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Cyberpower usb serial driver6/2/2023 ![]() It did have a USB pot which DOES support data transfer but there is no published protocol and home-brew interfacing to USB is a major job which is why I ruled out the other UPS’s. In fact pins 2 & 3 (the data pins) of the port are not connected to anything!! The only functions available from that port are on/off hardwired signals for “Load on battery” and “Load on line”, it had one input to shut down the unit, not very functional at all. Thinking I had found the perfect solution I ordered one and with great disappointment found it had a serial port that does NOT support serial data! CyberPower marketing their product as having a serial port was plain not accurate. ![]() Now CyberPower comes into the picture, it fit all my requirements AND had a neat display to add to the WOW factor (more on the display later). Of course APC and Tripp-lite were on top of the list but now they only have USB or dumb ports for connection plus cost was prohibitive. Must be low cost, 300w, rack mounted, have batteries that load into the front and have a serial port. This all started when I decided we needed a UPS to integrate into our products and searched with the following criteria.
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