The Functional Devices RIBTW2401B-BC is a high-performance BACnet MS/TP network relay designed for seamless integration into building automation systems (BAS). This 24/120V SPDT I/O controller enables contractors to add control points without the overhead of a dedicated multi-output controller. It features one 20 Amp SPDT relay output and one binary dry contact input, allowing for efficient communication of field conditions—relying on a 16-inch 600V rated wire lead for robust electrical connections. The unit is housed in a NEMA 1 plenum-rated enclosure, making it suitable for versatile mounting in commercial HVACR environments. With a 10 million cycle mechanical life and DIP switch selectable baud rates ranging from 9600 to 115200, this enclosed relay in a box provides a reliable, software-implemented network interface. The integrated LED indicators provide real-time network communication and relay status diagnostic feedback, ensuring rapid troubleshooting during commissioning. Key Benefits BACnet MS/TP Integration: Facilitates direct communication between network clients and field-level monitoring points. Versatile Power Options: Operates on 24 Vac/dc or 120 Vac power inputs to accommodate standard building voltages. High Current Capacity: Features 20 Amp resistive contacts, capable of handling heavy motor and lighting loads. Enhanced Diagnostics: Dual LED indicators for network and relay status allow for immediate verification of command execution. Compact Enclosure: NEMA 1 housing with a 1/2" NPT nipple simplifies mounting to electrical junctions. Common Questions How do I set the network address and baud rate? The MS/TP address and baud rate must be configured manually via the internal DIP switches before the device is powered up. Can the binary input be used to monitor local switch status? Yes, the dry contact binary input is a separate object that can communicate the status of a current switch or other feedback device back to the BACnet network. Is this device suitable for plenum installations? The unit is UL listed and features a plenum-rated housing, meeting safety codes for installation within air-handling spaces. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
