Contents1 About this guide............................................................................................................................................. 5Regulatory...........................................................................................................................................................................5Related documents............................................................................................................................................................ 5Information Symbols.......................................................................................................................................................... 62 S4200-ON series switch................................................................................................................................ 7Introduction......................................................................................................................................................................... 7Features...............................................................................................................................................................................8Physical dimensions........................................................................................................................................................... 8LED display..........................................................................................................................................................................8LED behavior................................................................................................................................................................ 9Prerequisites.......................................................................................................................................................................11S4200-ON configurations................................................................................................................................................ 11Luggage tag....................................................................................................................................................................... 113 Site preparations.......................................................................................................................................... 13Site selection..................................................................................................................................................................... 13Cabinet placement............................................................................................................................................................13Rack mounting.................................................................................................................................................................. 14Switch ground................................................................................................................................................................... 14Fans and airflow................................................................................................................................................................14Fan combinations........................................................................................................................................................14Power................................................................................................................................................................................. 14Component storage..........................................................................................................................................................154 NEBS compliance.........................................................................................................................................16Important information...................................................................................................................................................... 16NEBS-compliant ground installation...............................................................................................................................165 S4200-ON Series installation....................................................................................................................... 19Unpack the switch............................................................................................................................................................19Unpack......................................................................................................................................................................... 19Rack or cabinet installation............................................................................................................................................. 20Rack mount safety considerations...........................................................................................................................20ReadyRails Installation..................................................................................................................................................... 20Tool-less non-threaded mount installation...............................................................................................................21Two-post flush-mount installation........................................................................................................................... 22Two-post center-mount installation.........................................................................................................................23Four-post threaded installation................................................................................................................................ 24S4200-ON Series switch installation.............................................................................................................................251U front-rack installation........................................................................................................................................... 25Ground cable.....................................................................................................................................................................27Contents 3