Triple-Play Service Deployment

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Once customers have been established, ONTs and OLTs are installed. Next, the drop cable is installed. When the ONTs and OLTs are activated,
testing with a selective power meter (SPM) is performed at the ONT and OLT locations. At the OLT location, ORL testing may be performed.
Central Office
FDF
OLT
LTS
FDH
Splitter
Chapter 3: Deploying and Troubleshooting Fiber Networks
Upon completion, the technician may opt to perform insertion
loss testing again by connecting one unit to the FDH and the other
unit to the fiber at the ONT. An alternative method is testing with
an OTDR from the ONT location.
Step Task Objective Test Tool
1 Insertion loss testing of the Acceptance testing for the OTDR or source/Power meter
distribution network with distribution network with
drop cable drop cable
Note that not all OTDRs are equipped to disable the test if customer
traffic is present. When turning up a residence on a link that is
already in service, the technician must never send a test signal from
the premises back upstream unless the test system is equipped with
an out-of-band wavelength and its performance has been verified
with respect to the network.
Figure 3.12 PON equipment installation testing
ONT on customer premises
ONT
Terminal
Terminal
Terminal
ONT
Drop cables