... less than 13m, suggestion distance is 3m or lessRS485: bus line max length 1200m, suggestion length 1000m or less, if expansion ... : Depends on net coverage areaCollocationsPCB board, case, power, power line, serial port communication line, software, manual, certificate, key(2pcs), cartonAlarm for long ... GUI Interface: Ethernet FOUR Door Access control system Language Option French