> We're going to have cash registers on-site -- good ol' RS-232 > connections. We're also getting software that can talk to these > computers. > [...] >[Register] <- RS-232-to-USB -> [Wall Wart] <- VPN -> [Home office computer]
Trying to read between the lines here: your situation is constrained by your need to run some inflexible software on the "Home office computer" machine (a Windows box?) that was never expected to talk to a cash register via anything except (say) COM1, yes? So, your choices for a solution would seem to be limited to either: - emulating an RS-232 port directly on the "Home office computer" such that (say) COM3 was secretly one endpoint of a relay scheme, or - having some other system nearby that offers a physical RS-232 connection and which then relays that traffic for you. In that second case (which might be more straightforward in some respects) your diagram might instead look like this: [Register] <- RS-232-to-USB -> [Wall Wart] <- VPN -> [Wall Wart] <-> USB-to-RS-232 <-> [Home office computer] What kind of traffic is going over that RS-232 connection? Do we care about the control lines or are the Tx/Rx lines enough? _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
