IBM 56K Modem, Installation Manual

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56K Modem Internet Kit
4-1
Part 4 :
Testing Your Modem
Refer to the Application Software's installation instructions to load the
communications software you will be using.
Windows 3.1/3.11
1. Turn on your computer.
2. Start your communication software and be sure it is in the command
mode. This is also known as terminal mode.
3. Setup your communication software to the communication port your
modem is using.
4. If the port opened properly, go to the next step. Otherwise, check if you
have any other communication software trying to use the same port. If
so, close that software. If not, switch to a different COM port.
5. Type AT&F and press enter , you should see an OK response. If nothing
happened at this point, this indicates that the modem is not getting the
proper IRQ.
6. Type ATE1 and press enter
7. Type ATS18=30 and press enter
8. Type AT&T1 press enter
9. You can type any character on your keyboard and see them displayed on
your screen.
10. Type ATZ and press enter to stop the test, you should see OK displayed
on your screen.
11. Type AT&F and press enter , you should see an OK response on your
screen.