Comtrol RocketPort USB Serial or Modem Hub Driver Installa Instrukcja Użytkownika Pobierz pdf (Strona 24)

Troubleshooting 24

1. Select Test Terminal from the Comtrol program group. The program window appears:

2. Select Open Port from the Port menu. A list of possible COM port numbers appears.

3. Select the COM port you want to test, for example, COM5.

Note:

Make sure the loop button is off for the following tests. See the online help for more details.

Test 1: Verify that the modem responds

1. Type

atz

. This should return an OK.

2. Type

at&v

. This should display the modem configuration.

Test 2: Test calls from the modem to a telephone.

1. Connect the modem to a phone line.

2. Type

atdt

phonenumber (where the phonenumber is an ordinary telephone). The telephone should ring.

Test 3: Call from modem to modem.

1. Type

+++ath

to hang up.

Note: Make sure that data sending is done before and after using the +++ command.

2. Connect two modems to phone lines, open two Test Terminal sessions, and use one modem to call the

other. Send typed characters from one modem to the other.

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Comtrol RocketPort USB Serial or Modem Hub Driver Installa Instrukcja Użytkownika Strona 24