need to be enabled.
ONU Information Table
ONU ID and ONU S/N information is decoded from upstream PLOAM messages from the ONT/ONU. If the information is not displayed, it may
have been missed. Power cycle the ONU to initiate the ranging process again.
Rogue indicate upstream ONT traffic sent outside of allotted timeslots which can impact service quality on this PON-ID. This type of behavior
can be intermittent or continuous but requires ONT replacement to correct this behavior.
Signal Measurement Table
Displays 1490nm and 1310nm signal level values as measured at the MTTplus-420’s location. OLT Loss is the difference between the
transmitting signal from the OLT (
TX
) and the DS 1490nm signal level measured at the MTTplus-420 location.
If the OLT is not broadcasting its output power, the span loss value cannot be calculated.
Green, yellow, and red table colors indicate whether signal levels pass or fail against ITU-T G.984 standard threshold values configured in
Setup. Refer to
Test and Profile Settings
for information on test profile setup.
Green:
The measured signal is above the critical threshold.
Yellow:
The measured signal is below marginal and above critical.
Red:
The measured signal level is below the critical threshold and does not meet the specification.
E. Upstream/Downstream/TC-Sync Signal Status
For more information, refer to
Signal and Synchronization Status
.
F. Test and Profile Settings
Setup:
Setup Test profile
Advanced:
Leads to the Advanced Setup, Results, PLOAM and OMCI Decoder, and Active ONU
list.
Signal and Synchronization Status
The Status table displays detected 1490nm downstream, 1310nm upstream, and TC-Sync status.
Signal and Synchronization Status Table
Status Table
1490nm/1310nm:
If OK is displayed, light in the downstream 1490nm or upstream 1310nm direction is detected. If errors/alarms are
detected, they are displayed.
Transmission Connectivity Sync (TC-Sync):
OK UL/DL indicates that the MTTplus-420 is properly synchronized with the OLT and
ONU/ONT traffic. No UL/DL indicates the OLT and ONU/ONT are not synchronized properly. Consult VeEX technical support if unable to
achieve TC-Sync.
MTTplus-420_User_Manual_RevC00
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