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Testing rocketmodem adapters, Test terminal modem control signals – Comtrol Multiport Modems Windows XP User Manual

Page 37

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Comtrol Tools

37

Testing RocketModem Adapters

Testing
RocketModem
Adapters

The following test may be used to ensure functionality of the RocketModem.

Note: Make sure that the <loop> button is off for the following tests.

Test 1:

The following procedure checks to see if the modem responds.

1.

Type atz. This should return an OK.

2.

Type at&v. This should display the modem configuration.

Test 2:

The following test calls from the modem to an ordinary telephone.

1.

Connect the modem to a phone line.

2.

Enter atdtphonenumber, where phonenumber is the phone number of an
ordinary telephone. The telephone should ring.

3.

Enter +++ath to hang up.

Test 3:

This test has one modem call another modem.

1.

Connect two modems to phone lines.

2.

Open two Test Terminal sessions.

3.

Use one modem to call the other modem.

4.

Send typed characters from one modem to the other.

Test Terminal
Modem Control
Signals

The terminal window displays the modem control signals as gray
or green lights at the top of the window. The first four are inputs:

The lights are green if they are turned on, or gray if turned off.
The text on the light also changes from uppercase (CTS), which is on, to lowercase
(cts), which is off.

Note: Ring indicator is only available on the RocketPort Plus and the RocketPort

Universal PCI Quad/Octacables adapters.

The next two lights are outputs:

Note: If you have a loopback plug connected and you click on one of the outputs,

the corresponding signal is sent to the input and the input lights should
toggle accordingly.

The right most light is the loop indicator:

If this is on, the COM port internal loopback feature is activated and any
information or code entered in the terminal window loops back through the COM
port circuitry. If this is off, the COM port internal loopback is deactivated, and any
information or code entered in the terminal window is sent out of the port.