On July 8, 2020 11:39:29 AM EDT, Valeri Galtsev <galtsev at kicp.uchicago.edu> wrote: > > >On 2020-07-08 10:23, Leroy Tennison wrote: >> I've used one on a Linux laptop, it "just worked" but the OS wasn't >CentOS 7. >> > >It is not clear if you used USB from APC UPS to USB port on the machine > >side or USB - to - "serial". USB to USB with standard USB cable will >work. > >If one uses serial to USB adapter on the machine side (to create serial > >port through USB on the machine), then one _has_to_use_ APC cable: as >John Pierce just said, it is APC special cable which though has serial >connectors on both sides of cable, (and uses serial protocol of >communication - this is already what I am saying), it does not resemble > >neither serial nor null-modem cables. > >Valeri > >> ________________________________ >> From: CentOS <centos-bounces at centos.org> on behalf of H ><agents at meddatainc.com> >> Sent: Wednesday, July 8, 2020 10:13 AM >> To: Centos Mailing List <centos at centos.org> >> Subject: [EXTERNAL] [CentOS] USB-serial adapter for CentOS 7 >> >> CAUTION: This email originated from outside of the organization. Do >not click links or open attachments unless you recognize the sender and >know the content is safe. >> >> >> I need to connect an older APS UPS unit to a machine running CentOS >7. Unfortunately the UPS only has a serial port whereas the computer >does not. I am aware that there are USB-serial adapters but that the >hardware or the drivers might fall short of expectations. >> >> Does anyone have positive experience with such an adapter? Or, >conversely, would recommend avoid a particular adapter? >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> >> Harriscomputer >> >> Leroy Tennison >> Network Information/Cyber Security Specialist >> E: leroy at datavoiceint.com >> >> >> >[cid:Data-Voice-International-LOGO_aa3d1c6e-5cfb-451f-ba2c-af8059e69609.PNG] >> >> >> 2220 Bush Dr >> McKinney, Texas >> 75070 >> www.datavoiceint.com<http://www..com> >> >> >> This message has been sent on behalf of a company that is part of the >Harris Operating Group of Constellation Software Inc. >> >> If you prefer not to be contacted by Harris Operating Group please >notify us<http://subscribe.harriscomputer.com/>. >> >> >> >> This message is intended exclusively for the individual or entity to >which it is addressed. This communication may contain information that >is proprietary, privileged or confidential or otherwise legally exempt >from disclosure. If you are not the named addressee, you are not >authorized to read, print, retain, copy or disseminate this message or >any part of it. If you have received this message in error, please >notify the sender immediately by e-mail and delete all copies of the >message. >> >> >> >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> I believe I mentioned that the UPS has the serial port, the computer thus has USB.