OLT-85/OLT-85P
57
9 M
EASURING
L
OSS
WITH
S
OURCE
/P
OWERMETER
G
ENERAL
INFORMATION
9
M
EASURING
L
OSS
WITH
S
OURCE
/
P
OWERMETER
General information
The OLT-85 offers three different measurement modes.
•
Source Mode:
The instrument works as a laser source.
•
Powermeter Mode:
The instrument works as an optical power
meter.
Instead of using the
Loss Mode
which restricts the measurement
to a fiber loop, two OLT-85/OLT-85P instruments can be used for
remote operation. In this
Source/Powermeter Mode
one
instrument (like another OLT-85 or the OLS-85) works as a laser
source, while the other OLT-85/OLT-85P works as an optical
power meter.
For information on measurement adjustements on your
powermeter device see “Powermeter Operation” on page 44.
Performing the measurement
1.
Select the Source application on your source device and the
Powermeter application on your powermeter device.
2.
Perform the Referencing on the powermeter device:
a) Decide for one of the Reference methods
(see “Appendix - Referencing Methods” on page 79).
b) Connect both devices accordingly.
c) Switch on the laser on your source device.
d) Press the
[
A
]
key and tap the
[
Store ABS->REF
]
button.
3.
Switch the laser source off.
4.
Connect your fiber system under test as shown in figure [...].
5.
Switch on the laser on your source device.
The loss is displayed on the powermeter device.
