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Omega Vehicle Security OMG-COMM2-EX manual

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Table of contents for the manual

  • Page 1

    www .omega.com e-mail: info@omega.com U ser ’ s Guide OMG-COMM2-EX Dual Por t ISA RS-232/422/485 Inter face Board Shop online at[...]

  • Page 2

    Servicing Nor th America: USA: One Omega Drive, P.O. Box 4047 ISO 9001 Certified Stamford CT 06907-0047 TEL: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1, Canada TEL: (514) 856-6928 FAX: (514) 856-6886 e-mail: info@omega.ca For immediate technical or application assistance: USA and Canada: Sale[...]

  • Page 3

    Contents I NTRODUCTION ..........................................................................1 O VERVIEW ................................................................................................ 1 W HAT ’ S I NCLUDED ................................................................................ 1 F ACTORY D EFAULT S ETTINGS .........[...]

  • Page 4

    RS - 232 ..................................................................................................... 12 RS - 422 ..................................................................................................... 12 RS - 485 ..................................................................................................... 13 A PPENDI[...]

  • Page 5

    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. What’s Included The OMG - COMM2 - EX is shippe[...]

  • Page 6

    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. Be careful when selecting the base address as som[...]

  • Page 7

    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’. If any port is disabled, be sure to disable the interrupt request for that port by r[...]

  • Page 8

    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. ‘ S ’ Indicates the ( S )hared interrupt mode, wh ich allo[...]

  • Page 9

    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. Setting the adapter in this configuration when it is not accompanied by a pull - down resistor will prevent the ports from triggering an interr[...]

  • Page 10

    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. The OMG - COMM2 - EX contains several jumper straps for each port which must be set for proper operation prior to installing t[...]

  • Page 11

    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. Features • Full independent operation of ports allowing two ports RS - 232, two ports RS - 422/485 or[...]

  • Page 12

    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 Ground 5 RD Receive Data 2 In put DCD Data Carrier Detect 1 Input DSR Data Set Ready 6 Input CTS Clear To Send 8 Input RI Ring Indicator 9 Input Note: The[...]

  • Page 13

    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.H. Non - Condensing Manufacturing • IPC 610 - B Class - III standards are adhered to wi[...]

  • Page 14

    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. 1. Identify all [...]

  • Page 15

    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. 2. When calling for technical assistance, please have your use[...]

  • Page 16

    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. The IBM PC computer defined the RS - 232 port on a 9 pin [...]

  • Page 17

    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). This capability allows multiple ports to be connected in a mul[...]

  • Page 18

    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. Data rate, error checking, handshaking, and character framing (start/stop bits) [...]

  • Page 19

    Appendix E - Silk - Screen OMG - COMM2 - EX Page 15 Appen dix E - Silk - Screen 3.9" 6.9" 4.2"[...]

  • Page 20

    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. These limits are designed to provide reasonable protection against harmful i[...]

  • Page 21

    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. This ensures that OME GA ?[...]

  • Page 22

    M1691/0303 Where Do I Find Ever ything I Need for Pr ocess Measurement and Control? OM EGA…Of Course! Shop online at www .omega.com TEMPERA TURE   Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies   Wire: Thermocouple, RTD & Thermistor   Calibrators & Ice Point References   Recorders, C[...]