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FAQ

The following questions are frequently asked in relation with keyboard controller.

The associated answers should help you to get the first information at any times. But please don't hesitate to ask additional questions directly. We are looking forward to have a good dialogue with you. If there is a info-button beyond the question, clicking will lead to an detailed information or a pdf-file.

1. What are the key functions of your keyboard controllers programmable?
Answer:
The key functions are programmed by us with a PC-program device accordingly with customer-specified allocation or matrix. Also the programme is verified afterwards.

2. Could the programmation of the keyboard controllers take place by the customer ?
Answer:
No, this is not possible. You get a programmed
and verified controller from us.

3. Could a controller's programme be changed or be transcribed?
Answer:
Yes, this is easily possible for us, as soon as you send the controller and the new specification to us.

4. What is actually "N-Key-Rollover" and "2-Key-Rollover"?
Answer:
A keyboard controller equipped with "N-KEY-ROLLOVER" is in the situation to evaluate several at the same time pressed keys, i.e. also with concurrent activity of keys all key codes are sent to the PC. By circuit of the cross-over-points of the matrix with degenerate diodes are keyboards with multiple key combinations possible. With "2KEY-ROLLOVER" the code of the seconds is released after activity of two keys only on letting go the first.

5. What is actually an AUTOREPEAT?
Answer:
The controller sends the code of the pressed key repeated to the PC as long as the key is pressed.

6. I have received your price-list for matrix-keyboard controllers.
What means:

  1. "mtcon0816/Einmk."?
    These are the INITIAL COSTS for the program production (documentation...)
  2. "mtcon0816/Pr/Ta"?
    Program effort per key (is natural depending on the number of the keys to be programmed), these are also initial costs.
  3. "mtcon0816/porgr."?
    This is the effort for the shoot up / programming of the brick of the controller, i.e. this article says what costs it on a certain number of controllers to shoot up and verify afterwards the before provided programme.

The separation of these 3 positions is necessary, because we do not exactly know with sending of a generally valid price-list how the keyboard should looks like for the customer.

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