Power supplies ······················································································································································· 80
Fan failure ······································································································································································· 82
MPU failure ····································································································································································· 82
LPU failure ······································································································································································· 83
Switching fabric module failure ···································································································································· 83
Interface failure ······························································································································································· 84
Replacement procedures ··········································································································································· 85
Cleaning the air filters ··················································································································································· 85
Cleaning the chassis air filters for a 12508 ······································································································ 85
Cleaning a power frame air filter ························································································································ 86
Replacing a power supply ············································································································································ 88
Preparing for the replacement ····························································································································· 88
Replacing a power supply ···································································································································· 88
Replacing a card ···························································································································································· 90
Preparing for the replacement ····························································································································· 90
Replacement procedure ········································································································································ 91
Replacing a fan tray ······················································································································································ 93
Preparing for the replacement ····························································································································· 93
Replacement procedure ········································································································································ 93
Replacing a CF card ······················································································································································ 94
Replacing a transceiver module ··································································································································· 96
Environment requirements ············································································································································· 98
Power consumption/weight/dimensions ····················································································································· 98
Switches ·································································································································································· 98
Cards ···································································································································································· 100
Fan trays ······························································································································································· 101
Power components ·············································································································································· 101
Switch ordering guide ················································································································································· 102
MPUs ····································································································································································· 104
Switching fabric modules ··································································································································· 104
OAA cards ··························································································································································· 105
Power components ······················································································································································· 106
Appendix B LEDs ····················································································································································· 111
Power system LEDs ······················································································································································· 111
Monitoring module LEDs ····································································································································· 111
Power supply LEDs ·············································································································································· 111
Fan LEDs ········································································································································································ 112
MPU LEDs ······································································································································································ 112
CF card status LED ··············································································································································· 113
Network management port LEDs ······················································································································· 113
Switching fabric module LED ····························································································································· 113
LPU status LED ······················································································································································ 113
Fan status LED ······················································································································································ 114
Power status LED ·················································································································································· 114
MPU LEDs ····························································································································································· 114
LPU LEDs ········································································································································································ 114
Interface LEDs ······················································································································································· 115
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