00526nam a22001217a 4500020002100000082001800021100002100039245008200060260002600142300003300168500002100201650018200222  a0471150320 (pbk)  a621.382bNEL   aNellist, John G.  aUnderstanding telecommunications and lightwave systems ban entry-Level guide  aUSAbIEEE Pressc2002  axi, 269 p.b: ill.c; 23 cm.  aIncludes index.   aOptical communication aFiber optic vWireless communications vAnalog transmission vDigital transmission vSwitching hierachy vTraffic considerations vCommunications vFEAS