Wiring for Brivo & Farpointe OSDP Readers

Wiring for Brivo & Farpointe OSDP Readers

Overview

Instead of using the READER 1/2 ports on the ACS-300, OSDP readers use the port labeled RS-485, located next to the READER 1 port. In the diagram, this is located in the top-right of the controller. However, your configuration may vary, so please verify the port by checking for the RS-485 label silkscreened onto the board, or a paper label with OSDP READER (or similar) applied by Latitude Security Solutions.

ACS-300 Diagram



Board & Reader Wiring Diagrams

Refer to the following diagrams for the connections between the reader and the ACS-300 controller.
For most OSDP devices sold by Latitude Security Solutions,
  1. RXD+ connects to the GREEN reader wire
  2. RXD- connects to the WHITE reader wire
  3. GND connects to the BLACK reader wire
  4. 12VDC connects to the RED reader wire
Please refer to the reader's documentation to confirm these connections.

RS-485 Port on the ACS-300 Controller

Common Reader Pigtail Configurations


Further Reading

For a more detailed installation guide for the entire ACS-300 / LS2-4A-AQL system, please refer to our install guide available here: https://support.latitudesecurity.com/portal/en/kb/articles/ls2-3a-alx-installation-guide
If you need additional support, please reach out to us at support@latitudesecurity.com or call us at +1 (866) 739-8588, ext 2 for support.


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