ZyXEL Communications ONU-6040BBF-22 - V1.00 User Manual page 8

The following table describes the LEDs in detail.
Label Color
PWR Green On
Red
PON Green On
LNK
PON Red
STATUS
8
Status Description
The ONU-6040BF-2x is getting
proper input power voltage and is
turned on.
On The ONU-6040BF-2x is receiving
abnormal input power voltage.
Off The power is off or there is a
power failure.
Connection to the optical network
is up.
Off Connection to the optical network
is down.
Blinking The ONU-6040BF-2x is trying to
register to an OLT.
Off The ONU-6040BF-2x is receiving
good optical signals from the OLT
successfully and no error signals.
Blinking The ONU-6040BF-2x is receiving
error signals or no optical signals
from the OLT.