CNC Project Needs Help: Slo-Syn Translator

I have an older Slo-Syn Translator, Model ST101A with no manual and
need help getting it to drive a SLO-SYN stepper motor. The unit is a
rack mount box with only a power switch, speed control pot, and a +/-
switch (which I take to be a forward/reverse switch) on the front
panel, and 10 screw terminals on back, labeled as follows. Can
anyone clear up how to use these terminal assignments?

1 - RUN 1
2 - PU OUT
3 - CW PU
4 - CCW PU
5 - VO
6 - M1
7 - M3
8 - M4
9 - M5
10- +24V