MCC iPort/LAN 2 User manual

User’s Guide
Ethernet to I2C Host Adapter
ASCII Fast Mode
with Circuit Sense
www.mcc-us.com

Introduction
The MCC iPort/LAN 2™ (#MIIC-210), Ethernet to I2C Host Adapter with ASCII
Fast Mode and Circuit Sense, allows a Windows PC, with an ethernet port or
network access, to become an I2C Master or Slave device, transmitting or receiving
I2C messages between the PC and one or more Direct (Crossover Cable Connected),
Local (LAN Connected), or Remote (Internet Connected) I2C devices across an I2C
Bus.
This user’s guide describes the installation and operation of the iPort/LAN 2 host
adapter, Virtual Communication Port (VCP) driver, iPort Utility Pack Software for
Windows, and includes the Programmer’s Reference for creating custom
applications.
Additional resources ca be found at:
www.mcc-us.com/iPortLAN-2
Are you new to I2C? Want to know more? We suggest you review our paper on the
I2C Bus at: www.mcc-us.com/I2CBusTechnicalOverview.pdf
This MCC product uses NXP (Philips) components and is licensed to use the I²C
Bus.
“Purchase of Philips I²C components conveys a license under the Philips’ I²C patent
to use the components of the I²C system, provided the system conforms to the I²C
specifications defined by Philips.”
I²C is a trademark of NXP (Philips) Corporation.
18-DEC-2017

Copyright© 2017 by Micro Computer Control Corporation. All rights are 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 has been tested and
found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC rules. These limits are designed to provide reasonable protection against
interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause
interference to radio communications. Operation of this equipment in a residential
area is likely to cause interference, in which case the user will be required to correct
the interference at his own expense.
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.
Printed in the United States of America

Table of Contents
Part 1 - iPort/LAN 2 Ethernet to I2C Bus Host Adapter ..................1
1 Overview .......................................................2
iPort/LAN 2 Ethernet to I2CBusHostAdapter..........................5
iPort/LAN2VirtualCommunicationsPort(VCP) .......................5
iPort Utility Pack Software .........................................5
iPort/LAN2Programmer’sResources ................................5
SystemRequirements .............................................5
2 Interconnects ....................................................6
EthernetConnector ...............................................6
VirtualCommunicationsPort(VCP) ...............................6
+5VDCPowerJack...............................................7
I2C Mini Interface Connector .......................................7
Interrupt(/INT)SignalConnector....................................8
3 HardwareConfiguration ...........................................9
CircuitSense ....................................................9
PowerSourceMode ............................................9
VoltageSenseMode ............................................9
Pull-upResistors .................................................9
ConnectingtoaLow-VoltageTargetSystem ..........................10
ConnectingtoanSMBusTargetSystem..............................10
SpecialNoteforSMBusUsers .....................................10
4 ESD (Electrostatic Discharge) Precautions ............................11
Host Computer Grounding ........................................11
Grounding Solutions .............................................11
5 VirtualComPort ................................................12
DirectConnect..................................................12
LocalConnect ..................................................13
RemoteConnect ................................................13
VCPDriverInstallation...........................................14
6 HardwareSet-Up................................................17
EthernetConnection .............................................17
I2CBusConnection ..............................................17

+5VDCPowerConnection ........................................17
Part 2 - iPort Utility Pack for Windows ...............................18
1 iPort Utility Pack for Windows .....................................19
iPortMessageCenter.............................................19
iPortMessageManager ...........................................20
2 SystemRequirements ............................................21
3 iPort Utility Pack Installation ......................................21
InstallingfromtheWeb...........................................21
4 iPortMessageCenter ............................................22
MessageCenterOperations........................................23
StartingtheMessageCenter .....................................23
SelectingtheAdapter ..........................................23
SelecttheCommunicationsPort ..................................24
OptionsMenu ................................................24
EstablishAdapterCommunicationsLink ...........................24
Entering or Editing I2CMessages .................................24
Set I2CAddress ...............................................25
SetMessageRead/WriteDirection ................................25
SpecifyRepeatedStartMessages .................................25
SetTimeDelay ...............................................26
Specify Write Data or Read Byte Count ............................26
InsertingandDeletingMessages..................................27
SavingorLoadingMessageLists .................................27
SendtheMessageList..........................................27
SpecialEventHandling.........................................27
Slave Not Acknowledging ......................................28
CommandLineArguments ........................................29
SetAdapterType..............................................30
Set RS-232 Communication Port .................................30
Set RS-232 Baud Rate ..........................................30
Set I2CBusClockRate .........................................30
Enable/INTSignalMonitor .....................................31
StopOnBusy ................................................31
StopOnArbitrationLoss .......................................31
Stop On Slave Negative Acknowledgment ..........................31
BeepOnBusy ................................................31

BeepOnArbitrationLoss .......................................32
Beep On Slave Negative Acknowledgment .........................32
BeepOn/INTAssert...........................................32
Load I2CMessageListFile......................................32
Saved I2CMessageListFile .....................................33
AutoOpen...................................................33
AutoSend ...................................................33
AutoExit....................................................33
5 iPort MessageManager ..........................................34
MessageManagerOperations ......................................35
StartingtheMessageManager ...................................35
SelecttheAdapter.............................................35
EstablishAdapterCommunicationsLink ...........................36
BasicSetup ..................................................36
AdvancedSetup ..............................................37
Adapter’s Own I2CSlaveAddress ..............................37
GeneralCallEnable .........................................37
I2CBusMasterBitRate ......................................37
I2CBusTime-Out...........................................37
EnableINTSignalMonitor ...................................37
Diagnostic Setup ..............................................38
LogFileLevel .............................................38
LogFileName .............................................38
LogFileSize...............................................38
Sending I2CMessages..........................................39
MasterOperations.............................................39
SpecifyingtheDestinationAddress ...............................39
RepeatedStartMessages........................................39
AutoRepeat..................................................40
Master Transmitting Data .......................................40
SpecifyingMasterTxMessageBytes ...........................40
Sending Master Transmit Messages .............................41
Master Receive Data ...........................................41
SpecifyingDatatoRead......................................41
Negative Acknowledge Last Byte ..............................42
Master Transmit and Receive ....................................42
SlaveOperations ..............................................42
Slave Transmit Data ...........................................42
Slave Receive Data ............................................42

6 Uninstalling Software Components ..................................42
Uninstalling iPort Utility Pack for Windows ...........................43
UninstallingVCPDeviceDriver....................................43
Part 3 - iPort/LAN 2 Programmer’s Reference .........................44
QuickStart .......................................................45
ASCIICommandInterface ..........................................46
Synchronous Interface Events ......................................47
iPort/LAN2Reset.............................................47
StatusDisplay ................................................48
SerialCommunicationsBaudRate ................................48
Close I2CConnection ..........................................48
Set Destination I2CSlaveAddress ................................49
Echo/PromptControl ..........................................49
SerialCommunicationsFlowControl..............................49
I2CGeneralCallControl........................................50
HexOnlyDisplayControl.......................................50
Set iPort/LAN’s Own I2CSlaveAddress ...........................51
I2CBusClockRateControl .....................................51
CommandMenuDisplay .......................................51
InterruptSignalControl/Status ...................................52
Open I2CConnection ..........................................52
MasterReadMessage ..........................................53
Slave Transmit Message ........................................53
Master Transmit Message .......................................55
Set I2CBusTime-oUtinmsec ...................................56
DisplayFirmwareVersion ......................................56
eXtendedCommands ..........................................56
Display Tx bYte Count .........................................59
Asynchronous Interface Events ....................................60
Slave Transmit Request .........................................60
Slave Receive Complete ........................................60
General Call Receive Complete ..................................60
iPort/LANReady .............................................61
Slave Not Acknowledging ......................................61
iPort/LANBusy ..............................................61
I2CBusArbitrationLoss........................................61
I2CBusErrorDetected .........................................61
I2CBusTime-outDetected ......................................62

iPort/LAN2ConnectionClosed ..................................62
InvalidCommandArgument.....................................62
Slave Transmit Request Not Active ...............................62
InvalidiPort/LANCommand ....................................62
iPort/LAN Receive Buffer Overflow ..............................63
ExampleCode ....................................................64
iPort/LANReset ................................................64
iPort/LAN Initialization ..........................................64
Master Transmit Message .........................................64
Master Receive Message .........................................64
CommunicationEventProcessing...................................65
iPort/LAN Revision Report .........................................68
Additional Information ............................................68
Appendix A - I2C Connector Information .............................69
Declaration of Conformity .........................................70

1
Part 1 - iPort/LAN 2 Ethernet to I2C Bus Host Adapter
Part 1
Ethernet
to
I2C Bus Host Adapter
with
Circuit Sense™
User’s Guide
Model: MIIC-210

2
1 Overview
The MCC iPort/LAN 2 (#MIIC-210), Ethernet to I2C Bus Host Adapter with ASCII
Fast Mode and Circuit Sense, allows a Windows PC with network access, to
become an I2C Master or Slave device, transmitting or receiving I2C messages
between the PC and one or more direct, local (LAN) or remote (Internet) I2C
devices across an I2C Bus.
Circuit Sense, our new I2C Bus voltage sensing technology, allows the iPort/LAN 2
to work with the latest I2C Bus devices at voltages as low as 0.5 volts.

3
iPort/LAN 2 Product Features:
• Access Direct, Local (LAN) or Remote (Internet) I2C devices from your PC.
• High Performance Processor Increases Throughput (2x to 200x).
• External Power Jack or I2C Bus Powered (5VDC).
• Built-in ESD, Over-voltage, and Reverse-voltage Protection.
• Switch Controlled Properties:
•I
2C Bus Power Source or Voltage Sense (5v@100ma Source or 0.5v to 5v
Voltage Sense).
•I
2C Bus Pull-Ups (1.8K ohm, Enable or Disable).
• Software Controlled Properties:
•I
2C Bus Master Clock Rates: 23KHz, 86KHz, 100KHz Std, 400KHz Fast.
•I
2C Bus General Call Enable.
•I
2C Bus Time-Out (0-32K ms).
•I
2C Bus Interrupt Signal Control (Assert, Release, Monitor).
• Host Communication Flow Control (XON/XOFF or RTS/CTS).
• User Terminal Interface Echo/Prompt (Enable or Disable).
• User Data Format (HEX or ASCII-HEX).
• Supported I2C Bus Activities:
• Master and Slave Functions.
• Transmit, Receive, and TxRx Data Functions.
• Multi-Master Arbitration Loss Detection.
•I
2C Bus Error Detection.
• Clock-Stretch Detection/Processing.
• Bus Time-Out Detection.
• Interrupt Signal Generation and Detection.
• 7-bit Slave Address Generation and Detection.
• Up to 32K data bytes in a single message.
• SMBus™ Packet Error Detection.
• eXtended Commands for 2-Wire “I2C-Like” Low-level SCL/SDA Signal
Control.
• Software Support:
• Free Application Software (Master, Slave, and EEPROM Programmer).
• Free Software Development Tools (MS.NET and LabVIEW Libraries).
• Compatible with existing iPort/AI, iPort/AFM, iPort/USB, and i2cStick
applications.
• US-FCC and EUR-CE EMC Compliant.
• RoHS/Lead Free Compliant.

4
iPort/LAN 2 Package
The iPort/LAN 2 package include the following items:
• iPort/LAN 2, Ethernet to I2C Bus Host Adapter.
•I
2C Bus Mini Clip-lead Cable (5-wire, 1ft.)
• Ethernet Interface Cable (Standard, 3 ft.).
• Global 5VDC Power Supply.
• iPort/LAN 2 Quick Start Guide.
• iPort/LAN 2 Travel Case.
• Online Items*:
• iPort/LAN 2 Datasheet.
• iPort/LAN 2 User’s Guide (this document).
• iPort/LAN 2 Virtual ComPort Driver.
• iPort/LAN 2 Utility Pack Software.
• Application Software
• Software Development Tools
(* www.mcc-us.com/iPortLAN-2)

5
1.1 iPort/LAN 2 Ethernet to I2C Bus Host Adapter
The iPort/LAN 2 host adapter is an Ethernet-based device that plugs into a Direct,
Local (LAN), or Remote (Internet) network and generates I2C Bus signals.
1.2 iPort/LAN 2 Virtual Communications Port (VCP)
The iPort/LAN 2 uses a Virtual Communications Port (VCP) driver to create a
virtual serial port within a Windows-based PC. To the Windows PC, the VCP looks
just like a legacy serial communications port (COMn), allowing standard serial
communication programming methods to communicate with the iPort/LAN 2. No
special network programming is required. The iPort/LAN 2 VCP is available to the
host computer whenever the iPort/LAN is attached to an accessible network.
1.3 iPort Utility Pack Software
The iPort Utility Pack Software package includes the iPort Message Center and
Message Manager applications to help you easily send and receive I2C Bus
messages.
1.4 iPort/LAN 2 Programmer’s Resources
Our MS.NET Class Library and LabVIEW VI Library provide the tools to quickly
create custom I2C Bus applications. The iPort/LAN 2 Programmer’s Reference
section of the iPort/LAN 2 User’s Guide provides a low-level programmer’s guide
to creating custom I2C Bus applications.
1.5 System Requirements
a. A host computer with Direct, Local, or Remote Ethernet network access.
b. Windows XP (x86/x64) or above.

6
2 Interconnects
The iPort/LAN 2 includes interconnections:
2.1 Ethernet Connector
The Ethernet connector provides connection from the I2C adapter to a Direct, Local,
or Remote host computer, with Link Detection (Yellow, Left) and Network Activity
(Green, Right) status LEDs.
In a typical setup, a PC uses a standard Ethernet cable, or WiFi, to connect to an
Ethernet hub, switch, or access point. From that point, a local network, or the
Internet, completes the link to the iPort/LAN 2 adapter. A Direct-connect setup uses
a crossover Ethernet cable to connect the iPort/LAN 2 directly to the Ethernet port
on a host computer.
2.1.1 Virtual Communications Port (VCP)
The iPort/LAN 2 provides a Virtual Communications Port (VCP) interface via a
software driver installed on the host computer. Once the driver is installed,
Windows will automatically create a new ComPort (COMn) on the host computer.
The VCP hides the complexities of a network physical interface, and provide access
to local or remote iPort/LAN 2 devices.
Application programs running on the host computer communicate with the
iPort/LAN 2 via the standard Windows Communications Application Program
Interface (API). See section 5, Virtual ComPort, for additional VCP driver
information.

7
Communication signals included in the VCP interface include:
• TX - Transmit Data from the Host Computer to the iPort/LAN 2.
• RX - Receive Data from the iPort/LAN 2 to the Host Computer.
• RTS - Request to Send from the Host Computer to iPort/LAN 2.
• CTS - Clear to Send from the iPort/LAN 2 to the Host Computer.
2.2 +5VDC Power Jack
The iPort/LAN 2 adapter requires 300ma of REGULATED +5 volt power. This
power can be supplied in one of two ways:
• Power via the +5VDC power jack (2.5mm, Center Positive).
If the I2C Bus adapter is powered via its +5VDC power jack, and the Mode
switch is in Source position, up to 100ma of +5VDC power is available to
external circuits via the +V wire in the I2C Bus connector.
• Power via the I2C Bus interface connector (+V Pin).
If 300ma of REGULATED +5V power is available in the target system, and the
Mode switch is in Source position, the I2C Bus adapter can be powered via the
+V pin in the I2C Bus connector.
See the “Hardware Setup” section for additional details.
2.3 I2C Mini Interface Connector
The iPort/LAN 2 I2C Bus host adapter includes a five wire (1x5) 2.54 mm (.100"),
positive locking, shrouded header receptacle connector (see Appendix A) for
interfacing to an external I2C Bus. Lines provided include:
•I
2C Clock (SCL)
•I
2C Data (SDA)
•I
2C /INTerrupt
• Ground
•+V
Minimum wiring for I2C Bus communications include I2C Bus Clock, Data, and
Ground.

8
NOTE: See the Hardware Configuration section below for additional information
on configuring the I2C Bus Interface.
I2C Bus Mini Interface Receptacle
Mini Interface Receptacle Pinout
An I2C Bus Clip Lead Cable (White=SCL, Red=+5VDC, Green=SDA,
Black=Ground, Gray=_INT) is provided to connect the I2C adapter to an external
I2C Bus. I2C Bus Interface Cables and modular receptacle connectors are available
(see Appendix A). Since there is no standard I2C Bus connector, you may want to
add a modular receptacle connector to your target system, or cut off one end of an
Interface cable and add a connector compatible with your target system.
2.4 Interrupt (/INT) Signal Connector
The Interrupt (/INT) signal is an extra pin found on some I2C devices. The /INT
signal allows a slave-only device to attract the attention of a bus master device by
lowering the /INT signal to a logical low voltage level.
The iPort/LAN 2 provides an open-drain /INT signal which can be connected to a
corresponding pin on a master or slave device. The /INT signal allows the
iPort/LAN 2 to participate in interrupt signaling between master or slave devices.
An interrupt output (/INT=low) is generated upon receiving an iNterrupt Assert
command from the host computer. The interrupt signal is released (/INT = high)
when the iPort/LAN 2 is addressed as an I2C Bus slave device, or an iNterrupt
Release command is received from the host computer.
Interrupt monitoring is enabled upon receiving an Enable /INT Monitor command
from the host computer. Interrupt monitoring causes the iPort/LAN 2 to monitor the

9
/INT signal level, and send a notification to the host computer when the /INT signal
changes state.
3 Hardware Configuration
3.1 Circuit Sense
The iPort/LAN 2 includes MCC’s Circuit Sense technology. Circuit Sense allows
the I2C interface +V pin to operate in two modes, Power Source Mode and
Voltage Sense Mode. Mode selection is controlled by the MODE slide switch on
the side of the unit enclosure.
Power Source Mode - The +V pin can supply power (5v @ 100 mA) Vcc to an
external I2C Bus system. In Power Source Mode, the voltage of the iPort/LAN 2
SCL, SDA, and /INT internal pull-ups, if enabled, and Voltage Sense circuit
(0.3Vcc LowMAX, 0.7Vcc HighMIN) is connected to the adapter’s +5v power
supply. (Use of the +V pin in Power Source Mode is user optional).
Power Source Mode is similar to the standard mode of operation on earlier
versions of MCC I2C Bus host adapters.
Voltage Sense Mode - The +V pin is connected to the external I2C Bus system
pull-up supply voltage (0.5v to 5v) Vcc, and automatically adjusts iPort/LAN 2
SCL, SDA, and /INT Voltage Sense circuit levels to match (0.3Vcc LowMAX,
0.7Vcc HighMIN). In Voltage Sense Mode, the voltage of the iPort/LAN 2 SCL,
SDA, and /INT internal pull-ups, if enabled, is equal to the external voltage (Vcc)
applied to the +V wire. (Use of the +V wire in Voltage Sense Mode is
REQUIRED).
3.2 Pull-up Resistors
I2C Bus systems are based on open-collector technology requiring pull-up devices
on each signal wire. These pull-up devices usually take the form of pull-up resistors
connected to bus power.
The I2C adapter includes a PULL-UP slide switch used to enable or disable internal
I2C Bus 1.8K ohm pull-up resistors attached to the SCL, SDA, and /INT lines.
Every I2C Bus system must have at least one pull-up on the signal lines. Use this
switch to configure the pull-up resistors for your system.

10
3.3 Connecting to a Low-Voltage Target System
If you are connecting the I2C adapter to a low-voltage (<5v) target system, you
should follow these steps BEFORE applying power:
• Using the adapter MODE slide switch, put the adapter is Sense Mode.
• If you target system does NOT supply I2C Bus pull-ups, use the adapter
PULLUPS slide switch to enable the adapter’s internal 1.8K ohm pull-ups.
• Connect the I2C connector +V wire to the target system I2C Bus power. The I2C
adapter will be powered from its own +5V power supply, and adapters pull-ups,
if enabled, and Voltage Sense circuit will be powered by the target system’s low-
voltage power supply.
3.4 Connecting to an SMBus Target System
If you are connecting the I2C adapter to a SMBus target system, you should follow
these steps BEFORE applying power:
• Shut off the I2C adapter’s internal pull-ups (See Pull-up Resistor section).
• Use external SMBus rated (appoximately15k ohms) pull-up resistors. These
pull-ups may already be present in the target system.
• Visit our I2C versus SMBus FAQ page (www.mcc-us.com/I2CSMBusFAQ.htm).
• See the SMBus Specification for additional details.
Special Note for SMBus Users: MCC’s I2C adapters are designed to be I2C Bus
compatible, not SMBus compatible. Some features of the SMBus protocol not
supported include time-outs, device reset, and Packet Error Check byte processing.
The non-supported SMBus features may, or may not, permit the use of the I2C
adapter in your SMBus application. Consult the MCC FAQ web page and SMBus
Specification for details.

11
4 ESD (Electrostatic Discharge) Precautions
Electrostatic discharge is defined as the transfer of charge between bodies at
different electrical potentials. Electrostatic discharge can change the electrical
characteristics of a semiconductor device, degrading or destroying it. Electrostatic
discharge also may upset the normal operation of an electronic system, causing
equipment malfunction or failure.
When connecting the I2C adapter to a host computer and a target system, extreme
care must be taken to avoid electrostatic discharge. Failure to follow ESD protection
procedures when using the I2C adapter could damage the host computer, I2C
adapter, or the target system, and void product warranty coverage.
4.1 Host Computer Grounding
Case 1 - Desktop and Single-board Computers. The chassis on a desktop or
single-board host computer must be connected to earth ground to comply with
safety regulations. If the computer chassis is NOT connected to earth ground for
some reason (i.e., use of a two-prong power mains plug), the host computer power
supply ground will float to some unknown voltage potential.
Case 2 - Laptop Computers. Laptop computers present special ESD problems. Most
laptop computers use an external double-insulated mains power supply which is
NOT connected to the mains earth ground. This means that the laptop chassis is
floating at some unknown voltage potential.
In either case, upon connection to the I2C adapter and the target system, the host
computer will discharge energy through its serial port to the I2C adapter, and on to
the target system. This discharge could damage the host computer, I2C adapter, and
the target system.
4.2 Grounding Solutions
To avoid damage to the host computer, I2C adapter, or target system, follow these
instructions:
• Wear an earth grounded wrist strap, or discharge any static charge build-up,
when handling the I2C adapter or any target system devices.
• Ensure that both the host computer and target system are connected to a common
earth ground point.

12
Direct Connect
• Make sure that all interconnections are made BEFORE applying power to the
host computer, I2C adapter, and target system.
• If you are using a laptop computer or host computer that is NOT connected to
mains earth ground, make a hard-wired connection from the host computer (i.e.,
port connector shell) and the target system ground connector to a common earth
ground point.
• Avoid plugging and unplugging system components while the host computer or
target system is powered.
• Ensure that any devices connected to the target system are properly grounded to
the common earth ground point.
• If unsure how to properly ground system components, seek electrical expert help.
WARNING: Any damage caused by Electrostatic Discharge (ESD) through
inadequate earth grounding is NOT covered under the warranty of this product.
5 Virtual ComPort
Communication between a host computer and the iPort/LAN 2 is based upon a
Virtual ComPort (VCP) driver installed on the host computer, and a network
connection between the host computer and the iPort/LAN 2. The VCP driver
associates a host computer ComPort number with the network address of the
iPort/LAN 2. Once the VCP driver is installed, the host computer uses the Virtual
ComPort to communicate with the iPort/LAN 2.
A host computer can establish communication with an iPort/LAN 2 three different
ways, Direct Connect, Local Connect, or Remote Connect.
Direct Connect provides a direct connection between the host computer and the
iPort/LAN 2. A Virtual ComPort (VCP) driver is installed on the host computer,
and an Ethernet Crossover Cable is used to connect the iPort/LAN 2 to a wired
Ethernet Port on the host computer. During VCP driver installation on the host
computer, the iPort/LAN 2 is assigned a Static IP address and a ComPort number.