ATEN UC485 User manual

UC485
USER MANUAL
USB to RS-422/485 Adapter

EMC Information
FEDERAL COMMUNICATIONS COMMISSION STATEMENT: 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 harmful 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 harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at
his own expense.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate this
equipment.
Warning: Operation of this equipment in a residential environment could cause
radio interference.
The device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
KCC Statement
이기기는 업무용 (A 급) 전자파 적합기기로서 판매자 또는 사용자는 이
점을 주의하시기 바라며 , 가정외의 지역에서 사용하는 것을 목적으로
합니다 .
RoHS
This product is RoHS compliant.

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UC485 User Manual
Online Registration
Telephone Support
Technical Support
For international online technical support – including
troubleshooting, documentation, and software updates:
http://eservice.aten.com
For North American technical support:
International http://eservice.aten.com
International 886-2-8692-6959
China 86-400-810-0-810
Japan 81-3-5615-5811
Korea 82-2-467-6789
North America 1-888-999-ATEN ext 4988
United Kingdom 44-8-4481-58923
Email Support [email protected]
Online
Technical
Support
Troubleshooting
Documentation
Software Updates
http://support.aten.com
Telephone Support 1-888-999-ATEN ext 4998

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Package Contents
The UC485 USB to RS-422/485 Adapter package contains the
following items:
1 UC485 USB to RS-422/485 Adapter
1 Terminal Adapter
1 User Instructions*
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 preventany damage totheunit,
and/or any of the devices connected to it.
*Features may have been added to the UC485 since this
manual was printed. Please visit our website to download the
most up-to-date version of the manual.
Copyright © 2017 ATEN® International Co., Ltd.®
Manual Date: 2017-08-31
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.

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Overview
The ATEN UC485 USB to RS-422/485 Adapter is a high quality
industrial adapter cable designed to instantly add an RS-422 /
RS-485 port to your PC or laptop via a USB port. The adapter is
powered via the USB connection, therefore an external power
supply is not needed.
The UC485 adapter lets you use a single USB connection to
create plug-and-play serial transfers without additional cables or
complicated device installations. It lets you connect any RS-485
or RS-422 device to your computer's USB port without
experiencing computer lock-ups, I/O or driver problems. It is the
idealsolutionforconnectingindustrialdevices suchas laboratory
machines, measuring equipment, automated systems,
monitoring devices, and many more – where mission-critical
applications are required.

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Features
Converts a USB port to a Legacy COM port
DB-9 female to terminal block adapter for easy wiring
Fast COM Port Transmission – up to 921.6 Kbps per serial
port
Supports Windows Vista, 7 and above, Mac and Linux
LEDs for indicating RS-422 (Orange) or RS-485 (Green)
Supports Terminal/ECHO setting by switch
Plug-and-Play – no power supply needed
Supports USB hot-plugging

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System Requirements
Hardware
1 USB enabled computer
Software
Windows Vista, 7 and above, Mac and Linux

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Components
UC485
No. Component Description
1 USB Connector This connector plugs in a USB enabled computer.
2 DB-9 Connector Connect this end of the cable to an RS-422 or RS-485 serial
device.
3 Connector Nut This nut provides aninlet for the connector screws on the Terminal
Adapter (included with this package).
4 Power LED This LED lights Orange (RS-422) or Green (RS-485) to indicate
the adapter is connected and powering a device from the
computer’s USB port.
5 Mode Selector These three DIP switches allow you to configure the Terminator,
Echo, and device settings.
6Terminal
Connectors These five terminal blocks provide a wired connection to the serial device.
6
7
2
4
3
5
Cable
1
8
Terminal
Adapter

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7 DB-9 Connector
(Female) The terminal adapter plug connects to the cable’s DB-9 connector.
8 Connector
Screws These two screws go into the connector nuts on the cable’s DB-9 connector.
No. Component Description

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Installation
Hardware
To setup the UC485, use the diagram on the next page (the
numbers in the diagram correspond with the numbered
instructions below), and do the following:
1. Plug the USB connector to the computer and allow the drivers
to install.*
2. Plug the DB-9 connector to an RS-422/RS-485 serial device.
3. (Optional) If you are using the terminal connectors, plug the
Terminal Adapter included with this package into the DB-9
Connector, secure the connector screws, and then use the
terminal blocks to wire a device to the UC485 (SEE PAGE).
4. Use the Mode Selector to configure the DIP switch settings
for the connection type (SEE PAGE).
5. Power on the serial devices.
Note: Ifyouareusing an oldercomputerthatdoesn’tcontainthe
drivers for this device, please go to our website to
download the UC485 drivers and install them before
setting up the hardware.
1. Make sure that the power to any device that you
connect to the installation has been turned off.
2. Make sure that all devices you will be installing are
properly grounded.

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5 4 3 2 1
To RS-422/485
Serial Port
To USB Port
To RS-422/485
Serial Device
1
4
3
2

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Configuration and Settings
Terminal Block
PIN RS-422 (4-Wire) RS-485 (2-Wire)
1 TxD-(A) Data-(A)
2 TxD+(B) Data+(B)
3RxD+(B)
4RxD-(A)
5GND GND
5 4 3 2 1

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DIP Switch
Switch Name Position Description
1 Term / No Term
No Term
(default) The terminator resistor is disabled.
Term The terminator
resistor is enabled.
2 Echo / No Echo Echo The data transmitted
is echoed back.
No Echo
(default) No data is echoed back.
3 485 / 422 485
(default) RS-485 2-wire mode
422 RS-422 4-wire mode

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DB9 Pin Assignment
PIN RS-422 (4-Wire) RS-485 (2-Wire)
1TxD-(A) Data-
2TxD+(B) Data+
3RxD+(B)
4RxD-(A)
5GND GND
6RTS-
7RTS+
8CTS+
9CTS-
12345
6789
Male DB9

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Specifications
Function UC485
Device Connections 1
Connectors
Serial Port 1 x DB-9 Male (Silver)
USB Port 1 x USB Type-A Male (White)
LED
Power Status RS-422 (Orange) / RS-485 (Green)
Interface
RS-485 Baud Rate: 75bps~921.6 Kbps
Flow Control
RTS/CTS, XON/XOFF Stop Bit: 1, 1.5, 2
FIFO
64 Bytes Parity: Even, Odd, None, Mark, Space
Power
Consumption DC5V, 0.228W
Environmental
Operating Temperature 0–40º C
Storage Temperature -20–60º C
Humidity 0–80% RH, Non-condensing
Physical Properties
Housing Plastic
Weight 0.09 kg
Dimensions (L x W x H) 9.53 x 4.10 x 2.20 cm

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Limited Hardware Warranty
ATEN warrants its hardware in the country of purchase against flaws in materials
and workmanship for a Warranty Period of two [2] years (warranty period may
vary in certain regions/countries) commencing on the date of original purchase.
This warranty period includes the LCD panel of ATEN LCD KVM switches. Select
products are warranted for an additional year (see A+ Warranty for further
details). Cables and accessories are not covered by the Standard Warranty.
What is covered by the Limited Hardware Warranty
ATEN will provide a repair service, without charge, during the Warranty Period. If
a product is defective, ATEN will, at its discretion, have the option to (1) repair
said product with new or repaired components, or (2) replace the entire product
with an identical product or with a similar product which fulfills the same function
as the defective product. Replaced products assume the warranty of the original
product for the remaining period or a period of 90 days, whichever is longer.
When the products or components are replaced, the replacing articles shall
become customer property andthe replacedarticles shall become the property of
ATEN.
To learn more about our warranty policies, please visit our website:
http://www.aten.com/global/en/legal/policies/warranty-policy/