Site Preparation
Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
28
Mechanical Recommendations for the Rack
Use distribution racks that meet the following mechanical recommendations:
●
Use an open style, 19-inch rack to facilitate easy maintenance and to provide proper ventilation.
●
Use a rack made of steel or aluminum.
●
The rack should use the universal mounting rail hole pattern that is identified in IEC Standard 297.
●
The rack should have designated earth grounding connections (typically on the base).
●
The rack must meet earthquake safety requirements equal to that of the installed chassis.
●
The mounting holes should be flush with the rails to accommodate the chassis.
●
Install equipment into the lower half of the rack first to avoid making the rack top-heavy.
●
The rack should support approximately 600 pounds (272 kilograms).
Protective Grounding for the Rack
Use a rack grounding kit and a ground conductor that is carried back to earth or to another suitable
building ground.
All Extreme Networks switches are designed with mounting brackets that provide solid metal-to-metal
connection to the rack. If you do not use equipment racks, you can attach wiring terminals directly to
the mounting brackets for appropriate grounding. Extreme Networks switches have grounding
terminals that are mounted on the back of the chassis.
At a minimum, follow these guidelines to ground equipment racks to the earth ground:
●
CAD weld appropriate wire terminals to building I-beams or earth ground rods.
●
Use the appropriate chassis grounding wire for your system, which is dependant upon the available
input current to the power supply.
■
For AC systems using a 20A breaker per PSU (SSI AC), the chassis ground can be as small as
14 AWG. The power cable ground should be the same size as the primary.
■
For DC systems using a 15A breaker per PSU (Summit X450a-48tDC switch), the chassis
ground can be as small as 14 AWG. The power cable ground should be the same size as the
primary.
■
For DC systems using a 40A breaker per PSU (SSI DC), the chassis ground can be as small as
10 AWG. The power cable ground should be the same size as the primary.
This recommendation does not apply to the Summit family of switches, other than the Summit
X450a-48tDC switch. Other Summit switches do not need separate chassis grounding for AC or DC
systems.
NOTE
For complete details on power supplies and power supply cords, refer to the following:
Chapter 6, “Extreme
Networks Power Supply Units for BlackDiamond Switches,”
and
“Power Supply Cords Selection” on page 375
in
Appendix A, “Safety Information.”
Drill and tap wire terminals to equipment racks.
●
Position the earth ground as close to the equipment rack as possible to maintain the shortest wiring
distance possible.
●
Use a ground impedance tester or micro-ohm meter to test the quality of earth ground connection at
the chassis. This will insure good grounding between the chassis, rack, and earth ground.
Содержание BlackDiamond 10808
Страница 14: ...Table of Contents Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 14 ...
Страница 18: ...Preface Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 18 ...
Страница 19: ...1 Site Preparation ...
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Страница 40: ...Site Preparation Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 40 ...
Страница 41: ...2 BlackDiamond Switches ...
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Страница 68: ...BlackDiamond 8800 Modules Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 68 ...
Страница 92: ...BlackDiamond 10808 Series Modules Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 92 ...
Страница 93: ...3 Installing BlackDiamond Switches and Modules ...
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Страница 189: ...4 Installing BlackDiamond Switch Accessories ...
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Страница 206: ...BlackDiamond Cable Management Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 206 ...
Страница 207: ...5 BlackDiamond Maintenance Procedures ...
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Страница 239: ...6 Summit Family of Switches ...
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Страница 278: ...Summit Family of Switches Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 278 ...
Страница 335: ...7 Optics ...
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Страница 363: ...8 Initial Management Access ...
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Страница 369: ...9 Appendixes ...
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Страница 414: ...Technical Specifications Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide 414 ...