ROPAS-D Emergency Dispatch The CCU-D Central Control Unit (CCU-D) is used to Control the system via the push buttons on its front panel or through the system software running on a connected computer. The CCU-D communicates via radio frequency with all of the system's Remote Controllers (RCs). The RCs interface field devices to the Emergency Dispatch and Graphics Station (EDGS) and control outdoor speaker stations. Two-way communication between the EDGS and RCs ensures that you are informed of any changes in status that occur between interrogation periods. The time interval for interrogation is defined by the user. For critical alarms such as a low battery, a warning is immedieately reported back to the EDGS. >> SPEC SHEET Mass Notification ROPAS-D 117-1 thru 4 Real Time Voice And Siren System Model ROPAS-D 117-1 through 4 is provided in speaker head configurations up to 360º coverage. and prepackaged for 117dBc directional outdoor alerting service. Ropas-D Series Directional real time voice and siren system deliver clear voice and emergency messages. Consisting of Speaker Head assemblies, up to 360º coverage, real-time public address module, Nema 4 siren control cabinet, cabinet mounting bracket, controller, fifty (50) foot speaker cable, twenty (20) foot antenna cable, surge suppressor, tone generator, automatic gain control (for real time voice), built-in amplifiers, amplifier tray and battery charger (120/240vac). Battery fuse, and battery cables. >>SPEC SHEET