OTR 700 User's Guide Rev02 11/2016
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Set the Wavelengths
On the main trace screen in the OTDR tab the wavelength settings are accessible. There are wavelength
settings available here that are not in the parameters setting screen. Dual wavelength OTDRs will have
one extra setting of a combination of the two wavelengths. For example, if the OTDR is a 1310/1550nm dual
wavelength unit, there will be three available selection here. 1310, 1550, and 13/15. The 13/15 is used for
constructions mode. This needs to be selected anytime construction mode is to be used. Quad wavelength
units will have 850, 1300, 1310, 1550, 85/13 and 13/15, where either 85/13 or 13/15 may be use for construction
mode testing. Use the touch screen to cycle through these wavelength settings.
Start A Test
To start the test connect the fiber to be tested to the proper OTDR port and press the scan button.
The OTDR will test the fiber at the shorter wavelength, display the trace and save the file. It will then test the
fiber the longer wavelength, The longer wavelength will become the primary trace and the two test will be
displayed in dual trace mode.
When the test is complete for the first fiber, remove the connector from the OTDR, connect the next fiber to be
tested and press the scan button. Continue until all test are complete.
Note
Macrobend tests are automatically conduct with construction mode. Simply enter the Events tab on the
OTDR screen or open the event analysis screen through the icon menu. For information about
marobend analysis, please refer to section 8.12 of this guide.
Exiting Construction Mode
To exit construction mode, set the wavelength on the trace screen to a single wavelength and start a scan.
Chapter 8 OTDR Operation
