OMG-COMM8 operator`s manual
Contents
1. ld sn zn SYZSTWL g S ves vy2STwL q 19 3 EC QUID za 799091 610 O10 zezga9 S ZeZ6L00 C al ozo S19 Td c zezg209 I zezsz09 S en Ela JR 85 PE kay 910 AK ZEZSLO9 SE zezsz00 amp a Ea gt C n Tz Lo E ZEZSLOD zezsz00 5 Laia gt gt yn 20 815 vid 59 zd 12 zo SIZILIBLL ODS 2 TG oeezox 10 9 Sd ga SIZILIBLLOS EZ 0 Le gt ZH Cu siuuareserr va vol vay 19 63 NUNDU EAZI DYA y Bagn O F gt OG NSN WSN SITILIDLL 9G YET 9 8 dIQZHOLIMS G L LMS el gizILL LL 9 SYED 63 22 sa Cr QUID 9d ala 0 IINGIE 13 80 ou 98 Le SIZILIDLA IG YEZ gu a YSN NI 3OVA mr L661 LHOIMAOD QHANOD O Ady BYE z3 3 vd ca 93 13 83 3 9 Page 18 OMG COMMS A ineering Omega Eng Appendix G Compliance Notices 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 provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance2. Gently insert the OMG COMMS A into the slot Make sure that the adapter is seated properly Replace the screw Install the Octopus Cable Replace the cover Connect the power cord Pes OSLO Installation is complete Operating System Installation Windows 3 x Windows 95 Windows NT Please refer to the WINDOWS sub directory on the Serial Utilities Diskette for help files and current information on the installation of the OMG COMMBS A in these operating systems OS 2 Please refer to the OS2 sub directory on the Serial Utilities Diskette for application notes on the installation of the OMG COMMBS A in this operating system QNX Please refer to the QNX sub directory on the Serial Utilities Diskette for application notes on the installation of the OMG COMMBS A in this operating system Omega Engineering OMG COMMS A Page 8 Technical Description Technical Description The Sealevel OMG COMMBS A provides 8 additional serial ports for terminals modems printers etc The OMG COMMS A utilizes the 16550 UART chip This chip features programmable baud rate data format interrupt control and a 16 byte FIFO Features e Eight RS 232 Ports with full modem control signals e PAL addressing option allowing Turn Key configurations e Selectable Sharable Interrupts IRQ s 2 9 7 10 11 12 amp 15 e Interrupt status port for Windows NT listed in the NT Hardware compatibility list and Green Leaf C
3. the Startech 16C654 UART This UART has a significantly larger FIFO 64 bytes as opposed to the 16 of the 16C554 The OMG COMMS A equipped in this manner can be ordered as the part number 3421 The 3421 has a 7 3728 MHz oscillator as opposed to the standard 1 8432 MHz oscillator that allows data rates up to 460 8 K bps To use the 3421 with a standard communications package or to achieve standard data rates 1 e 1200 2400 9600 115 2K simply select a data rate that is your target data rate divided by 4 For example if you need a data rate of 9600 you would choose 2400 9600 4 2400 The following table shows some common data rates and the rates you should choose to match them For this Data Rate Choose this Data Rate 1200 bps 300 bps 2400 bps 600 bps 4800 bps 1200 bps 9600 bps 2400 bps 19 2K bps 4800 bps 38 4K bps 9600 bps If your communications package allows the use of Baud rate divisors choose the appropriate divisor from the following table For this Data Rate Choose this Divisor 1200 bps 384 2400 bps 192 4800 bps 96 9600 bps 48 19 2K bps 24 38 4K bps 12 57 6K bps 8 115 2K bps 4 230 4K bps 2 460 8K bps 1 Omega Engineering OMG COMMS A Page 17 Appendix F Silk Screen Appendix F Silk Screen 42 84 80 d 32
4. more than one OMG COMMBS A or a compatible adapter in a bus you should only have one port set to M The following example shows all four ports sharing a single IRQ E10 7 EH 5 s O MN md 6 NSMNSM 3 0 MN mn 2 4 E E9 Figure 5 Header E9 and E10 Shared IRQ Mode Set jumper to S if you are using more than one OMG COMMBS A in a bus or you wish to completely remove the pull down resistor for hardware compatibility Setting the OMG COMM8 A in this configuration when it is not accompanied by a pull down resistor will prevent the ports from triggering an interrupt E10 7 O O OO 5 3 OE O CO 6 NS MNS M 3 0 CO 4 0 OO E9 Figure 6 Header E9 and E10 Sharing IRQ s with another adapter Omega Engineering OMG COMMS A Page 7 Installation Installation The OMG COMMS A can be installed in any of the full size PC expansion slots but to access the AT or E ISA IRQs 10 11 12 15 it must be installed in one of the 16 bit slots The OMG COMMS A contains several jumper straps for each port that must be set for proper operation prior to installing the OMG COMMBS A into the computer Turn off PC power Disconnect the power cord Remove the PC case cover Locate an available slot and remove the blank metal slot cover
5. rights reserved Introduction Introduction Overview The Omega Engineering OMG COMMS8 A provides the PC with eight RS 232 asynchronous ports The OMG COMMBS A allows for connection to any device utilizing the RS 232 electrical interface such as modems data entry terminals and plotters What s Included The OMG COMMB8 A is shipped with the following items If any of these items are missing or damaged contact the supplier OMG COMMS A Serial I O Adapter Octopus Cable providing 8 DB 25 connectors 3 5 Serial Utility Diskette User Manual Factory Default Settings The OMG COMM838 A factory default settings are as follows Ports 20 Pote AA Omega Engineering OMG COMMS A Page 1 Introduction To install the OMG COMMS A using factory default settings refer to the Installation section of this manual For your reference record installed OMG COMMBS A settings below The following table shows which port is connected to which connector and the corresponding address in the Factory Default setting 1 1 Baser0 280 287 6 6 Base 40 2A82AF 8 3 Base 56 2B8 2BF Omega Engineering OMG COMMS A Page 2 Card Setup Card Setup The OMG COMMB8 A contains several jumper straps that must be set for proper operation Address Selection The OMG COMMBS A occupies 64 I O locations and can be addressed two different ways If header El is set to the Switch position the OM
6. selected Omega Engineering OMG COMMS A Page 5 Card Setup Interrupt Mode Options The OMG COMMS8 A will allow each port to have an independent interrupt level or share an interrupt with another port on the adapter The OMG COMMBS A will even share interrupts with a compatible port that is located on another adapter The OMG COMMB8 A can operate in three interrupt modes Header E9 determines the interrupt mode for Ports 1 4 and header E10 determines the interrupt mode for ports 5 8 N indicates the Normal single interrupt per port mode S Indicates the S hared interrupt mode which allows more than one port to access a single IRQ Any two or more ports can share a common IRQ by placing the jumpers on the same IRQ setting and setting the appropriate selections at E5 Consult your particular software for IRQ selection If no interrupt is desired remove the jumper M indicates the inclusion of a 1K ohm pull down resistor required on one port when sharing interrupts E10 7 a 5 S 6 NSM NSM 3 En HN 2 4 MN Ez 1 E9 Figure 4 Header E9 and E10 Normal IRQ Mode Omega Engineering OMG COMMS A Page 6 Card Setup Set jumpers to S for shared interrupt mode on all blocks sharing an IRQ except one Set that port block for M This provides the pull down resistor circuit that makes sharing of IRQ possible If you are using
7. with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in such case the user will be required to correct the interference at his own expense EMC Directive Statement Products bearing the CE Label fulfill the requirements of the EMC directive 89 336 EEC and of the low voltage directive 73 23 EEC issued by the European Commission To obey these directives the following European standards must be met e EN55022 Class A Limits and methods of measurement of radio interference characteristics of information technology equipment e EN50082 1 Electromagnetic compatibility Generic immunity standard Part 1 Residential commercial and light industry e EN60950 IEC950 Safety of information technology equipment including electrical business equipment Warning This is a Class A Product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Always use cabling provided with this product if possible If no cable is provided or if an alternate cable is required use high quality shielded cabling to maintain compliance with FCC EMC directives Omega Engineering OMG COMMS A Page 19 Warranty Warranty Omega Engineering Inc warrants this product to be in good working order for a period of one year
8. with your printer I O adapter 3B0 cannot be used if a Monochrome adapter is installed 3F8 3FF is typically reserved for COM1 2F8 2FF is typically reserved for COM2 3E8 3EF is typically reserved for COM3 2E8 2EF is typically reserved for COM4 7 Please refer to your included diskette for any postproduction manual updates and application specific information 8 Always use the Omega Engineering diagnostic software when troubleshooting a problem This will eliminate the software issue from the equation Omega Engineering OMG COMMS A Page 13 Appendix B How To Get Assistance Appendix B How To Get Assistance Please refer to Appendix A Troubleshooting prior to calling Technical Support 1 Read this manual thoroughly before attempting to install the adapter in your system 2 When calling for technical assistance please have your user manual and current adapter settings If possible please have the adapter installed in a computer ready to run diagnostics 3 Omega Engineering maintains a Home page on the Internet Our home page address is www sealevel com The latest software updates and newest manuals are available via our FTP site that can be accessed from our home page 4 Technical support is available Monday to Friday from 8 30 a m to 6 00 p m Eastern time Technical support can be reached at 800 826 6342 x2295 RETURN AUTHORIZATION MUST BE OBTAINED FROM OMEGA ENGINEERING BEFORE RETURNED MERCHANDISE WI
9. Assignments DB 78 Connector Pin Assignments Port 1 2 3 4 5 TIA EA AA ES A E MS 2760 11915121517 cm 16 132 7 23 55 pr Ja papa jas pr js jajaj oo as pipas pi 0 o e ao OR 5 33 6 24 54 72 45 63 Figure 8 DB 78 Connector Pin Assignments Omega Engineering OMG COMMS A Page 10 Specifications Specifications Environmental Specifications Temperature 0 to 50 C 20 to 70 C Range 32 to 122 F 4 to 158 F Humidity Range 10 to 90 R H 10 to 90 R H Non Condensing Non Condensing Manufacturing e IPC 610 A Class III standards are adhered to with a 0 1 visual A Q L and 100 Functional Testing e All Omega Engineering Printed Circuit boards are built to U L 94V0 rating and are 100 electrically tested These printed circuit boards are solder mask over bare copper or solder mask over tin nickel Power Consumption 12 VDC Mean Time Between Failures MTBF Greater than 150 000 hours Calculated Physical Dimensions Board length 8 0 inches 20 32 cm Board Height including Goldfingers 4 2 inches 10 66 cm Board Height excluding Goldfingers 3 9 inches 9 91 cm Omega Engineering OMG COMMS A Page 11 Appendix A Troubleshooting Appendix A Troubleshooting A Serial Utility Diskette is supplied with the Omega Engineering adapter and will be used in the troubleshooting procedures By using this diskette and following these simple steps most co
10. Contents INTRODUCTION Sucina national OVER VEW ikakaa 1 WHAT S INCLUDED occcncnncccnnnnioccnnnnoccnnoncnnonoccnnonononccnonacncnnananconanos 1 FACTORY DEFAULT SETTINGS occccconoccnnonoccnnonoconcnnocnnnococonnnnnccnnnno 1 CARD SETUP ii ADDRESS SELECTION ccccccssssccessseccevscecsecececcessvesensevssensevesenses 3 PAL ADDRESSING cccccccceseccccesecccceccseceeecescueeceseueeceseneesenes 4 IRQ SELECTION inkaene ieirik dernest 5 INTERRUPT MODE OPTIONS cccooocnccnnonoccnnonoccnnonioccnnconnonanocinnnnaninnnns 6 OPERATING SYSTEM INSTALLATION cccseeccccceseceeeeseseuseseeeneees 8 Windows 3 x Windows 95 Windows NT ccccceeeeeeeeeee 8 OSD Gren SE 8 ON see aon dee Gene hat tone MO natt 8 TECHNICAL DESCRIPTION ccssccccsssssscccccsscccccsscscccccsscccccees I REATURES Tren tt e tetteste tendens 9 INTERRUPT STATUS PORT occcnncccnnnnoccnnnnoconnnnoccnnnnorononanccnnnnanonanonos 9 DB 25 CONNECTOR PIN ASSIGNMENTS occconocccnonoccnnnnoccnnnniconnnns 10 DB 78 CONNECTOR PIN ASSIGNMENTS cccccseeceseseseeeesecseeees 10 SPECIFICATIONS ss sssso LL ENVIRONMENTAL SPECIFICATIONS ccccccesecccceeececeeseceseeeecseenes 11 MANUFACTURING uni 11 POWER CONSUMPTION csceccccesecccceseccecesececeueecsseusecsesseecseenes 11 MEAN TIME BETWEEN FAILURES MTBEF e e 11 PHYSICAL DIMENSIONS ooocccconoccnnono
11. G COMMB8 A occupies 64 consecutive I O locations and the DIP switch is used to set the base address for these locations The starting address for these 64 I O locations must be on a 64 byte boundary i e Hex 200 240 280 or 2C0 Be careful when selecting the base address as some selections conflict with existing PC ports The following table shows several examples that usually do not cause a conflict Address Switch Position Setting a AA En Figure 1 Address Selection Table Note Some of these selections may not be valid for your system due to port contention If in doubt call Sealevel Technical Support 864 843 4343 for assistance These addressing restrictions are simplified when using the PAL option Note If Xenix is the operating system and COMI is not installed use base address 500 Hex and IRQ 4 Xenix COM1 If COM1 is installed then select 580 Hex as a base address and IRQ 3 Xenix COM2 Omega Engineering OMG COMMS A Page 3 Card Setup The following illustration shows the correlation between the DIP switch setting and the address bits used to determine the base address In the example below address 280 Factory Default is selected as a base A12 A6 ON 123 2A OS AN Figure 2 DIP switch Illustration Note Setting the switch On or Closed corresponds to a 0 in the address while leaving it Off or Open corresponds to a 1 Refer to Appendix A for com
12. LL BE ACCEPTED AUTHORIZATION CAN BE OBTAINED BY CALLING OMEGA ENGINEERING AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION RMA NUMBER Omega Engineering OMG COMMS A Page 14 Appendix C Electrical Interface Appendix C Electrical Interface RS 232 Quite possibly 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 C D E or EIA TIA 232 C D E It is defined as Interface between Data Terminal Equipment and Data Circuit Terminating Equipment Employing Serial Binary Data Interchange The mechanical implementation of RS 232 is on a 25 pin D sub connector The IBM PC computer defined the RS 232 port on a 9 pin D sub connector and subsequently the EIA TIA approved this implementation as the EIA TIA 574 standard This standard has defined as the 9 Position Non Synchronous Interface between Data Terminal Equipment and Data Circuit Terminating Equipment Employing Serial Binary Data Interchange Both implementations are in wide spread use and will be referred to as RS 232 in this document RS 232 is capable of operating at data rates up to 20 Kbps 50 ft The absolute maximum data rate may vary due to line conditions and cable lengths RS 232 often operates at 38 4 Kbps over very short distances The voltage levels defined by RS 232 range from 12 to 12 volts RS 232 is a single ended or unbalanced interface meaning that a single electric
13. OM libraries e 8 DB 25 male connectors provided using the Omega Engineering Octopus Cable Interrupt Status Port The OMG COMMS8 A provides the user with an Interrupt Status Port ISP for greater throughput when servicing multiple ports on a single interrupt line The ISP is a read only 8 bit register that sets a corresponding bit when an interrupt is pending Port 1 interrupt line corresponds with Bit DO of the status port Port 2 with D1 etc The ISP can be addressed two different ways If header E11 is in the Switch position the Status Register is located at Base 7 on each port Example Base 280 Hex Status Port 287 28F etc This allows any one of eight locations to be read to obtain the value in the status register All eight status ports on the OMG COMMB8 A are identical so any one of the eight can be read If header E11 is in the PAL position the status port can be addressed at any location Please contact Omega Engineering for information on PAL programming and custom configurations Example This indicates that Channel 2 has an interrupt pending Bit Position 716 15 14 3 12 1 0 Value Read 010 JO 0 JO O 1 0 Omega Engineering OMG COMMS A Page 9 Technical Description DB 25 Connector Pin Assignments oo poa o a II Transmit Data 2 Output MEO O EN a RD ReceiveData 3 Input DSR DataSetReady 6 np DCD Data Carrier Detect 8 Input Figure 7 DB 25 Connector Pin
14. al signal is compared to a common signal ground to determine binary logic states A voltage of 12 volts usually 3 to 10 volts represents a binary 0 space and 12 volts 3 to 10 volts denotes a binary 1 mark The RS 232 and the EIA TIA 574 specification define two types of interface circuits Data Terminal Equipment DTE and Data Circuit Terminating Equipment DCE The Omega Engineering Adapter is a DTE interface Omega Engineering OMG COMMS A Page 15 Appendix D Asynchronous Communications Appendix D 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 handshaking and character framing start stop bits are pre defined and must correspond at both the transmitting and receiving ends Asynchronous communications is the standard means of serial data communication for PC compatibles and PS 2 computers The original PC was equipped with a communication or COM port that was designed around an 8250 Universal Asynchronous Receiver Transmitter UART This device allows asynchronous serial data to be transferred through a simple and straightforward programming interface Character boundaries for asynchronous communications are defined by a starting bit followed by a pre defined number of data bits 5 6 7 or 8 The end of the character is defined by the transmissio
15. ccnnonoccnnnnnccnnonoronnnnarincnnaninnnns 11 APPENDIX TROUBLESHOOTING cccccsccsscsscccscccccsecsees 12 APPENDIX B HOW TO GET ASSISTANCE 00 14 APPENDIX C ELECTRICAL INTERFACE s 0 ee 15 APPENDIX D ASYNCHRONOUS COMMUNICATIONS 16 APPENDIX E 3421 ADDENDUM cccccscccscccssccscccscccsccccccce 17 APPENDIX F SILK SCREEN cccsssscscccsssssccccsssscccssscsscesseccee APPENDIX G COMPLIANCE NOTICES ss0000s0000 19 FEDERAL COMMUNICATIONS COMMISSION STATEMENT 19 EMC DIRECTIVE STATEMENT ocoooccccnnnnoccnnonocononnoconnnicnnanineninananos 19 Figures Figure 1 Address Selection Table seovovnnveennvevnnvevennnneennneennnnvenevenneeen 3 Figure 2 DIP switch Ilustration seesooosvveeveveennvevenvnneennnevnneeneneeennneen 4 Figure 3 Headers El to ES IRQ15 selected lt sew00emee 5 Figure 4 Header E9 and E10 Normal IRQ Mode sssesse0ese 6 Figure 5 Header E9 and E10 Shared IRQ Mode eeesesvvesevvvvesseseveenene 7 Figure 6 Header E9 and E10 Sharing IRQ s with another adapter 7 Figure 7 DB 25 Connector Pin Assignment ssseeeseees0eeese 10 Figure 8 DB 78 Connector Pin Assignment ooccooonoononconnnononncoonanconns 10 Figure 9 Asynchronous Communications Bit Diagram 16 1997h Omega Engineering Incorporated All
16. from the date of purchase Should this product fail to be in good working order at any time during this period Omega Engineering will at it s option replace or repair it at no additional charge except as set forth in the following terms This warranty does not apply to products damaged by misuse modifications accident or disaster Omega Engineering assumes no liability for any damages lost profits lost savings or any other incidental or consequential damage resulting from the use misuse of or inability to use this product Omega Engineering will not be liable for any claim made by any other related party RETURN AUTHORIZATION MUST BE OBTAINED FROM OMEGA ENGINEERING BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED AUTHORIZATION CAN BE OBTAINED BY CALLING OMEGA ENGINEERING AND REQUESTING A RETURN MERCHANDISE AUTHORIZATION RMA NUMBER Omega Engineering Incorporated PO Box 4047 One Omega Drive Stamford CT 06907 800 826 6342 FAX 203 359 7990 email Internet das omega com WWW Site www omega com Technical Support is available from 8 30 a m to 6 p m Eastern time Monday Friday Trademarks Omega Engineering Incorporated acknowledges that all trademarks referenced in this manual are the service mark trademark or registered trademark of the respective company OMG COMMB8 A is a trademark of Omega Engineering Incorporated Omega Engineering OMG COMMS A Page 20
17. mmon problems can be eliminated without the need to call Technical Support 1 Identify all I O adapters currently installed in your system This includes your on board serial ports controller cards sound cards etc The I O addresses used by these adapters as well as the IRQ if any should be identified Configure your Omega Engineering adapter so that there is no conflict with currently installed adapters No two adapters can occupy the same I O address Make sure the Omega Engineering adapter is using a unique IRQ While the Omega Engineering adapter does allow the sharing of IRQs many other adapters i e SCSI adapters amp on board serial ports do not The IRQ is typically selected via an on board header block Refer to the section on Card Setup for help in choosing an I O address and IRQ Make sure the Omega Engineering adapter is securely installed in a motherboard slot Use the supplied diskette and User Manual to verify that the Omega Engineering adapter is configured correctly The supplied diskette contains a diagnostic program SSD that will verify if an adapter is configured properly This diagnostic program is written with the user in mind and is easy to use Refer to the README file on the supplied diskette for detailed instructions on using SSD Omega Engineering OMG COMMS A Page 12 Appendix A Troubleshooting 6 The following are known I O conflicts e The 278 and 378 settings may conflict
18. mon address contentions PAL Addressing If header E11 is set to the PAL position the board can be addressed at many customized locations Using the PAL option will allow you to obtain COM1 COM4 addresses XENIX COM addresses or any other standard or nonstandard address configuration Using the PAL feature is a very cost effective means of solving complex addressing problems For more information on implementing the PAL option please contact Omega Engineering Technical Support Omega Engineering OMG COMMS A Page 4 Card Setup IRQ Selection The OMG COMMBS A has an interrupt selection jumper that corresponds to each port that may have to be set prior to use The software you are using with the board will determine which interrupts if any are to be used The DOS serial port interface software does not use interrupts while interrupt buffer programs do DOS does not require the interrupt to be set while most Multi User Operating Systems will Consult the particular manual for the software that you are using to determine the proper setting To set the interrupt for a particular port first select the header for the port desired Headers El E8 correspond to Ports 1 8 Next select an IRQ by placing one of the jumpers on the header location that corresponds to the IRQ number that you wish to use Below is an example of a selected IRQ pr pur 2 3 45 6 71011 12 15 Figure 3 Headers El to ES IRQ15
19. n of a pre defined number of stop bits usual I 1 5 or 2 An extra bit used for error detection is often appended before the stop bits Idle state of Odd Even ed gt 10 8 Data Bits nuse AA 1 o AOR a I T po rro 1 l I 1 l 1 ler 199 1 des Sa eo Dace JE J ilo 0 l et m fl pia 1 he 2 Figure 9 Asynchronous Communications Bit Diagram This special bit is called the parity bit Parity is a simple method of determining if a data bit has been lost or corrupted during transmission There are several methods for implementing a parity check to guard against data corruption Common methods are called E ven Parity or O dd Parity Sometimes parity is not used to detect errors on the data stream This is referred to as N o parity Because each bit in asynchronous communications is sent consecutively it is easy to generalize asynchronous communications by stating that each character is wrapped framed by pre defined bits to mark the beginning and end of the serial transmission of the character The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends The communication parameters are baud rate parity number of data bits per character and stop bits i e 9600 N 8 1 Omega Engineering OMG COMMS A Page 16 Appendix E 3421 Addendum Appendix E 3421 Addendum The OMG COMMB8 A can be equipped with a higher speed oscillator and
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