Introduction To The Keusb24 - Hagstrom KEUSB24 User Manual

Introduction to the KEUSB24

Our KEUSB24 Keyboard Encoder is a product designed to interface
Keypads, Switches, and/or other contact closures to the computer's
USB port. Devices connected to the KEUSB24 I/O header produce
keystrokes that appear to the PC as if they were entered from a
standard USB keyboard.
The KEUSB24 is fully programmable by the user. This programmability
feature allows the confi guration of the I/O as well as the selection
of the keystrokes that will be sent to the PC. The KEUSB24 stores
the user's confi guration program in non-volatile memory so that the
information is retained on the unit even after power is turned off.
The KEUSB24 I/O
The 2 x 25 pin dual row header provides 24 I/O signals that can be
programmed to scan any size matrix up to 12 Columns x 12 Rows.
Any of the 24 I/O pins may be designated as either a Column or a
Row. The KEUSB24 confi gures its scanning to the keypad, allowing
the direct connection of many "off the shelf" keypads without any
modifi ed or complicated cabling.
Power Requirements
The KEUSB24 requires no external power source. It is powered directly
from the USB port on the PC.
Supported Computers
All PCs with a standard USB port will work with the KEUSB24. The
KEUSB24.EXE Program is for Windows based systems.
Hardware Requirements
The KEUSB24 is designed to work with standard, commercially
available cables for connection to the PC. An A-B Type USB cable is
required for this connection.
Default Settings
The KEUSB24 is programmed and shipped with a default 4x4 matrix
confi guration. This default confi guration can be changed or modifi ed
at any time by the user.
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