This is a follow-up to this previous thread. I'm continuing it here because this is the real implementing of the solution now that I know what the problem is. To recapitulate:
- My Epson Apex 100 has 1 built in parallel port and no built-in serial port. I want to use a mouse with this computer, but cannot use the parallel port.
- I bought an original IBM Async expansion card from eBay. This card adds a DB25 serial port. The card was "pulled from a working unit" but untested.
- I can't get the expansion card to work properly. This thread is addressing that problem.
- I put it in the Apex 100 and turned it on. The computer gives a series of beeps (long short short) and the screen displays nothing and stays that way.
- I think the problem is a conflict with assigning the primary and secondary serial ports via DIP switches. See attached pictures for the Async card. There are a few sets of jumpers, but only one jumper, J13, is the kind where you slide a small black block over the two tines. That jumper is currently open.
- The PDF manual I found online for an Epson Apex 100 unfortunately does not quite match my unit (see hyperlink). Pages A-1 through A-5 tell how to set the DIP switches.
- The manual says the first set of DIP switches is 8 switches they control the
- keyboard type, coprocessor type, RAM size, monitor and adaptor type, and number of diskette drives.
- The manual says the second set of DIP switches is 4 switches and they control the
- parallel ports and serial ports
- The manual says the first set of DIP switches is 8 switches they control the