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The BTM-PCB is an interface to KNX bus with a integrated TP-UART 2 device  (works in Normal mode) The BTI-Interface offers two voltages (DC 5V, DC 20V) The UART-Interface on the BTI works with 19.2kBaud in asynchronus mode, 2-wire protocol (TxD, RxD) with software handshake and buffering of sent frames. Signalization of bus voltage break-down via SAVE and Reset-Signal of TP-UART are available.

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