SEB-722: Remote I/O Door Expansion Board

This device expands the Input and Output capabilities of the SDC-550 Multiple Door Controller and the SDC-520 Ethernet Controller. It also adds the ability to move the inputs and outputs closer to the door should the controller be mounted far enough away to cause a significant voltage drop. It has 3 different reader configurations:

2 Wiegand readers and 2 RS-485 card readers attached as slave devices
1 Wiegand reader and 3 RS-485 card readers attached as slave devices
4 RS-485 card readers attached as slave devices
The SEB-722: Remote I/O Door Expansion Board also has 2 relay outputs (potential free contact/powered output) and 4 programmable digital inputs.

Quickstart guide SEB-722

Key Features

  • Extends the capabilities of the SDC-550 Multiple Door Controller and the SDC-520 Ethernet Controller.
  • 2 relay outputs (either powered or potential free contacts).
  • 4 Programmable digital inputs.
  • 2 Wiegand reader input.
  • RS-485 connection for up to 4 SSR-201 Proximity Readers.
  • In-circuit programming for easy product updates.
  • Rotary coded address switch for easy addressing.

If you require any further information, please contact our sales department.