Here is the link to the long old UHU thread.
It has more then 2100 messages about the UHU in one big thread.
With lots of info.
http://www.cnczone.com/forums/showthread.php?t=14217

Please post new messages to the new UHU Servo Controller Forum here at cnczone
http://www.cnczone.com/forums/forumdisplay.php?f=411

Vroemm