RTS Radio Controlled Motor Options:
Singles Channel RTS Interface (6300454 / 1810483)
Accepts dry contacts only (from the automation system) Can control one motor or one group of motors.
Five Channel RTS Interface (6300554 / 1810506) Accepts dry contacts, infrared signals or RS232 computer language
Can control up to five motors individually or as a group or five groups of motors individually.

Standard 4 wire Motor Options:
IGC Single (6300717 / 1810522)
Accepts dry contacts or RS232 (requires one Somfy RS232 [6300232] module per motor or Group)
Can control one motor and can be chained together with other IGC controllers to make larger groups.
IGC 3N1 (6300719 / 181523) Accepts dry contacts or RS232 (requires one Somfy RS232 [6300232] module per motor or
group)
Can control up to three motors as a group or individually and can be chained together with other 3N1 controllers to make larger groups.
GCS II (6300123 / 1810476)
Accepts dry contacts Can control up to four motors as a group and can be chained together with other GCS controllers to make larger groups.

Multi-link (6301992 / 1822184)
Accepts dry contact, infrared signals or RS232 (requires one Somfy RS232 [6301232] module
for up to ninety nine motors) Controls one motor individually and can be chained together with other multi-links to make larger groups.