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HP Forum Archive 19

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FSl164A hp-il/RS232 Interface Power Supply
Message #1 Posted by Andy Delano on 18 Oct 2009, 3:20 p.m.

I am trying to determine the voltage/polarity for the FSl164A's DC power supply. The FSl164A was produced by Firmware Specialists and is very similar to the HP82164a.

Thanks, Andy

      
Re: FSl164A hp-il/RS232 Interface Power Supply
Message #2 Posted by Garth Wilson on 18 Oct 2009, 3:54 p.m.,
in response to message #1 by Andy Delano

9VDC, center positive.

The FSI164A was almost 100% instruction-compatible with the HP unit, but came with two RS-232 channels standard, and optionally up to 8, had deeper buffers, and also had a battery power option. I do believe FSI had told me there was a bug with even parity, but I never used the parity.

            
Re: FSl164A hp-il/RS232 Interface Power Supply
Message #3 Posted by Andy Delano on 18 Oct 2009, 4:38 p.m.,
in response to message #2 by Garth Wilson

Thanks! Does yours have the battery option? Mine does not but I was thinking it might be something I could add.

Edited: 18 Oct 2009, 4:52 p.m.

                  
Re: FSl164A hp-il/RS232 Interface Power Supply
Message #4 Posted by Garth Wilson on 18 Oct 2009, 7:27 p.m.,
in response to message #3 by Andy Delano

I don't have the battery option, but since it has a DC input, it would be easy to have an external battery pack plugged in.

I think this was one of three different things with EPROMs in it that I refreshed recently and kept hex files on, since EPROMs don't hold their data indefinitely. I wanted to just read the EPROM into the programmer and then program it back before some of the contents were gone for good. I believe I also did it for my HP92198 80-column video interface and my 82169A HPIL-to-HPIB interface converter. I'd like to do it for the BIOS ROMS for my DOS PC too, but that's the PC the EPROM programmer works on.

                        
Re: FSl164A hp-il/RS232 Interface Power Supply
Message #5 Posted by Klaus on 19 Oct 2009, 2:30 a.m.,
in response to message #4 by Garth Wilson

Hi Garth, you can hot-plug the BIOS-EPROMS, remove them after the PC has booted, and reprogram them.

                              
Re: FSl164A hp-il/RS232 Interface Power Supply
Message #6 Posted by Marcus von Cube, Germany on 19 Oct 2009, 6:02 a.m.,
in response to message #5 by Klaus

Why not just read them (from DOS) in the PC and create a new set without risking a dead system?

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