StarTech.com ICUSB422 Manual de usuario
Manual Revision: 11/05/2012
For the most up-to-date information, please visit: www.startech.com
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
ICUSB422
6ft RS422 RS485 USB to Serial Cable
Adapter w/ COM Retention
*actual product may vary from photos
Instruction Manual
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 dierent 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
Packaging Contents ................................................................................................................................. 1
System Requirements .............................................................................................................................. 1
Installation ..............................................................................................1
Hardware Installation .............................................................................................................................. 1
Driver Installation ...................................................................................................................................... 1
Verifying Installation ................................................................................................................................ 2
DIP Switch Settings ................................................................................2
DB9 Pin Assignment ..............................................................................3
Specications ..........................................................................................4
Technical Support ..................................................................................5
Warranty Information ............................................................................5
Instruction Manual
1
Introduction
Packaging Contents
• 1 x USB to Serial Adapter Cable
• 1 x Driver CD
• 1 x Instruction Manual
System Requirements
• Available USB port
• Microsoft® Windows® 98SE/ME/2000/XP/Server 2003/Vista/7,
or Linux® kernel 2.4.x or later
Installation
Hardware Installation
1. Power on the computer and make sure the operating system is fully loaded.
2. Plug the USB connector on the ICUBS422 adapter cable into an available USB port
on the host computer.
3. The operating system will automatically detect the new hardware and prompt for
drivers.
4. Once drivers are successfully installed, connect the DB9 connector to the serial cable
for your RS-422/485 device.
Driver Installation
Windows 2000/Server 2003/XP
1. When the Found New Hardware wizard appears on the screen, insert the Driver CD
into your CD-ROM drive. If you are prompted to connect to Windows Update, please
select the “No, not this time” option and click Next.
2. Select the option “Install Drivers Automatically (Recommended)” and then click the
Next button.
3. Windows should now start searching for the drivers. Once this has completed, click
the Finish button.
Windows Vista/7
1. When the Found New Hardware window appears on the screen, click on the “Locate
and install drivers software (recommended)” option. If prompted to search online,
select the “Don’t search online” option.
2. When prompted to insert the disc, insert the Driver CD that came with the card, into
your CD-ROM drive and Windows will automatically proceed to search the CD.
Instruction Manual
2
3. If a Windows Security dialog window appears, click the “Install this driver software
anyway” option to proceed.
4. Once the driver is installed, click the Close button.
Verifying Installation
Windows 2000/Server 2003/XP/Vista/7
From the main desktop, right-click on “My Computer” (“Computer” in Vista), then select
Manage. In the new Computer Management window, select Device Manager from the
left window panel.
Double-click on the “Ports (COM & LPT)” option. An additional USB serial COM port
should be visible. The port is ready to connect to new devices.
DIP Switch Settings
Switch Switch Name Switch
Position Description
1 485/422
485
(default) 2-wire RS-485 mode
422 4-wire RS-422 mode
2 Echo/No Echo
Echo Transmitting data will be
echoed back.
No Echo
(default) No data echo
3 No Term/Term
No Term
(default) Terminator resistor is disabled
Term Terminator resistor is enabled
4 None On/O Switch is not enabled
Instruction Manual
3
• NOTE: In “422” mode, the ECHO setting is not used.
• The Echo mode is useful for detecting if there is data collision occurring on RS-
485. If the echoed data is not equal to the transmitted data, then data collision is
occurring.
DB9 Pin Assignment
DB9 Pin RS-422 RS-485
1 TxD - Data -
2 TxD + Data +
3 RxD + NC
4 RxD - NC
5 GND GND
6 NC NC
7 NC NC
8 NC NC
9 NC NC
Instruction Manual
4
Specications
Bus Interface USB 2.0
Connectors 1 x USB type A
1 x 9-pin DB9 male
Maximum Baud Rate 921.6Kbps
Termination Resistor 120 Ohm
Chipset FTDI FT232RL
Serial Protocol RS-422 (4-wire)
RS-485 (2-wire)
Power Consumption 110mA
Compatible Operating Systems Windows 98SE/ME/2000/XP/Server
2003/Vista/7, or Linux
Instruction Manual
5
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
ocers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of prots, 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.
Hard-to-nd made easy. At StarTech.com, that isn’t a slogan. It’s a promise.
StarTech.com is your one-stop source for every connectivity part you need. From
the latest technology to legacy products — and all the parts that bridge the old and
new — we can help you nd the parts that connect your solutions.
We make it easy to locate the parts, and we quickly deliver them wherever they need
to go. Just talk to one of our tech advisors or visit our website. You’ll be connected to
the products you need in no time.
Visit www.startech.com for complete information on all StarTech.com products and
to access exclusive resources and time-saving tools.
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.
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