Linx Technologies MDEV-LICAL-HS - Manual (Page 9)

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The Decoder Board USB Area
The decoder development board has a Linx SDM-USB-QS USB interface
module for use with the included development software. This module is
powered by the USB bus so does not pull any current from the battery.
Figure 13 shows this section.
The microcontroller on the right monitors the decoder data lines and
generates commands that are sent to the development software on the PC
via the QS Series USB module. The RX_IND LED to the left of the module
flashes to indicate that data is being received from the PC, and the TX_IND
line flashes to indicate that the module is sending data to the PC.
The Decoder Board Key Exchange Area
Figure 14 shows the key exchange area of the development board.
The KEY_IN jack and the IR receiver circuit are identical to the encoder
board. Since the decoder must also send a key to an encoder and / or
another decoder, the KEY_OUT jack is populated. The infrared portion
consists of an infrared diode (IR2) that is modulated by the KEY_OUT line
of the decoder. When the SEND_KEY and LEARN buttons are pressed and
released, the decoder begins sending the key to the jack and diode. Simply
plug a wire into the KEY_OUT jack on the decoder board and the KEY_IN
jack on the encoder board or activate the infrared receiver on the encoder
board to send the key across.
Figure 13: The Decoder Board USB Area
Figure 14: The Decoder Board Key Exchange Area
HS Series Master Development System Software
The HS Series Master Development System software can be used in one
of two modes. The default mode is as a simulation of the system. This
is a good way of showing how the HS Series can work in a system for
activating lights and doors.
The second mode is for use with the development system. When the
decoder board is plugged into the USB port, the kit can be used to activate
the features in the software. When a data line goes high on the decoder,
the microcontroller sends a command to the computer to control the
functions in the software.
Clicking the Help label at the top of the window opens the guide for
using the development software. Please see this document for details on
operation of the software.
Figure 15: The HS Series Master Development Software