... :Prompt delviery time 5:IStandard: RS-232 RS-485 RS485/232 ConvertorG485 Armored Door LoopIStandard: EIA RS-232, RS-485 Communication Distance:≤1200m Baud Humidity: 0 ... enjoy a three-year warranty services, Access Control Panel ,electric bolt and electric strike are 2 years, exit button, bracket , and power ...