13
OFT-3 User's Guide Rev A 2/7/14
Chapter 7 OTDR Operation
Fig 7.2
"B" Cursor with Position Data
"A" Cursor with Position Data
Main Trace Screen
Distance Increment Indicators
Zoom Bar
At 1X this indicates the range and
at other zoom levels this indicates
the portion of the trace displayed.
Zoom Control
Displays the zoom level, and the
values in distance and dB per grid
division. Touch anywhere in the
area to cycle through the zoom
levels.
Scan Button
Displays scan state / status and the
charge level of the batteries. Touch
anywhere in the area to start or stop
a scan.
Loss Method
Displays splice loss, LSA splice
loss, dB per Km and ORL. Touch
anywhere in this area to cycle
through the loss methods.
Test Parameters
Displays test parameters of wave-
length, averaging time, pulse width,
range and ORL. Touch the symbol
or value to cycle through the avail-
able settings.
"A-B" Cursor Status / Select
Displays the 2pt loss and distance
between the "A" and "B" cursors.
Touching anywhere in this area will
toggle between active cursors.
7.4
Main OTDR Screen
Touch Screen Tip
Use the touch screen to snap cursors to a position by touching that point along the trace curve. The active cursor
will move directly to that point. For finer movement, touch active cursor and drag it to the desired position. Finest
movement can be accomplished with the LRUD buttons.
Touch Screen Tip
All the test parameters may be change by touching the value on the touch screen. A long touch in the test pa-
rameter section of the screen will open the parameter settings page. A/B cursor, zoom, loss method and scan
may all be operated with the touch screen.
