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Interface converterRS232 – RS485This interface converter permits bi-directional connection of RS232 devices (laptop or PDA) withbus-compatible devices (electronic commutation units with RS485 interface). The power supply isfrom the RS232 output of the laptop or PDA.Nominal dataType 21495-2-0174Dimensions mm 73 x 37 x 19Power supply VDC 7–12**Otherwise via RS232 DTR, TxD and RTS signalOperating modeStatus displayHousingTerminalTerminating resistorDelivery scopeRS485, 2-wire mode with echo and automatic controlVia LEDs– PWR: Power supply– TXD: Data transfer (send)– RXD: Data transfer (receive)Plastic housingScrew terminal, TRX+ = RSA, TRX– = RSBBuilt-in, activated via switch– Interface converter– English-language operating manual14