DC 246A single channel switch is a low voltage Dry contact switch, so it's used for connecting to those curtain motors which have dry connect socket. 4 wiring terminal of Sub-control are connected to 4P4C Handset Plug, COM(Public line);UP(Open) and DOWN (Close) are connected to Pin1; Pin3 and Pin4 of plug respectively. Any home automation system that has dry contact output (ie low voltage relay capability) will work with this switch.
This switch is better to be installed on our DC68 Switch Flush box due to its size, so please purchase it separately.