> Jim you are not quite right. > There is a lot of protection and separation that are defined in NEBs and > NEDS standards. > Those are incorporated into the equipment that is installed in a central > office.
Very true, but Central Office equipment needs no regulatory approval in North America and UL1950/CSA950/IEC60950 do not apply, except where the customer asks for it. Many Operating Companies accept compliance with the Bellcore requirements. Some now start insisting on certification by a NRTL, if: (a) The service provider is not a public utility (many resellers and LD providers are not) (b) The equipment is not deployed on the contiguous property of a public utility.) Ciao, Vic
