HP EISA/PCI Multiplexer Family Cabling, Diagnostics and Troubleshooting Manual

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Troubleshooting and Diagnostics
Troubleshooting
ACU cul1a16 2400
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NOTE Modem dial-in entries are normally created by using SAM.
2. Verify that the serial port works by testing it with a terminal.
3. Make sure the cable connection from the port to the modem is using
the correct cable and adapter. The most common modem installation
problem is an incorrectly configured cable or adapter.
4. Test the modem by typing at the
HP-UX prompt:
cu -s 2400 -l/dev/tty1a16 dir
You should see a Connected message (this does not mean that you are
actually connected to the modem) on the console. Then type:
AT
You should see an OK echo on the console. If not, type:
ATE1
After getting the OK echo back from the modem, type:
ATDT[Phone Number]
Any phone number can be used to check out the modem. If the modem
is still not functioning properly, hit a few characters on the keyboard
and see if the TD light flashes on your modem. Check the cable
connection wiring with a breakout box and your modem’s switch
settings.
To disconnect from the modem, type a tilde and a period:
˜.
5. You should be back at your HP-UX prompt.
6. See the SAM manual for specific details on how to set up your modem
for dial-in calls.
Modem Error Messages
Below are listed common modem error messages displayed when using
the cu command:
Error Message:
NO DEVICES AVAILABLE