ZyXEL Communications ONU-6100B-21 User Manual page 5

1.1 Check the LEDs (Lights)
• The POWER LED turns steady on when you connect the
ONU-6100B-2x to the power supply.
• The PON LED turns on when the fiber connection is avail-
able.
• The LAN LED turns on when the LAN port is properly con-
nected.
The following table describes the LEDs in detail.
Label Color
POWER Green
PON Green
ONU-6100B-2x Series User's Guide
Status
On
Off
On
Off
Blinking
Description
The ONU-6100B-2x is receiving
power and is ready.
The ONU-6100B-2x is not receiving
power.
Connection to the optical network is
up.
Connection to the optical network is
down.
The ONU-6100B-2x is trying to
register to an OLT.
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