... tail; interlocking;multi-card unlocking; emergency double locking; in door population checking; unlocking based on internal and external validation. ... Parameter List Parameter Single Access Control BoardTwo-door Access Control Board Four-Door Access Control BoardModel # NS-M100 NS-E100 ... , the distance could be 3000m TCP/IP: Depends on net coverage area Collocations PCB board, case, power, power line ...