Black Box RS-485 Manual De Usuario

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DUAL PORT RS-232422/485 SERIAL INTERFACE
2.1  Overview
If you need to operate RS-232, RS-422, or RS-485 devices from your PC, use
the Dual Port RS-232/422/485 Serial Interface. Connect to any device that
uses the RS-232 interface, such as modems, data-entry terminals, and plotters.
This card allows you to configure two RS-232 ports, two RS-422/485 ports, or
one of each. The Dual Port RS-232/422/485 also features greater maximum
distance and allows multi-drop communications.
The card also includes a serial utility disk with Seacom, a DOS interrupt and
driver package. Seacom allows data to be buffered, eliminating data loss in
high-speed data transfers. It also allows more than 4 ports (256 max.) to be
configured and utilized under DOS.
The README file on the serial utility disk contains information about the
latest changes and revisions. To view this file, insert the diskette into drive A
or B and type  
A:TYPE READ.ME|MORE [ENTER]
or 
B:TYPE
READ.ME|MORE [ENTER]
.
2.2  What’s Included
Your Serial Interface should come with the following items. If any of these
items are missing or damaged, contact Black Box at 724-746-5500.
(1) Dual Port RS-232/422/485 Serial Interface card,
(2) serial utility software diskettes: (1) for 32-bit Windows
®
(1) for DOS and Windows
®
3.1x,
This manual
2.  Introduction