The intelligent boxed converter has been designed to convert RS232
signals from a PC or PLC to RS485. The advantage of using this
module is that all network timing on the 2 wire network is performed by
the module. Only three wires, the RX line, TX line and ground are
required. The intelligent converter also provides isolation between the
RS232 and RS485 cables. This prevents ground loops between the PC
or PLC and network.