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Figure 29: Airflow for the J-EX8216 Switch Chassis Rear
NOTE:
Do not block the air intake below the power supply slots.
The Routing Engine (RE) module monitors the temperature of switch components. Under
normal operating conditions, the fans in the fan trays run at less than full speed. Each
fan tray has two fan tray controllers.
In each fan tray, the fans are numbered 1 through 9. Fans 1 through 5 are controlled by
the first fan tray controller. Fans 6 through 9 are controlled by the second fan tray
controller. If one fan tray controller fails, the other fan tray controller keeps the remaining
fans in the fan tray working. This allows the switch to continue to operate normally as
long as the remaining working fans cool the chassis sufficiently.
If the ambient temperature rises above the threshold 113°F (45°C), the speed of the
working fans is automatically adjusted to keep the temperature within the acceptable
range, 32°F (0°C) through 104°F (40°C).
47
Chapter 2: Component Descriptions
Summary of Contents for PowerConnect J-8216
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Page 189: ...PART 5 Switch and Component Maintenance Routine Maintenance on page 175 173 ...
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Page 197: ...PART 6 Returning Hardware Getting Help on page 183 181 ...
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Page 253: ...PART 8 Compliance Information Compliance Information on page 239 237 ...
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Page 259: ...Declarations of Conformity for J EX8216 Switches 243 Chapter 20 Compliance Information ...
Page 261: ...PART 9 Index Index on page 247 245 ...
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