) for supporting any telephony service.

This TBR specifies the technical characteristics (electrical and acoustic requirements) under Article 4(g) of Directive 91/263/EEC to be provided by a single, handset telephony, terminal equipment which is intended: (a) for pan-European approval; and (b) for connection by 2-wires to an analogue interface of a PSTN. This interface is characterised by a d.c. loop to indicate seizure and clearing, low frequency a.c.ringing signals below the speech passband to indicate an incoming call and in the transmission phase has an approximate bandwidth of 3 kHz at the network termination point; and (c) for supporting the voice telephony justified case service. Work Item supported by Nortel, BT, Siemens, CSELT, BAKOM/OFCOM, GPT

DEN/ATA-005070

DTBR/ATA-004050