What voltage of surge protection should be used on inputs, outputs, readers and communications circuits?
Input circuits: minimum working/service voltage: 12 volts Output circuits (switching DC): minimum working/service voltage: 30 volts Reader data lines: minimum working/service voltage: 5 volts Reader power: minimum working/service voltage: as required by reader RS-232 communication: minimum working/service voltage: ±25 volts RS-485 communication: minimum working/service voltage: ±7 volts Ethernet (non PoE): minimum working/service voltage: 5 volts PoE: minimum working/service voltage: 60 volts
