Switch 4400 - Rear View Detail - 3Com 3C17203 Getting Started Manual

Switch 4400 — Rear
View Detail
LED Color
Green rotating When a software upgrade is in progress, the Unit LEDs of the
Green flashing The Switch physically forms a stack with other Switch 4400
Off
Power/Self Test LED
Green
Green flashing The Switch is either downloading software or is initializing
Yellow
Off
Figure 4 Switch 4400 / 4400 SE — rear view 1
Switch 4400 — Rear View Detail
Indicates
unit that is being upgraded flash on and off in the following
sequence —
1,2,4,6,8,7,5,3 (24-port)
1,2,3,4,8,7,6,5 (48-port)
units, but cannot be managed as part of that stack until all
units have been upgraded to software version 2.0 or later.
A fault has occurred.
The Switch is powered-up and operating normally.
(which includes running a Power On Self Test).
The Switch has failed its Power On Self Test.
The Switch is not receiving power or there is a fault with the
Power Supply Unit.
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