To help the discussion, here are the options from my side in increasingly rare order:
* IR: Both the 4-wire control box and Somfy motors can be IR controlled, and with receivers included in your macros. The Gen4 even has several different types of IR receivers. Tying an IR receiver to an IR repeater is easy.
* Dry contact: There are dry contact inputs on the 4-wire control box and the Somfy wall switch. They look for momentary contact, <0.5 seconds, that can be provided via relay closure.
* Gen4 special order product: We have a Z-Wave version of the control box, or can order interfaces for Ethernet, RS-232, or RS-422 using Serial ASCII strings.
* Somfy special order product: In addition, the Somfy motor can be controlled by adding one of their pricey interfaces. This can get you into RS-485, RS-232, Ethernet, or Wi-Fi control.