APC UPS control system manual Configuration Directives Used to Set the UPS Eprom

SLAVE directives be put in your /etc/hosts file so that apcupsd will be able to resolve the machine name during startup and shutdown even if DNS is not running. Alternatively, you can use IP addresses on the MASTER and SLAVE directives, but this is less flexible.

USERMAGIC < user defined magic> used only in SLAVE config- uration files. The USERMAGIC directive is a sort of password that gives a second level of identification security in a slave configuration file. It is a character string up to 17 characters in length. It should be unique for each slave. When the slave makes initial contact with the master, this string is passed to the master. Then on each transmission from the master to the slave, the string is passed back to the slave, which checks that it is the correct string before accepting the master’s information. This string should be different for each and every slave on the network. This directive is not required.

Configuration Directives Used to Set the UPS EPROM

NOTE. THESE ARE DEPRECIATED AND NO LONGER WORK IN APCUPSD PLEASE USE APCTEST

The values specified with the following directives are only used if the --configure option is specified on the apcupsd command line, and the UPS is capable of internal EPROM programming. In that case, apcupsd attempts to set the values into the UPSes EPROM.

Under normal operations, the values for these parameters specified in the configuration file are not used. Instead, they are read from the UPS EPROM by apcupsd. See Configuration Directives Used to Set the UPS EPROM of this manual for further details before attempting to reprogram your EEP- ROM.

SENSITIVITY <sets sensitivity level> (H)igh, (M)edium, (L)ow

This value determine how sensitive the UPS is to the mains quality and voltage fluctuations. The more sensitive it is, the quicker the UPS will switch to battery power when the mains line quality is bad. Normally, this should be set to H, but if you find your UPS switching to batteries frequently, you might want to try a less sensitive setting, providing that your computer equipment tolerates the poor quality mains. This value is written to the UPS EPROM when the configure option is specified.

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