Tripp Lite USA-19HS Owner's Manual for USA-19HS Windows v3.7S 933021 - Page 18

This is also the first place to check to see if your Keyspan adapter is working properly. If your Keyspan adapter does not show up in the Adapter Status tab, please proceed Troubleshooting section in this manual for further instructions. Properties tab The Properties tab in the Keyspan Serial Assistant allows has two functions: • test your Keyspan adapter (via Serial Test Options) • make changes to the behavior of the Keyspan adapter (Endpoints and Serial Port Options) Properties tab Endpoints Serial Port Options Serial Test Options Adapter pull down menu The Adapter pull down menu is used to select which USB Serial Adapter you would like to configure. If you only have one Keyspan USB Serial Adapter, you will not need to change the selection. - Endpoints and Serial Port Options The Endpoints radio buttons are used to configure how the Keyspan adapter will communicate with the USB subsystem (software)on your computer. Most users will not need to modify the default setting (Compatible (Interrupt)). You should only change this setting if you are sure that your serial device needs a specific setting. The default setting is Compatible (Interrupt). Port pull down menu 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 USB Serial Adapter, you will not need to change the selection. Transmit Completion Timing Advance pull down menu The Transmit Completion Timing Advance pull down menu allows you to adjust a device's transmit behavior to achieve the optimum compromise between compatibility (exact emulation of built-in ports) and improved throughput. The default setting is 'Standard'. Before changing this setting, read the TX Ack Advance Details section in this manual. This section gives you detailed information as to what this feature does and how it affects serial communication. This setting is set per port (ie if you have a multi port Keyspan adapter, you can set one port to have one setting and another port to use a different setting). Once you make this change, click the Update Configuration button to upload the new settings to your adapter. USA-19HS - User Manual Page 18 of 30