MCC RS-232 User Manual

RS-232 to I

User’s Guide

ASCII Interface

2

C Host Adapter

with Circuit Sense

™

www.mcc-us.com

Introduction

The MCC iPort/AI 2™ RS-232 to I2C Bus host adapter with Circuit Sense allows

2

any Windows, Linux, or Mac OS X host computer to become an I

2

Slave device, transmitting or receiving I

2

one or more I

C devices across an I2C Bus.

C messages between the host computer and

C Master or

This user’s guide describes the installation and operation of the iPort/AI 2 host

2

adapter, and the RS-232 and I
Utility Pack software for quick I

C Bus interconnects. Also described are the iPort

2

C Bus communication, MS.Net and LabVIEW

libraries for custom software development, and other tools and applications.

A complete set of resources for the iPort/AI 2 is available at:

www.mcc-us.com/iPortAI-2

This product conforms to the I²C Bus specifications defined by NXP/Philips
Semiconductors.

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To find out more about I

C, we suggest you review our white paper “I2C Bus

Technical Overview” at:

www.mcc-us.com/I2CBusTechnicalOverview.pdf.

I²C is a trademark of NXP (Philips) Corporation. All trademarks acknowledged as
the property of their owners.

01-NOV-2018

Copyright© 2018 by Micro Computer Control Corporation. All rights reserved. No
part of this publication may be reproduced by any means without the prior written
permission of Micro Computer Control Corporation, PO Box 275, Hopewell, New
Jersey 08525 USA.

DISCLAIMER: Micro Computer Control Corporation makes no representations or
warranties with respect to the contents hereof and specifically disclaims any implied
warranties of merchantability or fitness for any particular purpose. Further, Micro
Computer Control Corporation reserves the right to revise the product described in
this publication and to make changes from time to time in the content hereof
without the obligation to notify any person of such revisions or changes.

WARNING - Life Support Applications: MCC products are not designed for use
in life support appliances, devices, or systems where the malfunction of the product
can reasonably be expected to result in a personal injury.

WARNING - Radio Frequency Emissions: This equipment can radiate levels of
radio frequency energy that may cause interference to communications equipment.
Operation of this equipment may cause interference with radio, television, or other
communications equipment. The user is responsible for correcting such interference
at the expense of the user.

WARNING - Electrostatic Discharge (ESD) Precautions: Any damage caused by
Electrostatic Discharge (ESD) through inadequate earth grounding is NOT covered
under the warranty of this product. See the “Electrostatic (ESD) Precautions”
section of this guide for more information.

Electronic Waste Notice - This product must NOT be thrown into general waste,
but should be collected separately and properly recycled under local regulations.

Created in the United States of America

Table of Contents

1 Overview .......................................................1

iPort/AI 2 Product Features .........................................2

iPort/AI 2 Package Contents ........................................3

System Requirements .............................................4

2 Interconnects ....................................................4

RS-232 Serial Port Connector .......................................4

DB-25 Serial Port Pinout ........................................4

DB-9 Serial Port Pinout .........................................4

iPort Power .....................................................5

Via the power jack .............................................5

2

Via the I

2

C Mini Interface Connector .......................................5

I

C interface connector ....................................5

3 Hardware Configuration ...........................................6

Circuit Sense ....................................................6

Power Source Mode ............................................6

Voltage Sense Mode ............................................6

2

C Bus Pull-up Resistors ..........................................7

I

Connecting to a Low-Voltage Target System ...........................7

Connecting to an SMBus Target System...............................7

4 ESD (Electrostatic Discharge) Precautions .............................8

Host Computer Grounding .........................................8

Case 1 - Desktop and Single-board Computers........................8

Case 2 - Laptop Computers.......................................9

Grounding Solutions ..............................................9

5 Hardware Set-Up.................................................9

Serial Port Connection............................................10

2

C Bus Connection ..............................................10

I

Power Connection ...............................................10

6. Software Support ................................................10

2

C Bus Communication Utilities ...................................10

I

iPort Utility Pack for Windows ...................................10

iPort Message Center ........................................11

iPort Message Manager ......................................11

iBurner I2C Bus EEPROM Programmer............................11

2

C Bus Software Development Tools................................11

I

MS.NET Class Library .........................................11

LabVIEW VI Library ..........................................12

ASCII Command Interface ......................................12

iPort/AI 2 Revision Report...........................................13

Additional Information..............................................13

2

Appendix A - I

C Connector Information ...............................14

Declaration of Conformity ...........................................15

FCC Statement..................................................15

CE Declaration of Conformity ......................................15

1 Overview

2

The MCC iPort/AI 2 (#MIIC-212), RS-232 to I

C Bus Host Adapter with ASCII

Interface and Circuit Sense, allows any PC, Host Computer, PLC, or Single Board

2

Computer with a legacy or add-on serial port to become an I

2

device, transmitting or receiving I

2

or more I

C devices across an I2C Bus.

C messages between the Host Computer and one

C Master or Slave

Circuit Sense, our I

2

work with the latest I

C Bus voltage sensing technology, allows the iPort/AI 2 to

2

C Bus devices at voltages as low as 0.5 volts.

1

iPort/AI 2 Product Features

• OS Support: Windows, Linux, Mac OS X, and many more.

• Host Support: Any Computer with a legacy or add-on RS-232 Serial Port.

• High Performance Processor Increases Throughput (2x to 200x).

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• External Power Jack or I

C Bus Powered (+5VDC).

• Built-in ESD, Over-voltage, and Reverse-voltage Protection.

• Switch Controlled Properties:

2

C Bus Power Source (5v@100ma).

•I

2

C Bus Voltage Sense (0.5v to 5v, Enable or Disable).

•I

2

C Bus Pull-Ups (1.8K ohm, Enable or Disable).

•I

• Software Controlled Properties:

2

C Bus Master Clock Rates: 100KHz (Fixed)

•I

2

C Bus General Call (Enable or Disable).

•I

2

C Bus Time-Out (1000 milliseconds) (Fixed)

•I

• Host Communication Flow Control (XON/XOFF or RTS/CTS)

• User Interface Echo/Prompt (Enable or Disable).

• User Data Format (HEX or ASCII/HEX)

2

• Supported I

C Bus Activities:

• Master and Slave Functions

• Transmit, Receive, and Tx/Rx Data Functions

• Multi-Master Arbitration Loss Detection

• Clock-stretch Detection

• Bus Time-Out Detection

• 7-bit Slave Address Generation and Detection

• Up to 32K data bytes in a single message

• Software Support:

• Free Application Software (Master, Slave, and EEPROM Programmer).

• Software Development Tools (MS.NET, LabVIEW, and ASCII Commands).

• Compatible with existing iPort/AI applications.

• US-FCC and EUR-CE EMC Compliant.

• RoHS/Lead-Free Compliant.

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