Digi One EM Hardware Reference Manual
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- Hardware reference manual (86 pages) ,
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Summary of Contents for Digi Digi One EM
- Page 1 Hardware Reference Manual Digi One 90000278_B...
- Page 2 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.
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Page 3: Table Of Contents
Contents Introduction Chapter 1 About This Guide................5 Introducing the Digi One EM ............6 Support Information.................7 About the Digi One EM Chapter 2 Digi One EM Drawing..............8 Connectors: Power and Serial Interface (P4)........9 Connectors: Ethernet Interface (P1) ..........10 Reset Switch ..................11 LEDs ....................11... - Page 4 Serial Interface ................20 Data Rates (bps)................20 Modem Control................20 Flow Control Options ..............20 Environmental................20 Power Requirements ..............20 Mechanical..................20 Digi One EM Certifications Appendix B FCC Part 15 Class A ..............21 ICES 003 Class A ................22 Product Safety................22 Digi One EM Hardware Guide...
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Page 5: Chapter 1 Introduction
About This Guide Purpose The purpose of this guide is to enable developers to integrate 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. -
Page 6: Introducing The Digi One Em
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-effective network connections for serial devices. The Digi One EM provides fully transparent serial device connectivity over... -
Page 7: Support Information
General Digi International 11001 Bren Road 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... -
Page 8: Chapter 2 About The Digi One Em
Chapter 2 A b o u t t h e D i g i O n e E M Digi One EM Drawing The following figure shows the Digi One EM layout and dimensions. Digi One EM Hardware Reference... -
Page 9: Connectors: Power And Serial Interface (P4)
Connectors: Power and Serial Interface (P4) The Digi One EM has a single 12-pin, serial interface port (labeled P4) that supports EIA-232 (TTL levels only), data rates up to 230 Kbps and full-modem control. The following figure helps you locate pins, and the table helps you identify which signal uses each pin. -
Page 10: Connectors: Ethernet Interface (P1)
Connectors: Ethernet Interface (P1) The Digi One EM Ethernet connector is an eight-wire, RJ-45 jack meeting the requirements of ISO 8877 for 10/100Base- T. The following figure helps you locate pins and the table helps you identify which signal uses each pin. -
Page 11: Reset Switch
The reset switch, located between P3 and CR1, does the following (depending on how long you hold the switch down): • It reboots the Digi One EM if you press and release the switch immediately. • It reboots the Digi One EM and restores the configuration to factory defaults. - Page 12 Bottom Diagnostics left • Steady blinking means the device is seeking an IP address from a DHCP server. Note: If other blinking patterns occur, call Digi Technical Support. Bottom Yellow Reserved right Digi One EM Hardware Reference...
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Page 13: About The Development Board
A reserved 3-pin header (labeled P5) Cautions • Although the Digi One EM can handle up to 9 VDC, this voltage can harm the development board, which works only with the 5 volt regulated power supply. The board does not regulate power. -
Page 14: Development Board Illustration
Development Board Illustration Digi One EM Hardware Reference... -
Page 15: Serial Interface (P1)
Pin 9 Pin 6 Signal Data Carrier Detect (DCD) Receive Data (RxD) Transmit Data (TxD) Data Terminal Ready (DTR) Signal/Chassis Ground (GND) Data Set Ready (DSR) Request To Send (RTS) Clear To Send (CTS) Unused Digi One EM Hardware Reference... -
Page 16: Reset Switch (Sw1)
Reset Switch (SW1) The reset switch reboots the Digi One EM. Digi One EM Hardware Reference... -
Page 17: Power Jack (P7)
The development board is polarity sensitive. The +5 volts is assumed to be the center contact on connector, and the ground is the outside of the connector barrel, as shown in the following figure. Digi One EM Hardware Reference... -
Page 18: Leds (Cr4 - Cr11)
LED. Signal Tx (Transmit Data) Rx (Receive Data) CTS (Clear to Send) RTS (Request to Send) DTR (Data Terminal Ready) CR10 DSR (Data Set Ready) CR11 DCD (Data Carrier Detect) Digi One EM Hardware Reference... - Page 19 S a m p l e A p p l i c a t i o n : T T L S i g n a l s t o E I A - 2 3 2 The following figure is an example of how to convert the Digi One EM signals to normal serial voltage levels.
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Page 20: Network Interfaces
Altitude: 12,000 feet (3657.60 meters) Power Requirements +5VDC @ 370 mA to 9VDC @ 230 mA typical Mechanical • Length: 1.93 inches (49.02 millimeters) • Width: 1.57 inches (39.87 millimeters) • Height: 0.974 inches (24.73 millimeters) Digi One EM Hardware Reference... -
Page 21: Appendix B Digi One Em Certifications
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Digi One EM Hardware Reference... -
Page 22: Ices 003 Class A
Modifications (FCC 15.21) Changes or modifications to this equipment not expressly approved by Digi may void the user’s authority to operate this equipment. ICES 003 Class A This Class A digital apparatus meets the requirements of the Canadian Interference-Causing Equipment Regulations. - Page 23 Digi One EM Hardware Reference...
- Page 24 Digi One EM Hardware Reference...
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