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Summary of Contents for SeaLevel C4-104 Series
- Page 1 C4-104 USER MANUAL Part # 3520, 3521, 3522 Sealevel Systems, Inc Phone: (864) 843-4343 155 Technology Place FAX: (864) 843-3067 P.O. Box 830 www.sealevel.com Liberty, SC 29657 USA...
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Page 2: Table Of Contents
Contents ................ 1 NTRODUCTION ...................1 VERVIEW ’ ................1 NCLUDED ..............1 ACTORY EFAULT ETTINGS ............1 PERATING YSTEM NSTALLATION ................2 ETUP ................2 DDRESS ELECTION IRQ S ...................3 ELECTION RS-485 M (RTS E ) ............4 NABLE .................5 NTERFACE ELECTION RS-232....................5 RS-422/485..................5 RS-232 & RS-422/485 ..........5 OMBINED ................ - Page 3 Figure 3 - Headers E1, E2, E3, & E4 - IRQ Selection........3 Figure 4 - Headers E7 and E8 - RS-485 Enable and Echo Selection..... 4 Figure 5 - RS-232 Connector Pin Assignments..........7 Figure 6 - RS-422/485 Connector Assignments ..........8 © 1999i Sealevel Systems, Incorporated. All rights reserved.
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Page 4: Introduction
Introduction Introduction Overview The Sealevel Systems C4-104 series provides four selectable RS-232 or RS- 422/485 serial I/O ports for your PC/104 application. What’s Included The C4-104 is shipped with the following items. If any of these items is missing or damaged, contact the supplier. -
Page 5: Card Setup
The following table shows the addressing options available with the standard PAL. If you do not see an address option that suits your needs, please contact Sealevel Systems Technical Support about a custom PAL option. -
Page 6: Irq Selection
Position “R” installed is the default setting and should be left on unless multiple ports or cards are sharing a single IRQ. If multiple ports or cards are sharing a single IRQ then only one pull-down resistor is needed in the circuit. Sealevel Systems C4-104 Page 3... -
Page 7: Rs-485 Mode (Rts Enable)
E8-1 Port 3 RS-485 Enable E8-2 Port 3 RS-485 Echo Disable E8-3 Port 4 RS-485 Enable E8-4 Port 4 RS-485 Echo Disable Figure 4 - Headers E7 and E8 - RS-485 Enable and Echo Selection Sealevel Systems C4-104 Page 4... -
Page 8: Interface Selection
Ports 3 & 4 RS-422 U2 & U5 Removed E5 jumpers Installed Ports 1 & 2 RS-422 U2 & U6 Installed E6 jumpers Installed Ports 3 & 4 RS-232 U1 & U5 Removed E5 jumpers Removed Sealevel Systems C4-104 Page 5... -
Page 9: Installation
5. The cables provided are keyed and can be installed before or after the adapter is inserted in the stack. 6. Replace the cover. 7. Connect the power cord. Installation is complete. Sealevel Systems C4-104 Page 6... -
Page 10: Technical Description
RS-232. If any other connections are made your data may become corrupted. If RTS and CTS are not being used terminate them by connecting the pins together. This will help insure the best performance. Sealevel Systems C4-104 Page 7... -
Page 11: Status Port
Figure 6 - RS-422/485 Connector Assignments Status Port The Sealevel C4-104 also provides the user with an interrupt status port for greater throughput when servicing multiple ports on a single interrupt line. The interrupt status port is a read only 8-bit port that sets a corresponding bit when an interrupt is pending. -
Page 12: 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 13: Appendixa - Troubleshooting
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 14: Appendixb - How T O Get Assistance
If possible, please have the adapter installed in a computer ready to run diagnostics. 3. 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 that can be accessed from our home page. -
Page 15: Appendixc - Electrical Interface
+3 to +10 volts) represents a binary 0 (space) and -12 volts (-3 to -10 volts) denotes a binary 1 (mark). The RS-232 and the EIA/TIA-574 specification defines two type of interface circuits, Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE). The Sealevel Systems adapter is a DTE interface. RS-422 The RS-422 specification defines the electrical characteristics of balanced voltage digital interface circuits. - Page 16 (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 C4-104 Page 13...
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Page 17: Appendixd - Pc/104
Minimizing component count and power consumption (typically 1-2 Watts per module) by reducing required bus drive on most signals to 4 mA. Sealevel Systems has been a member of the PC/104 Consortium since its inception. Questions about the PC/104 Consortium can be sent to: PC/104 Consortium 849 Independence Ave., Suite B... -
Page 18: Appendixe - Silk -Screen
Appendix E - Silk-Screen Appendix E - Silk-Screen 3.550" 3.775" Sealevel Systems C4-104 Page 15... -
Page 19: Appendixf - Schematic
Appendix F - Schematic Appendix F - Schematic Sealevel Systems C4-104 Page 16... - Page 20 Appendix F - Schematic Sealevel Systems C4-104 Page 17...
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Page 21: 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.
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