Alarm relay output (general features for “Slave” panel)Digital inputs (general features) Voltage-free contact. Max resistance 100 Ω; max 5 Vdc open, 7 mA closedAnalogue outputs (general features for “Master” panel) 0 to 5V, 0 to 10V Maximum load 2 kΩ (5 mA) Precision ±3 % of full scale