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NT2-210018 Optical Spectrum
Analyzer User Guide
6176 E. Molloy Rd. East Syracuse, NY 13057 U.S.A. • [email protected] • 1-800-800-6652 • +1 315-431-7200 • www.ppc-online.com
A
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Optical Network
Solutions
Fig 9.2
Graph Information
dBm Scale
The dBm scale at the top of the page indicates -50 to 0 dBm when in low power mode and -30 to +20 dBm in high
power mode. This scale allows for a quick estimate of a channel's power. For a highly accurate indication of power,
use the “A” and “B” cursors.
Channel Scale
The Channel Scale displays the channel numbers that may be viewed. The scale is normally 1-88, but may be
changed if the first channel feature is used. The first channel setting eliminates the number of channels bypassed
from the total number, and shifts the scale accordingly. This scale is also modified when Zoom is selected. It shifts
the number of channels as selected with the zoom feature. If zoom was set to see only channels 51-60, it would only
display those 10 channels.
Channel Pass Zone
This green highlighted area of the display assists with quick evaluation of channels for pass/fail state. Set this scale
with the pass range setting under the General tab of the Settings Screen.
Cursor Data Information
Channel power, wavelength/frequency and the channel numbers for selected channels are displayed in the data
section at the bottom of the display.
“A” to “B” Cursor Relational Data
The bottom row of the data section indicates the deviation of power and wavelength/frequency between the “A”
and “B” cursors.
Total Power/Tilt Measurements
The total power or tilt information is displayed in the bottom right most cell of the OSA’s measurement table and
graph screen.
9.4 Viewing OSA Scans
Graph Display
