Tripp Lite B030-008-17-IP Owner's Manual page 27

9. KVM Operation
Port OS
Specifies the operating system the server on the connected port is using. Choices are Win, Mac, Sun, and Other. The default is Win.
OS Language
Specifies the OS language used by the server on the connected port. Use the drop down list to view the available choices. The default is US
English.
27