Table of Contents
Advertisement
Total Access 374 4-POTS, 4-GigE MDU ONT Installation and Maintenance Guide
Troubleshooting
When troubleshooting an ONT unit, consider the following two principles:
■ Because voice and data signals originate at the OLT equipment, a failure of all services
■ The OLT has diagnostic testing procedures that can monitor the status of every ONT in
This section describes how to troubleshoot and correct the following:
■
■
■
Faults Indicated with LEDs
Begin troubleshooting at the ONT by checking to see if all LEDs are in their normal state,
shown in
LEDs in Normal State
If the LEDs are in the normal state (see
problems, complete the following troubleshooting steps:
1. If the trouble is of a random or intermittent nature, check for loose or broken connections
2. If the trouble is solid, remove the Customer Provided Equipment (CPE) wiring and
3-2
normally indicates the problem is before the ONT. A failure at the OLT equipment
normally results in a loss of service to multiple customers.
the system, which very often can direct you to the root cause of the trouble.
"Faults Indicated with LEDs"
"Cleaning and Inspection of Components"
"Signal Level Verification"
Table 3-2
on page 3-3.
at the common mounting platform.
perform the following tests:
■ POTS tests described in
■ Ensure Provisioning of the ONT at the OLT has been completed. For the provisioned
Ethernet link, use external equipment (for example, a laptop computer) to verify the
Ethernet link is active. Verify the OLT can run and pass the loop-back tests for the
Ethernet port.
If the above tests are successful, the indication of the trouble is directed back toward the
CPE wiring/equipment.
below
on page 3-6
on page 3-10
Table 3-2
on page 3-3) but you are still having
"POTS Troubleshooting"
on page 3-5
61287703G1-5B
Advertisement
Table of Contents
Troubleshooting
