Related Manuals for SeaLevel DuoCom
Summary of Contents for SeaLevel DuoCom
- Page 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...
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Page 2: Table Of Contents
Contents ................ 1 NTRODUCTION ..................1 VERVIEW ’ .................1 NCLUDED ............1 ACTORY EFAULT ETTINGS ................2 ETUP ..............2 DDRESS ELECTION IRQ S ................3 ELECTION .................4 NTERRUPT ODES ................. 6 NSTALLATION ..........6 PERATING YSTEM NSTALLATION For Windows Users..............6 Other Operating Systems ............6 ..............6 YSTEM NSTALLATION... - Page 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 Systems, Inc. SL9141 Revision 7/2006 Sealevel Systems, Incorporated. All rights reserved.
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Page 4: Introduction
RS-232 needs (i.e. modem, mouse and plotters). What’s Included The DUOCOM: is shipped with the following items. If any of these items are missing or damaged, contact the supplier. • DUOCOM: Serial I/O Adapter •... -
Page 5: Card Setup
PC as a standard serial port. A DIP switch (SW1) is used to set the port address options for the DUOCOM:. Be careful when selecting the port addresses as some selections may conflict with existing ports. The following table shows the addressing options available with the standard PAL. -
Page 6: Irq Selection
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 E3. Consult your particular software for IRQ selection. If no interrupt is desired, remove the jumper. Sealevel Systems DUOCOM: Page 3... -
Page 7: Interrupt Modes
Also set one block for ‘R’. This provides the pull-down resistor circuit that makes sharing of IRQs possible. If you are using more than one DUOCOM: or a compatible adapter in a bus you should only have one port set to ‘R’. The following example shows both ports sharing a single IRQ. -
Page 8: Figure 5 - Header E3, Sharing Irq's With Another Adapter
Card Setup Set the jumper to ‘S’ if you are using more than one DUOCOM: in 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 ports from triggering an interrupt. -
Page 9: Installation
Refer to the appropriate section of the Serial Utilities Software. System Installation The DUOCOM: can be installed in any of the 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. -
Page 10: Technical Description
Technical Description Technical Description The DUOCOM: utilizes the 16550 UART. This chip features programmable baud rate, data format, interrupt control and a 16 byte input and output FIFO. Also available as an option is the 16C650 UART that provides a deeper FIFO (32 bytes) and enhanced clocking features. -
Page 11: Specifications
Non-Condensing Non-Condensing Manufacturing • All Sealevel Systems 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 Supply line... -
Page 12: Roubleshooting
No two adapters can occupy the same I/O address. 3. Make sure the Sealevel Systems adapter is using a unique IRQ 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. - Page 13 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: Sealevel Systems DUOCOM: Page 10...
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Page 14: Appendixb - How T Og
If possible, please have the adapter installed in a computer ready to run diagnostics. Sealevel Systems provides an FAQ section 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... -
Page 15: Appendixc - Electrical
(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 DUOCOM: is a DTE device. Sealevel Systems DUOCOM:... -
Page 16: Appendixd - Asynchronous
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 character, stop bits (i.e. 9600,N,8,1). Sealevel Systems DUOCOM: Page 13... -
Page 17: Appendixe - Silk -Screen
Appendix E - Silk-Screen Appendix E - Silk-Screen 3.9" 5.0" 4.2" Sealevel Systems DUOCOM: Page 14... -
Page 18: Appendixf - Compliance
Consult the dealer or an experienced radio/TV technician for help Caution Sealevel Systems, Inc. is not responsible for any radio or television interference caused by unauthorized modifications of this equipment or the substitution of attachment of connecting cables and equipment other than those specified by Sealevel Systems. -
Page 19: Emc Directive
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 DUOCOM: Page 16... -
Page 20: W Arranty
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.