I'm looking for a simple gadget that can connect two RS232 ports
to an ethernet. I have a pair of solar grid-tie inverters in an
under-the-house utility room. I have ethernet down there but no
computers nearby and I would like to hook the RS232 monitoring
ports to software or a workstation upstairs. The plan is to put
up a simple system monitoring web page.
I know I can get some black-box TCP-IP port servers for a few
hundred dollars, but I would like to prefer something more open
if anyone knows of such a thing. At the price of the commercial
stuff, I can almost build my own from scratch (including a PCB!)
so I wouldn't be surprised if someone around here had some good
options.