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Showing results for tags 'usb rs232'.
I'm having difficulty communicating with a Tripp-Lite UPS via serial RS-232. One variable I need to rule out is the USB to RS-232 adapter cables I'm using. I seem to remember there being some chip sets that didn't work well so I thought I'd ask the group. I've tried two different cables. The SABRENT Model CB-FTDI using the FTDI chipset and the UGreen using the Prolific PL2303 chipset. Does anyone have any experience with these cables? Any cables/chipsets you have used before without problems? I'm heading down this path because when I send a command that should ask the unit