7404e User Manual
Contents
1. 0 Sealevel Systems Inc 7404e Manual SL9224 04 2013 Electrical Interface Selection Each of the four ports on the ULTRA COMM 4 PCle can be individually configured as an RS 232 RS 422 or RS 485 interface This is selectable via the port DIP switch each is labeled with its port number Switch 1 Silk M1 Switch 2 Silk MO Mode Select OFF OFF 232 422 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 toa 1K ohm pull up pull down combination that biases the receiver inputs Each switch allows customization of this interface to specific requirements Each switch position corresponds toa specific portion of the interface If multiple Ultra COMM 4 PCle adapters are configured in an RS 485 network only the boards on each end should have switches T P amp P ON Refer to the following table for each position s operation Switch Name Function Adds or removes the 120 ohm termination Adds or removes the 1K ohm pull up resistor in the RS 422 RS 485 receiver circuit f PD Adds or removes the 1K ohm pull down resistor in the RS 422 RS 485 receiver circuit 6 foa Connects the TX to RX for RS 485 two wire operation Connects the TX to RX for RS 485 two wire operation RS 485 Echo The RS 485 Echo is the result of connecting the receiver inputs to2. SEALE VEL UltraCOMM 4 PCle User Manual SEAL VEL ltem 404e Sealevel Systems Inc Sealevel com Phone 864 843 4343 Contents BINT THR ODUC CTION A 3 BEFORE YOU GET STARTED 4 CARD SETUP n A 6 SOFTWARE INSTALLA 9 SPECIFICATIONS 17 APPENDIX TROUB UES OO 18 APPENDIX HANDLING INSTRUCTIONS sssecsscscsssnitnssvssnssesseccnssnesisssssnnseussavedssnssssisesinssdsccsssstnsnsnisusaussdstesssnsndsisssontes 19 APPENDIX C ELECTRICAL INTERFACE 20 APPENDIX D ASYNCHRONOUS 1 22 APPENDIX MECHANICAL DRAWING 23 UR RIN Vcc eile ie aaa none 24 Sealevel Systems Inc 7404e Manual SL9224 04 2013 Introduction The Sealevel Ultra COMM 4 PCle is an
3. O products Relio industrial computers are warranted for a period of two years and the R9 family is warranted for a five year period from date of purchase We are able to offer 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 achieved 5 9001 2008 certification in 2011 Warranty Policy 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 the warranty period In the event of failure Sealevel will repair or replace the product at Sealevel s sole discretion Failures resulting from misapplication misuse of the Product failure to adhere to any specifications or instructions or failure resulting from neglect abuse accidents or acts of nature are not covered under this warranty Warranty service may be obtained by delivering the Product to Sealevel and providing proof of purchase 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 transfera
4. four channel RS 232 485 422 PCI express Bus serial I O adapter supporting data rates up to 921 6Kbps The RS 232 compatibility allows for connection to devices utilizing the RS 232 electrical interface such as modems data entry terminals and plotters RS 422 provides excellent communications for long distance device connections up to 4000ft where noise immunity and high data integrity are essential RS 485 is optimized for Multi Drop or Party line operations selecting data from multiple peripherals as many as 31 devices can be connected on an RS 485 bus 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 software application to utilize the serial port for RS 485 communication without the need to control the direction of data between the master and slave device Our on board hardware automatically handles the RS 485 driver enable The Ultra COMM 4 PCle will operate on x1 x4 x8 or x16 PCle Bus slots Features Each port individually configurable for RS 232 RS 422 RS 485 16C954 buffered UARTs with 128 byte FIFOs e Oscillator and clock prescalar support wide range of baud rates e Supports 9 bit protocol framing e Each port supports data rates to 921 6K bps RS 485 line termination pull up and pull down resistors for each port are selectable via dipswitch RS 485 ECHO be enabled disabled via dipswitch
5. only available in RS 232 and RS 422 modes The RTS output is tri stated in RS 485 mode and therefore unusable The CTS input is available in all modes Sealevel Systems Inc 7404e Manual SL9224 04 2013 Specifications Environmental Specifications Specification Operating Storage 0 to 70 C 50 to 105 C Temperature Range 32 to 158 F 58 to 221 F 10 to 90 R H 10 to 90 R H Non Condensing Non Condensing Manufacturing All Sealevel Systems Printed Circuit boards are built to UL 94 0 rating and are 100 electrically tested These printed circuit boards are solder mask over bare copper Power Consumption Supply line 3 3VDC 12VDC Rating 100 mA Physical Dimensions Board length 4 875 inches 12 38 cm Board Height including Goldfingers 3 677 inches 9 34 cm Board Height excluding Goldfingers 3 175 inches 8 06 cm Sealevel Systems Inc 7404e Manual 17 SL9224 04 2013 Appendix Troubleshooting 1 Identify all 1 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 2 Configure your Sealevel Systems adapter so that there is no conflict with currently installed adapters No two adapters can occupy the same 1 0 address 3 Make sure the Sealevel Systems adapter is using a unique IRQ While the Sealevel Sy
6. 343 9 to 0825 Serial Cable Item 1 76 DB9 Female RS 422 to DB25 Male RS 530 Cable 10 in Length Terminal Block Kit KT106 Terminal Block Kit 06 2 127 Cables Terminal Block Kit Item KT105 Terminal Block Kit 5 127 Cable Terminal Block Kit Item TB34 4 Terminal Block Kit 4 Pack DB9 Female to 5 Screw Terminals RS 422 485 Sealevel Systems Inc 7404e Manual SL9224 04 2013 Card Setup Address and IRQ selection The Ultra COMM 4 PCle is automatically assigned I O addresses and IRQs by your motherboard BIOS or by a Plug n Play Operating System Adding or removing other hardware or moving the adapter to another slot may change the assignment of I O addresses and IRQs Clock Modes The Ultra COMM 4 PCle derives 62 5MHz clock from the PCI express link which is divided by a 8 bit clock prescaler and a 16 bit clock divisor to provide a wide range of possible baud rates Note that there are many combinations that can give the same result e g Prescaler 1 and Divisor 8 Prescaler 2 and Divisor 4 or Prescaler 8 and Divisor 1 As long as the calculated data rate is within 2 you should communicate fine Baud Rates The following table shows some common data rates and the rates you should choose to achieve them when using the ULTRA COMM 4 PCle For This Data Rate Clock Prescaler Choose This Divisor DLM DLL
7. ardly compatible with RS 422 however it is optimized for party line 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 ina 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 Sealevel Systems Inc 7404e Manual 20 519224 04 2013 for full duplex communication and requires that data be transferred in only one direction ata 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 Inc 7404e Manual SL9224 04 2013 2 Appendix D Asynchronous Communicatio
8. ble This warranty applies to Sealevel manufactured Product Product purchased through Sealevel but manufactured by a third party will retain the original manufacturer s warranty Non Warranty Repair Retest Products returned due to damage or misuse and Products retested with no problem found are subject to repair retest charges A purchase order or credit card number and authorization must be provided in order to obtain an RMA Return Merchandise Authorization number prior to returning Product How to obtain an RMA Return Merchandise Authorization If you need to return a product for warranty non warranty repair you must first obtain RMA number Please contact Sealevel Systems Inc Technical Support for assistance Available Monday Friday 8 00AM to 5 00PM EST Phone 864 843 4343 Email support sealevel com Trademarks Sealevel Systems Incorporated acknowledges that all trademarks referenced in this manual are the service mark trademark or registered trademark of the respective company Sealevel Systems Inc 7404e Manual 24 SL9224 04 2013
9. e PCI Express x1 compliant e Compatible with all standard size Express slots e All modem control signals implemented in RS 232 mode e Automatic RS 485 enable disable in hardware Included 36 cable terminates to four 9 connectors Item 43 Sealevel Systems Inc 7404e Manual SL9224 04 2013 Before You Get Started What s Included The Ultra COMM 4 PCle is shipped with the following items If any of these items are missing or damaged please contact Sealevel for replacement e Ultra COMM 4 PCle Serial I O Adapter 143 DB37 Female to 4 9 Male 36 in length cable Sealevel Software CD Advisory Conventions Warning The highest level of importance used to stress a condition where damage could result to the product or the user could suffer serious injury Note The lowest level of importance used to provide background information additional tips other non critical facts that will affect the use of the product Important The middle level of importance used to highlight information that might not seem obvious or a situation that could cause the product to fail Sealevel Systems Inc 7404e Manual SL9224 04 2013 Optional Items Depending upon your application you are likely to find one or more of the following items useful with the Ultra COMM 4 PCle All items can be purchased from our website www sealevel com by calling our sales team at 864 843 4
10. e adapter and associate it with the newly installed SeaCOM driver Linux Support The 7404e is supported natively in Linux kernels 2 6 28 and later Sealevel Systems Inc 7404e Manual SL9224 04 2013 Technical Description The Ultra COMM 4 PCle provides four RS 232 422 485 ports from a single PCle slot The Ultra COMM 4 PCle utilizes the 16C950 type UART This chip features programmable baud rates data format interrupt control and industry leading 128 byte transmit and receive FIFOs The UARTs are register compatible with 16C450 16 550 16 654 16C750 UARTs The FIFO depth can be changed to match the depth of these UARTs RS 422 485 145 DB 9 Connector Pin Assignments Signal Name Pin Mode Negative Sealevel Systems Inc 7404e Manual SL9224 04 2013 5 252 145 DB 9 Connector Pin Assignments Signal Pin Mode Data Carrier Detect Input 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 ensure you get the best performance from your adapter icone Sealevel Systems Inc 7404e Manual SL9224 04 2013 23234221405 DB 357 Port 2 3 RS 422 485 RS 232 2 we spn lee ef w eco fw fw GND 5 The RTS output is
11. ealevel Systems media Software directory For example Software SeaCOM Windows SeaCOM Installer exe 2 If you are using Windows Vista or newer operating systems right click the installer executable and choose Run as Administrator If you are using an operating system prior to Windows Vista double click on the executable to launch the InstallShield and initiate the driver installation 3 Please refer to step six above in the Guided Software Installation section and follow the remaining installation steps Upgrading to the Current SeaCOM Driver 1 Download the current driver using the Instructions from the Where to Get Software section above Please take note of the destination directory it will save to N Uninstall the currently loaded driver SeaCOM driver found in the Control Panel Prior to Windows Vista SeaCOM will be populated in Add Remove Programs list In Vista and newer OSs it will be found in the Programs and Features list 3 Navigate to the Device Manager and remove the Sealevel adapter by right clicking on the line item choosing Uninstall Depending on your product it can be found under either Multiport Serial adapters or Universal Serial Bus controllers 4 Single port ISA cards and PCMCIA cards will need to be uninstalled under Ports COM amp LPT 5 In the Device Manager under Action choose Scan for Hardware changes This will prompt the installation of th
12. eive a warning indicating drivers being installed may not be certified by Microsoft s certification labs IF you receive this message you should click to allow installation All applications and drivers have been Fully tested to maintain the integrity of your operating system All Sealevel Systems software drivers have been fully tested by Sealevel Clicking OK will not harm your system 11 The following dialog box may appear as shown below Click the OK button to continue InstallShield Wizard IF has previously been installed on this computer vou should go to the Device Manager and uninstall cards You should also reboot vour computer before installing any card s This is a notification that if you are upgrading from a previous driver version you should remove the associated Device Manager hardware entries and reinstall the adapter after the installing the SeaCOM software 12 The setup file will automatically detect the operating environment and install the proper components Next follow the information presented on the screens that follow Once the installation is complete close the disk installation window 13 Refer to the Physical Installation section to connect and install your adapter Sealevel Systems Inc 7404e Manual 12 SL9224 04 2013 Manual Software Installation 1 To install a software package from the Sealevel media browse the S
13. ethods 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 8 1 Sealevel Systems Inc 7404e Manual 22 SL9224 04 2013 Appendix Mechanical Drawing gt 9 N Cl J Coc os 11 Sealevel Systems Inc SL9224 04 2013 2 22 i i SS 779 8 a E e aa 25 57 mm e 7 i H M 7404e Manual 23 Warranty Sealevel s commitment to providing the best I O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured I
14. ic assembly aids and Styrofoam Use field service tools such as cutters screwdrivers and vacuum cleaners that are conductive Sealevel Systems Inc 7404e Manual 19 SL9224 04 2013 Appendix C Electrical Interface 222 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 20K bps 50 ft The absolute maximum data rate may vary due to line conditions and cable lengths RS 232 often operates at 38 4K bps 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 electrical signal is compared to a co
15. mmon signal ground to determine binary logic states A voltage of 12 volts usually 3 to 10 volts represents a binary space and 12 volts 3 to 10 volts denote a binary 1 mark The RS 232 and the EIA TIA 5 74 specification define two types of interface circuits Data Terminal Equipment DTE and Data Circuit Terminating Equipment DCE The Sealevel Systems Adapter is a DTE interface 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 to 5 volts RS 422 does not define a physical connector RS 485 RS 485 is backw
16. ns 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 starting 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 ime 5to8 Data Bits 1 ynusea orca ___ ly 1 4 C TOT r o TO T TTI SMP 0 a et Ne ae I I Jove 1 1591 15 4 2 Figure 5 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 m
17. nux operating systems is available at these links o Software for Windows o Software for Linux e Choose the link for the desired software package and click on the Download File link to download the current driver e Proceed to the Manual Software Installation guide for your operating system Windows Installation Do not connect the hardware until the software has been successfully installed To install Sealevel software you must log in as an administrator or have administrator privileges in Windows Sealevel Systems Inc 7404e Manual SL9224 04 2013 Guided Software Installation 1 Insert the Sealevel media into your PC 2 If the AutoRun feature is enabled for this media the software will automatically launch 3 Otherwise navigate to the root directory of the media and double click the autorun exe application to launch the installation window 4 Select Install as demonstrated in the image below Support Literature Browse CD Ready Set Launch seulevel com suppor seglevel cormn Sealevel Systems Inc 7404e Manual 10 SL9224 04 2013 5 Type the part number for your adapter in the text box and press the Enter key or click on the drop box to scroll from the listing to select your product SEA Install Support Literature Browse CD Install PRODUCT FINDER Type part number e g 2105 in the box above or click the drop box to scroll Then press the Ente
18. r key to locate the appropriate manual and driver If you installed your hardware prior to loading installing the software please click on A the Click here if you installed hardware before software link and follow the listed instructions 6 Click the Install Drivers button to launch the Installation Wizard 7 When the InstallShield Wizard window appears click the Next button to initiate the software installation 8 When the License Agreement window appears accept the terms and click Next to continue You can click the Print button to print out a copy of the agreement for your records If you do not accept the terms of the agreement the installation will stop 9 When the Ready to Install the Program window appears click the Install button to install the software onto the hard drive of your computer The files will be automatically installed into the C Program Files folder on your computer Some versions of Windows will halt the installation and provide you with a dialog box which will ask you for permission for the installer to make changes to your Sealevel Systems Inc 7404e Manual 11 519224 04 2013 computer Click on the Allow button to continue installation of your Sealevel software 10 The following dialog box may appear as shown below Click the OK button to continue InstallShield Wizard During installation vou may rec
19. rts are functional 7 Always use the Sealevel Systems diagnostic software when troubleshooting a problem This will eliminate any software issues from the equation Sealevel Systems Inc 7404e Manual 18 SL9224 04 2013 Appendix Handling Instructions ESD Warnings Electrostatic Discharges ESD A sudden electrostatic discharge can destroy sensitive components Proper packaging and grounding rules must therefore be observed Always take the following precautions Transport boards and cards in electrostatically secure containers or bags Keep electrostatically sensitive components in their containers until they arrive at an electrostatically protected workplace Only touch electrostatically sensitive components when you are properly grounded Store electrostatically sensitive components in protective packaging or on anti static mats Grounding Methods The following measures help to avoid electrostatic damages to the device Cover workstations with approved antistatic material Always wear a wrist strap connected to a properly grounded workplace Use antistatic mats heel straps and or air ionizers for more protection Always handle electrostatically sensitive components by their edge or by their casing Avoid contact with pins leads or circuitry Turn off power and input signals before inserting and removing connectors or connecting test equipment Keep work area free of non conductive materials such as ordinary plast
20. stems 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 PCle Slots This will typically cause the BIOS or OS to reassign the resources 4 Make sure the Sealevel Systems adapter is securely installed in a motherboard slot 5 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 if 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 FindPCl exe 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 6 For Windows95 98 ME NT 2000 XP Vista 7 the diagnostic tool WinSSD 15 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 po
21. 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 An RS 485 No Echo option is selected by placing both Mode switches MO M1 in the On position Sealevel Systems Inc 7404e Manual SL9224 04 2013 ON 1234567 Figure 1 RS 232 Mode ON 123456 7 Figure 2 5 422 Mode ON fe es 123456 7 Figure RS 485 two wire with Echo Figure 4 RS 485 two wire No Sealevel Systems Inc 7404e Manual SL9224 04 2013 Software Installation This section contains helpful information pertaining to the installation of supported Sealevel Systems Inc software packages First the process of acquiring the software is discussed Next the installation is detailed in a step by step guide for Windows and Linux operating systems Where to Get Sealevel Software All Sealevel products are shipped with media containing the installers for each software package available If the media is otherwise unavailable or if desired the current versions of Sealevel software packages can be obtained from the Sealevel website see following instructions If you already have the Sealevel software proceed to the Windows or Linux installation section e Sealevel software for Windows Li
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