ÖNORM EN 301437 V 1.1.1

The present document specifies the technical characteristics (electrical and mechanical interface requirements and access control protocol) under Articles 5(d) and 5(f) of Directive 98/13/EC [12] to be provided by a single terminal equipment which is intended: a) for pan-European approval; b) for connection by 2-wires to an analogue interface of a PSTN. This interface is characterized by DC loop seizure and clearing, uses low frequency AC ringing signals below the speech pass-band 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 any voice telephony service. The objective of the present document is to ensure that no harm occurs to the public network, and to ensure interworking between the network and a single terminal so that calls can be routed successfully through the network. The present document applies to terminal equipment that is intended to originate and/or receive calls. Where it is intended to originate calls the present document specifies the requirements for DTMF signalling. If other signalling methods are provided, in addition to DTMF, these other signalling methods, if they are intended to be used in certain European countries, may be subject to additional national regulations. A test is given for each requirement in the present document including measurement methods. The terminal equipment may be stimulated to perform the tests by additional equipment if necessary. The present document specifies the connection arrangements (plug or socket, at the suppliers choice) to be provided by the terminal equipment. An adapter may be required between the terminal and the existing national network termination point in individual countries. Such an adapter is outside the scope of the present document. Where the origination or reception of calls by the terminal equipment is invoked, or otherwise (...abbreviated)