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,
- RXD+ connects to the GREEN reader wire
- RXD- connects to the WHITE reader wire
- GND connects to the BLACK reader wire
- 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.