LinkMap™

The LinkMap view presents a simplified view of measurement results by analyzing all the event table results for each pulse, whether using single or multiple pulse widths, and all test wavelengths. A span summary is displayed, in the form of a block diagram, for each test wavelength shown at the bottom of viewing window.

Tap each icon to obtain more information about that specific event on the fiber, as shown below. For example, event 4 represents a connector with excessive loss, which is common when connectors are not cleaned prior to mating or if they are damaged.

LinkMap showing connector with excessive loss

The link visibility can be significantly improved by using multiple pulse widths to provide better event details.

 

LinkMap symbols

The table below summarizes the symbols used to represent various events on the fiber link.

LinkMap Icon Descriptions

Icon	Description
	Span start (OTDR port) Indicates start of analysis section, as defined in setup.
	Fiber section
	End of Link/Span end Indicates start of analysis section), as defined in setup (distance or event index).
	Optical Connector/Physical contact (reflective event)
	Unknown Event - Distance Range or Dynamic Range inadequate to detect TRUE end.
	Blank Node
	Optical Connector - APC (Angled Polish) (reflective event)
	Splice (non-reflective event loss or gainer)
	Macrobend
	UPC connector
	WDM Network
	MUX-Generic
	MUX-DWDM
	PON Network
	Co-existence Filter
	Splitter - Balanced
	Splitter - Unbalanced/Asymmetric
	1xN Splitter (from OLT side)
	Tap - Generic with Drop
	Tap - Terminal (Terminated)
	End of Link (ONT detected; end user)