Mustek TM KB3100 user manual Answer Back Code, Preparations

TM

PC or PST SYSTEM

PROGRAMMABLE

KEYBOARD

EXT. KB PORT

CHAP.

5

PC or PS2 KEYBOARD

Fig. 5 - 1 - 1 Preparations

ANSWER BACK CODE

Programming the answer back codes of the 6 position electronic key-lock is also very easy as they are included in the keyboard programming with the locations coded as “KLP”, “KL0”, “KL1”, “KL2”, “KL3” and “KL4” in the key-layout map of page L1. These answer back codes will be issued by the programmable keyboard to PC whenever the 6 position electronic key is switched to a new position (there will be a time delay as determined in the configuration of the keyboard programming utility and is adjustable by “r” and “t” key presses, this time delay is useful to give only the answer back code of the last position of control key when it is turned across multiple positions) or when the keyboard receives an “enquiry” code (E7h) from the PC or the PST system. Here are some examples of sending this “enquiry” code in different languages:

Language	Syntax
C	outp (0x60, 0xE7)
BASIC	out &H60, &H0E7
DEBUG	o 60 E7

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