... terms, it will convert any RS232 signal to a RS485 signal and vice versa. The unit is powered from the RS232 ... loopbackSpecification: Standards: EIA RS-232C, RS-485 standardRS-232 signal: TX, RX, GNDRS-485 signal: D+, D-, GNDWorking mode: Asynchronism, point ... loopbackSpecification: Standards: EIA RS-232C, RS-485 standardRS-232 signal: TX, RX, GNDRS-485 signal: D+, D-, GNDWorking mode: Asynchronism, ...