The type configuration item determines how the gateway will connect to the thermostat interface hardware. Setting the type item to "device" will access a local special device file. Setting type to "net-address" will have the gateway access the hardware via the network. The net-port item must also be set for network access. It takes a decimal port number. Set the rrd item to 'true" or "false" if you want to enable round-robin database recording. The rrddir item is the directory where the round-robin databases will be stored.
This gateway will also process the osd.basic schema to display the alerts in the top screen of the thermostat.