
ONT-2-E4xxxi Multi-service Residential Gateway Series Hardware Installation Guide
TM 87-10879 Rev. A
UNRELEASED DRAFT
15
Figure 1 LED Indicators on EPON Multi-service Gateway ONT
See Table 6 for a description of the LED indicators located on the front top of an EPON Multi-service
Gateway ONT.
Table 6 LED Indicators and Descriptions
LED
Color
Status
Description
PWR
(Power) or
SYS
(System)
Green-Blinking
Blinks
Booting up.
Green-Solid
On
ONT is operating.
Backup Power
Dark
Off
No backup power is present.
Green-Solid
On
Backup power is present.
Green-Blinking
On
Slow blinking green when ONT is running on backup
power.
Fast blinking green when a problem exists with the
backup power.
EPON
Dark
On
No fiber uplink to EPON interface or failed to connect
over EPON network.
Green-solid
On
PON uplink is OK, and EPON network connection is
operational.
Alarm
Dark
Off
No alarm condition exists.
Red-Blinking
Blinks
Alarm condition exists.
WAN
(Internet)
Dark
Off
No fiber uplink to EPON interface or ONT model is
configured by Service Provider so that it does not have
a routed connection to the internet.
Green-Blinking
Slow Blink
During DHCP, ONT failed to receive an IP address
from the service provider.
Green-solid
On
ONT is connected to the WAN.