Impulse 2803 - Manual (Page 3)

Introduction
Sealevel Systems SeaLINK+8 Page 1
Introduction
Overview
The Sealevel Systems SeaLINK+8 family of products equips the PC with 8
USB to Asynchronous serial ports. Three different model numbers are available
that offer a variety of port options. Model 2801 equips the PC with 8 additional
RS-232 ports that support a full RS-232 interface and data rates up to 460.8K
baud. Model 2802 equips the PC with 8 RS-422/485 ports that support data
rates up to 921.6K baud and provide selectable line termination and biasing. 2-
wire RS-485 line turnaround is supported via an onboard hardware circuit.
Model 2803 equips the PC with 8 user configurable RS-232/422/485 ports.
Each port is individually configurable and the interface is selected by
configuring two dipswitch positions. The advantage of this product over more
traditional approaches is that it does not require opening the computer case, nor
does it require resources such as I/O ports or IRQs. It does require a system that
supports USB both in terms of hardware and operating system.
What’s Included
The SeaLINK+8 is shipped with the following items. If any of these items is
missing or damaged, contact the supplier.
• SeaLINK+8 USB to Asynchronous Serial Converter
• USB Cable Part Number CA179 for Connecting to Upstream
Host/Hub
• Sealevel Software