The routing module from top to bottom:
Module rows 1 and 2 bypass controls
Module rows 1 and 2 insert controls
Buss 1-8 Assigns
LR Buss assign
Stereo Aux 1 control with pre/post switch
Stereo Aux 2 control with pre/post switch
Pan control with pan defeat
Unity switch that bypasses fader for a
locked unity gain setting
Fixed level pad switch
Phase reverse switch
Mute Switch
Solo Switch
100mm Fader

The rear of the unit has
XLR inputs 1-8 with linked db25
Row 1 Insert Send and Return. DB25 Balanced
Row 2 Insert Send and Return. DB25 Balanced
Direct outputs. DB25 Balanced Line Level
Buss Outputs. DB25 Balanced Line level
Aux/Solo Outputs. DB25 Balanced Line Level
LR Main Output. XLR

Power is provided by a beefy external power supply with phantom power.