Spec Sheet Preview: The CB901EX is a fully electronic, microprocessor controlled system, which fully satisfies the requirements for a modern and effective internal communication system. The CB901EX system is modular in concept and the central exchange can be expanded in multiples of 8 stations, up to a maximum of 240 total stations (masters and/or remotes). The central exchange has a minimum of 15 conversation paths (links), permitting up to (15) simultaneous conversations. More links can be added as an optional upgrade and multiple central exchanges can be linked& …