7201 User Manual - Sealevel Systems, Inc
Contents
1. 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 A start bit followed by a pre defined number of data bits 5 6 7 or 8 defines character boundaries for asynchronous communications The end of the character is defined by the transmission of a pre defined number of stop bits usually 1 1 5 or 2 An extra bit used for error detection is often appended before the stop bits Idle state of Odd Even line or E 5 to 8 Data Bits sd Femaln idie or 4 Za gy Y a T A RE a tl l l l 1 ler STOP 1 es A Usost AS A E J ytd 0 l te mis 11 Hots Lk 2 Figure 11 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 transmission2. SYSTEMS INCORPORATED ULTRA COMM 2 PCT Users Manual Part 7201 Sealevel Systems Inc Telephone 864 843 4343 PO Box 830 Fax 864 843 3067 Liberty SC 29657 USA www sealevel com Contents INTRODUCTION sscdccsccssccsesdcccosscccccesckvcdecsncdeecesecsedeosscacccuscavedocsoedeecedeadedeossciccosbcsvesocasedecccbcasesceasl COVER VIE a aa A E al 1 WHATS INCLUDED A WA e ac Md 1 EACTORY DEFAULT SETTINGS aio cs 1 GARD SETUP ii aio ilatina 2 RS 485 ENABLEMODES cout in A nok ee A A Ae E 2 ADDRESS AND IRQ SELECTION ii iaa 3 LINE PERMINA TION AAE oho EEE he Sol LN IN Ne SEN as 4 ELECTRICAL INTERFACE SELECTION ccccccesssscecsessececesccecsesseeeceesaesecseaeeceesueeecsesaececeaeesessaeeessesaeseceeaaess 5 CLOCK MODES croa a 6 CLOCK MODES Ie 6 BAUD RATES AND DIVISORS FOR THE DIVI MODE c cccccssscccssssececsseeeceeseeecseseececeeeeecesseeecsesaeeesssaaees 7 BAUD RATES AND DIVISORS FOR THE DIV2 MODE c cccssssssecesssececseeeecessneeecsesaececseaeeeeeseeecseaeeecseaaess 8 CONNECTOR PIN ASSIGNMENTS rel a eee Gok goaise e ed atk Sous Sk da ce a Heaae a Dea a SCORE aah NSH Sak dhe 12 RS 232 DB 9 MALE daa 12 RS2422 485 DB 9 A A 12 SPECIFICATIONS ssacssedsiessscdssacsicsasenssecssacseodecees0u0sdaceesdasousescsdacvacdescesescstessacdasensoacssassscdscendescsdeo 19 ENVIRONMENTAL SPECIFICATIONS fos A 13 MANUFACTURING a 13 POWER CONSUMPTION e ean 13 PHYSICAL DIMENSIONS scott A Ad WLM iin co
3. 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 refereed 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 Sealevel Systems ULTRA COMM 2 PCI Page 17 Appendix E Silk Screen Appendix E Silk Screen nr Ay iS N s E RS232 N ma OS Bory E ae Q nN W a a z y a al O Y D D gt Oo is ol o E N m a UA gt a a N N 2 6 J W N E u N 2 2 _ gt 00 O Sp sa v ve Y Es 4 a oO E A E RT zu Da A ORTA Ni RG s lt DNA gt gt 5 c s E a ae ee ee G Se A lt I 2 d gt a A Ko a Y oO RI a N N a gt S 5 8 NE x Ww A de A ul o f gt S 2 N o 0 mn a O on SS On Q J U o EA m m 00 ie U oO ES o lt 2 o N uD O o o0 2 No Wil t N
4. RTS Enabled with No Echo cssccscscssssecsscesssceesseessesees 3 Figure 5 Headers J1B and J2B RS 485 RTS Enabled with Echo ccsscsssssccssssssecsseeesseessseeesssees 3 Figure 6 Headers J1A and J2A Line Termination scsscsscccsssssscssessssssssssssssssssessssesesesssssseeessonsoess 4 Figure 7 Headers El E4 Electrical Interface Selection csscsscsssesssessesssessssssssssessesesssseesssssnsecnseess 5 Figure 8 Clocking Mode Divide By 4 cssssssssssssssesscsssssessssssssvssesssesssssssssssnsssssssessesssesscsseesseeseessonss 6 Figure 9 Clocking Mode Divide By 2 ssscssssssssssssesssesssssecsscsssesesssessssessnesenesssesssesseessenssessseseeeseessones 6 Figure 10 Clocking Mode Divide By 1 sscssscsssssssssscessssssessscsssssesssessssesssesenessssesesssecssescesseessoeseesseess 6 Figure 11 Asynchronous Communications Bit Diagram csccsscsesssecsssssssssscssscsessssscssessssssessessens 17 Sealevel Systems Inc SL9058 Revision 7 2006 Sealevel Systems Incorporated All rights reserved Introduction Introduction Overview The Sealevel Systems ULTRA COMM 2 PCI is a two channel PCI Bus serial I O adapter for the PC and compatibles It provides two field selectable RS 232 422 485 serial ports supporting data rates up to 460 8K bps Configure both ports as RS 232 for standard serial COM port requir
5. These assignments meet EIA TIA ANSI 574 DTE for DB 9 type connectors Technical Note Please terminate any control signals that are not going to be used The most common way to do this is connect RTS to CTS and RI Also connect DCD to DTR and DSR Terminating these pins if not used will help insure you get the best performance from your adapter EEN CA RS 422 485 DB 9 Male GND_ Groond S RTS Request To Send Positive 6 Output CTS Clear To Send Positive 9 Input CTS Clear To Send Negative 8 Input Sealevel Systems ULTRA COMM 2 PCI Page 12 Specifications Specifications Environmental Specifications Specification Operating Temperature 0 to 70 C 50 to 105 C Range 32 to 158 F 58 to 221 F 10 to 90 R H Non Condensing 10 to 90 R H Non Condensing Manufacturing All Sealevel Systems Printed Circuit boards are built to UL 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 Supply line 12VDC 12VDC 5 VDC 480 mA Physical Dimensions Board length 5 0 inches 12 7 cm Board Height including Goldfingers 4 2 inches 10 66 cm Board Height excluding Goldfingers 3 875 inches 9 841 cm Sealevel Systems ULTRA COMM 2 PCI Page 13 Appendix A Troubleshooting Appendix A Troubleshooting Sealevel Software is supplied with the Sealevel
6. an interruption such as the press of a key on the keyboard A good analogy of a PC interrupt would be the phone ringing The phone bell is a request for us to stop what we are currently doing and take up another task speak to the person on the other end of the line This is the same process the PC uses to alert the CPU that a task must be preformed The CPU upon receiving an interrupt makes a record of what the processor was doing at the time and stores this information on the stack this allows the processor to resume its predefined duties after the interrupt is handled exactly where it left off Every main sub system in the PC has it s own interrupt frequently called an IRQ short for Interrupt ReQuest The following IRQ table will define the system IRQs as well as show typically free IRQs In these early days of PC s Sealevel Systems decided that the ability to share IRQs was an important feature for any add in I O card Consider that in the IBM XT the available IRQs were IRQO through IRQ7 Of these interrupts only IRQ2 5 and IRQ7 were actually available for use This made the IRQ a very valuable system resource To make the maximum use of these system resources Sealevel Systems devised an IRQ sharing circuit that allowed more than one port to use a selected IRQ This worked fine as a hardware solution but presented the software designer with a challenge to identify the source of the interrupt The software designer frequently us
7. 5 2K bps 230 4K bps Sealevel Systems ULTRA COMM 2 PCI Page 8 Installation Installation Operating System Installation Windows 95 98 ME NT 2000 XP Do not install the Adapter in the machine until the software has been fully installed 1 Start Windows 2 Insert the Sealevel Systems CD in to your CD drive 3 If Auto Start is enabled for this drive the software will automatically launch Otherwise point your browser to the Index htm on the root directory of the CD 4 Select Install Software 5 Select the Part Number for your adapter from the listing 6 Select Windows 98 ME 2000 XP The setup file will automatically detect the operating environment and install the proper components Next depending on the OS version select the Run this program from its current location or Open option Follow the information presented on the screens that follow 7 A screen may appear with the declaration The publisher cannot be determined due to the problems below Authenticode signature not found Please select the Yes button and proceed with the installation This declaration simply means that the Operating System is not aware of the driver being loaded It will not cause any harm to your system 8 During setup the user may specify installation directories and other preferred configurations This program also adds entries to the system registry that are necessary for specifying the oper
8. Gently insert the PCI adapter into the slot Make sure that the adapter is seated properly Replace the screw This is required to ensure FCC Part 15 compliance Replace the cover Connect the power cord Installation is finished Sealevel Systems ULTRA COMM 2 PCI Page 10 Technical Description Technical Description The Sealevel Systems ULTRA COMM 2 PCI provides a PCI interface adapter 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 and control applications The ULTRA COMM 2 PCI utilizes the 16550 UART This chip features programmable baud rates data format interrupt control and a 16 byte input and output FIFO Also available as options are the 16C650 16C750 and 16C850 UART s that provide deeper FIFO s 32 64 128 bytes respectively and enhanced clocking features Interrupts A good description of an interrupt and its importance to the IBM PC can be found in the book Peter Norton s Inside the PC Premier Edition One of the key things that makes a computer different from any other kind of man made machine is that computers have the capability to respond to the unpredictable variety of work that comes to them The key to this capability is a feature known as interrupts The interrupt feature enables the computer to suspend whatever it is doing and switch to something else in response to
9. OMM 2 PCI Page 1 Card Setup Card Setup In all cases J1x refers to settings for the first port and J2x refer to settings for the second port RS 485 Enable Modes RS 485 is ideal for multi drop or network environments RS 485 requires a tri state driver that will allow the electrical presence of the driver to be removed from the line The driver is in a tri state or high impedance condition when this occurs Only one driver may be active at a time and the other driver s must be tri stated The output modem control signal Request To Send RTS is typically used to control the state of the driver Some communication software packages refer to RS 485 as RTS enable or RTS block mode transfer One of the unique features of the ULTRA COMM 2 PCI is the ability to be RS 485 compatible without the need for special software or drivers This ability is especially useful in Windows Windows NT and OS 2 environments where the lower level I O control is abstracted from the application program This ability means that the user can effectively use the ULTRA COMM 2 PCI in a RS 485 application with existing i e standard RS 232 software drivers Headers J1B and J2B are used to control the RS 485 mode functions for the driver circuit The selections are RTS enable silk screen RT or Auto enable silk screen AT The Auto enable feature automatically enables disables the RS 485 interface The RTS mode uses the RTS mod
10. S o md ed na i 5 N 8 Gi Sealevel Systems ULTRA COMM 2 PCI Page 18 Appendix F Compliance Notices 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 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 accordance 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 the users 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 EN55022 Class A Limits and methods of measurement of radio interference characteristics of information technology equipment EN55024 Information technology equipment Immunity characteristics Limits and methods of measurement EN60950 IEC950 Safety of information technology equipment including electrical bus
11. Systems adapter and may be used in the troubleshooting procedures Using this software and following these simple steps can eliminate most common problems 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 Sealevel Systems adapter so that there is no conflict with currently installed adapters No two adapters can occupy the same I O address Make sure the Sealevel Systems adapter is using a unique IRQ While the Sealevel Systems 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 by the BIOS or Operating system Some BIOS setup software will allow changing the IRQ but others do not Another method of changing assigned resources is to try changing PCI slots This will typically cause the BIOS or OS to reassign the resources Make sure the Sealevel Systems adapter is securely installed in a motherboard slot When running DOS or Windows 3 x refer to the supplied Sealevel Software and this User Manual to verify that the Sealevel Systems adapter is configured correctly This software contains a diagnostic program SSD D software seacom Other DOS DIAG where D the driver letter of your CDROM drive will verify i
12. ating parameters for each driver An uninstall option is also included to remove all registry INI file entries from the system Linux Refer to D software seacom Other Linux Linux serial readme where D your CDROM driver letter found on the Sealevel Systems CD This file contains valuable information on installing your adapter in the various Linux releases Also in this sub directory is the Linux SerialHOWTO This series of files explains typical Linux serial implementations as well as informing the user to Linux syntax and preferred practices QNX Refer to D software seacom Other QNX6 Install readme where D your CDROM driver letter found on the Sealevel Systems CD This file contains valuable information on installing your adapter in the QNX6 Neutrino OS as well as the files required to ensure a flawless implementation Also provided on the Sealevel Systems CD are implementation instructions for QNX4 These are found in D software seacom Other QNX4 QNX_COM txt Sealevel Systems ULTRA COMM 2 PCI Page 9 Installation Physical Installation The adapter can be installed in any 5V PCI expansion slot and contains several jumper straps for each port that must be set for proper Do not install the Adapter in the machine until the software has been fully installed 1 2 3 6 7 Turn off PC power Disconnect the power cord Remove the PC case cover Locate an available PCI slot and remove the blank metal slot cover
13. c eho denen 13 APPENDIX A TROUBLESHOOTING cccccccssssssssscscccccccccscscscccccccecceseccsccccccscccssesccccccccssccsses 14 APPENDIX B HOW TO GET ASSISTANCE ccccsssssssscccccccccccccssccccccccccsescsssccscccccssesescccccccscesees 15 APPENDIX C ELECTRICAL INTERFACE cccccsssssssccsccccccscccsccccscccccesesssccccscccccssesccccccsccscesees LO APPENDIX D ASYNCHRONOUS COMMUNICATIONS cccccsssssssscsccccccccecessccccccsceccesesccccccsseeee 7 APPENDIX E SILK SCREEN sssccsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssces LO APPENDIX F COMPLIANCE NOTICES ccccocssssssssscscccccceccccsccccccccccesesssssccsccsccesescsccccsccscesees LO FEDERAL COMMUNICATIONS COMMISSION STATEMENT cccsseesssececececeesssaeceeececeessssececececsensaeaeeeeeens 19 EMC DIRECTIVE STATEMENT sisi Incas 19 WARRANTY sissssccscccsctscsscteccsdecseddsssiadessccsctdccscesdeacecessddusceadesscdectdusecdadeacedececissuusdesssdectecdecesdeseue ZU Figures Figure 1 Headers J1B and J2B RS 422 ooocnconooononnnonncnnncnnncnnocanocnnconaconnconnoconono nono conn cono cnnncnn nc nocn roca nconnconcoonoss 2 Figure 2 Headers J1B and J2B RS 485 Auto Enabled with No Echo ooocnoocoonioonnccnnonononnncanocanocanoonnons 2 Figure 3 Headers J1B and J2B RS 485 Auto Enabled with Echo onoocnoocoonnoonnconnoonnconncanncanocanocanoonnoons 3 Figure 4 Headers J1B and J2B RS 485
14. d J2B RS 485 RTS Enabled with Echo Address and IRQ selection The ULTRA COMM 2 PCI is automatically assigned I O addresses and IRQs by your motherboard BIOS Only the I O address may be modified by the user Adding or removing other hardware may change the assignment of I O addresses and IRQs Sealevel Systems ULTRA COMM 2 PCI Page 3 Card Setup 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 422 485 input in addition to a 1K ohm pull up pull down combination that biases the receiver inputs Headers JIA and J2A allow the user to customize this interface to their specific requirements Each jumper position corresponds to a specific portion of the interface If multiple ULTRA COMM 2 PCI adapters are configured in a RS 485 network only the boards on each end should have jumpers T P amp P ON Refer to the following table for each position s operation P Adds or removes the 1K ohm pull down resistor in the RS 422 RS 485 receiver circuit Receive data only Adds or removes the 1K ohm pull up resistor in the RS 422 RS 485 receiver circuit Receive data only PPTLL Figure 6 Headers JIA and J2A Line Termination Sealevel Systems ULTRA COMM 2 PCI Page 4 Card Setup Electrical Interface Selection Each port on the ULTRA COMM 2 PCI has the ability to be u
15. d Rates and Divisors for the Div1 mode The following table shows some common data rates and the rates you should choose to match them if using the adapter in the Div1 mode 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 57 6 K bps 14 4K bps 115 2 K bps 28 8K bps 230 4K bps 57 6 K bps 460 8K bps 115 2 K 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 4800 bps 96 9600 bps 48 38 4K bps 57 6K bps 230 4K bps 460 8K bps Sealevel Systems ULTRA COMM 2 PCI Page 7 Card Setup Baud Rates and Divisors for the Div2 mode The following table shows some common data rates and the rates you should choose to match them if using the adapter in the Div2 mode For this Data Rate Choose this Data Rate 1200 bps 600 bps 2400 bps 1200 bps 4800 bps 2400bps 9600 bps 4800 bps 19 2K bps 9600 bps 38 4K bps 19 2K bps 57 6 K bps 28 8K bps 115 2 K bps 57 6 K bps 230 4 K bps 115 2 K 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 192 4800 bps 48 9600 bps 24 19 2K bps 57 6K bps 11
16. does not define a physical connector 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 multi drop bus and selectively polled RS 485 allows cable lengths up to 4000 feet and data rates up to 10 Megabits per second The signal levels for RS 485 are the same as those defined by RS 422 RS 485 has electrical characteristics that allow for 32 drivers and 32 receivers to be connected to one line This interface is ideal for multi drop or network environments RS 485 tri state driver not dual state will allow the electrical presence of the driver to be removed from the line Only one driver may be active at a time and the other driver s must be tri stated RS 485 can be cabled in two ways two wire and four wire mode Two wire mode does not allow for full duplex communication and requires that data be transferred in only one direction at a time For half duplex operation the two transmit pins should be connected to the two receive pins Tx to Rx and Tx to Rx Four wire mode allows full duplex data transfers RS 485 does not define a connector pin out or a set of modem control signals RS 485 does not define a physical connector Sealevel Systems ULTRA COMM 2 PCI Page 16 Appendix D Asynchronous Communications Appendix D
17. ed a technique referred to as round robin polling This method required the interrupt service routine to poll or interrogate each UART as to its interrupt pending status This method of polling was sufficient for use with slower speed communications but as modems increased their through put abilities this method of servicing shared IRQs became inefficient Why use an ISP The answer to the polling inefficiency was the Interrupt Status Port ISP 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 use of this port means that the software designer now only has to poll a single port to determine if an interrupt is pending The ISP is at Base 7 on each port Example Base 280 Hex Status Port 287 28F etc The ULTRA COMM 2 PCI will allow any one of the available locations to be read to obtain the value in the status register Both status ports on the ULTRA COMM 2 PCI are identical so any one can be read Example This indicates that Channel 2 has an interrupt pending Bit Position 7 6 5 4 3 2 1 0 Value Read 0 O O JO JO IO 1 JO Sealevel Systems ULTRA COMM 2 PCI Page 11 Technical Description Connector Pin Assignments RS 232 DB 9 Male Request To Send D a eceive Data Data Set Ready 6 Input Clear To Send __ 8 Input Ring Indicator 9 Input Note
18. em control signal to enable the RS 485 interface and provides backward compatibility with existing software products Position 3 silk screen NE of JIB and J2B is used to control the RS 485 enable disable functions for the receiver circuit and determine the state of the RS 422 485 driver The RS 485 Echo is the result of connecting the receiver inputs to the transmitter outputs Every time a character is transmitted it is also received This can be beneficial if the software can handle echoing i e using received characters to throttle the transmitter or it can confuse the system if the software does not To select the No Echo mode select silk screen position NE For RS 422 compatibility remove the jumpers at JIB and J2B The following examples describe all of the valid settings for J1B and J2B Interface Mode Examples J1B J2B Bee AZ Figure 1 Headers JIB and J2B RS 422 Bee AZ Figure 2 Headers JIB and J2B RS 485 Auto Enabled with No Echo Sealevel Systems ULTRA COMM 2 PCI Page 2 Card Setup AT HN RT NE Figure 3 Headers JIB and J2B RS 485 Auto Enabled with Echo E E x zZ lt Figure 4 Headers JIB and J2B RS 485 RTS Enabled with No Echo e E me lt z Figure 5 Headers JIB an
19. ements Choose the RS 422 mode for long distance device connections up to 4000ft where noise immunity and high data integrity are essential Select RS 485 and capture data from multiple peripherals in a RS 485 multidrop network Up to 31 RS 485 devices can be connected to each port to automate your data collection You can even mix the ports in any of the interface combinations to provide maximum flexibility to your application In both RS 232 and RS 422 modes the card works seamlessly with the standard operating system serial driver In RS 485 mode our special auto enable feature allows the RS 485 ports to be viewed by the operating system as a COM port This allows the standard COM driver to be utilized for RS 485 communications Our on board hardware automatically handles the RS 485 driver enable UART upgrades are available providing 32 64 and 128 byte FIFOs What s Included The ULTRA COMM 2 PCI is shipped with the following items If any of these items are missing or damaged contact the supplier e ULTRA COMM2 2 PCI Serial I O Adapter e Serial Utility Software e User Manual Factory Default Settings The ULTRA COMM 2 PCI factory default settings are as follows Electrical Specification RS 422 RS 422 To install the ULTRA COMM 2 PCI using factory default settings refer to Installation on page 9 For your reference record installed ULTRA COMM 2 PCI settings below Electrical Specification IT Sealevel Systems ULTRA C
20. f an adapter is configured properly This diagnostic program is written with the user in mind and is easy to use You can use D software seacom Other DOS PCI FindPCLexe to determine resources that have been assigned to your adapter Make sure that if available the Use Plug n Play option is turned OFF in your BIOS Having this option set to ON in DOS or Windows 3 x will cause erratic operations For Windows95 98 ME NT 2000 the diagnostic tool WinSSD is installed in the SeaCOM folder on the Start Menu during the setup process First find the ports using the Device Manager then use WinSSD to verify that the ports are functional Remember that a loopback test is not possible with the NE jumper in place Always use the Sealevel Systems diagnostic software when troubleshooting a problem This will eliminate any software issues from the equation Sealevel Systems ULTRA COMM 2 PCI Page 14 Appendix B How To Get Assistance 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 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 Sealevel Systems provides an FAQ section on its web site Please refer to
21. iness 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 to prevent or correct the interference 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 Sealevel Systems ULTRA COMM 2 PCI Page 19 Warranty Warranty Sealevel s commitment to providing the best I O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured products We are able to offer WARRANTY this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field Sealevel products are designed and manufactured at its Liberty South Carolina facility allowing direct control over product development production burn in and testing Sealevel Systems Inc hereafter Sealevel warrants that the Product shall conform to and perform in accordance with published technical specifications and shall be free of defects in materials and workmanship for life In the event of failure Sealevel will repair or replace the product at Sealevel s sole discretion Failures resulting from misapplication or misuse of the Product failure to adhere to any specifications or instructions or failure resulting from neglect or ab
22. rk trademark or registered trademark of the respective company ULTRA COMM 2 PCTI is a trademark of Sealevel Systems Incorporated Sealevel Systems ULTRA COMM 2 PCI Page 20
23. sed in either RS 232 or RS 422 485 This is selectable via four 24 pin DIP shunts at E1 E4 Please use the following illustration to aid in the configuration of your electrical interface 4 ro 8 2 5 E2 ae e C e N e RS 232 RS 422 485 E m mn pa RS 232 and RS 422 485 RS 232 Portl N RS 422 RS 232 Port 2 RS 422 Figure 7 Headers El E4 Electrical Interface Selection Sealevel Systems ULTRA COMM 2 PCI Page 5 Card Setup Clock Modes The ULTRA COMM 2 PCI employs a unique clocking option that allows the end user to select from divide by 4 divide by 2 and divide by 1 clocking modes These modes are selected at Headers J1C through J4C To select the Baud rates commonly associated with COM ports i e 2400 4800 9600 19 2 115 2K Bps place the jumper in the divide by 4 mode silk screen DIV4 DIV4 MN DIV1 DIV2 Figure 8 Clocking Mode Divide By 4 To double these rates up to a maximum rate for 230 4K bps place the jumper in the divide by 2 silk screen DIV2 position DIV2 il DIV1 DIV4 Figure 9 Clocking Mode Divide By 2 To select the maximum data rate 460 8K bps place the jumper in the divide by 1 silk screen DIV1 position DIV HN DIV2 DIV4 Figure 10 Clocking Mode Divide By 1 Sealevel Systems ULTRA COMM 2 PCI Page 6 Card Setup Bau
24. t distances less than 50 ft The absolute maximum data rate may vary due to line conditions and cable lengths RS 232 is a single ended or unbalanced interface meaning that a single electrical signal is compared to a common signal ground to determine binary logic states 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 ULTRA COMM 2 PCI is a DTE device RS 422 The RS 422 specification defines the electrical characteristics of balanced voltage digital interface circuits RS 422 is a differential interface that defines voltage levels and driver receiver electrical specifications On a differential interface logic levels are defined by the difference in voltage between a pair of outputs or inputs In contrast a single ended interface for example RS 232 defines the logic levels as the difference in voltage between a single signal and a common ground connection Differential interfaces are typically more immune to noise or voltage spikes that may occur on the communication lines Differential interfaces also have greater drive capabilities that allow for longer cable lengths RS 422 is rated up to 10 Megabits per second and can have cabling 4000 feet long RS 422 also defines driver and receiver electrical characteristics that will allow 1 driver and up to 32 receivers on the line at once RS 422 signal levels range from 0 to 5 volts RS 422
25. this to answer many common questions This section can be found at http www sealevel com faq asp 4 Sealevel Systems maintains a web page on the Internet Our home page address is http www sealevel com The latest software updates and newest manuals are available via our web site 5 Technical support is available Monday to Friday from 8 00 a m to 5 00 p m eastern time Technical support can be reached at 864 843 4343 Return Authorization Must Be Obtained From Sealevel Systems Before Returned Merchandise Will Be Accepted Authorization Can Be Obtained By Calling Sealevel Systems And Requesting A Return Merchandise Authorization RMA Number Sealevel Systems ULTRA COMM 2 PCI Page 15 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 or EIA TIA 232 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 is 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 a
26. use are not covered under this warranty Warranty service is obtained by delivering the Product to Sealevel and providing proof of purchase Return authorization must be obtained from Sealevel Systems before returned merchandise will be accepted Authorization is obtained by calling Sealevel Systems and requesting a Return Merchandise Authorization RMA number The Customer agrees to insure the Product or assume the risk of loss or damage in transit to prepay shipping charges to Sealevel and to use the original shipping container or equivalent Warranty is valid only for original purchaser and is not transferable Sealevel Systems 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 Sealevel Systems will not be liable for any claim made by any other related party This warranty applies to Sealevel manufactured Product Product purchased through Sealevel but manufactured by a third party will retain the original manufacturer s warranty Sealevel Systems Incorporated 2779 Greenville Highway P O Box 830 Liberty SC 29657 USA 864 843 4343 FAX 864 843 3067 www sealevel com email support sealevel com Technical Support is available from 8 a m to 5 p m Eastern time Monday Friday Trademarks Sealevel Systems Incorporated acknowledges that all trademarks referenced in this manual are the service ma
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