11
OFT-3 User's Guide Rev A 2/7/14
Chapter 7 OTDR Operation
7.1 Key Pad
Power button, turns the unit On and Off. (Hold for 1 second)
Scan button starts a scan or stops scan.
AutoTest button operates range finder trace mode. The Range Finder mode momentarily checks test conditions
and starts a scan at the wavelength selected by the user but allows the OTDR to determine the pulse width and
range parameters.
The Menu button displays and hides the icon menu at the top of the display. It will also back out of most menu
selected screens. In the project folder and file manager it opens the file/edit menu bar. When the menu button
is pressed and the menu is displayed at the top of the screen, the focus of the LRUD buttons and the select
buttons are no longer on the trace cursors.
Toggles between A and B as the active cursors.
Selects the Zoom level, each press increments through the levels of 1x, 2x, 4x, 8x, 16x and 32x.
In the menu mode, the select button actuates highlighted item.
While in the trace mode the directional buttons are used to move the cursors and in the Menu mode, they
focus of these buttons is placed on the movement between icons or used to change settings.
Fig 6.4
