... Data link : 1.433MHz 2.RS-232, RS-485, and TTL 3.transmission distance:5km-15km FY-605 Data link connectorFeatures ... Output/ Input InterfaceIt can provide RS-232, RS-485, and TTL.6. Power controlOne sleeping model: awaken from hardware7. Circuit StructureRadio ... 9600, 19200 and 38400bps. The wireless transmission speed and the connection baud rate are proportional, to satisfy the customer’s equipment ...