On my Inverted T ultra keyboard, the SF9 key and the number pad asterisk (*) keys perform the same function; the num pad equal (=) key and the F7 keys are similarly tied together. I don't know if this is accomplished by hard wire, or by program. Is there any way that I can break these connections?

  • 1
    Please edit the original question, don't open a second.
    – Raffzahn
    Commented Apr 5, 2020 at 22:23
  • The questions look identical; I don't see where "half" was lost, Let's keep this one, close the other, since the other already has some "close" votes.
    – dave
    Commented Apr 5, 2020 at 23:29

1 Answer 1


It sounds like perhaps you have the dip switches configured incorrectly for the type of computer you are using. Check the DIP switches which can be found under the Northgate logo plate on the front of the keyboard.

This photo shows the DIP switches on the Northgate OmniKey/101, but there is a similar door with switches underneath on the Inverted-T Ultra model you have. Northgate OmniKey/101 DIP switches

The attached image below from the User's Guide (page 5) shows the correct DIP switch settings for various models of compatible computers. A PDF version of the User's Guide can be found for download on the Deskthority WIKI. OmniKey DIP Switch Settings

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