UniSite Programmer and modules
These units are frequently on eBay and do not work. They will tell you the Self-Test passes because the light stays on, WRONG!! If it does not go out there is a problem, either hardware or software. Without the 17 PinSite modules and no adapters installed the self-test is about 10 seconds. As you add PinSite modules the self-test takes longer. With all 17 modules plus the Site 48 and PinSite adapter the self-test takes about 5 minutes. If the unit does not have a hard disk then a floppy boot disk is required to complete the start-up and the self test light will go out. If the unit has a internal hard disk then the the self test light will go out if everything is working without a boot disk. I use a standard IBM PC 9 pin to 25 Pin serial cable to communicate with the UniSite.
Data I/O used two revisions of logic boards in
the UniSite series. The early revision, as present in programmers with revision
codes -001 through - 011, did not support the hard drive option and required the
memory expansion board to go beyond 1MB RAM. It is easily distinguished, in
terms of visual inspection, by the fact that it does not have a pair of 30-pin
SIMM sockets in the left front quadrant ('front' referenced to the front of the
programmer, or close to the big 60-pin expansion connector if you're just
looking at the board).
If you have to
go searching for memory, check at computer surplus places as well as on eBay, they
do still turn up. You should attempt to get the types of SIMMs which use nine
discrete chips, as opposed to the three-chip models, something to
do with refresh timing. Check with me I probably have them in my stash of old
NOTE: UniSite manual page 2-20 has a listing of LED conditions and their results. Once again if the self test does not turn off the unit is defective and possibly the OS!!
Check this link for additional information
If downloading a UniSite manual I would recommend the XPi version although larger it is more complete. There is very little difference between the the standard UniSite and the XPi version. The only real difference is a version 014 or later board, MSM and a parallel port all other functions are the same.
Please see the last 2 PDF files they will explain how to add a parallel port to your UniSite if it has an MSM module (hard disk). These files plus much of the above information was provided by a UniSite user and more of an expert than I am.