[Nut-upsuser] APC SC 450 serial connection

Philippe LeCavalier support at plecavalier.com
Fri Apr 22 13:55:20 BST 2022

In a strange turn of events o ended up checking the com port bios settings
and switching from "enabled" to "automatic" made everything work. At that
point I had purged all of nut and installed apcupsd which is also where the
'dumb' type came from. Since it's working I didn't bother going back to nut.

On Fri, Apr 22, 2022, 06:00 Jim Klimov <jimklimov+nut at gmail.com> wrote:

> I don't see any mention of a "dumb" driver in sources, so first please
> check you've got a useful driver name there.
> Also you may have to chown/chmod the devfs sockets to let your packaged
> run-time user/group accounts for NUT daemons access them.
> On Thu, Apr 21, 2022, 18:47 Philippe LeCavalier via Nut-upsuser <
> nut-upsuser at alioth-lists.debian.net> wrote:
>> I'm trying to connect my debian box to an apc smart-ups SC 450 with
>> serial port only. The debian box has a serial male port. I' got nut-server
>> and client installed put dumb as the driver.
>> Debian 10.7
>> nut-server 2.7.4-8
>>         driver = dumb
>>         port = /dev/ttyS0
>>         cable = 940-0024E
>> 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
>> I also bought a cable with a FTDI chip which Debian sees as ttyUSB0 but
>> that isn't working either.
>> All I ever get is Driver not connected.
>> Thanks, Phil
>> _______________________________________________
>> Nut-upsuser mailing list
>> Nut-upsuser at alioth-lists.debian.net
>> https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsuser
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