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DUA1860-0AAA01
Using The LEDs For Fault Diagnosis 6-3
Using The LEDs For Fault Diagnosis
The LEDs on the front of the module indicate bridge activity and
faults:
■
PWR (Power)
Green on - Normal: power present, self-test completed
successfully and bridge operating normally.
Green flashing - Self-test is in progress (this lasts about one
second).
Red on - Fault: a fault has occurred during power-up self-test or in
operation. You should contact your supplier immediately for
advice.
■
TX
n
or TX (Transmit)
Yellow flashing - Flashes every time a frame is transmitted from
port
n
or external port.
■
RX
n
or RX (Receive)
Yellow flashing - Flashes every time a frame is received by port
n
or external port.
■
EN
n
or EN (Enabled)
Yellow on - Port
n
or external port is enabled, listening or
learning.
Yellow flashing - Port
n
or external port is enabled and blocking.
Off - Port
n
or external port is disabled.