[Motorola] Local remote connections

[Jeff]

I have a Motorola series 90 local remote control unit. Model number T1903CA.  I would like to connect it to an R-100 repeater. I have the info for the R-100.  The remote unit has 10 screw terminals on the bottom and some are marked for their funtion.  However terminals 3, 8, 9, and 10 are not marked for their funtion.  Does anyone have a schematic to share, or know what the funtions of terminals 3, 8, 9, and 10 on the remote unit are? Thanks