StarTech.com ICUSB2321X User manual

Manual Revision: 02/27/2012
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
For the most up-to-date information, please visit: www.startech.com
ICUSB2321X
ICUSB2322X
ICUSB2324X
Professional USB to Serial Adapter Hub
with COM Retention
*actual product may vary from photos

FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
o and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other protected names
and/or symbols of third-party companies not related in any way to StarTech.com. Where they
occur these references are for illustrative purposes only and do not represent an endorsement of
a product or service by StarTech.com, or an endorsement of the product(s) to which this manual
applies by the third-party company in question. Regardless of any direct acknowledgement
elsewhere in the body of this document, StarTech.com hereby acknowledges that all trademarks,
registered trademarks, service marks, and other protected names and/or symbols contained in this
manual and related documents are the property of their respective holders.

Instruction Manual i
Table of Contents
Introduction........................................................................................................................................................1
Package Contents.....................................................................................................................................1
System Requirements ............................................................................................................................1
Hardware Guide ...............................................................................................................................................2
ICUSB2321X..................................................................................................................................................2
ICUSB2322X..................................................................................................................................................2
ICUSB2324X..................................................................................................................................................3
Installation............................................................................................................................................................4
Verifying Successful Installation.......................................................................................................4
Conguration.....................................................................................................................................................5
Pinout......................................................................................................................................................................5
Specications.....................................................................................................................................................6
Technical Support...........................................................................................................................................7
Warranty Information....................................................................................................................................7

Instruction Manual 1
Introduction
Thank you for purchasing a StarTech.com Professional USB to RS-232 Serial Adapter. This
innovative device oers a simple way to utilize serial devices using a USB port, and stores
settings that are unique to the connected device in non-volatile memory (COM Port Retention),
allowing you to retain the desired settings regardless of the USB Port to which the adapter is
connected.
A cost-eective solution, the USB to Serial Adapter is ideal for connecting a serial modem,
barcode scanner, PDA or any other device with serial sync to a host computer USB port, saving
the expense of having to upgrade the peripheral device to USB compliance.
Package Contents
• 1 x USB to RS-232 Serial Adapter
• 1 x USB cable (ICUSB2322X/ ICUSB2324X only)
• 1 x Driver CD
• 1 x Instruction Manual
System Requirements
• USB enabled computer system with available USB port
• Microsoft® Windows® XP/ Server 2003/ Vista/ 7 (32/64-bit)

Instruction Manual 2
Hardware Guide
ICUSB2321X
DB9 Male
Port
USB type A
connector
ICUSB2322X
Front Panel
Rear Panel
USB type B
connector
DC Power Input
(optional)
DC Terminal Block
Input (optional)
DB9 Male
Port

Instruction Manual 3
ICUSB2324X
Front Panel
Rear Panel
USB type B
connector
DC Power Input
(optional)
DC Terminal Block
Input (optional)
DB9 Male
Port

Instruction Manual 4
Installation
Please note: In order to ensure successful installation, please install the necessary
software (included) on the intended host computer prior to connecting the USB Serial
Adapter to the host.
1. Insert the Driver CD into the CD or DVD-ROM drive on the host computer.
2. Browse to, and execute the Setup.exe le.
3. When the installation progress launches, a welcome screen will appear. Click Next to
proceed.
4. You will be asked to select a destination where the StarTech.com USB Serial Adapter
will be installed. Please click on Browse to manually select a location. Otherwise, leave
the default destination in place and click Next.
5. Please wait while the necessary drivers are copied and installed.
6. Once completed, a message indicating that the drivers have been successfully
installed will appear. Please click Finish to conclude the software installation.
7. Connect the USB to Serial Adapter to the computer system. Windows will
automatically detect the device and install the drivers.
Verifying Successful Installation
Windows XP/ Server 2003/ Vista/ 7
From the main desktop, right-click on “My Computer” (“Computer” in Vista/ 7), then select
“Manage”. In the Computer Management window, select “Device Manager” from the left
window panel.
*all screenshots for reference only
Double-click on the “Ports (COM & LPT)” option. Additional COM port(s) should be visible.
The port is automatically sequentially numbered by Windows, but can be changed
through the “Properties” by right-clicking on the port.

Instruction Manual 5
Conguration
To congure the USB Serial port:
1. In the Device Manager, double-click on “Ports (COM & LPT)” to expand.
2. Right-click on the newly added serial port and select “Properties”.
3. From within the Properties window, the “Setting“ tabs oer conguration options for the USB
Serial Adapter functions:
Pinout
Pin Signal
1 DCD
2 TxD
3 RxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI

Instruction Manual 6
Specications
ICUSB2321X ICUSB2322X ICUSB2324X
Number of Ports 1 2 4
Host Interface USB 2.0
Connectors
1 x USB type A
(male)
1 x DB9 (male)
1 x USB type B
(female)
2 x DB9 (male)
1 x DC Power
1 x 2-pin Terminal
Block
1 x USB type B
(female)
4 x DB9 (male)
1 x DC Power
1 x 2-pin Terminal
Block
Serial Protocol RS-232
Maximum Data
Transfer Rate 230 Kbps
Compatible
Operating Systems
Windows 2000/ 7(32/64-bit)/
Vista(32/64-bit) /
Server 2003(32/64-bit) / XP(32/64-bit)
Regulatory
Certications CE/ FCC/ ROHS
Product Weight 33.4g 300g 593g
Product Dimensions
(LxWxH)
207.0mm x
35.0mm x
135.0mm
113.0mm x
80.0mm x
25.0mm
165.2mm x
118.0mm x
25.0mm

Instruction Manual 7
Technical Support
StarTech.com’s lifetime technical support is an integral part of our commitment to provide
industry-leading solutions. If you ever need help with your product, visit www.startech.com/
support and access our comprehensive selection of online tools, documentation, and downloads.
For the latest drivers/software, please visit www.startech.com/downloads
Warranty Information
This product is backed by a two year warranty.
In addition, StarTech.com warrants its products against defects in materials
and workmanship for the periods noted, following the initial date of purchase.
During this period, the products may be returned for repair, or replacement with
equivalent products at our discretion. The warranty covers parts and labor costs only.
StarTech.com does not warrant its products from defects or damages arising from misuse, abuse,
alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their ocers,
directors, employees or agents) for any damages (whether direct or indirect, special, punitive,
incidental, consequential, or otherwise), loss of prots, loss of business, or any pecuniary loss,
arising out of or related to the use of the product exceed the actual price paid for the product.
Some states do not allow the exclusion or limitation of incidental or consequential damages. If
such laws apply, the limitations or exclusions contained in this statement may not apply to you.

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StarTech.com is an ISO 9001 Registered manufacturer of connectivity and technology
parts. StarTech.com was founded in 1985 and has operations in the United States,
Canada, the United Kingdom and Taiwan servicing a worldwide market.