X10
From:     https://zoneminder.readthedocs.io/en/late st/userguide/options/options_x10.html





Options - X10
    

OPT_X10 - If you have an X10 Home Automation setup in your home you can use
ZoneMinder to initiate or react to X10 signals if your computer has the
appropriate interface controller. This option indicates whether X10 options
will be available in the browser client.

X10_DEVICE - If you have an X10 controller device (e.g. XM10U) connected to
your computer this option details which port it is connected on, the
default
of /dev/ttyS0 maps to serial or com port 1.

X10_HOUSE_CODE - X10 devices are grouped together by identifying them as
all
belonging to one House Code. This option details what that is. It should be
a single letter between A and P.

X10_DB_RELOAD_INTERVAL - The zmx10 daemon periodically checks the database
to find out what X10 events trigger, or result from, alarms. This option
determines how frequently this check occurs, unless you change this area
frequently this can be a fairly large value.