Johnson Controls FX-PCX3721-0 Facility Explorer Expansion Input/Output Module [Refurbished]

The FX-PCX3721 Expansion Input/Output (I/O) Module is a part of the Facility Explorer?« FX-PC Series Programmable Controller family. FX-PCXs expand the number of input/output points connected to an FX-PCA, FX-PCG, or FX-PCV programmable controller or to a supervisory controller, to monitor and control a wide variety of HVAC equipment. FX-PCX expansion modules operate on an RS-485 BACnet?« MS/TP Bus and integrate into Johnson Controls?« and third-party BACnet systems.. Johnson Controls. Johnson Controls. FX-PCX3721-0.