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Replacing a transceiver module ··································································································································· 87
Replacing the XFP, SFP+, SFP, and QSFP+ modules ························································································· 87
Replacing the CFP transceiver module ················································································································ 88
Replacing the SFP+ cable and QSFP+ cable ····································································································· 89
Appendix A Chassis views and technical specifications ························································································ 91
Chassis views ································································································································································· 91
S12504 ·································································································································································· 91
S12508 ·································································································································································· 93
S12518 ·································································································································································· 95
Technical specifications ················································································································································· 97
Chassis ··································································································································································· 97
Cards ······································································································································································ 98
Fan trays ········································································································································································ 107
Power supply system ···················································································································································· 107
S12504 AC power supply ································································································································· 107
S12504 DC power supply ································································································································· 109
S12508/S12518 AC power supply ················································································································ 111
S12508/S12518 DC power supply ················································································································ 111
Power component specifications························································································································ 112
Power cords ························································································································································· 114
Appendix B LEDs ····················································································································································· 117
Power system LEDs ······················································································································································· 117
Power monitoring module LEDs ························································································································· 117
Power module LEDs ············································································································································· 118
Fan tray LEDs ································································································································································ 118
MPU LEDs ······································································································································································ 119
CF card status LED ··············································································································································· 119
Network management port LEDs ······················································································································· 120
Switching fabric module LED ····························································································································· 120
LPU status LED ······················································································································································ 120
Fan status LED ······················································································································································ 121
Power status LED ·················································································································································· 121
MPU LEDs ····························································································································································· 121
LPU LEDs ········································································································································································ 121
Interface LEDs ······················································································································································· 121
RUN LED ······························································································································································· 123
Switching fabric module LEDs ····································································································································· 123
Appendix C Transceiver modules ·························································································································· 125
100-GE CFP transceiver modules ······························································································································· 125
40-GE QSFP+ transceiver modules ···························································································································· 126
40-GE QSFP+ cables ··················································································································································· 126
10-GE XFP transceiver modules ·································································································································· 127
10-GE SFP+ transceiver modules ······························································································································· 129
10-GE SFP+ cables ······················································································································································ 130
FE/GE SFP transceiver modules ································································································································· 130
Appendix D Lightning protection ··························································································································· 133
Connecting the AC power supply to a power strip with lightning protection ······················································· 133
Installing a lightning protector for a network port ···································································································· 134
Appendix E Engineering labels ······························································································································ 136
Labels for cables··························································································································································· 136
Labels for signal cables ······································································································································ 136
Labels for power cords ······································································································································· 136
