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RS-485 Data Link Tester - PowerPoint PPT Presentation


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Team Members: Raymond Weber Lance Spotted Elk Sponsor: LED Effects. RS-485 Data Link Tester. Purpose. Design a roving data tester and a data source. Test for correct wiring during the installation of LCD panels Check for wiring errors such as shorts, opens, as well as AC crosses

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team members raymond weber lance spotted elk sponsor led effects
Team Members: Raymond Weber

Lance Spotted Elk

Sponsor: LED Effects

RS-485Data Link Tester
purpose
Purpose

Design a roving data tester and a data source.

Test for correct wiring during the installation of LCD panels

Check for wiring errors such as shorts, opens, as well as AC crosses

Verify correct DC Voltages are being supplied to the panels

Check data transmissions by sending test patterns and verifying accuracy

osaka chanel building
Osaka Chanel Building

Project that our design will be aimed at testing the cabling for initially

other buildings
Other Buildings

Hong Kong Chanel Building

Macy's Holiday Display

San Francisco

The cable tester needs to be universal enough to be

configurable for testing cabling on other projects

rs 485
RS-485

RS-485 is a multidrop Low Voltage Differential Signaling (LVDS) standard regulating the electrical characteristics and not the protocol required.

By using LVDS, long cable runs with high throughput. This is achieved by sending the signal level as a difference in DC voltages.

There are a maximum of 128 devices on a RS-485 cable depending on the load per transceiver used.

project requirements
Project Requirements

Roving Tester Requirements

Check Physical line characteristics

Polarity, AC wire crosses, missing connections, DC supply voltages

Communicate with Data Source

Initiate data verification test sequence

Collect, analyze, and display test results

Battery Operated

Universal Connector so it can be used in many projects with adaptors

Data Source Requirements

Check for AC voltage

Wall Powered

Autonomous, and will send known signal when communicating with roving tester

Universal Connector

project deliverables
Project Deliverables

Working Prototype

Source Code

Documentation

Project Documentation

Schematics

Operator Manual

potential solution
Potential Solution

Similar design for the Data Source but with reduced user interface