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 up to six telegraph inputs to the System 3505/3500/3000. Optional PCB's (shown at top) configure the inputs to 100 Ma, 24 VDC, N.O. or N.C. Once installed, precludes TCI-1 or TCI-20.