Data I/O Series 22 EPROM Programmer help

ed_sipols at goodyear.com wrote: if you have the data I/O poster or docs you are taking the data from, you may not have the same rom revision in your programmer. I don't recall how to verify what matched what anymore, but where I was at one time had a Data I/O subscription, and got quarterly updates. A lot of parts could be supported w/o adapter or base unit rom updates, but eventually we'd get parts on the newer posters that would not work till we finally did the update of the base unit. This still applies even when you have a model that has a bunch of sockets, since they just combined the equivlent to a unipack or multi headed unit into a more compact model but used the same roms internally. BTW I am speaking of the 29A 29B units, not the eprom units. Those were more specialized to doing eproms, and did not do bipolar parts, and also could program a lot of parts in parallel. The Eprom units, near as I could tell used a different code for setting up the programmer. I don't know of any resource that details what units were capable of what to direct you to, sad to say. Data I/O was never too forthcomming about the information even when we paid for it, and for a long time there was not alternative. Sort of like Microsoft is now. Anyone would use an alternative if they could, assuming that they are not tied to Microsoft for reasons not relevent to this list. I know a lot of people in the late 70's and 80's that would have used another programmer, but Data I/O had insides at the manufacturers that other prom programmer makers could not equal. I was amazed to find out that finally there were parts that were totally unwarranted by their manufacturers if other than Data I/O programmed them. We used different parts in that case, needless to say. sorry if ths didn t answer your question, hope it helped though. Jim