14
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
BELDEN
BRAND
Optical Network
Solutions
Touch anywhere on the display or press the Select button to remove the power level indicator from the display.
Warm-up
There is a warm-up stage for the NT2-210018. The yellow indicator in the bottom right corner of the display
indicates the unit is in warm-up mode. When the indicator turns red the unit is ready to scan and a green indicator
shows the unit is scanning.
9.2 Connecting Fiber
It is suggested that a test cable be used between the fiber under test and the NT2-210018. This reference fiber
should be approximately one meter in length and have minimal loss. The reference cable should be only be
removed from the unit when necessary. Limiting removal and termination of connectors to the unit will extend the
lifespan of the connector, eliminating down time and costly repairs. Only UPC connectors should be used with the
NT2-210018.
Caution
The NT2-210018 has two ports: a low power and high power port. The low power port is designed for
maximum power of -10dBm per channel and a maximum composite power of +22dBm. The high power
port is designed for a maximum of +10dBm per channel and a maximum composite power of +29dBm.
If you are unsure of the power level, it is best to start in high power mode. For more information, please refer
to the Power Level paragraph in this section of the user guide.
Caution
Fiber optic connectors are easily contaminated or damaged. The connection to the NT2-210018 is a
physical contact type of connection and dirty or damaged connectors may impair the instrument's
capabilities at minimum and, at worst, result in the need to return the NT2-210018 to the factory for
expensive repairs. Prior to making any connection to the unit, ensure that all proper cleaning procedures
have been followed. Use UPC Finish Connectors Only!
9.3 Taking Scans
Scanning
There is a short warm-up period for the NT2-210018. This is indicated by the scan indicator in the bottom right of
the display. Yellow is warming up, red is ready to scan and green is scanning.
Once all the parameters have been set, the Scan button may be pressed or the scan indicator may be used on the
touchscreen to start a scan. Pressing the Scan button or touching the Scan Indicator a second time will stop
the scan.
AutoTest
The Auto Test button automatically zooms to active channels. This is the first channel starting from channel 1 that
is higher than -45dBm in low power mode (-25dBm in high power mode) and setting that as the first channel in
the visible range, then starting from the last channel and working backward to find the last channel that meets the
same criteria and setting it as the last channel in the visible range. This button does not start a scan, but focuses
on the channels as described above on recalled scans or active scans. This button toggles this feature on and off,
and sets the span for any scan to follow, until it is pressed a second time. Stored scans will not take the Auto Test
settings from another stored scan, but the setting from a stored scan can be uses on new scans.
Using Stored Configurations
Test configurations are stored in the File Management screen. To use a stored configurations, pull up the Icon menu
and select the File Management icon. Touch the Config tab; from the file list, highlight the desired configuration
and press select on the keypad or touch the configuration name while highlighted. Scans will now use the
established parameters from the active configuration.