Introduction To The Ke24 - Hagstrom KE24 User Manual

Introduction to the KE24

The KE24 Keyboard Encoder is a product designed to interface
keypads, switches, or RS-232 to your computer's keyboard input.
Additionally, the RS-232 serial communication port may be used
in a variety of other ways to create the type of interface that you
require.
The KE24 is user programmable. This feature allows you to
configure the I/O and select the operating modes for the unit.
Nonvolatile memory stores your configuration information.
The KE24 I/O:
The 52 pin header in the KE24 provides 24 I/O signals that can
be programmed to scan a matrix or discrete inputs. Any of the 24
I/O pins can be programmed as a Row or Column in a matrix
application, or as an individual input. A matrix size from 1x1 to
12x12 can be scanned. I/O pins not assigned as Rows or Columns
in a matrix application may be used as discrete inputs. Input from
the I/O header may be directed to the PC keyboard input, or to
the KE24 RS-232 port.
Modes of KE24 operation:
Input
RS-232
Keypads or Switches
Keypads or Switches
PC Keyboard
PC Keyboard
These modes may be used individually or combined with other
modes of operation.
Output
PC Keyboard Input
PC Keyboard Input
RS-232 Port
PC Keyboard Input
RS-232 Port
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