Extreme Networks 7720 Installation Manual page 5

Table of Contents
Replace Fan Modules.................................................................................................................................................................... 72
Remove the Device from the Rack.....................................................................................................................................73
Monitor the Switch..................................................................................................................... 77
System Status LEDs........................................................................................................................................................................77
RJ-45 Management Port LEDs..............................................................................................................................................78
QSFP28 Port LEDs...........................................................................................................................................................................78
800 W AC Power Supply LEDs...............................................................................................................................................79
800 W DC Power Supply LEDs..............................................................................................................................................79
Technical Specifications............................................................................................................81
7720 Series Technical Specifications.................................................................................................................................. 81
Acoustic Noise and Fan Speed.............................................................................................................................................. 83
CPU, Memory Specifications...................................................................................................................................................84
Mean Time Between Failures.................................................................................................................................................84
Power Specifications..................................................................................................................................................................... 84
Environmental.................................................................................................................................................................................... 85
Standards............................................................................................................................................................................................... 86
EMI/EMC Standards....................................................................................................................................................................... 87
Power Cord Requirements for AC-Powered Switches and AC Power Supplies.............................88
Console Connector Pinouts..................................................................................................................................................... 88
Safety Information...................................................................................................................... 91
Considerations Before Installing............................................................................................................................................91
General Safety Precautions.......................................................................................................................................................92
Maintenance Safety........................................................................................................................................................................ 93
Fiber Optic Ports and Optical Safety.................................................................................................................................93
Cable Routing for LAN Systems........................................................................................................................................... 94
Install Power Supply Units and Connect Power......................................................................................................94
Select Power Supply Cords....................................................................................................................................................... 95
Remove the Switch from a Four-Post Rack.......................................................................................................73
Remove the Switch from a Two-Post Rack........................................................................................................ 75
External Interfaces.................................................................................................................................................................. 81
Weights and Dimensions of Accessories.............................................................................................................82
Acoustic Noise...........................................................................................................................................................................83
Fan Tray and Speed Variation....................................................................................................................................... 83
Power Supply Specifications.........................................................................................................................................84
Power Consumption............................................................................................................................................................85
Power and Heat Dissipation.......................................................................................................................................... 85
Environmental Specifications.......................................................................................................................................85
Environmental Compliance...........................................................................................................................................85
Environmental Operating Conditions................................................................................................................... 86
Packaging and Storage Specifications................................................................................................................. 86
North American ITE ............................................................................................................................................................ 86
European ITE..............................................................................................................................................................................86
International ITE......................................................................................................................................................................86
North American EMC for ITE.........................................................................................................................................87
European EMC Standards............................................................................................................................................... 87
International EMC Certifications................................................................................................................................ 87
Country Specific...................................................................................................................................................................... 87
IEEE 802.3 Media Access Standards....................................................................................................................... 88
Extreme 7720 Hardware Installation Guide v