With most companies having digital phone systems now, modems are anything b= ut simple. :-) -----Original Message----- >From: Kerry Wentworth >Sent: May 23, 2012 10:34 AM >To: "Microcontroller discussion list - Public." >Subject: Re: [EE] Serial over Ethernet options > >If you know in advance what needs to be changed, you could simply put a=20 >PIC, an EEPROM and a MAX232 in the black box, and have it make the=20 >changes automatically. If you need to make decisions based on data that=20 >is in the machine, you could rig up a simple audio modem and talk to it=20 >through any phone. > >Kerry > > >Denny Esterline wrote: >> As the title implies, I'm looking for some serial over Ethernet solution= s. >> >> Skipping some of the messier details, I have a few hundred devices in th= e >> field that need to have some config options changed. Normally this is do= ne >> 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 t= o >> 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", have >> them plug it into their network and my device and give me a call. Using = a >> similar unit at my location, we have serial access to a PC in my 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 en= d >> without even knowing what subnet it's going to end up on is a tall order= .... >> How close can we come? :-) >> >> >> -Denny >> =20 > >--=20 >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 .