Impulse 7201 - Manual (Page 4)

Introduction
Sealevel Systems ULTRA COMM+2.PCI Page 1
Introduction
Overview
The Sealevel Systems ULTRA-COMM+2.PCI is a two channel PCI Bus serial I/O adapter for the PC and
compatibles. It provides two field selectable RS-232/422/485 serial ports supporting data rates up to 460.8K bps.
Configure both ports as RS-232 for standard serial COM: port requirements. Choose the RS-422 mode for long
distance device connections up to 4000ft. 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.
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. UART upgrades are available providing 32,64 and 128
byte FIFOs.
What’s Included
The ULTRA COMM+2.PCI is shipped with the following items. If any of these items are missing or damaged,
contact the supplier.
• ULTRA COMM+2.PCI Serial I/O Adapter
• Serial Utility Software
• User Manual
Factory Default Settings
The ULTRA COMM+2.PCI factory default settings are as follows:
Port # Electrical Specification
Port 1 RS-422
Port 2 RS-422
To install the ULTRA COMM+2.PCI using factory default settings, refer to Installation on page 9.
For your reference, record installed ULTRA COMM+2.PCI settings below:
Port # Electrical Specification
Port 1
Port 2