Instruction/ maintenance manual of the product 90000278_B Digi
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Hard wa r e Refer en ce Man ual Digi One EM 90000278_ B.
Digi Int ernational I nc. 2002. A ll Rights Rese rved The Digi logo is a reg istered tr ademark of D igi Internat ional, Inc. Connectwar e and Dig i One are tra demarks of Digi Interna tional, Inc . Informati on in th is docume nt is subj ect to cha nge withou t notice an d does not repres ent a commitm ent on the part of Digi Internati onal.
Digi One EM Hardware Gui de 3 Content s Chapter 1 Introduction 5 About This Guide............................................................................. 5 Introducing the Digi One EM ..........................................................6 Support Information .
4 Digi One EM Hardware Guide Chapter 4 Sample App lication: TTL Signals t o EIA-232 19 Appendix A Digi One EM Spec ifications 20 Network Interfaces ......................................................................... 20 Serial Interface .........
Digi One EM Hardware Re ference 5 Chapter 1 Intro ducti on About This Guide Purp ose The purpose of this guide is to ena ble developers to int egrate the Di gi One EM into othe r device s, enab ling the se devi ces to make use of the Digi O ne EM’ s rich ne tworking fea tures.
6 Digi One EM Hardware Re ference Introducing the Digi One EM Prod uct Over view The Digi O ne EM i s part of th e Digi On e Family of sing le port device servers that provide simp le, re liable and cost-e ffective network conn ections for serial devices.
Digi One EM Hardware Re ference 7 Support Information T o get he lp with a qu estion o r te chnica l pr oblem or t o make comm en ts and re co mmen dation s about our pr od ucts or docume ntati on, use the follo wing cont act in formatio n. General Digi Internat ional 1 100 1 Bren Ro ad Eas t Minneto nka, MN 55 343 U.
8 Digi One EM Hardware Re ference Chapter 2 About the Digi One EM Digi One EM Drawing The fol lowing figu re shows the Digi One EM layout and dimen sions.
Digi One EM Hardware Re ference 9 Connectors: Power and Serial Interface (P4) The Digi One EM ha s a single 12-pin, se rial inter face port (label ed P4) tha t support s EIA-232 (TTL levels o nly), dat a rates up to 230 Kbps and full -mo dem cont rol.
10 Digi One EM Hardware Re ference Connectors: Ethern et Interface (P1) The Digi One EM Eth ernet conn ector is an eight-wire , RJ-45 jack me eting t he requ irement s of ISO 88 77 for 1 0/100Ba se- T . The fol lowing fig ure help s you locate pi ns and the t able help s you identi fy which sig nal uses eac h pin.
Digi One EM Hardware Re ference 11 Reset Switch The reset switch , located between P 3 and CR1, does the follow ing (dep ending on how long you hold t he switch d own): • It rebo ots the D igi One EM i f you press a nd release th e switch immedia t ely .
12 Digi One EM Hardware Re ference Bottom lef t R ed Diagnos tics • Blinking 1 -1-1 means starting the operat ing syst em. • Blinking 1 -5-1 means config urati on has been returned to f actory defaults. • S te ady blin king mean s the device i s seeking an IP addres s from a DHCP server .
Digi One EM Hardware Re ference 13 Chapter 3 About t he Deve lopment Board Over view The deve lopment b oard provid es the foll owing inter faces: • A DB-9 se rial inte rface that enables seri al connec tions from your device to the Di gi One EM module .
14 Digi One EM Hardware Re ference Devel opment Board Illust ration.
Digi One EM Hardware Re ference 15 DB-9 Ser ial Inter face (P 1 ) The fol lowing figu re help s you locat e specific DB-9 pins and the t able ma ps sig nals to pins.
16 Digi One EM Hardware Re ference Reset Switch (SW1) The reset sw itch reboot s the Digi O ne EM..
Digi One EM Hardware Re ference 17 Powe r Jack (P 7) The power jack acce pts 5 volt s DC +/- 5% from a regulat ed power sup ply . The develop me nt board is polarity s e nsitive. The +5 v olts is assumed to b e the cent er cont act on conne c tor , an d the g round is t he outside o f the co nn ector barr el, as shown in the fol lowing fi gure .
18 Digi One EM Hardware Re ference LEDs (CR4 - CR1 1) The LED labele d CR4 is a power indica tor . The other seven LEDs d i s play EIA -2 32 sign a l activi ty .
Digi One EM Hardware Re ference 19 Chapter 4 Sample Ap plicat ion: TTL Si gnals to EIA-2 32 The fol lowing figu re is an exa mple of h ow to convert the Digi One EM signals to no rmal seri al volt age levels.
20 Digi One EM Hardware Re ference Appendix A Digi One EM Specifications Network Interfac es • RJ-45 conne ctor • 10/10 0Bas e-T • Ha l f- and ful l-duple x suppo r t Seri al Inte rface One T T .
Digi One EM Hardware Re ference 21 Appendix B Digi One EM Certi fications This pr oduct complies w ith the follo wing sta ndards: FCC Part 15 Class A Radio Frequency Interference (RFI) (FCC 15.105) This equi pment has been tested and found to comply with the limits for Class A digital devices pursuant to Part 15 of the FCC Rule s.
22 Digi One EM Hardware Re ference Modifica tions (FCC 15. 21) Change s or modi f icatio ns to this eq uipme n t not exp ressly appro ved by D igi may voi d the u ser’ s a uthority to oper ate this equ ipment.
Digi One E M Hardware Reference.
Digi One E M Hardware Reference.
An important point after buying a device Digi 90000278_B (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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If you already are a holder of Digi 90000278_B, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Digi 90000278_B.
However, one of the most important roles played by the user manual is to help in solving problems with Digi 90000278_B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Digi 90000278_B along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
