ATEN IC485SN, Руководство пользователя

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Overview
Although RS-232 serial ports are found on almost every
computer, because of their slow transmission speeds, limited
range, and limited networking capabilities, they are not an
effective solution for industrial strength long distance
communications systems.
Systems based on the RS-422 and RS-485 standards, on the
other hand, are not subject to the RS-232 limitations because
they utilize different voltage lines for the data and control signals.
The IC-485SN Converter is a bidirectional converter that
transparently converts RS-232 signals to RS-422 / RS-485
signals (and vice versa). The IC-485SN provides Point-to-Point;
Multidrop; and Simplex operations over distances of up to 1200
m (4000 ft.), thus permitting the creation of reliable long distance
data communications systems using standard computer
hardware.
Features

Data Transmission Controlled by the RTS Signal

DCE / DTE selectable

Point to Point/Multidrop and Simplex/Duplex Operating
Modes

External Power Not Required - Power Spplied by the RS-232
interface

Compact size