The JACE expansion dual port RS-485 module is a type of expansion module designed for the JACE8000 & JACE9000 Niagara controller. It allows you to add two additional RS-485 ports to the controller, providing more flexibility and scalability for your automation system.

This module is compatible with the JACE8000 and JACE9000 series controllers and is suitable for various applications, including industrial automation, building automation, and smart buildings. The module’s dual RS-485 ports enable you to connect multiple devices, such as FCU’s, energy meters, inverter drives and other controllers to the JACE.

The module is designed to provide reliable and secure communication between devices, and it supports various communication protocols, including BACnet, Modbus, and others. It also supports both master and slave modes, allowing you to configure the module to suit your specific application requirements.

Overall, the JACE expansion dual port RS-485 module is a valuable addition to the JACE controller, providing increased flexibility and scalability for your integrated building management system.