Choose One System 3505 CGRMS System 4000 System 3505H System 3505C System 4000DL CCTV

System 3505   Network   Multiplex   Q-Mux   DDI-9E   Direct-Wire Inputs   Telegraph   1221 Radio   RAD-211   RAD-8LS/16LS     RAD-32/64   Mark VI Receiver   Outputs   CGRMS   System 4000   System 3505C System 4000DL CCTV Desplex®		A rack-mounted unit for reception from 1221 AM radio alarm boxes. Converts analog radio signals to digital via ribbon cable to the System 3505/3500/3000, or may be used as a multiplex interface. Using Digitize multiplex the Mark VI receiver may be remoted via RS-485, RS-232, Fiber, Audio modem, or radio polling. The Mark VI is synthesized (programmable) in the 72-76 MHz range. Requires 115v AC. Includes built-in 12v battery and charger, built-in s-meter and speaker with volume and squelch control. The connection to the Mark VI is supervised at the System 3505/3500/3000.