Manuale d’uso / di manutenzione del prodotto OMG-COMM2-EX del fabbricante Omega Engineering
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Contents I NTRODUCTION ..........................................................................1 O VERVIEW ................................................................................................ 1 W HAT ’ S I NCLUDED .....................
RS - 232 ..................................................................................................... 12 RS - 422 ..................................................................................................... 12 RS - 485 ..............
Introduction OMG - COMM2 - EX Page 1 Introduction Overview The OMG - COMM2 - EX provides the PC with 2 asynchronous serial ports providing a versatile interface field selectable as RS - 232 for modems, printers and plotters, as well as RS - 422/485 for industrial automation a nd control applications.
Card Setup OMG - COMM2 - EX Page 2 Card Setup The OMG - COMM2 - EX contains several jumper straps which must be set for proper operation. Addres s Selection Each port on the OMG - COMM2 - EX occupies eight consecutive I/O locations. A DIP - switch is used to set the base address for these locations.
Card Setup OMG - COMM2 - EX Page 3 Port Enable / Disable Each port on the OMG - COMM2 - EX can be enabled or disabled with switch position 8 on the DIP - switch. The port is enabled with the switch ‘On’ or ‘Closed’ and disabled when ‘Off’ or ‘Open’.
Card Setup OMG - COMM2 - EX Page 4 Interrupt Modes Headers E9 and E10 select the interrupt modes for each port. Each port must be set in the correct mode to insure proper installation. E10 sets Port 1 and E9 sets Port 2 ‘ N ’ indicates the ( N )ormal, single interrupt per port mode.
Card Setup OMG - COMM2 - EX Page 5 Set the jumper to ‘ S ’ if you are usin g more than one OMG - COMM2 - EX in a bus or you wish to completely remove the pull - down resistor for hardware compatibility.
Installation OMG - COMM2 - EX Page 6 Installation The OMG - COMM2 - EX can be installed in any of the PC expa nsion slots, but to access the ‘AT’ or (E)ISA IRQs (10 - 15) it must be installed in one of the 16 bit slots.
Technical Description OMG - COMM2 - EX Page 7 Technical Description The OMG - COMM2 - EX adapter utilizes the 16550 UART chip. This chip features programmable baud rate, data format, interrupt control and has a 16 byte transmit and receive FI FO.
Technical Description OMG - COMM2 - EX Page 8 Connector Pin Assignments RS - 232 (Male DB9) Name Pin # Mode TD Transmit Data 3 Output RTS Request To Send 7 Output DTR Data Term Ready 4 Output GND Grou.
Specifications OMG - COMM2 - EX Page 9 Specifications Environmental Specifications Specification Operating Storage Temperature Range 0º to 50º C (32º to 122º F) - 20º to 70º C (- 4º to 158º F) Humidity Rang e 10 to 90% R.H. Non - Condensing 10 to 90% R.
Appendix A - Troubleshooting OMG - COMM2 - EX Page 10 Appendix A - Troubleshooting Serial Utility test software is supplied wit h the adapter and will be used in the troubleshooting procedures. By using this software and following these simple steps, most common problems can be eliminated without the need to call Technical Support.
Appendix B - How To Get Assistance OMG - COMM2 - EX Page 11 Appendix B - How To Get Assistance Please refer to Troubles hooting Guide prior to calling Technical Support. 1. Begin by reading through the Trouble Shooting Guide in Appendix A. If assistance is still needed please see below.
Appendix C - Electrical Interface OMG - COMM2 - EX Page 12 Appendix C - Electrical Interface RS - 232 Quite possibl y the most widely used communication standard is RS - 232. This implementation has been defined and revised several times and is often referred to as RS - 232 or EIA/TIA - 232.
Appendix C - Electrical Interface OMG - COMM2 - EX Page 13 RS - 485 RS - 485 is backwardly compatible with RS - 422; however, it is optimized for partyline or multi - drop applications. The output of the RS - 422/485 driver is capable of being Active (enabled) or Tri - State (disabled).
Appendix D - Asynchronous Communications OMG - COMM2 - EX Page 14 Appendix D - Asynchronous Communications Serial data co mmunications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character.
Appendix E - Silk - Screen OMG - COMM2 - EX Page 15 Appen dix E - Silk - Screen 3.9" 6.9" 4.2".
Appendix F - Compliance Notices OMG - COMM2 - EX Page 1 6 Appendix F - Compliance Notices Federal Communications Commission Statement FCC - This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of the F CC Rules.
W ARRANTY / DISCLAIMER OME GA ENGINEERING, INC. war rants this unit to be free of defects in materials and workmanship for a period of 1 3 months from date of purc hase. OM E G A ’ s W ARRAN TY adds an additional one (1) month grace period to the normal one (1) year pr oduct warranty to cover handling and shipping time.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Omega Engineering OMG-COMM2-EX è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Omega Engineering OMG-COMM2-EX - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Omega Engineering OMG-COMM2-EX imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Omega Engineering OMG-COMM2-EX ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Omega Engineering OMG-COMM2-EX, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Omega Engineering OMG-COMM2-EX.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Omega Engineering OMG-COMM2-EX. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Omega Engineering OMG-COMM2-EX insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
