486 



BELL SYSTEM TECHNICAL JOURNAL 



rj-l ! ,-l-|-| \ = Delay Interral as Multiple cf Holding Time X_ 



7i :2~3 A .5 .7 r5~r9 n '^ 5 a .6 .7 .a .9 tf^i ri :* .6 .7 .a .9 



.5 1.0 1.5 2.0 2.5 3^ 



I 



