Master (Computer based control system) to 7 Slaves (data collectors/sensors); Master (Computer based control system) to 7 Slaves (data collectors/sensors); Easy cable replacement of original RS-232 or RS-485; High speed data transmission with options of 2.4, 4.8, 9.6, 19.2, 38.4, 57.6, 115.2kbps; Good RF coverage for reliable communication with options of either embedded or external antenna, ...