Digi Digi Conntect ME Application guide

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TM
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90000631_A
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 Digi International Inc. 2004. All Rights Reserved.
The Digi logo is a registered trademark of Digi International, Inc.
Connectware and Digi Connect ME and Digi Connect Wi-ME are trademarks of Digi International, Inc.
NetSilicon, NET+Works, NET+OS, and NET+ are trademarks of NetSilicon, Inc.
All other trademarks mentioned in this document are the property of their respective owners.
Information in this document is subject to change without notice and does not represent a commitment on the part of Digi
International.
Digi provides this document “as is,” without warranty of any kind, either expressed or implied, including, but not limited to,
the implied warranties of fitness or merchantability for a particular purpose. Digi may make improvements and/or changes
in this manual or in the product(s) and/or the program(s) described in this manual at any time.
This product could include technical inaccuracies or typographical errors. Changes are periodically made to the information
herein; these changes may be incorporated in new editions of the publication.
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Contents
About This Document ................................................................................................................7
Kits Contents....................................................................................................................7
Related Documentation....................................................................................................8
Support Information.........................................................................................................8
Chapter 1: About the Digi Connect ME & Digi Connect Wi-ME Embedded Modules.9
Overview..........................................................................................................................9
Types of Modules...........................................................................................................10
Connectors: Power and Device Interface.......................................................................12
Connectors: Ethernet Interface.......................................................................................13
Connectors: Antenna......................................................................................................15
Module LEDs.................................................................................................................15
Chapter 2: About the Development Board .......................................................................17
Overview........................................................................................................................17
Basic Description ...........................................................................................................18
Port Descriptions............................................................................................................20
Connectors and Blocks...................................................................................................23
Switches..........................................................................................................................27
Development Board LEDs .............................................................................................30
Power Jack......................................................................................................................32
Test points ......................................................................................................................33
Chapter 3: Programming Considerations.........................................................................35
Overview........................................................................................................................35
GPIO...............................................................................................................................36
LEDs...............................................................................................................................38
Reset...............................................................................................................................38
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Flash............................................................................................................................... 40
Appendix A Module Specifications....................................................................................41
Network Interface .......................................................................................................... 41
Serial Interface............................................................................................................... 42
Data Rates (bps)............................................................................................................. 42
Flow Control Options..................................................................................................... 42
GPIO .............................................................................................................................. 42
DC Characteristics ......................................................................................................... 43
Environmental................................................................................................................ 44
Mechanical..................................................................................................................... 45
Dimensions..................................................................................................................... 46
Recommended PCB Layout........................................................................................... 51
Antenna Information...................................................................................................... 53
RF Exposure Statement.................................................................................................. 54
Safety Statements........................................................................................................... 55
Appendix B Certifications.................................................................................................. 57
FCC Part 15 Class B ...................................................................................................... 57
Industry Canada ............................................................................................................. 58
Declaration of Conformity............................................................................................. 59
International EMC Standards......................................................................................... 60
Safety Standards............................................................................................................. 60
Appendix C Sample Application: TTL Signals to EIA-232............................................61
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About This Document
Scope of the Reference Manual
The purpose of this document is to enable developers to integrate the Digi Connect ME or
Digi Connect Wi-ME embedded modules with other devices, enabling these devices to
make use of the module’s rich networking features.
Note Unless mentioned specifically by name, the products will be referred to as the
embedded modules or modules. Individual naming is used to differentiate
product specific features.
Kits Contents
This manual is intended for customers who use embedded modules Integration Kits or
Development Kits, which are described below.
About the Integration Kit
The integration kit is the ideal platform for product evaluation, rapid prototyping, and
integration of the embedded modules. Targeted specifically at customers who want to take
advantage of the embedded modules with Digi plug-and-play firmware functionality, it
enables integration of the modules without any extensive embedded software development
with all the additional flexibility and benefits of web user interface customization and
application specific java applets.
About the Development Kit
The Digi Connect ME or Digi Connect Wi-ME Development Kit are easy-to-use and
royalty-free development platforms that significantly reduces traditional design risk and
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Related Documentation
8  Digi Connect Wi-ME & Digi Connect ME Hardware Reference
accelerates the overall software development process. The kits deliver the integrated
building blocks to quickly and cost effectively create your own custom firmware for an
embedded module based high-performance networking solution that fits the specific
requirements of your application.
Related Documentation
See the NS7520 Hardware Reference for information on the NS7520 chip.
Support Information
To get help with a question or technical problem or make comments and recommendations
about Digi products and documentation, use the following contact information.
General Customer Service and Support
Digi International
11001 Bren Road East
Minnetonka, MN 55343
U.S.A.
United States: 1 877-912-3444
Other Locations: 1 952-912-3444
www.digi.com/support/
www.digi.com
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About the Digi Connect
ME & Digi Connect Wi-ME
Embedded Modules
CHAPTER 1
Overview
The embedded modules provide fully transparent device connectivity over industry-
standard Ethernet connections and allows both equipment manufacturers and systems
integrators to network-enable products at a fraction of the time and cost required to develop
a custom solution. It is a highly flexible and compact single component solution with a
serial port, GPIO ports, and a robust on-board TCP/IP stack and 10/100 BASE-T Ethernet
support or wireless interface..
From medical systems to building control and industrial automation, in virtually any
application where embedded device connectivity over Ethernet or wireless connectivity is
needed, embedded modules are the ideal choice, delivering high-performance functionality.
Note Unless mentioned specifically by name, the products will be referred to as the
embedded modules or modules. Individual naming is used to differentiate
product specific features.
This chapter provides information about the modules hardware and contains the following
topics:
 "Types of Modules" on page 10
 "Connectors: Antenna" on page 15
 "Connectors: Ethernet Interface" on page 13
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Types of Modules
10  Digi Connect Wi-ME & Digi Connect ME Hardware Reference
 "Module LEDs" on page 15
Types of Modules
The type of module that you will use for hardware integration depends on the kit you are
using. If you are using an integration kit, you will be using a module without a JTAG
interface. If you are using a development kit, you will be using a module with a JTAG
interface.
Note JTAG is a commonly used term that is also referred to as IEEE 1149.1, an
industry standard test protocol. JTAG is an abbreviation for the European Joint
Test Action Group, which invented the first versions of the IEEE 1149.1
interface. The JTAG interface, along with the other development tools, enables
you to download, run and debug programs on the module.
The following figures show the two types of modules.
Digi Connect ME Modules
Model Description Figure
DC-ME-01T-JT
 Used for development purposes
only
 JTAG interface
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