Texas Instruments RS485-HF-DPLX-EVM, User Manual, Page: 1 / 14

User's Guide
SLLU173A – October 2012 – Revised November 2012
RS-485 Half-Duplex Evaluation Module
This manual describes the RS-485 Half-Duplex Evaluation Module (EVM). This EVM helps designers
evaluate the device performance, supporting the fast development and analysis of data transmission
systems using any of the TI RS-485 half-duplex devices.
Contents
1 Overview
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2 EVM Setup and Precautions
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3 Powering Up the EVM and Taking Measurements
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3.1 Measurement Examples
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List of Figures
1 RS-485 Half-Duplex EVM Schematic
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2 Bridging DUT_GND with EARTH_GND
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3 Example for Stimulus and Probe Points with JMP4 and JMP14
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4 Transceiver Configuration for Normal Operation
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5 RS-485 Half-Duplex EVM Setup for Normal Transceiver Operation
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6 Configuration for Maximum Loading
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7 RS-485 Half-Duplex EVM Setup for Maximum Loading
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8 RS-485 Half-Duplex EVM Configurations: Left as Receiver EVM, Right as Transmitter EVM
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9 Top View of RS-485 Half-Duplex EVM
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10 Bottom View of RS-485 Half-Duplex EVM
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1 SLLU173A – October 2012 – Revised November 2012 RS-485 Half-Duplex Evaluation Module
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