3Com 7000 manual P W R F A I L A C T, 1 0 B A S E - T Status, S e rv i ce, Control Status

50CHAPTER 5: POWER-ON

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.

P W R

F A I L

A C T

1 0 B A S E - T Status

S e rv i ce Status

Control Status

Figure 9 Switching Module LEDs

Table 9 CoreBuilder System States

				10BASE-T	Service Port	Control
	Power	Fail	Activity	Status	Status	Terminal Status
System State	(green)	(red)	(yellow)	(green)	(green)	(green)
Power-on	On	Off	On	On	Flashing	Flashing
Normal operation	On	Off	Flashing	On	On	On
Hardware fault	On	On	Off	Off	Off	Off
Software fault	On	Off	Not flashing	Undetermined	Undetermined	Undetermined
No power to unit	Off	Off	Off	Off	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	Color	Description	Source
PWR (Power)	Green	DC power input active.	Hardware
ACT (Activity)	Yellow	Should blink continuously when	Software
		operational.
FAIL	Red	CPU failure.	Hardware
			CPU or
			Watchdog
10BASE-T	Green	10BASE-T link OK. The Ethernet link is	Hardware
STATUS		active.	Ethernet
			controller