Bus Transmitter for any tiped of wired sensor. VESTA-399 UIM-1-BUS Specifications The UIM-1-BUS is a universal interface module made for the connection of wired devices to the VESTA Hybrid Panel alarm system, andprovides it with power source. By directly integrating with the external device, the UIM-1-BUS allows the connected device to employ the inputs with the alarm, tamper and anti-masking signals. This product endows the devices without BUS terminals with convenience and flexibility, enhancing the versatility of the wired system. Enable alarm, tamper, and anti-masking signal reporting for wired device Enhance the versatility of the wired system.