Ethernet Modem

[email protected] · Joined: 16 May 2006 Posts: 39

I have a RS232 device that need to send the data via lan to a pc in the same lan. A program is running on the pc as a server that listern to a specific port.

Is there any existing (low price) hardware that can hook up my device and get an DHCP ip when power up and connect to the lan pc? If not is there any resource I can refer to build my own circuit?

Thanks

Ttelmah · Guest

Do a search for RS232 over ethernet.
Many hundreds of products, from companies like Perle. Their IOLAN-DS1 can be setup to offer what you are describing. Most are more expensive than you may think (industrial devices...).
There are two basic types, one offers a driver giving a virtual serial port on the PC, and 'hiding' the lan from you (this is the 'TS' setup on the above), while the other offers a TCP based connection (this unit can be setup this way as well). Which is best will depend on your PC software.
A PIC, with ethernet, could be setup to do this fairly easily, _but_ the cost of development, would be significantly more than the cost of the off the shelf solution...

Best Wishes

treitmey · Joined: 23 Jan 2004 Posts: 1094 Location: Appleton,WI USA

The biggest name I know is lantronix
http://www.lantronix.com/device-networking/embedded-device-servers/matchport-bg-pro.html
xport is the cheapest, but i don't know if it does dhcp.
about $50
http://www.mouser.com/Search/ProductDetail.aspx?qs=6olcXJbp99RFfLP0EAxZvw%3d%3d