Omega ISA RS-422 - Manuals

Omega ISA RS-422 – Manual in PDF format online.

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Manual

Manual Omega ISA RS-422

Summary

Page 2 - One Omega Drive, River Bend Technology Centre; OMEGAnet

Servicing North America: USA: One Omega Drive, P.O. Box 4047 ISO 9001 Certified Stamford CT 06907-0047TEL: (203) 359-1660 FAX: (203) 359-7700 e-mail: [email protected] Canada: 976 BergarLaval (Quebec) H7L 5A1, CanadaTEL: (514) 856-6928 FAX: (514) 856-6886 e-mail: [email protected] For immediate technical o...

Page 3 - Contents

Contents I NTRODUCTION ..........................................................................1 O VERVIEW ................................................................................................ 1 W HAT ’ S I NCLUDED ...........................................................................

Page 4 - Figures

W HAT IS G ROUND L OOP ? ................................................................... 16 C ABLING R ECOMMENDATIONS .......................................................... 16 A PPENDIX E - A SYNCHRONOUS C OMMUNICATIONS ................17 A PPENDIX F - S ILK -S CREEN ...........................

Page 5 - Introduction; Overview

Introduction OMG-ULTRA-SIO Page 1 Introduction Overview The OMG-ULTRA-SIO provides the PC with two additional ground isolated RS- 422/485 (P/N 3189) or two non-isolated RS-422/485 (P/N 3089) serial ports for terminals, modems, printers, etc. Isolation is important in installations where the equipmen...

Page 6 - Card Setup; Address Selection; Port Enable / Disable

Card Setup OMG-ULTRA-SIO Page 2 Card Setup The OMG-ULTRA-SIO contains several jumper straps that must be set for proper operation. Address Selection Each port on the OMG-ULTRA-SIO occupies eight consecutive I/O locations. A DIP-switch is used to set the base addres s for these locations. SW1 sets th...

Page 7 - IRQ Selection; Note

Card Setup OMG-ULTRA-SIO Page 3 IRQ Selection Headers E11 and E12 select the interrupt request for each seria l port. If COM1: is selected, the corresponding jumper must be on the IRQ4 setting. If COM2: is selected, the corresponding jumper must be on IRQ3. Note : Most communications software applic...

Page 8 - Interrupt Modes; N S M

Card Setup OMG-ULTRA-SIO Page 4 Interrupt Modes Header E5 and E6 selects the interrupt mode for each port. Each port must be set in the correct mode to insure proper operation. ‘ N ’ indicates the ( N )ormal, single interrupt per port mode. ‘ S ’ Indicates the ( S )hared interrupt mode, which allows...

Page 11 - Interface Mode Examples; RTS

Card Setup OMG-ULTRA-SIO Page 7 Interface Mode Examples RTS Auto E8 & E10 E3 & E9 Figure 6 - RS-422 RTS Auto E8 & E10 E3 & E9 Figure 7 - RS-485 ‘Auto’ Enabled, with ‘No Echo’ RTS Auto E8 & E10 E3 & E9 Figure 8 - RS-485 ‘Auto’ Enabled, with ‘Echo’ RTS Auto E8 & E10 E3 &...

Page 12 - Line Termination; Name

Card Setup OMG-ULTRA-SIO Page 8 Line Termination Typically, each end of the RS-485 bus must have line terminating resistors (RS-422 terminates at the receive end only). A 120 ohm resistor is across each RS-530/422/485 input in addition to a 1K ohm pull-up/pull-down combination that bias the receiver...

Page 13 - Installation; System Installation; Install Software at the beginning of the CD. Choose; Other Operating Systems

Installation OMG-ULTRA-SIO Page 9 Installation System Installation The OMG-ULTRA-SIO can be installed in any of the PC expansion slots. The OMG-ULTRA-SIO contains several jumper straps for each port which must be set for proper operation. 1. Turn off PC power. Disconnect t he power cord. 2. Remove t...

Page 14 - Technical Description; Features; Signal

Technical Description OMG-ULTRA-SIO Page 10 Technical Description The OMG-ULTRA-SIO provides the PC with two additional ground isolated RS- 422/485 (P/N 3189) or two non-isolated RS-422/485 (P/N 3089) serial ports for terminals, modems, printers, etc. Isolation is import ant in installations where t...

Page 15 - Specifications; Environmental Specifications

Specifications OMG-ULTRA-SIO Page 11 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 Range 10 to 90% R.H. Non-Condensing 10 to 90% R.H. Non-Condensing Manufacturing • All Printed Circuit ...

Page 16 - Appendix A - Troubleshooting

Appendix A - Troubleshooting OMG-ULTRA-SIO Page 12 Appendix A - Troubleshooting Serial Utility test software is supplied with 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 ne...

Page 18 - Appendix B - How To Get Assistance

Appendix B - How To Get Assistance OMG-ULTRA-SIO Page 14 Appendix B - How To Get Assistance Please refer to Troubleshooting 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. 2. When calling ...

Page 19 - Appendix C - Electrical Interface; Active

Appendix C – Electrical Interface OMG-ULTRA-SIO Page 15 Appendix C - Electrical Interface RS-422 The RS-422 specific ation defines the electrical characteristics of balanced voltage digital interface circuits. RS-422 is a differential interface that defines voltage levels and driver/receiver electri...

Page 20 - Appendix D - Ground Loop Phenomenon; Isolation

Appendix D - Ground Loop Phenomenon OMG-ULTRA-SIO Page 16 Appendix D - Ground Loop Phenomenon What is Ground Loop? Ground loop Phenomenon occurs when two (or more) pieces of equipment are connected together with a common ground and a different ground potential exists at each location. This current c...

Page 21 - Appendix E - Asynchronous Communications

Appendix E - Asynchronous Communications OMG-ULTRA-SIO Page 17 Appendix E - Asynchronous Communications Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character. Data rate, error checking, handsha...

Page 23 - Appendix G - Compliance Notices; Federal Communications Commission Statement; Warning

Appendix G - Compliance Notices OMG-ULTRA-SIO Page 19 Appendix G - 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 FCC Rules. These limits are designed to pr...

Page 24 - RETURN REQUESTS/INQUIRIES; WARRANTY

WARRANTY/ DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for aperiod of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping...