Date: Fri, 12 Dec 2003 16:45:13 -0500 From: Barry Skidmore <skidmore@worldvenue.org> To: FreeBSD Mailing List <FreeBSD-questions@FreeBSD.ORG> Subject: Serial Port /dev for apcupsd Message-ID: <1071265513.770.9.camel@worldvenue.org>
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I am purchasing a APC Smart-UPS 420VA (with serial interface) for use
with apcupsd PORTVERSION=3.10.6 on a 5.1-RELEASE system, and have a
question about the correct /dev to specify in apcupsd.conf. My machine
has one, standard serial port.
>From the Handbook, there appear to be two options, both of which exist
in /dev.
>From the Handbook:
* Call-in ports are named /dev/ttydN where N is the port number,
starting from zero. Generally, you use the call-in port for
terminals. Call-in ports require that the serial line assert the
data carrier detect (DCD) signal to work correctly.
* Call-out ports are named /dev/cuaaN. You usually do not use the
call-out port for terminals, just for modems. You may use the
call-out port if the serial cable or the terminal does not
support the carrier detect signal.
Which is the correct /dev to use in apcupsd.conf?
Thanks,
Barry
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