User guide

OMNIScanner User Guide
3 - 2
to communicate with OMNI Remote .
While the reference data is being established, a
gauge indicates the progress.
OMNI Scanner notifies you when the process has
been completed. The REMOTE INFO screen will
be displayed.
Note: Set Reference is only needed to periodically verify and establish the
signal reference for attenuation. The function does not affect any other
measurements.
Press ESC to return to the SETUP screen.
Set Reference with the OMNIFiber Adapters
Note: The fiber reference expires each day at midnight. It must be set each
calendar day that OMNIFiber adapters are used. The reference value
should also be set every time a fiber is removed from either OMNIFiber TX
port.
Accurate, repeatable measurements of optical power and signal loss are
fundamental for the installation and maintenance of fiber optics.
To make an accurate measurement, you need to store a reference value
before a loss measurement can be calculated. The reference value com-
pensates for the signal loss in the launch cable(s) and connector(s).
Once the reference value is established, consistent
readings for loss, delay, and length measurements
are ensured.
With the OMNI Fiber adapters attached to OMNI-
Scanner and OMNI Remote , and the launch cable(s)
in place, select Set Reference to display the SE-
LECT METHOD screen. Note: The SELECT
METHOD screen will not be displayed if a fiber is
attached to the TX and RX ports of the same
OMNIFiber adapter (Loopback).
Select a Reference Method A, B, or C, and press the
appropriate function key to continue.
(See Chapter 7 - Fiber Optic Reference for detailed
information about establishing a reference value with
fiber optic launch cables.)