ii
Fan tray failure ························································································································ 50
Symptom ························································································································· 50
Solution ··························································································································· 50
Configuration terminal display problems ························································································ 51
No display ························································································································ 51
Garbled display ················································································································· 51
Appendix A Chassis views and technical specifications ·························· 52
Chassis views ························································································································· 52
S6850-56HF ····················································································································· 52
S6850-2C ························································································································ 53
S9850-4C ························································································································ 55
S9850-32H ······················································································································ 56
Technical specifications ············································································································· 58
Appendix B FRUs ··········································································· 60
Power modules ······················································································································· 60
Fan trays ································································································································ 61
Expansion modules ·················································································································· 61
Appendix C Ports and LEDs ····························································· 63
Ports ····································································································································· 63
Console port ····················································································································· 63
Management Ethernet port ·································································································· 63
FE SFP modules ··············································································································· 64
USB port ························································································································· 64
SFP port ·························································································································· 64
QSFP28 port ···················································································································· 65
QSFP+ port ······················································································································ 68
SFP28 port ······················································································································ 69
SFP+ port ························································································································ 71
LEDs ····································································································································· 71
System status LED ············································································································ 71
QSFP28 port LED ············································································································· 71
QSFP+ port LED ··············································································································· 72
SFP28 port LED ················································································································ 72
SFP+ port LED ················································································································· 72
SFP port LED ··················································································································· 73
Management Ethernet port LEDs ·························································································· 73
Fan tray alarm LEDs ·········································································································· 73
Appendix D Cooling system ······························································ 74