Troubleshooting Your Modem Setup

Troubleshooting Your Modem Setup

If there are any problems with the cu dial-out process, you may want to use the -d option to cu to instruct the system to print diagnostic messages to your system console and the -l option to connect directly to the modem (if you added the "Direct" statement in the Devices file).

To test the modem connection on port 2, type:

cu -d -lttyd2

The Connected message should display on the console. Type AT and the OK message should display. If not, the modem is not correctly configured or there is a problem with the cable.
If Connected does not display, check the debugging messages to determine where the connection failed.

Additionally, double-check that all your hardware connections are secure and that you are using a Silicon Graphics modem cable, or one made to the specifications described in "Serial Port Pin Signal Tables".