To prepare for the next time that our glass room overheats, we want to run a script that automatically shuts off the ups anytime the temperature rises above a certain level. We already have the temperature monitor set up, so now we just need to figure out what to do to send the ups the signal to shut itself off.
I’ve installed the apcupsd program on one of our computers and connected it to its ups with the provided serial cable. I’m guessing that I don’t really need apcupsd running, but for now I have it. The rpm I had complained that it wouldn’t install without libcrypto.so.4 and libnetsnmp.so.5. We have libcrypto.so.6 and libnetsnmp.so.10 installed. So I just made links from these newer libraries to the older names.
cd /lib ln -s libcrypto.so.6 libcrypto.so.4 cd /usr/lib ln -s libnetsnmp.so.10 libnetsnmp.so.5
I removed the apcupsd program because I didn’t need it.
With the ups connected to the serial port, I can use kermit to talk to it.
kermit
c-kermit> set line /dev/ttyS0
c-kermit> set speed 2400
c-kermit> c