3Com 7000 manual Reception and transmission of cells on, Power-On

52CHAPTER 5: POWER-ON

Figure 10 Interface Module LEDs

Table 11 Description of Interface Module LEDs

LED	Color	Description	Source
PWR (Power)	Green	DC power input active.	Hardware
FAIL	Red	CPU failure.	Hardware
			CPU or
			Watchdog
ACT (Activity)	Yellow	Should blink continuously when	Software
		operational.

Table 12 Description of Interface Module LEDs for Each Port

LED	Color	Description	Source
LINK STATUS	Green	ATM physical layer is connected and	Software
		has no error.
FAIL	Red	ATM interface port test failure.	Software
ACT (Activity)	Yellow	Reception and transmission of cells on	Software
		ATM link – should flash to indicate
		traffic.

DS-3 Status LEDs The DS-3 status LEDs are found on the front panel of the DS-3 piggy. Table 13 lists the LEDs of the DS-3 piggy.