Testing Fibers
38
IDEAL
Testing in Auto Mode
Testing in Auto Mode
The application will automatically evaluate the best settings according to
the fiber link currently connected to the unit (in less than 5 seconds).
By default, fiber characteristics are evaluated each time you start a test.
This is particularly useful if you often have to test fiber links of different
lengths.
If you prefer, you can set your unit to keep the same settings (range and
pulse) for all acquisitions. This could be useful if you need to test several
similar fibers (same length) within the same cable. It is always possible to
reset the fiber settings later.
If you intend to test at multimode wavelengths, carefully read
Conditions for Multimode Measurements
To acquire traces in Auto mode:
1.
Clean the connectors properly (see
Cleaning and Connecting Optical
2.
Connect a launch fiber between the device under test and the OTDR
port. If necessary, set the
(see
If your unit is equipped with two OTDR ports, ensure that you connect
the fiber to the appropriate port (OTDR SM, OTDR MM, or
OTDR SM Live for filtered wavelength).
C
AUTION
Never connect a live fiber to the OTDR SM or OTDR MM port. Any
incoming signal greater than –40 dBm will affect the OTDR
acquisition. Any incoming signal greater than –20 dBm could
damage your OTDR permanently.