The company's Model 5104 is a six-zone fire control communicator that provides digital fire and reporting over ordinary telephone lines, thus eliminating the need for costly leased lines. The 5104 can be used as a standalone system or incorporated into an existing system. The unit is UL 864 listed for NFPA 72 Central Station and Remote Supervising Station Fire Alarm System Service, FM approved, and has six fully supervised inputs.