I'm looking for some typical and worst-case times for a serial modem to hang up and DCD deassert after receiving the hang-up command string ("ATH"). My project uses a modem and occasionally must ...
We are facing a tough problem on half-duplex (analog / PSTN / V.23) modem connections. We are using this method to communicate with aged meter devices which are located all over the country. We are ...
I'm developing software for a device that will act as a modem emulator. In order to test it out, I need to have a serial port that is capable of operating in DCE mode (e.g. is able to toggle the modem ...
I would like to capture and decode the ADSL traffic going on between my modem to the CO equipment. I am thinking of a setup similar to the one shown in this paper, but it seems the necessary hardware ...