iiHardware management and maintenance ··········································· 32Displaying detailed information about the device ············································································· 32Displaying the software and hardware version information for the device ············································· 32Displaying the electrical label information for the device ··································································· 33Displaying the CPU usage of the device ······················································································· 33Displaying the memory usage of the device ··················································································· 34Displaying the CF card information ······························································································ 34Displaying the operational status of fans ······················································································· 35Displaying the operational status of power modules········································································· 35Displaying the temperature information of the device ······································································· 36Displaying the operational statistics of the device ············································································ 36Displaying transceiver module information ····················································································· 37Rebooting the device ················································································································ 37Troubleshooting ············································································· 39Power module failure ················································································································ 39Fan tray failure ························································································································ 39Configuration terminal display issue ····························································································· 39Password loss ························································································································· 40High operating temperature ········································································································ 40Software loading failure ············································································································· 40Appendix A Chassis views and technical specifications ·························· 41Chassis views ························································································································· 41Front view ························································································································ 41Rear view ························································································································ 42Technical specifications············································································································· 42Dimensions and weights ····································································································· 42Storage media ·················································································································· 42Power consumption ··········································································································· 43Appendix B FRUs ··········································································· 44Interface module ······················································································································ 44Power module ························································································································· 44AC power module ·············································································································· 44DC power module·············································································································· 45Fan tray ································································································································· 46Appendix C Ports ··········································································· 47Console port ··························································································································· 47GE copper Ethernet port ············································································································ 47GE fiber Ethernet port ··············································································································· 4810GE fiber Ethernet port ············································································································ 48Appendix D LEDs ··········································································· 50Device LEDs ··························································································································· 50Interface module LEDs ·············································································································· 50Appendix E Cables ········································································· 52Console cable ························································································································· 52Ethernet twisted pair cable ········································································································· 52Introduction ······················································································································ 52Making an Ethernet twisted pair cable ···················································································· 55Optical fiber ···························································································································· 56