
iv
Connecting the physical IRF ports ································································································································ 44
Accessing the IRF fabric to verify the configuration ··································································································· 44
Maintenance and troubleshooting ·······························································································································46
Password loss ································································································································································· 46
Console login password loss ······························································································································· 46
Boot ROM password loss ····································································································································· 46
Power supply failure ······················································································································································ 46
Fan failure (A5120 EI switches only)··························································································································· 48
Console terminal problems ··········································································································································· 48
Support and other resources ········································································································································49
Contacting HP ································································································································································ 49
Subscription service ·············································································································································· 49
Related information························································································································································ 49
Documents······························································································································································ 49
Websites ································································································································································ 49
Conventions ···································································································································································· 50
Appendix A Technical specifications···························································································································52
Panel views ····································································································································································· 52
A5120-24G EI (2 slots)/A5120-24G EI TAA (2 slots) ····················································································· 52
A5120-48G EI (2 slots)/A5120-48G EI TAA (2 slots) ····················································································· 53
A5120-24G EI······················································································································································· 54
A5120-48G EI······················································································································································· 55
A5120-24G-PoE+ EI (2 slots)/A5120-24G-PoE+ EI TAA (2 slots) ·································································· 56
A5120-48G-PoE+ EI (2 slots)/A5120-48G-PoE+ EI TAA (2 slots) ·································································· 57
A5120-16G SI ······················································································································································ 57
A5120-24G SI ······················································································································································ 58
A5120-48G SI ······················································································································································ 58
A5120-24G-PPoE+ SI··········································································································································· 59
A5120-24G-PoE+ SI············································································································································· 60
Technical specifications················································································································································· 61
Chassis dimensions and weights ························································································································· 61
Ports and interface card slots······························································································································· 61
Power specifications ······················································································································································ 62
Power input types ·················································································································································· 62
AC input voltage specifications ··························································································································· 62
RPS DC input voltage specifications and RPS compatibility ············································································· 62
Power consumption specifications for non-PoE switches··················································································· 63
Power consumption specifications for PoE switches ·························································································· 63
Cooling system ······························································································································································· 64
Appendix B FRUs and compatibility matrixes·············································································································65
Interface cards (A5120 EI switches only)···················································································································· 65
SFP/SFP+/XFP transceiver modules and SFP+/CX4 cables (A5120 EI switches only) ········································· 65
GE SFP transceiver modules································································································································· 66
10-GE SFP+ transceiver modules························································································································· 67
SFP+ cables···························································································································································· 67
10-GE XFP transceiver modules··························································································································· 68
CX4 cables····························································································································································· 68
SFP transceiver modules and SFP Stacking Kit (only for the A5120 SI switches) ··················································· 69
Appendix C Ports and LEDs··········································································································································71
Ports················································································································································································· 71
Console port ·························································································································································· 71
10/100/1000 Base-T Ethernet port··················································································································· 71