Olimex MOD-RS485 User guide

MOD-RS485 development board

Users Manual

All boards produced by Olimex are ROHS compliant

Revision Initial, April 2011

Copyright(c) 2011, OLIMEX Ltd, All rights reserved

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INTRODUCTION:

MOD-RS485 is a small module board realized with ADM3483ARZ - low

power, differential line transceiver designed to operate using a single 3.3 V power
supply, for half-duplex communication. This module can be used to convert RS232
signals into RS485 signals. The board comes with 10 pin cable for the UEXT, via
which it can be connected to each of our development boards with UEXT on it.

This module is an excellent choice for conveying information over long dis-

tances, allowing error-free data transmission at data rates up to 250 kbps.

BOARD FEATURES:

• Half-duplex transceiver ADM3483ARZ from Analog Devices

• UEXT connector

• RS485 connector

• FR-4, 1.5 mm, soldermask, component print

• Dimensions: 30.99x20.32mm (1.22 x 0.80")

ELECTROSTATIC WARNING:

The MOD-RS485 board is shipped in protective anti-static packaging. The board
must not be subject to high electrostatic potentials. General practice for working
with static sensitive devices should be applied when working with this board.

BOARD USE REQUIREMENTS:

Cables: The board comes with 10 pin cable for the UEXT connector.

Hardware: Any of our development boards wit UEXT connector on it.

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FUNCTIONAL BLOCK DIAGRAM:

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