Siemens I-SURF User Manual download pdf (Page 46)

8. I-Surf USB Utilities

The loopback test follows this pattern:

1. The ISDN Adapter is addressed (initialized).

2. An ISDN data connection is established to the multi-subscriber

number (MSN) given. If the MSN is correct, a connection is

established in order to be able to transmit data.

Test data are sent on one B channel of the S

bus and received on the

second B channel.Testdaten werden auf einem B-Kanal des S

-Bus

gesendet und über den zweiten B-Kanal wieder empfangen.

4. The test data are checked for transmission errors.

5. The test result is displayed.

8.3.3 Test Execution and Test Result

1. Start the loopback test program, if you have not already done so.

Enter the subscriber number (MSN) to be user for testing. If this

number was given during configuration, it is automatically obtained

from the Windows registry. If no number was given during

configuration, enter the MSN for your ISDN Adapter.

3. Click Start Test.

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Siemens I-SURF User Manual Page 46