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SeaLINK+232 USER MANUAL

1. Specification Operating Temperature Range 0 to 50 C 20 to 70 C 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 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 5 VDC 100 mA Mean Time Between Failures MTBF Greater than 150 000 hours Calculated Physical Dimensions Package Length 2 14 inches 5 44 cm Package Width 1 4 inches 3 55 cm Package Height 63 inches 1 60 cm Sealevel Systems SeaLINK 232 Page 7 Appendix A Troubleshooting Appendix A Troubleshooting Serial Utility test software is supplied with the Sealevel Systems adapter and will be used in the troubleshooting procedures Using this software and following these simple steps most common problems can be eliminated without the need to call Technical Support 1 If your adapter isn t working first check to make sure that USB support is enabled in the System BIOS and it is functioning properly in the operating system This can be done by using either the Windows 98 ME or Windows 2000 Device Manager 2 Ensure that the Sealevel Systems software has been installed on the machine so that the necessary files are in place to complete the installation 3 Use Sealevel
2. 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 Sealevel Systems SeaLINK 232 Page 9 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 at 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 SeaLINK
3. s WinSSD utility and the supplied loopback plug to check communications The supplied loopback plug connects TD to RD If you decide to test the Modem Control Signals a full pin loopback plug will be required Details on loopback plugs are included within WinSSD Contact Sealevel Systems if you need further assistance 4 When testing the SeaLINK 232 in loopback mode you should see both the TX and RX LED s flashing as well as seeing echoed data on the screen The loopback test first transmits a HEX pattern 55AA and then an ASCII string of data If this test passes then the SeaLINK 232 is ready for use in your application Sealevel Systems SeaLINK 232 Page 8 Appendix B How To Get Assistance Appendix B How To Get Assistance Please refer to Appendix A Troubleshooting prior to calling Technical Support Read this manual thoroughly before attempting to install the adapter in your system When calling for technical assistance please have your user manual and current adapter settings If possible please have the adapter connected in a computer ready to run diagnostics Sealevel Systems 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 accessible from our home page Technical support is available Monday through Friday from 8 00 a m to 5 00 p m Eastern time Technical support can be reached at 864 843 4343
4. your computer prior to installation The SeaLINK 232 requires no user hardware configuration since there are no jumpers present on the card 1 Connect SeaLINK 232 to an Upstream Host or Hub New Hardware Found This indicates that the system has recognized the new device and will now proceed to locate a driver Sealevel Systems SeaLINK 232 Page 2 Installation Add New Hardware Wizard Since you have already installed the software by running Setup simply click Next to proceed The drivers that were installed during setup will automatically be used to configure the adapter Sealevel Systems SeaLINK 232 Page 3 Installation Add New Hardware Wizard Windows has now located a driver and installed the software Click Finish to proceed You should see one more New Hardware Found indicating the actual port being created If you view your systems Device Manager at this point you should have a new COM port in the Ports COM amp LPT Device Class It should look similar to the screen shot on the following page Sealevel Systems SeaLINK 232 Page 4 Installation System Properties m Computer CDROM a Disk drives H Display adapters H Floppy disk controllers H Hard disk controllers ee Keyboard H Monitors E Mouse H Multi function adapters o Network eal E SCSI controllers You can access your new COM port by using the assigned COM identif
5. 232 is a DTE device Sealevel Systems SeaLINK 232 Page 10 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 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 t 5 to 8 Data Bits eee Remain Idle or 1 i i bey sal 1 TE de hs de oe pe te Se I l l l I i I ler ESO p 0 meets 2 Poel E N E i l lee Li i li a 5 0 I la 2 al Figure 1 Asynchronous Communications Bit Diagram This s
6. Figure 1 Asynchronous Communications Bit Diagram cssssseeee 11 2001b Sealevel Systems Incorporated All rights reserved Introduction Introduction Overview The Sealevel Systems SeaLINK 232 equips the PC with 1 USB to RS 232 Asynchronous serial port providing a versatile interface for common RS 232 needs i e modem mouse and plotter The advantage of this product over more traditional approaches is that it doesn t require opening the computer case nor does it require resources such as I O ports or IRQ s It does require a system that supports USB both in terms of hardware and operating system What s Included The SeaLINK 232 is shipped with the following items If any of these items is missing or damaged contact the supplier e SeaLINK 232 USB to RS 232 Serial I O Adapter e Sealevel Software e User Manual Sealevel Systems SeaLINK 232 Page 1 Installation Installation Operating System Installation Choose Install Software at the beginning of the CD and select the Serial I O software drivers and install SeaCOM System Installation The screen captures below are taken from a Windows ME installation Your particular operating system may differ slightly from what is shown based on your version of Windows The SeaLINK 232 can be connected to any Upstream Type A port either at the PC host or an Upstream Hub The SeaLINK 232 is hot pluggable meaning there is no need to power down
7. SEALEVEL SYSTEMS INCORPORATED SeaLINK 232 USER MANUAL ie B23 ee S AER Fa 2 E A H X am in A 1A 7 A a L i T 4 i T ki O NN T gt Af N E i noS pE 9 Part 2105 Sealevel Systems Inc 155 Technology Place P O Box 830 FAX 864 843 3067 Liberty SC 29657 USA www sealevel com Phone 864 843 4343 Contents OVERVIEW ara a a ea on da ET E NE cee WHAT S INCLUDED OPERATING SYSTEM INSTALLATION cccssessesesseseesescesesseseeeseeensees 2 SYSTEM INSTALLATION nean E R E ES 2 FEATURES a er ATE ETAR E ORSA dees ERRA 6 CONNECTOR PIN ASSIGNMENTS DB9 MALE EP ANAO E eevee 6 DB 9 EIA 574 DTE DB9 MALE sssssssssssssssssssssetesesssssssssseesesees 6 ENVIRONMENTAL SPECIFICATIONS ccccesessesseseseseeceseeseseeseneeeeeeeneees MANUFACTURING sccsseseseeseseeeeeeeseeeees POWER CONSUMPTION MEAN TIME BETWEEN FAILURES MTBF PHYSICAL DIMENSIONS A e E R E s 7 APPENDIX A TROUBLESHOOTING esooeessssssosoosossssssssosoosesse D APPENDIX B HOW TO GET ASSISTANCE e eoeoe0e0e0000000000 D APPENDIX C ELECTRICAL INTERFACE ccsssscsssssscsssesssseseee 10 APPENDIX D ASYNCHRONOUS COMMUNICATIONS 0006 11 APPENDIX E COMPLIANCE NOTICES eseessessoesoossessossosssessoseoee 12 FEDERAL COMMUNICATIONS COMMISSION STATEMENT 12 EMC DIRECTIVE STATEMENT csescessssesesseseeseecesesceseeaeneescneeseeeenes 12
8. ce 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 EN55022 Class B Limits and methods of measurement of radio nterference characteristics of information technology equipment m EN55024 Information technology equipment Immunity characteristics Limits and methods of measurement EN60950 IEC950 Safety of information technology equipment including electrical business equipment 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 EMC directives Sealevel Systems SeaLINK 232 Page 12 Warranty Warranty Sealevel Systems Inc provides a lifetime warranty for this product Should this product fail to be in good working order at any time during this period Sealevel Systems will at it s option replace or repair it at no additional charge except as set forth in the following terms This warranty does no
9. ier shown above In this case it is COM4 but this assignment will vary from system to system At this point the hardware is recognized To verify operation use Sealevel Systems supplied WinSSD diagnostic utility WinSSD can be found in the Start Programs group Sealevel Systems SeaLINK 232 Page 5 Technical Description Technical Description The SeaLINK 232 utilizes a USB UART This chip features programmable baud rate data format 128 byte Dual Port TX Buffer and 384 byte Dual Port RX Buffer The RS 232 transceiver supports data rates up to 460 8K baud Refer to Appendix C for cable length limitations Features e Hot Pluggable device that doesn t require opening the case e No system resources are required i e I O ports or IRQ s e LED status indicators for TX and RX Connector Pin Assignments DB9 Male DB 9 EIA 574 DTE DB9 MALE GND Ground ST DTR Data Terminal Ready 4 Output RD Receive Data 2 npt CTS ClearToSend 8 npt DSR DataSetReady 6 npt RI Ring Indicator 9 input 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 Sealevel Systems SeaLINK 232 Page 6 Specifications Specifications Environmental Specifications
10. pecial 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 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 SeaLINK 232 Page 11 Appendix E Compliance Notices Appendix E 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 accordan
11. t apply to products damaged by misuse modifications accident or disaster 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 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 Incorporated 155 Technology Place 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 mark trademark or registered trademark of the respective company SeaLINK 232 is a trademark of Sealevel Systems Incorporated Sealevel Systems SeaLINK 232 Page 13

SeaLINK+232 USER MANUAL

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