Keyspan Laptop Docking Station - Manual (Page 15)

the Port pull down
If you have more than one serial port on your Keyspan adapter, the Port pull down menu allows
you select which serial port you want to modify or test. You can also see the serial port's COM
port number and its COM port status next to the Port pull down menu. If you only have one
serial port on your Keyspan Mini Port Replicator, you will not need to change the selection.
The Test This Port button
The Test This Port button tests the COM port selected in the Port pull down menu. The test that
is performed is the selected test in the Test Option box.
the Test Mode box
The Test Mode box allows to specify the type of test that will be performed when you press the
Test This Port button.
There are 2 types of tests:
TX Only: Use this test to test only the transmit (Tx) signals of the Keyspan adapter.
Ext. LoopBack: Use this test sending and receiving data. This test sends data out the selected serial
port and waits to receive it via a special Loopback connector. You can find more information about
this special Loopback connector in the
Serial Port Pin Outs section in this manual.
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Keyspan:Mini Port Replicator for Windows-v3.2 User Manual
This User Manual applies to the Keyspan Mini Port Replicator Software for Windows.
(rev 02jun19JA)
Page 15