Fail Led Solid Red; Figure 29. Fail Led Flowchart - ADTRAN Total Access 300 Installation And Maintenance Practice

FAIL LED Solid Red

The FAIL LED is solid red for a short period of time after reset. If it remains solid red, perform
the troubleshooting below. Flashing red is normal during ranging and during turn-up.
Utilize the flowchart in
Check reflective
power with PON
power meter
Is power
present?
No
Check for
defective optical
connection
61187602G2-5A
Figure 29 to determine the cause and correct the problem.
FAIL LED
remains solid red
No Is there
a failure at
the OLT?
Yes
Replace ONT
No
Is connection
defective?

Figure 29. Fail LED Flowchart

Yes
Work with
OLT admin
to resolve
Yes
Repair/Clean
connection
Installation
FAIL LED off
49