Re: Urgent reply is needed
Do you really need full duplex?
The right sollution is using RS-422, not RS-485.
If you need full duplex, and still want to use RS-485. You must buy two additional RS-232 RS485 converters. And use the Transmit RS232 Pin from one of port in one of converter and, in the other side the converter connected to it use the RX pin of RS232. The others two RS485 converters, must use the opposite pins. So, if the first RS232 port use the TX pin, for the second converter must use the RX pin, and in the other side of wire, must be putted the TX pin of the other RS232