Digi One EM, Connectware Digi One EM Hardware Reference Manual
Hardware Reference Manual
Digi One EM
90000278_B
Digi International Inc. 2002. All Rights Reserved
The Digi logo is a registered trademark of Digi International, Inc.
Connectware and Digi One are trademarks of Digi International, Inc.
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.
Contents
Chapter 1 Introduction 5
About This Guide.............................................................................5
Introducing the Digi One EM..........................................................6
Support Information.........................................................................7
Chapter 2 About the Digi One EM 8
Digi One EM Drawing.....................................................................8
Connectors: Power and Serial Interface (P4)...................................9
Connectors: Ethernet Interface (P1) ..............................................10
Reset Switch ..................................................................................11
LEDs..............................................................................................11
Chapter 3 About the Development Board 13
Overview........................................................................................13
Cautions.........................................................................................13
Development Board Illustration.....................................................14
DB-9 Serial Interface (P1).............................................................15
Reset Switch (SW1).......................................................................16
Power Jack (P7) .............................................................................17
LEDs (CR4 - CR11) .....................................................................18
Digi One EM Hardware Guide 3
Chapter 4
Sample Application: TTL Signals to EIA-232 19
Appendix A Digi One EM Specifications 20
Network Interfaces.........................................................................20
Serial Interface...............................................................................20
Data Rates (bps).............................................................................20
Modem Control..............................................................................20
Flow Control Options ....................................................................20
Environmental................................................................................20
Power Requirements......................................................................20
Mechanical.....................................................................................20
Appendix B Digi One EM Certifications 21
FCC Part 15 Class A......................................................................21
ICES 003 Class A..........................................................................22
Product Safety................................................................................22
4 Digi One EM Hardware Guide
Chapter 1
Introduction
About This Guide
Purpose
The purpose of this gu ide is to enabl e developers to int egrate
the Digi One EM into other devices, enabling these devices to
make use of the Digi One EM’s rich networking features.
Audience
This document is written for developers tasked with
integrating Digi One EM device servers into other devices.
Scope
This document provides the info rmation requ ired for electr ical
integration of the Digi One EM into another device. It does
not address how to confi gu re or adm ini ste r the d evi ce serv e r
or how to write applications to use its functionality. These
topics are covered in other documents in the library.
Digi One EM Hardware Reference 5
Introducing the Digi One EM
Product Overview
The Digi One EM is part of the Digi One Family of single port
device servers that provide simple, reliable and cost-effecti ve
network connections for serial devices. The Digi One EM
provides fully transparent serial device connectivity over
industry-standard Ethernet connections and allows both
equipment manufacturers and systems integrators to
network-enable products at a frac tion of the ti me and cost
required to develop a custom solution. It is a highly flexible
and compact single component solution with a robust onboard TCP/IP stack and 10/100 Base-T Ethernet support.
From medical systems to building control and industrial
automation, in virtually any application where embedded
serial connectivity over Ethernet is needed, the Digi One EM
is the ideal choice, delivering high-performance functionality.
Cautions
• To guard against damage to the Digi One EM due to electrostatic discharge (ESD), do not remove it from its protective packa gi ng un ti l yo u have been properly gr ou nd ed.
To ground yourself, put the wrist strap on (included in the
package) and then attach the clip to a metal surface.
• Input voltag e for the Digi One EM must be in the range of
5VDC to 9VDC.
6 Digi One EM Hardware Reference
Support Information
To get help with a question or te chnical proble m or to make
comments and recommenda tions about our products or
documentation, use the following contact information.
General
Digi International
11001 Bren Ro ad East
Minnetonka, MN 55343
U.S.A
www.digi.com
Customer Service and Support
United States: 1 877-912-3444
Other Locations: 1 952-912-3444
www.support.digi.com
Digi One EM Hardware Reference 7
Chapter 2
About the Digi One EM
Digi One EM Drawing
The following figure shows the Digi One EM layout and
dimensions.
8 Digi One EM Hardware Reference
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