1).available expansion module,AC 110~240V, 2) .12 points digital input,6 points relays (10A)output,2 rounts(99KHZ) Description:Power supplyRated voltage: AC 100-240VAC220V consumption: 3WMain voltage operation range: AC85-256VAllowable main frequency: 47-63HzDigital input:12 points inputSignal 0: AC 0-40V Signal 1: AC79-240V Input current: < 0.03mA Input current: >0.08mAHigh-speed counting: IB, ...