ATEN IC485AI Instruction Manual download pdf (Page 5)

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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-485AI Isolated Converter is a bidirectional converter that

transparently converts RS-232 signals to RS-422 / RS-485

signals (and vice versa), thus permitting the creation of reliable

long distance data communications systems using standard

computer hardware.

The IC-485AI provides Point-to-Point; Multidrop; and Simplex

operations over distances of up to 1200 m (4000 ft.). Designed

with built in optocouplers for exceptional signal isolation, plus

transformers for excellent power isolation, this extremely reliable

isolated converter enhances the quality of data communications

at the same time that it protects your equipment from electrical

surges of up to 2000 volts.

Features

 Automatic internal RS-485 bus supervision

 No external flow control signals for RS-485 required

 Transient suppression on RS-485 data lines

 LEDs for easy status monitoring

 Minimum 2000V isolation protection

 Up to 115.2 Kbps data throughput

 DCE / DTE selectable

 Point-to-Point; Multidrop; and Simplex operating modes

 Four wire full duplex; two wire half duplex

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ATEN IC485AI Instruction Manual Page 5