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The MLS Digital Universal Bus Transceiver expands the scope of the LMS's MLS Digital by enabling otherwise uncontrolled lighting and non-lighting loads to be brought into the system.

UBTs also allow external devices to provide inputs into the system. Two versions are available: either boxed enclosure (K4640) or DIN Rail mounted (K4641).

Universal Bus Transceivers are programmed to respond to signals from the MLS Digital Bus as part of a Zone, Common Zone and/or Building Zone and operate in the same way as all MLS Digital Detectors:

Transmitting signals to the MLS Bus - following an external signal
Receiving signals from the MLS Bus - to give an external output

A single UBT can perform both these functions simultaneously.