RS-232 TO RS-485 CONVERTER Model / Part No :- ACON E-02 OPTICAL ISOLATION :- 1.5 KV INTERFACE :- RS232/ RS485- 2 Wire/ RS485- 4 wire. OPERATION:- MULTI-DROP FULL DUPLEX (RS485-4 W) MULTI-DROP HALF DUPLEX (RS485- 2 W) CONNECTOR:- FOR RS232 - DB9 FEMALE. FOR RS 485 – TERMINAL BLOCK. INDICATIONS :- POWER, TX, RX. POWER :- 24VDC INPUT SIDE RS232 CABLE CONNECTIONS: 9 PIN MALE(Converter side) 9 PIN FEMALE(RS 232 side)