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The
KBE-629 Keyboard Encoder allows a switch, pushbutton or any volt
free contact to generate a PC compatible keyboard code. Any Windows
95/98/NT/ME/2000/XP key code including Multimedia and ACPI keys can
be generated. As many external switches can be connected to the
KBE-629 as desired.
The
character that is sent to the PC depends upon which pair of screw
terminals the switch is connected between. All the key code connector
pairs are shown in the connection table 1. For example, to have your
contact generate the "a" character, you would connect
between screw terminals "D" and "L". To have
another contact generate the "b" character, you would
connect between "Y" and "O".
There
is no limit to the number of switches that can be connected. The
Caps Lock, Shift Lock and Num Lock LEDs may be connected between the
CL, SL and NL terminals respectively.
The
KBE-629 can function both in USB and PS2 interface environment. For
PS2 interface, it supports IBM PC/AT, IBM PS/2 and all compatible
machines and provides a 16-character first-in-first-out buffer in
which data is stored. For USB interface, it can support the USB
standard request as well as HID class request version 1.1.
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