There's a manual that looks close here: http://www.spies.com/~aek/pdf/dec/pdp11/ (look for the KXT11-UG). If that's not the one you need, I have a scan of EK-SCB02-UG-001 SBC-11/21 PLUS Single-Board Computer User's Guide. Let me know if you need that and we'll work out some way of getting it to you electronically (it's probably quite big so email won't work). Antonio -- --------------- Antonio Carlini arcarlini(a)iee.org