Fan Tray Assembly
The 3810M switches have a field-replaceable fan tray. If necessary, the fan tray can be replaced
while the switch is operating. For more information, see Replacing the Fan Tray.
Out-of-Band Management (OOBM) Port
This RJ-45 port is used to connect a dedicated management network to the switch.
LEDs on the Back of the Switches
This section describes the LEDs on the back of the switch. When the Back LED on the front of
the unit is blinking a fault, the user can then look at the back of the switch to find the corresponding
blinking LED for the faulted module.
Figure 7 LEDs on the Back of Switches
Table 12 Back of the 3810M Switches LED Labels and Description
DescriptionLabel
Unit Identification LED1
Fan Status LED2
OOBM Port LED: Activity/Link3
Power Supply Status LEDs4
Table 13 LEDs on the Back of the Switch
MeaningStateFunctionSwitch LEDs
Normal operation: Fan tray
assembly is functioning
correctly.
On GreenStatus of Fan tray.Fan Status
One or more fans in the fan
tray is faulted.
Slow Flash Orange
The Global Status and Back
LEDs on the front of unit
must also be synchronized
and flashing orange.
The chassislocate
command allows you to
On or Slow FlashUsed to assist you to
identify a particular unit in a
rack or collection of
products.
Unit Identification
blink or turn on the LED for
a specified number of
22 Introducing the 3810M switches
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