Windows 2000 and Windows XP users can also
use Windows Device
Manager to run hardware diagnostics.The self test consists of two diagnostics: the signal lead test and the local loop back test. Both tests require the test plug that comes strapped to the modem cable.
Signal lead test – The signal lead test checks the BARR/SYNC adapter’s send and receive pins. First the software sends a signal to each send pin. Next, the test plug routes the signal back through the corresponding receive pin. Finally, the software checks that the signal returns through the correct pin. Signal-lead test errors indicate the circuit that failed; for example: CTS failed or DCD failed.
Local loopback test – During the local loop back test, the software sends a data string of 256 characters in a rotating pattern. The test plug returns the data through the receive side of the adapter. Then the software verifies that the returned data matches the sent data. If the software receives errors from the local loop back test, the following message displays: Loopback failed.
Windows 2000 and Windows XP users can also
use Windows Device
Manager to run hardware diagnostics.
Complete the following steps to run the self test.
Insert the test plug into the SYNC MAX PCI adapter. The test plug comes strapped to the modem cable so you can run the test whenever necessary.
Open the NJE Configuration Utility.
Select the Communications Profile tab.
In the Name drop-down list, select your Barr SNA connection.
Click Modify. The Connection Configuration dialog box displays.
Next to Barr SNA configuration, click Modify. The Barr SNA Configuration dialog box displays.
Click Modify. The BARR/SNA SDLC Link Service utility displays.
From the Diagnostics tab, click Start to begin the self test.
Check the test results. If the signal lead test fails, your adapter settings might conflict with other equipment settings in the computer.
Click OK.
Remove the test plug and install the host cable.
