Measurements On The Fiber Under Test - JDS Uniphase 4100 User Manual

Measurements
on the fiber
under test
Chapter 7 Power meter and Source options of the OTDR Modules
a Select the Optical powermeter icon of the mainframe in Home
page
b In the LTS result page, press Pow. Reference > Jumper Ref..
A popup message appears
c
Connect the jumper from the OTDR port to the mainframe power
meter, and then press OK
The reference is performed automatically.
A popup message appears once done. Press any key to continue
The reference levels are stored into the unit, and have been automati-
cally filled into the setup.
Once the references have been performed on both units:
1
After a reference in loopback mode, disconnect the jumper from the
powermeter port on the T-BERD/MTS (1) and the jumper from the
Source port on the T-BERD/MTS (2).
After a reference in Side by side mode, disconnect the bulkhead
connector and keep the jumpers connected to the Source and
Powermeter ports.
2
Connect the jumpers to the fiber under test using the appropriate
method (ex. keying mechanism for FC/PC types).
3 On MTS / T-BERD (1) select Laser On to activate the light source.
OTDR Module:
Source port
T-BERD/MTS (1)
Fig. 63
Measurement of the fiber under test
Measurement using a mode conditioner
To perform an Insertion Loss measurement with a Source that is
compliant to IEC 61280-4-1 Ed2 Standard on encircled flux, it is recom-
mended to use a mode conditioner after the OTDR Source port.
Once the Source on T-BERD/MTS (1) and the Powermeter on T-BERD/
MTS (2) are referenced in loopback or side-by-side mode:
1
Connect the Multimode source (1) to the mode conditioner
User Manual 770000102/08
Performing the insertion loss measurement
(on the upper part, on the base options line)
Fiber Under Test
Jumper
Mainframe
Power meter
port
T-BERD/MTS (2)
101