Introduction and Card Setup Introduction Overview The Sealevel COMM+850.PCI is a single channel PCI Bus serial I/O adapter. It provides one RS-232 serial port supporting data rates up to 460.8K bps. What’s Included The COMM+850.PCI is shipped with the following items. If any of these items is missing or damaged, contact the supplier.
If your communications package allows the use of Baud rate divisors, choose the appropriate divisor from the following table: 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 COMM+850.PCI Page 2...
3. Locate an available PCI slot and remove the blank metal slot cover. 4. Gently insert the COMM+850.PCI 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 COMM+850.PCI Page 3...
Technical Description Technical Description The Sealevel Systems COMM+850.PCI provides a versatile interface for any RS-232 device including modems, printers and plotters. The COMM+850.PCI utilizes the 16850 UART. This chip features programmable baud rates, data format, interrupt control and industry leading 128-byte FIFOs.
10 to 90% R.H. 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...
No two adapters can occupy the same I/O address. 3. Make sure the Sealevel Systems adapter is using a unique IRQ. While the Sealevel Systems adapter does allow the sharing of IRQs, many other adapters (i.e. SCSI adapters & on-board serial ports) do not. The IRQ is typically selected via an on-board header block.
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.
(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 COMM+850.PCI is a DTE device. Sealevel Systems COMM+850.PCI Page 8...
The communication parameters are baud rate, parity, number of data bits per character, and stop bits (i.e. 9600,N,8,1). Sealevel Systems COMM+850.PCI Page 9...
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.
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 COMM+850.PCI Page 12...
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.