I googled the magic string: remote serial over http And got many hits that look like what you need. The advantage of this scheme is that at least one end of the link look to=20 its network environment like just another PC using a browser to access the= =20 internet. Few networks will restrict that type of access. -- Bob Ammerman RAm Systems ----- Original Message -----=20 From: "Denny Esterline" To: "Microcontroller discussion list - Public." Sent: Wednesday, May 23, 2012 12:15 PM Subject: Re: [EE] Serial over Ethernet options > This is the kind of thing I'm hoping for, any specific suggestions? > Cellular is certainly appealing... > > > As to the 300 baud audio suggestions made by others... Thanks but not > really an option. I said "config options" but that actually includes abou= t > 1Mb of PLC ladder logic software. > > And a special thank you to those suggesting I could do it with a PIC.=20 > Don't > get me wrong, I love PICs, but I'm looking to throw (someone else's) mone= y > at a solution, not pick up another project for myself. :-) > > On Wed, May 23, 2012 at 8:27 AM, Bob Ammerman =20 > wrote: > >> If the "black box" can layer the RS232 over HTTP then you probably=20 >> wouldn't >> need any fancy >> configuration at the customer site. You may actually be able to find suc= h=20 >> a >> tool. >> >> -- Bob Ammerman >> RAm Systems >> >> ----- Original Message ----- >> From: "Denny Esterline" >> To: "Microcontroller discussion list - Public." >> Sent: Wednesday, May 23, 2012 10:11 AM >> Subject: [EE] Serial over Ethernet options >> >> >> > As the title implies, I'm looking for some serial over Ethernet >> solutions. >> > >> > Skipping some of the messier details, I have a few hundred devices in= =20 >> > the >> > field that need to have some config options changed. Normally this is >> done >> > via rs232 connection to a PC -it's a little more complicated now that >> > they're in customer hands in 28 different states. So, I can put a tech= =20 >> > to >> > work for the next year and really rack up his frequent flyer miles or = I >> > can >> > find a connectivity solution and do it remotely. >> > >> > What I'd like to be able to do is send the customer a "black box", hav= e >> > them plug it into their network and my device and give me a call. Usin= g=20 >> > a >> > similar unit at my location, we have serial access to a PC in my=20 >> > office. >> I >> > realize that having that happen seamlessly and without the customer >> > configing it to their network and being able to connect to it from my= =20 >> > end >> > without even knowing what subnet it's going to end up on is a tall >> > order... >> > How close can we come? :-) >> > >> > >> > -Denny >> > -- >> > http://www.piclist.com PIC/SX FAQ & list archive >> > View/change your membership options at >> > http://mailman.mit.edu/mailman/listinfo/piclist >> >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > --=20 > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist=20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .