Each LED has a particular function which is described
in further detail below.
|
LED
|
Port
|
Meaning
|
Controlled by
|
Meaning
|
|
LED1
|
IN
|
Link Activity
|
PHY
|
ON = Link active. Normal
Operation. |
| OFF = Link inactive |
|
LED2
|
IN
|
Node State
|
MAC
|
ON = Tx and Rx are
Active (Cyclic Phase) Normal Operation. |
| OFF = Unpowered, Reset,
Inactive State. Network not cyclic. |
| Blink 2Hz = (Undiscovered
State) |
| Blink 4Hz = (Discovered
State) |
| Blink 8Hz = (SYNQ
Recovery) |
| Blink 16Hz = (SYNQ
Lost) |
|
LED3
|
OUT
|
Link Activity
|
PHY
|
ON = Link active. Normal
Operation. |
| OFF = link inactive |
|
LED4
|
OUT
|
Repeater
|
MAC
|
ON = SYNQ operation
is ON (Repeater ON). Normal Operation. |
| OFF = Unpowered, Reset,
Inactive State (Repeater OFF). |
| Blink 4Hz = Tx and
Rx are Active (Cyclic Phase) |
| Blink 8Hz = SYNQ Recovery |
| Blink 16Hz = SYNQ
Lost |
|
LED5
|
FPGA Boot Status
|
Repeater
|
MAC
(FPGA)
|
ON = no
nodeAlarm. Normal Operation. |
| OFF = Unpowered or
Reset |
| Blink = nodeAlarm. (node fault or network fault).
See Node Alarm. |
