AppBox D21 System User’s Guide 6
AppBox
1.5 AppBox D21 Communication Expansion
The J2 connector on the AppBox D21 presents multiple communication interfaces. The standard factory
cables only support one interface at a time. To have access to multiple communication interfaces a
Distribution Box (Part/SKU #: 703924-0001) and AppBox cable (Part/SKU #: 703923-0001) are required.
The Distribution Box expands the J2 connector to four (4) images of the AppBox D21 J2 connector. The
AppBox cable bridges
all
signals on the AppBox D21 J2 connector to a connector on the Distribution Box.
Be
aware
that
one
of the Distribution Box connectors will be used for the AppBox bridging cable leaving
3 connectors to be used for communication interfaces. All cables that can plug into the J2 connector on the
AppBox D21 can plug into the Distribution Box.
The user should enable all interfaces they want to use with the Distribution Box by setting the switch positions
on Switch SW2, position 1. See section 3.3.
The AppBox D21 and Distribution Box system configuration is shown in the figure below:
1.6 AppBox D21 Software Development Tools
The AppBox D21 is compatible with the software and hardware development tools from Microchip/Atmel.
These tools are described on the Microchip/Atmel website:
https://www.microchip.com/development-tools/
These tools include the following:
Editor
Compiler/assembler/linker
Libraries
Operating
System
Debugger
JTAG
Emulator
RS485
RS485
RS485
AppBox D21 with Distribution Box
Distribution Box
AppBox D21
J2 Connector
AppBox Cable
