Manual

 Fiber-to-the-Antenna (FTTA) Installation and Maintenance Testing
Test: Power Measurement
Absolute Power Level Measurement Using a VIAVI Optical Power Meter
The absolute power level (the system power measurement) is the amount of optical power present in the system,
measured in dBm. The source of this power is the transmitter or transceiver sending information through the
system. This test determines whether the output power of the transceiver is at the correct level or (when tested at
the end of the link) to determine if the signal level is within the receiver’s sensitivity range. The test is commonly
performed at various access points (BBU, RRU).
NOTE: This method is more common for network maintenance and troubleshooting.
TEST
Active fiber
optic system
Inspect Inspect
B
PP
PP
PP
Inspect
PP
Test lead
fiber - J1
Female bulkhead
inspection
B
Male patch cord
inspection
PP
PP
Integrated SmartClass Fiber optical power meter and inspection tool
1. Certify the male patch cord/test lead [J1] endfaces.
a. Press the to activate the PCM.
b. Inspect patch cord/test lead [J1] end A using the PCM.
c. Press the [TEST] button on the PCM.
d. Press
to save result (if necessary).
e. Move [J1] end A over to the OPM port.
f. Inspect patch cord/test lead end B using the PCM.
g. Press the [TEST] button on the PCM.
h. Press to save result (if necessary).
i. Leave end B in the PCM.
2. Certify the female bulkhead connector endface
a. Press the to activate the probe microscope.
b. Inspect the bulkhead endface using the probe microscope.
c. Press the [TEST] button on the probe.
d. Press
to save result.
e. Plug patch cord/test lead [J1] end B into the bulkhead port.
3. Measure the optical power
a. Press the to switch to the OPM.
b. Select desired wavelength (OPM value will be displayed on
the screen).
c. Press
to save result
d. Repeat as necessary for other wavelengths