00631nam a22002057a 4500003000400000005001700004008004100021020001800062028000800080082001600088100001600104245005300120260004300173300003700216655006400253655004000317655003100357655002300388655001400411SNU20140807223704.0140807b        xxu||||| |||| 00| 0 eng d  a9780764548994  aHCL  a621.382 HOR  a Horak, Ray  aCommunications systems and networksc/ Ray Horak  aIndianapolis, INb : Wiley Pub.c2002.  axlii, 678 p. b: ill. c; 24 cm.  aFundamentals of the Technology: Concepts and Definitions --  aCommunications systems and networks  aTelecommunication systems.  aComputer networks.  aRay Horak