Selecting A Mode - Viavi SmartClass Fiber OLTS-85 User Manual

7 L O
ASER PERATION
S
ELECTING A MODE
OLTS-85
54
Auto-λ-Serial automatically toggles between all selected
wavelengths (see Fig.
power meter (e.g. OLP-3x, OLP-85), the power meter
automatically sets up with correct wavelength settings. This
mode should be selected when low levels are expected on the
optical power meter or when the power meter doesn't support
Auto-λ-Multi.
Fig. 21 Auto-λ-Serial
Note: Wavelengths cannot be reliably detected by a power
meter, if
• the receive level is too low,
• the wavelength encoding cannot be detected due to
interference, or
• you are measuring the absolute level of a system that
does not have wavelength encoding matching Viavi
power sources.

Selecting a mode

Tapping the [Mode selection]
the modes as shown in the figure below. There are modes where
only a single wavelength can be selected (i.e. CW, 270 Hz, 1 kHz,
2 kHz). Furthermore, there are Auto λ modes where multiple
wavelengths can be selected (i.e. Auto λ, Auto-λ-Multi, Auto-λ-
Serial). When only one (a single) wavelength is selected, the
device is in Auto λ mode. When multiple wavelengths are
selected, you can toggle between Auto-λ-Multi and Auto-λ-
Serial mode.
Fig. 22 Mode selection
21), and, combined with a compatible
λ λ λ λ
1 2 3
. . .
Optical fiber
field (see Fig.
Time
λ λ
4 1 2
. . .
19) toggles between
OLTS-85