scope:

Defines the requirements for the design and configuration of customer premises cabling for the connection os basic access ISDN equipment. It defines - design requirements for ISDN basic access with point-to-point and point-to-multipoint cabling configurations; - minimum cabling requirements for the installation of new cabling; - criteria for the use of existing cabling. The standard applies to the customer premises cablin. It describes the cabling requirements, needed to transmit ISDN basic access signals as defined by ITU-T I.430. The requirements placed on the customer premises cabling are solely those necessary to enable terminal equipment conforming to ETS 300012 to operate into the Network Termination (NT) via configurations defined in this standard.