User's Guide

User Guide
4 Troubleshooting
4.1 ONT Status LEDs
The ONT status LEDs assist with installation and maintenance procedures.
These LEDs are described in Table 8.
Figure 6 ONT Status LEDs Location
Table 8 T077G LED Description
LED
Color Status
Indication
G102399A
POWER Green Solid ONT is operating from AC power
Slow
Blink
Fast
Blink
ONT is operating from UPS power
System Booting
Red Solid UPS battery low
LINK Green
AUTH Green
Solid Optical link is OK
Off Optical link is NOT OK
Solid ONU is authorized
Blink ONU is registering
Off ONU is NOT authorized
LAN1/4 Green
Solid LAN port connected, but no data
transmission.
Blink LAN port has data transmission
Off LAN port is not connected to
terminal device or system power
is off
12 220-00599 R10 | October, 2013