ATEN UC2322, UC2324, UC4852, UC4854 User Manual

USB-to-Serial RS-232 Hub

USB-to-Serial RS-422/485 Hub

USER MANUAL

UC2322 / UC2324 / UC4852 / UC4854

FCC Information

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 instruction manual, may
cause 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 off 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 different from

that which the receiver is connected;

 Consult the dealer or an experienced radio/television technician

for help.

RoHS

This product is RoHS compliant.

SJ/T 11364-2006

The following contains information that relates to China.

ATEN USB-to-Serial Hub
User Manual

Online Registration

You can register your product at our online support center:

International http://support.aten.com

North America ATEN TECH http://www.aten-usa.com/

ATEN NJ http://support.aten.com

Online Support

International

Email Support [e-mail]

Online
Support

Telephone Support 886-2-8692-6959

North America

Technical Support http://support.aten.com

Troubleshooting
Documentation
Software Updates

product_registration

http://www.aten.com

Email Support ATEN TECH [e-mail]

ATEN NJ [e-mail]

Online
Support

Telephone Support ATEN TECH 1-888-999-ATEN

Te ch ni ca l
Support

Troubleshooting
Documentation
SW Updates

ATEN TECH http://www.aten-usa.com/support

ATEN NJ http://support.aten.com

ATEN TECH http://www.aten-usa.com

ATEN NJ http://www.aten.com

ATEN NJ 1-732-356-1703

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Packa ge C ont ent s

The ATEN USB-to-Serial Hub package contains the following
items:

 1 ATEN USB-to-Serial Hub
 1 USB Cable
 1 Installation Disk
 1 User Manual*
 1 Quick Start Guide

Check to make sure that all the components are present and that
nothing got damaged in shipping. If you encounter a problem,
contact your dealer.

Read this manual thoroughly and follow the installation and
operation procedures carefully to prevent any damage to the unit,
and/or any of the devices connected to it.

* Features may have been added to the ATEN USB-to-Serial

Hub since this manual was printed. Please visit our website to
download the most up-to-date version of the manual.

Copyright © 2008 ATEN® International Co., Ltd.

Manual Part No. PAPE-1302-100G

ATEN and the ATEN logo are trademarks of ATEN International Co., Ltd. All rights

reserved. All other trademarks are the property of their respective owners.

Printing Date: 01/2008

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Overview

The ATEN USB-to-Serial Hub provides an external plug-and-play
RS-232/RS-422/RS-485 serial connection for computers,
notebooks, laptops, and handheld computing devices that
support the USB specification. It comes with 2 or 4 standard DB­9 male connectors for peripherals to plug into, and a USB cable
for connecting to the computer's USB port, or to a USB hub.

There are four models in the ATEN USB-to-Serial Hub series:

 UC2322 – 2-Port USB-to-Serial RS-232 Hub
 UC2324 – 4-Port USB-to-Serial RS-232 Hub
 UC4852 – 2-Port USB-to-Serial RS-422/485 Hub
 UC4854 – 4-Port USB-to-Serial RS-422/485 Hub

The ATEN USB-to-Serial Hub provides mobile phones, PDAs,
digital cameras, modems and ISDN terminal adapters with high
quality serial connections at a data transfer rate of up to 115.2
Kbps. It makes the USB interface transparent to the peripherals,
allowing them to easily interface with the USB, eliminating the
setup hassle found with traditional serial port connections. As a
USB specification compliant device, the ATEN USB-to-Serial
Hub also supports energy-saving suspend and resume
operations.

The ATEN USB-to-Serial Hub provides a quick, simple, and cost­effective solution and is ideal for various kinds of communication
and automation applications.

Note:The ATEN USB-to-Serial Hub does not support devices
such as serial mice that require an IRQ number or I/O address.

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Features

 Easy way to add 2 or 4 RS-232/RS-422/RS-485 serial ports
 Fully compliant with USB 1.1; USB 2.0 compatible
 Supports RS-232 (UC2322 / UC2324) or RS-422/485

(UC4852 / UC4854) serial interface

 Each port can independently switch between RS-422 and

RS-485 (UC4852 / UC4854)

 Supports automatic handshake mode
 Up to 115.2 Kbps data transfer rate for each serial port
 Supports remote wake up and power management
 Dual data buffers for each upstream and downstream data

transfer

 No IRQ, DMA, I/O address resources required
 Supports hot-swapping and plug-and-play
 Built-in 16KV ESD protection
 Supports both bus power and external power
 Works with cellular phones, PDAs, digital cameras, modems

and ISDN terminal adapters

Regulatory Approvals

Hardware CE, FCC (Class B)

Driver Microsoft WHQL

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System Requirements

Computers

The following equipment must be installed on each computer that
is to be connected to the system:

 USB Host Controller

Operating Systems

Supported operating systems are shown in the table, below:

OS Ver sio n

Windows 2000 and higher

Linux RedHat 2.6.x and higher

SuSE 8.2 and higher

Mandriva (Mandrake) 9.0 and higher

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ATEN USB-to-Serial Hub Front View

UC2322 / UC4852

1

23

2

UC2324 / UC4854

1

No. Component Description

1 Power LED Lights to indicate that the USB-to-Serial

2 Port Link LED Lights to indicate that there is a working RS-

3 USB Port The USB cable from your computer or USB

4 RS-232/RS-422/RS-485

Serial Port

23

2

4

3

PORT 4

4

Hub is receiving power and is up and
running.

232/RS-422/RS-485 connection to the
corresponding port.

hub plugs in here.

Your peripheral devices, such as digital
cameras, scanners, PDAs, etc., plug in
here.

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ATEN USB-to-Serial Hub Rear View

UC2322 / UC4852

1

PORT 2

PORT 1

UC2324 / UC4854

1

PORT 3 PORT 1

PORT 2

Side View

2

(Spare)

No. Component Description

1 RS-232/RS-422/RS485

Serial Port

2 Power Jack The power adapter cable plugs in here.

Your peripheral devices, such as modems,
scanners, PDAs, etc., plug in here.

Note that the USB-to-Serial Hub is bus­powered so use of a power adapter is
optional.

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Windows Installation

Make sure that all devices you will be installing are
properly grounded.

Installing the Drivers

1. Insert the installation disk into your CD-ROM drive and unzip
the file named ATEN_Drivers for Windows.zip to a convenient
location.

2. In that location, find the Win32/Win64 folder and open it. Click
on MSSetup.exe. A dialog box will appear.

3. Click Install to install the driver for the USB-to-Serial Hub. To
cancel the installation, click Exit.

4. When the installation has successfully completed, the
following dialog box appears:

5. Click Exit to close the wizard.

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Connecting the ATEN USB-to-Serial Hub

1. Connect the ATEN USB-to-Serial Hub to a USB port on your
computer. The New Hardware Wizard appears:

2. Select, No, not this time, and then click Next to continue. The
following dialog box appears:

3. Leave the default choice (Install from the software

automatically), and then click Next to continue.

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4. When the installation is complete, the following dialog box
appears:

5. Click Finish to close the wizard.

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Uninstalling the Drivers

1. Insert the installation disk into your CD-ROM drive and unzip
the file named ATEN_Drivers for Windows.zip to a convenient
location.

2. In that location, open the Win32/Win64 folder.Click on the
uninstall utility. The following dialog box appears:

3. Click OK to begin the uninstall process. When the driver has
been successfully uninstalled, the following dialog box
appears:

4. Click Exit.

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Linux Installation

Installing the Driver(s)

1. Copy the ATEN driver zip file (ATEN2011.V1.1.tar.gz) onto
your desktop.

2. Untar the file using the command:

tar -xzvf ATEN2011_V1.1.tar.gz

3. In the ATEN directory, compile the driver using the command:

make

4. When this has completed, load the driver using the
command:

make load

5. Connect the ATEN USB-to-Serial Hub to a USB port on your
computer and confirm the installation using:

dmesg

The serial ports will be recognized as “ttyUSBx” as in the
following message:

USB 2-2: ATENINTLUSBSerial Adapter converter now
attached to ttyUSBx

Note: Fedora Core 5 Source can be downloaded from the

following site: http://download.fedora.redhat.com/pub/
fedora/linux/core/5/source/SRPMS/

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Uninstalling the Drivers

1. The following command will remove the driver:

make unload

2. To check whether the driver has been successfully removed,
use the command:

dmesg

3. If the driver has been successfully removed, you will see the
following message:

ATENUSBSerial adapter converter now disconnected
from ttyUSBx

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Peripherals Installation

After you have finished the software installation procedures for
your operating system and have connected the ATEN USB-to­Serial Hub to your computer, follow the steps below to connect a
peripheral device:

1. Connect the peripheral device to the ATEN USB-to-Serial
Hub.

2. Turn the peripheral on.

3. Follow the Installation Wizard’s on-screen instructions to
complete the installation.

Note: 1. This procedure only occurs the first time you connect

the peripheral. If your peripheral was previously
connected and configured for the COM port, after
you perform the adapter installation and click Finish,
the driver will connect it and install it automatically.
However, some peripheral devices, such as older
PDAs, require that you install the software for the
peripheral device before it will work properly.

2. Under Windows 2000, if you connect a modem, you
must specify it as a Standard Modem.

2

4

3

PORT 4

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Specifications

Function UC2322 UC2324 UC4852 UC4854

Device Connections 2 4 2 4

Connectors USB 1 x USB Type B Female (White)

Serial

Power 1 x DC Jack (Black)

LEDs Port 2 (Green) 4 (Green) 2 (Green) 4 (Green)

Power 1 (Orange)

Data Transfer Rate 115.2 Kbps (max.)

FIFO 16 byte Hardware FIFO

USB Specification USB 1.1 Compliant; USB 2.0 Compatible

RS-422/RS-485

RS-232 Signal

RS-422 Signal N/A TxD+/-, RxD+/-, RTS+/-,

RS-485 Signal N/A Data+/-, GND

Data Bit 5, 6, 7, 8

Stop Bit 1, 1.5, 2

Power Mode Bus Powered; use of Power Adapter is optional

Power Consumption 0.5W 0.6W 0.9W 1.0W

Environment Operating

Physical
Properties

Selection N/A Auto-detect and Switch

Te mp .

Storage
Te mp .

Humidity 0–80% RH, Non-condensing

Housing Metal

Weight 0.30 kg 0.32 kg 0.30 kg 0.32 kg

Dimensions
(L x W x H)

2 x DB-9
Male (Black)

TxD, RXD, RTS, CTS,
DTR, DSR, DCD, RI, GND

4 x DB-9
Male (Black)

12.50 x 8.15 x 2.50 cm

2 x DB-9
Male (Black)

N/A

CTS+/-, GND

0–50ºC

-20–60ºC

4 x DB-9
Male (Black)

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DB-9 Pin Assignments

Pin RS-232 RS-422 RS-485

1 DCD TxD-(A) Data-(A)

2 RXD TxD+(B) Data+(B)

3 TXD RxD+(B) -

4 DTR RxD-(A) -

5 GND GND GND

6 DSR RTS-(A) -

7RTS RTS+(B) -

8CTS CTS+(B) -

9 RI CTS-(A) -

Limited Warranty

IN NO EVENT SHALL THE DIRECT VENDOR'S LIABILITY EXCEED THE PRICE
PAID FOR THE PRODUCT FROM THE DIRECT, INDIRECT, SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE
OF THE PRODUCT, DISK OR ITS DOCUMENTATION.

The direct vendor makes no warranty or representation, expressed, implied, or
statutory with respect to the contents or use of this documentation, and specially
disclaims its quality, performance, merchantability, or fitness for any particular
purpose.

The direct vendor also reserves the right to revise or update the device or
documentation without obligation to notify any individual or entity of such revisions,
or update. For further inquires please contact your direct vendor.

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