Hello again! I'm yet again the guy from the blazer_usb problem and the ATCL one too. This time I have a third UPS (the last one In my collection) that i'm trying to make work instead of the ATCL one since there's no driver for it on windows.
This UPS is another no-brand box (actually it is a "kozumi", but that's just a rebrand), and apparently it's much more basic than the others. It has only an RS232 port on the back, and I need help finding out what interface it uses. The chips inside are just voltage comparators and doesn't seem to have a proper "serial" data interface, it only has a small board containing a pair of opto couplers going to the DB9 plug. You can see pictures of the output board here (onedrive): http://1drv.ms/1A3ryEp http://1drv.ms/1A3ryEp The only pins used seems to be 2, 4 and 5. ¿Is it a RUPS interface? ¿What cable pinout do I need to build? Thanks!!!
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