This range of signs is designed modularly, so yo ucan add or subtract as many elements as you like in a single Road condition sign structure. - the modules employ the use of our tri colour full graphic LED boards. These signs have been engineered to operate stand alone, meaning they are totally wireless, both power and data, the communications connection is handled by the Next G network, and the power is delivered by way of our innovative Solar inegrated supply system. The RCIS also employs the use of the J1 Gantry Controller and can operate off the J1 Protocol or the RTA Protocol and interfaces back to Streams.