This option causes the Maya FBX Plug-in to export selected objects without automatically exporting all related input connections. In Maya, when you do an export selection to FBX, the Input Connections option appears in the Maya FBX Exporter.
If this option is disabled, no input connections associated with the selected object are exported during the export selection operation. If the option is active, however, all associated input connections to the selected object are exported.
This option is active by default, so the Maya FBX Plug-in includes any objects that influence the selected ones.