Related Manuals for SeaLevel ISO COMM2.cPCI
Summary of Contents for SeaLevel ISO COMM2.cPCI
- Page 1 ISO COMM2.cPCI™ User Manual | 7903 © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021...
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Page 2: Table Of Contents
APPENDIX D – GROUND LOOP PHENOMENON ....................16 APPENDIX E – ASYNCHRONOUS COMMUNICATIONS .................. 17 APPENDIX F – SILK SCREEN ..........................18 APPENDIX G – COMPLIANCE NOTICES ......................19 WARRANTY ................................ 20 © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... - Page 3 Introduction The Sealevel Systems ISO COMM+2.cPCI is a two channel isolated cPCI Bus serial I/O adapter. Utilizing the Exar 16C850 UART with its industry leading 128 byte FIFOs, it provides two field selectable RS232/422/485 serial ports supporting data rates up to 460.8K bps (RS-422/485).
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Page 4: Before You Get Started
Before You Get Started What’s Included The ISO COMM+2.cPCI is shipped with the following items. If any of these items are missing or damaged, please contact Sealevel for replacement. ISO COMM+2.cPCI Serial I/O Adapter • 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. -
Page 5: Card Setup
Figure 4 - RS-485 2-Wire with Echo 2-Wire RS-485 1 2 3 4 5 6 7 8 9 10 NO Echo 1 2 3 T P P L L E Figure 5 - RS-485, 2-wire without Echo © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... - Page 6 Position 9 of SW1 and SW2 is used to control the RS-485 enable/disable functions for the receiver circuit. To select the ‘No Echo’ mode place switch position 9 to the ‘On’ position (see Figure 5). © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021...
- Page 7 1 to the ‘On’ position (silk-screen D1). Divide by 4 mode 1 2 3 4 Divide by 1 mode 1 2 3 4 Figure 7 - Clocking Modes © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021...
- Page 8 For this Data Rate Choose this Divisor 1200 bps 2400 bps 4800 bps 9600 bps 19.2K bps 38.4K bps 57.6K bps 115.2K bps 230.4K bps 460.8K bps © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021...
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Page 9: Installation
4. Gently insert the ISO COMM+2.cPCI into the slot. Make sure that the adapter is seated properly. 5. Replace the screw. 6. Replace the cover. 7. Connect the power cord. Installation is complete. © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... -
Page 10: Technical Description
Technical Description The Sealevel Systems ISO COMM+2.cPCI provides a cPCI interface adapter with 2 isolated asynchronous serial ports providing a versatile interface, field selectable as RS-232 for modems, printers and plotters, as well as RS-422/485 for industrial automation and control applications. Isolation is important in installations where the equipment being connected to the PC is either far from the PC, or on a different power transformer circuit. -
Page 11: Specifications
10 to 90% R.H. Non-Condensing Manufacturing 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... -
Page 12: Appendix A - Troubleshooting
Appendix A – Troubleshooting Sealevel Software is supplied with the Sealevel Systems adapter and will be used in the troubleshooting procedures. By using this diskette and following these simple steps, most common problems can be eliminated without the need to call Technical Support. -
Page 13: Appendix B - How To Get Assistance
If possible, please have the adapter installed in a computer ready to run diagnostics. 3. 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.asp. -
Page 14: Appendix C - Electrical Interface
1 driver and up to 32 receivers on the line at once. RS-422 signal levels range from 0 to +5 volts. RS-422 does not define a physical connector. © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... - Page 15 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. 7903 Manual | SL9072 7/2021...
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Page 16: Appendix D - Ground Loop Phenomenon
This condition will cause data errors and possibly destruction of the receiver circuit. DATA+ DATA- Isolated Isolated Adapter Ground Adapter Isolation Barrier Figure 8 – ISO COMM+2.cPCI cabling example © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... -
Page 17: Appendix E - Asynchronous Communications
The communication parameters are baud rate, parity, number of data bits per character, and stop bits (i.e. 9600,N,8,1). © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... -
Page 18: Appendix F - Silk Screen
Appendix F – Silk Screen © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... -
Page 19: Appendix G - Compliance Notices
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 FCC/EMC directives. © Sealevel Systems, Inc. 7903 Manual | SL9072 7/2021... -
Page 20: 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/O products. 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.