I had a quick squint at a NECO 692/693 manual today and I can give you a wiring list for the 100 RFB.
The 101 is going to be electrically identical to the 100 as far as the connections to the Drive Unit are concerned. The only difference is that the 101 is a twin potentiometer unit (a 500 ohm pot for the drive unit - and probably around 200 ohm pot for the external rudder indicator gauge)
If Navitron can send you the manual Please let everyone know - because I swear that I have seen the same photocopy from the North of Scotland to the South of France (they all have the same missing pages)