Controller LEDs

See Also: Node LEDs

SynqNet

SynqNet controller LEDs will BLINK to indicate a fault (or undiscovered network). A controller with no blinking LEDs is in normal cyclic operation (without faults). Each SynqNet port has two LEDs. And each LED has a particular function, which is described in further detail below.

Each controller will have four LEDs:

LED State Table: SynqNet

LED	Port	Meaning	Controlled by	State
LED1	OUT	Link Activity	PHY	ON = link active
				OFF = link inactive
LED2	OUT	Network Activity	MAC	ON = Tx and Rx active (cyclic phase)
				BLINK = Tx only active (discovery phase)
				OFF = Idle (shutdown phase), or during a network reset.
LED3	IN	Link Activity	PHY	ON = link active
				OFF = link inactive
				ON = Tx
LED4	IN	Network Activity	MAC	ON = Tx and Rx active (cyclic phase)
				BLINK = Tx only active (discovery phase)
				OFF = idle (shutdown phase), or during a network reset.

LED1 and LED3 = Link Activity

On (Link Active)
Off (Link Inactive)

LED2 and LED4 = Network Activity

On (Cyclic Phase--Tx and Rx are Active)
Off (Shutdown Phase--Idle State or network reset)
Blink (Discovery Phase--only Tx is Active)