Slave relay expansion board with 8 relays (requires a SIOUX-CARD-8M) Modelo: SIOUX-CARD-8S Master board with 8 dry contacts (4 overall status + 4 zones). Expandable up to 20 zone dry contacts (+ 4 overall status). Master board with 8 dry contacts (4 overall status + 4 zones) via RS-485 up to 1,2 km. Note: To reach the maximum expansion of 20 dry contacts (20 zones) it’s necessary to add 2 SIOUX-CARD-8S.
