3Com CoreBuilder 7000 Installation & Start?Up Manual page 50

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Table 9 CoreBuilder System States
Power
System State (green)
Power-on On
Normal operation On
Hardware fault On
Software fault On
No power to unit Off
-O
N
on the left side of the LED panel. Table 9 shows the correlation between
the current system state and SYS LEDs display. For example, during
normal operation the PWR LED is on, the FAIL LED is off and the ACT LED
is flashing. The LEDs on the right side of the panel indicate the status of
the Ethernet port, the Service port and the Control port.
1 0 B A S E - T
P W R
Service
FAIL
A C T Control
Figure 9 Switching Module LEDs
Fail Activity
(red) (yellow)
Off On
Off Flashing
On Off
Off Not flashing Undetermined Undetermined Undetermined
Off Off
The following table also provides information about the LED display of
system states but is organized by system status LED.
Table 10 Description of Switching Module LEDs
LED
PWR (Power)
ACT (Activity)
FAIL
10BASE-T
STATUS
Status
Status
Status
10BASE-T Service Port
Status Status
(green) (green)
On Flashing
On On
Off Off
Off Off
Color Description
Green DC power input active.
Yellow Should blink continuously when
operational.
Red CPU failure.
Green 10BASE-T link OK. The Ethernet link is
active.
Control
Terminal Status
(green)
Flashing
On
Off
Off
Source
Hardware
Software
Hardware
CPU or
Watchdog
Hardware
Ethernet
controller