The fan trays continue to operate indefinitely and provide sufficient cooling even when
a single fan fails provided the room temperature is within the operating range. You can
check the status of fans and the chassis temperature from the Environment Status option
in the Status menu on the LCD panel. See “LCD Panel in a J-EX8200 Switch” on page 19.
You cannot replace a single fan. If one or more fans fail, you must replace the entire fan
tray.
WARNING:
There is no fan guard on the fans. Be careful to keep your fingers
clear of moving fan blades when you are removing the fan trays.
Related
Documentation
Field-Replaceable Units in a J-EX8216 Switch on page 25
•
•
Installing a Fan Tray in a J-EX8216 Switch on page 116
•
Removing a Fan Tray from a J-EX8216 Switch on page 159
Midplane in a J-EX8216 Switch
The midplane is located in the center of the chassis and forms the rear of the line card
cage. The Routing Engine (RE) modules, power supplies, fan trays, and line cards plug
into the midplane from the front of the chassis. The Switch Fabric (SF) modules plug
into the midplane from the rear of the chassis. The midplane contains an EEPROM that
stores the serial number and revision level of the midplane.
The midplane performs the following functions:
•
Power distribution—The midplane distributes power to all the switch components
from the power supplies that plug into it.
•
Control-signal connectivity—The midplane transports the control signals exchanged
by system components for monitoring, control, and management purposes.
•
Transfer of data between line cards and SF modules—The midplane provides
connectivity for data traffic to and from the line cards and the SF modules.
WARNING:
High levels of electrical energy are distributed across the switch
midplane. Do not touch the midplane connectors or any component
connected to the midplane with any metallic object while you are servicing
components installed in the switch.
Related
Documentation
Field-Replaceable Units in a J-EX8216 Switch on page 25
•
•
J-EX8216 Switch Hardware Overview on page 3
48
Dell PowerConnect J-Series J-EX8216 Ethernet Switch Hardware Guide
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 ...
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