The DS1 Fractional Interfaces dialog box enables you to configure fractional interfaces on a DS1.
Right-click on a DSx port, then select Configure > DS1 Fractional Interfaces from the popup menu.
The following information appears:
Fractional Index (dsx1FracIndex)
The unique value that identifies the DS1 interface to which the selected fractional interface is applicable.
The channel number of the entry.
The unique value that identifies a fractional interface.