Chapter 4
Power meter and Source functions on the OTDR test port
Performing an insertion loss measurement
User Manual
700MAN201 Rev. 002
85
1
Before connecting fiber/jumper, use appropriate cleaning tool to clean connector
end-faces.
2
Connect the reference/graded jumper from the light source directly to the power
meter.
3
Activate the OTDR light source, on equipment (1)
a
Press the
H
OME
key.
b
Select the source icon. It turns yellow to show it is active
.
c
In the Results page, press
Laser START
.
d
Select the
Twintest
mode in the list.
4
Activate the power meter, on equipment (2) (on the OTDR module, on the main-
frame)
a
Press the
H
OME
key
b
Select the power meter icon. It turns yellow to show it is active
.
c
In the
Results
page, press
Standard Ref.
for each wavelength.
The actual power level is set as the new reference level for the selected
wavelength. Then, the displayed value is around 00.00 dB.
The reference levels are stored and entered in the setup fields.
Measurement on the fiber under test
Once the references have been performed on both units:
After a Side by side reference, always keep the jumper connected to the equipment (1)
the light Source and connect another graded jumper to the Power meter port, equipment
(2).
1
Connect the jumpers to the fiber under test using the appropriate method (ex.
keying mechanism for FC/PC types).
Figure 48
Side by side reference - 1 jumper reference
OTDR
Source
Mainframe, USB or
OTDR module
Power meter
T-BERD/MTS / SmartOTDR(2)
T-BERD/MTS / SmartOTDR (1)
Jumper
OTDR New IHM rev002.book Page 85 Jeudi, 5. mai 2022 11:50 11
