My 264X manual says a 13232B cable (p/n 02640-60058) connects a 13260A async interface in a 264X terminal to an HP 12531D or an HP 12880A computer interface. The 30 conductor card edge connector for the 264X terminal side should be easy to obtain. I think EDAC part 305-030-500-202 would work, approx $2.50 at DigiKey.com. For the 12531 side you need a 48 conductor card edge connector. I think EDAC part 305-048-500-202 would work, but I don't know where you can order that part without a large minimum order. Here's the 13232B cable wiring scheme from my 264X manual. Some day I should scan the picture... 264X Terminal 12531D Interface 13260A Interface 12880A Interface Data Out B --> X Data Out Data In C <-- W Data In CB E <-- U +12 VDC Ground H <-> 24 Ground CF J X8 Clock Out K --> L X8 Clock Out E,J connected D,4,Y connected T,16,V connected _________________________________________________________________ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail