DUOCOM™
User Manual
Part #3088
Sealevel Systems, Inc.
Telephone: (864) 843-4343
PO Box 830
Fax: (864) 843-3067
Liberty, SC 29657 USA
www.sealevel.com
Страница 1: ...DUOCOM User Manual Part 3088 Sealevel Systems Inc Telephone 864 843 4343 PO Box 830 Fax 864 843 3067 Liberty SC 29657 USA www sealevel com...
Страница 2: ...ECTOR PIN ASSIGNMENTS DB9 MALE 7 SPECIFICATIONS 8 ENVIRONMENTAL SPECIFICATIONS 8 MANUFACTURING 8 POWER CONSUMPTION 8 MEAN TIME BETWEEN FAILURES MTBF 8 PHYSICAL DIMENSIONS 8 APPENDIX A TROUBLESHOOTING...
Страница 3: ...tion 3 Figure 3 Header E3 Normal IRQ Mode 4 Figure 4 Header E3 Shared IRQ Mode 4 Figure 5 Header E3 Sharing IRQ s with another adapter 5 Figure 6 Asynchronous Communications Bit Diagram 13 Sealevel Sy...
Страница 4: ...OM is shipped with the following items If any of these items are missing or damaged contact the supplier DUOCOM Serial I O Adapter Sealevel Software Factory Default Settings The DUOCOM factory default...
Страница 5: ...contact Sealevel Systems Technical Support about a custom PAL option Port1 J2 Port2 J3 SW1 1 SW1 2 SW1 3 SW1 4 3F8 2F8 On On On Off 3E8 2E8 On On Off On 2F8 2E8 On On Off Off 2F8 3E8 On Off On On 322...
Страница 6: ...equires the sharing of interrupts between COM1 and COM3 and between COM2 and COM4 While this is the default it is not always the preferred setting Check your software configuration instructions to det...
Страница 7: ...ions at E1 Consult your particular software for IRQ selection If no interrupt is desired remove the jumper R indicates the inclusion of a 1K ohm pull down resistor required on one port when sharing in...
Страница 8: ...a bus or you wish to completely remove the pull down resistor for hardware compatibility Setting the adapter in this configuration when it is not accompanied by a pull down resistor will prevent the...
Страница 9: ...he PC expansion slots but to access the AT or E ISA IRQs 10 15 it must be installed in one of the 16 bit slots The DUOCOM contains several jumper straps for each port which must be set for proper oper...
Страница 10: ...IRQ IRQs 2 5 7 10 11 12 15 supported Connector Pin Assignments DB9 Male Name Pin Mode TD Transmit Data 3 Output RTS Request To Send 7 Output DTR Data Term Ready 4 Output GND Ground 5 RD Receive Data...
Страница 11: ...ms 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 Su...
Страница 12: ...tion on Card Setup for help in choosing an I O address and IRQ 4 Make sure the Sealevel Systems adapter is securely installed in a motherboard slot 5 When running DOS Windows 3 x or other operating sy...
Страница 13: ...conflicts The 278 and 378 settings may conflict 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 reserv...
Страница 14: ...on on its web site Please refer to this to answer many common questions This section can be found at http www sealevel com faq htm 4 Sealevel Systems maintains a Home page on the Internet Our home pag...
Страница 15: ...ween 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 docum...
Страница 16: ...ion 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 Remain Idle or next start bit Odd Even or Unused STOP P BIT 5 t...
Страница 17: ...Appendix E Silk Screen Sealevel Systems DUOCOM Page 14 Appendix E Silk Screen 5 0 3 9 4 2...
Страница 18: ...e the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio...
Страница 19: ...EN55022 Class B Limits and methods of measurement of radio interference characteristics of information technology equipment EN55024 Information technology equipment Immunity characteristics Limits and...
Страница 20: ...his 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 A...
