DIN ETS 300461-1 : 1997 Title: Transmission and Multiplexing (TM) - Flexible Multiplexer Equipment - Part 1: Core functions, 2048 kbit/s aggregate interface functions, tributary interface functions and special functions; English version ETS 300461-1:1996 Year: 1997 Publisher: DIN Media GmbH Availability: Within 1-2 working days