3Com 155 PCI manual Link LED

Link LED 6-19

Link LED

The state of the Link LED indicates the ATMLink NIC operating status. Table 6-3 explains the possible LED states.

Table 6-3 LED Activity

LED State	Explanation
Slow blinking	■ The operating system is loading the drivers and
	activating the NIC.
	■ A diagnostic test is being run.
Lit	A good link is established with the ATM switch.
Off	■ A link with the ATM switch has not been established.
	■ The NIC is a standby NIC.
	■ The driver is not loaded.

The LED of a standby NIC does not light unless the NIC changes to active status.