.

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)
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