The Economic Operator Registration and Identification (EORI) number is a unique identifier, assigned by a customs authority in an EU country to all economic operators (both companies and individ.
The standard specifies the geometrical, mechanical, and transmission attributes of a single-mode optical fibre as well as its cable. The fibre has zero-dispersion wavelength around 1310 nm as per how it was designed, however it can also be used in the 1550 nm wavelength region.