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   TCI-1   TCI-6   TCI-20   SST 3500/3000   Form Four   DET-6B   DET-6C   EDS-1   1221 Radio   Outputs   CGRMS   System 4000   System 3505C System 4000DL CCTV Desplex®		This interface provides a single telegraph input to the System 3505/3500/3000. The alarm interface card allows the user to switch select the desired input signal (100 Ma or 24 VDC). Once installed, precludes TCI-6 or 20.