A RS-232 to RS-485 Interface Converter can extend the communication distance to 1200m at least. This interface converter from our website is made of copper and plastic, which is durable to use. At the same time, the communication of this interface converter is about 300-115200bps, which means good communication signals. It is a good choice for you. You cannot miss it.<!--Features --><p>FEATURES</p><UL><LI>There is no need for extra AC or PC power supply</LI><LI>It can be plugged into PC&acute;s corn ports directly</LI><LI>Compatible with EIA/TIA RS-232C standard and RS-485 standard</LI><LI>New and never been used</LI><LI>A good choice for you</LI></UL><!--Specifications --><p>Specifications</p><TABLE class=ke-zeroborder cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=131>Interface</TD><TD width=365>RS-232 to RS-485</TD></TR><TR><TD width=131>Material</TD><TD width=365>Plastic, Copper</TD></TR><TR><TD width=131>Dimensions</TD><TD width=365>(9.5 x 3.4 x 2)cm / (3.74 x 1.34 x 0.79)" (L x W x H)</TD></TR><TR><TD width=131>Transmission Media</TD><TD width=365>Twisted pair or shielded twisted pair</TD></TR><TR><TD>Communication Rate</TD><TD>300 - 115200 bps</TD></TR><TR><TD>Communication Distance</TD><TD>1200m (RS-485 port); 5m (RS-232 port);</TD></TR><TR><TD>Weight</TD><TD>68 g / 2.4 oz</TD></TR></TBODY></TABLE><!--Package Includes --><p>Package Includes</p><UL><LI>1 x RS-232 to RS-485 Interface Converter</LI><LI>1 x User Manual</LI></UL><!--Extra Info --><!--produts_compatibility -->