Description :

Interface Machine Automation 9 PIN RS-232 to RS-485 Bi-directional Converter

Specifications :
 

RS-232 to RS-485 turn， able to convert the RS-232 serial port TXD and RXD signals into two balanced half-duplex RS-485 signals.
No external power supply directly from the 3-pin RS-232 port of stealing，
while the 7-pin request to send (RTS)， 4-pin Data Terminal Ready (DTR) to RS-232 to RS-485 auxiliary power supply，
automatic flow control so you do not reset，hardware and software installation is very simple to use.

Package Included :

1 x RS232 To RS485  Bi-directional Converter

Details pictures :