1、9- I 232b434 O006007 T W Page 1 T?L03-09 E Recommendation T/L 03-09 (Edinburgh 1988) DIGITAL HIERARCHY BIT RATES Recommendation proposed by Working Group T/WG 12 ?Transmission and Multiplexing? (TM) Text of the Recommendation adopted by the ?Telecommunications? Commission: ?The European Conference o
2、f Posts and Telecommunications Administrations, considering - that the interconnection of digital networks requires the denition of a limited number of digital interfaces, - that definition of digital interfaces impacts on the design and operation of digital equipment, - that the relevant CCITT exis
3、ting Recommendations contain various options and differences which are necessary on a worldwide basis, - that CEPT Administrations support the harmonization of telecommunication equipment and systems which could lead to a reduction in the development and production costs for the manufacturers supply
4、ing equipment to several countries, O recommends that member Administrations adhere to the specifications contained in this Recommendation.? Recommendation T/L 03-09 corresponds to the following CCITT Recommendation: Recommendation G.702: ?Digital hierarchy bit rates? with the following modifications: 1. delete the entry in the table under the heading ?1,544 kbitls?; 2. delete Figure 1/G.702; 3. delete Q Al of the Annex; 4. delete references to Recommendations G.745, G.753, G.754 in Figure 2/G.702. Edition of January 30, 1989 - . f 7
