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Overview
The Sealevel Systems ULTRA COMM+I.PCI is a single channel isolated PCI
Bus serial I/O adapter for the PC and compatibles. Utilizing the Exar 16C850
UART with its industry leading 128 byte FIFOs, it provides a field selectable
RS-232/422/485 serial port supporting data rates up to 460.8K bps
(RS-422/485).
Configure as RS-232 for standard serial COM: port requirements. Choose the
RS-422 mode for long distance device connections up to 5000ft. where noise
immunity and high data integrity are essential. Select RS-485 and capture data
from multiple peripherals in a RS-485 multidrop network. Up to 31 RS-485
devices can be connected to each port to automate your data collection. You can
even mix the ports in any of the interface combinations to provide maximum
flexibility to your application. Optional Terminal Block adapters are available
to simplify field-wiring connections.
In both RS-232 and RS-422 modes, the card works seamlessly with the standard
operating system serial driver. In RS-485 mode, our special auto-enable feature
allows the RS-485 ports to be viewed by the operating system as a COM: port.
This allows the standard COM: driver to be utilized for RS-485 communications.
Our on-board hardware automatically handles the RS-485 driver enable.
What's Included
The ULTRA COMM+I.PCI is shipped with the following items. If any of these
items is missing or damaged, contact the supplier.
•
ULTRA COMM+I.PCI Serial I/O Adapter
•
Sealevel Software
Factory Default Settings
The ULTRA COMM+I.PCI factory default settings are as follows:
Port #
Port 1
To install the ULTRA COMM+I.PCI using factory default settings, refer to
Installation on page 7.
Sealevel Systems ULTRA COMM+I.PCI
Introduction
Electrical Specification
Introduction
RS-422
Page 1
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