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CDVI – 2-Door Expansion Module with metal box: 11”x11”x3”

Expand your Centaur system with the CA-A470-A. Centaur’s E-Bus technology allows any expansion module to be located up to 1220m (4000ft) away from the CT-V900-A, thus reducing field-wiring costs by running only one cable to the CT-V900-A. Reader, Keypad, Door Contact, REX device and Reader Outputs can be connected locally to the CA-A470-A by installing the expansion module close to the doors.



  • 2 readers and/or keypads
  • 2 lock outputs
  • 4 Inputs (door contacts and REX devices)
  • Adds 2 doors to the CT-V900-A
  • Up to three CA-A470-A modules per CT-V900-A
  • 6 reader outputs (Red/Green LEDs, Buzzer)
  • E-Bus connectivity to the CT-V900-A up to 1220m (4000ft)
  • Supports Wiegand, Magnetic Stripe Track II ABA, BCD keypad formats
  • Auxiliary current: 500mA
  • Power: 16VAC (40VA)
  • Battery backup (Not included): 12VDC (7Ah recommended)
  • Comprehensive LED status indicators


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