00981nac a22002291u 4500 3778525271 3778526995 : 621.3815 K471 4275 4275 kiefer, roland Test solutions for digital networks : basic principles and measurement techniques for PDH, SDH, ISDN and ATM/ roland kiefer Heidelberg : Hu& 776;thig, 1998 1998 xii, 282 p. : ill. ; 24 cm Includes index wide area networks Integrated services digital networks Asynchoronous transfer mode synchronous digital hierarchy BB 621.3815K471 4275 4275 0 0 0 0 MAIN MAIN 1ST 2007-09-19 Purchase 0 621.3815 KIE 000000154 2025-07-15 00:00:00 BB 0 0 0 0 MAIN MAIN 1ST 2007-09-19 Purchase 0 621.3815 KIE 000005829 2025-07-15 00:00:00 BB