Switch Rear View Detail - 3Com 3812 - SuperStack 3 Switch Getting Started Manual

16 C 1: I
HAPTER NTRODUCING THE
Switch Rear View
—
Detail
S S 3 S
UPER TACK WITCH
LED Color
Off
Power LED (Switch 3812 and Switch 3824)
Green
Red
Off
Self Test LED (Switch 3812 and Switch 3824)
Green flashing
Green
Red
Red flashing
Off
Power/Self Test LED (Switch 3848 only)
Green
Green flashing
Yellow
Off
Fault LED (Switch 3848 only)
Red
Off
Figure 4 Switch 3812 and Switch 3824 — rear view
3812, S 3824,
WITCH AND
Indicates
No link is present.
The Switch is powered-up and operating normally.
The Switch has a fault with the Power Supply Unit.
The Switch is not receiving power or there is a fault
with the Power Supply Unit.
There is a test in progress.
All tests have been passed and the Switch is ready for
use.
A fault has occurred.
An internal fan has failed.
The unit is booting-up.
The Switch is powered-up and operating normally.
The Switch is either downloading software or is
initializing (which includes running a Power On Self
Test).
The Switch is faulty.
The Switch is not receiving power or there is a fault
with the Power Supply unit.
The Switch and/or the PSU are above critical
temperature but below critical shut down temperature.
Fans are operating normally.
The Switch and PSU are below critical temperature.
One or more fans have failed.
S 3848
WITCH