13Chapter 1 IntroductionChapter contentsModel 3092 iDSL DACS overview .......................................................................................................................14Hardware overview ................................................................................................................................................15WAN ..............................................................................................................................................................15LAN ...............................................................................................................................................................16RS-232 control port ........................................................................................................................................16Power system ..................................................................................................................................................16Central processing unit ...................................................................................................................................16iDSL Ports ......................................................................................................................................................16Alarm Port ......................................................................................................................................................16System Timing and Clock Port .......................................................................................................................17Temperature ...................................................................................................................................................17Altitude ...........................................................................................................................................................17Humidity ........................................................................................................................................................17Physical dimensions ........................................................................................................................................18Management services ......................................................................................................................................18LED display ....................................................................................................................................................19Approvals ..............................................................................................................................................................20