SIIG ID-SC0911-S1 User manual

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Industrial USB to 422/
485 Serial Adapter
Quick Installation Guide
04-0826A
Introduction
The Industrial USB to 422/485 Serial Adapter
provides additional RS-422/485 ports with 3KV
isolation to your PC or Mac systems.
Key Features and Benefits
• Supports serial port data transfer rates up
to 230Kb/s
• Built in 15KVDC ESD serial interface
protection
• USB bus power
• 3KV optical isolation
• Auto data direction flow control
• Wall mount ready
System Requirements
• Desktop or notebook computer with an
available USB 2.0 port

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• Windows®8 (32-/64-bit) / Windows 7 (32-
/64-bit) / Vista (32-/64-bit) / XP (32-/64-
bit) / Server 2003 & 2008 (32-/64-bit) /
Server 2008 R2
Package Contents
•Industrial USB to 422/485 Serial Adapter
• USB cable (type A/B)
• Power adapter (for ID-SC0A11-S1 only)
• 5-pin terminal block (2pcs for ID-SC0911-
S1; 4 pcs for ID-SC0A11-S1)
• 3-pin terminal block (for ID-SC0A11-S1
only)
• Software CD
• Quick installation guide
Layout
Figure 1: ID-SC0911-S1 Layout
Power LED Status LED

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Figure 2: ID-SC0A11-S1 Layout
Tx Status LED
Rx Status LED
Active LED
Pin Assignment
Figure 3: Pin Assignment

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USBtoRS-422 RS-422 device
Pin 1: TxD-
TxD-
Pin 2: TxD+
TxD+
RxD+
Pin 4: RxD+
RxD-
Pin 3: RxD-
USBtoRS-422 RS-422 device
RS-422 device
RS-422 device
Figure 4: point-to-point / 4-wire full-duplex communication
RS-422 Wire Diagram
Figure 5: point-to-multi point / 4-wire full-duplex
communication

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RS-485 Wire Diagram
Pin 1: TxD-
Pin 2: TxD+
Pin 4: RxD+
Pin 3: RxD-
Figure 6: point-to-point / 2-wire half-duplex communication
Figure 7: point-to-multi point / 2-wire half-duplex
communication
USBtoRS-485 RS-485 device
USBtoRS-485 RS-485 device
RS-485 device
RS-485 device
RxD+
RxD-

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Windows Installation
Follow the instructions below to install the
Industrial USB to 422/485 Serial Adapter drivers.
Windows 8 (32-/64-bit) / Windows 7 (32-/
64-bit) / Server 2008 R2
1. Insert the driver CD.
2. At the AutoPlay box, click Open folder to
view files, then double click Setup file.
If the driver window doesn't prompt up,
press Windows key and R to call out the
Run window, type D:\Setup.exe, and click
OK.(Change D: to match your CD/DVD-
ROM drive letter)
3. At the User Account Control, click Yes.
For 2008 R2, skip this step.
4. Repeat step 2 & 3.
5. Plug the adapter into the computer, click
Cancel at the Found New Hardware (if
prompted). The driver will be installed
automatically.

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Windows Vista (32-/64-bit)
1. Insert the driver CD, at the prompted driver
window, double click Setup file.
2. At the User Account Control, click Allow.
3. Double click Setup file, then click Allow
again.
4. Plug the adapter into the computer, click
Cancel at the Found New Hardware (if
prompted). The driver will be installed
automatically.
Windows XP (32-bit/64-bit) / Server 2003 &
2008 (32-bit/64-bit)
1. Insert the driver CD.
2. Click Start,Run, type D:\Setup.exe, click
OK.(Change D: to match your CD/DVD-
ROM drive letter)
3. Repeat step 2 two times.
For Server 2008, click Install this software
anyway if prompted.
4. Plug the adapter into the computer, the
adapter is ready for use.

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To Verify Windows Installation
1. Go to Device Manager to verify installation.
For Windows 8 / Windows 7 / Windows XP /
Server 2003 & 2008 R2: Right click Computer
or My Computer, click Manage, then click
Device Manager.
For Windows Vista: Right click Computer,
click Manage, click Continue, then click
Device Manager.
For Server 2008: Right click Computer, click
Manage, then double click Diagnostics,
and click Device Manager.
2. Double click Ports(COM & LPT),USB
Serial Port should be displayed.

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RS-422/485 Mode Setting
Follow the instructions below to set up the output
mode for each port.
1. Open the driver CD, then select folder USB
Serial Converter Set.
2. Double click USB Serial Converter Set file.
Then the following window will prompt
up. Click Scan.
Figure 8

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3. Select the desired mode for each port (RS-
422 or RS-485 ; 4 wire or 2 wire), and click
SET to save the settings.
Note: The following image is the screen shot
of ID-SC0A11-S1. For ID-SC0911-S1, there
are only two ports for setting.
Figure 9
4. At the Set Successfully window, click OK.

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Technical Support and Warranty
QUESTIONS? SIIG’s Online Support has answers! Simply visit our web site at
www.siig.com and click Support. Our online support database is updated daily with
new drivers and solutions. Answers to your questions could be just a few clicks away.
You can also submit questions online and a technical support analyst will promptly
respond.
SIIG offers a 3-year manufacturer warranty with this product. This warranty covers the
original purchaser and guarantees the product to be free of any defects in materials or
workmanship for three (3) years from the date of purchase of the product.
SIIG will, at our discretion, repair or replace (with an identical product or product
having similar features and functionality) the product if defective in materials or
workmanship. This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state. Please see our web site for more warranty details.
If you encounter any problems with this product, please follow the procedures below.
A) If it is within the store's return policy period, please return the product to the store
where you purchased from.
B) If your purchase has passed the store's return policy period, please follow the steps
below to have the product repaired or replaced.
Step 1: Submit your RMA request.
Go to www.siig.com, click Support, then REQUEST A PRODUCT REPLACEMENT
to submit a request to SIIG RMA or fax a request to 510-657-5962. Your RMA request
will be processed, if the product is determined to be defective, an RMA number will
be issued.
Step 2: After obtaining an RMA number, ship the product.
• Properly pack the product for shipping. All accessories that came with the
original package must be included.
• Clearly write your RMA number on the top of the returned package. SIIG will
refuse to accept any shipping package, and will not be responsible for a product
returned without an RMA number posted on the outside of the shipping
carton.
• You are responsible for the cost of shipping to SIIG. Ship the product to the
following address:
SIIG, Inc.
6078 Stewart Avenue
Fremont, CA 94538-3152, USA
RMA #:
• SIIG will ship the repaired or replaced product via Ground in the U.S. and
International Economy outside of the U.S. at no cost to the customer.

PRODUCTNAME
Industrial USB to 422/485 Serial Adapter
FCC RULES: TESTED TO COMPLY WITH FCC PART 15, CLASS B
OPERATING ENVIRONMENT: FOR HOME OR OFFICE USE
FCCCOMPLIANCESTATEMENT:
This 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.
THE PARTY RESPONSIBLE FOR PRODUCT COMPLIANCE
SIIG,Inc.
6078 Stewart Avenue
Fremont, CA 94538-3152, USA
Phone: [phone]
About SIIG, Inc.
Founded in 1985, SIIG, Inc. is a leading manufacturer of IT connectivity
solutions (including Serial ATA and Ultra ATA Controllers, FireWire, USB,
and legacy I/O adapters) that bridge the connection between Desktop/
Notebooksystems and external peripherals. SIIGcontinues to grow by adding
A/V and Digital Signage connectivity solutions to our extensive portfolio.
SIIGproducts offer comprehensiveuser manuals, manyuser-friendly features,
and are backed by an extensive manufacturer warranty. High quality control
standards are evident by the overall ease of installation and compatibility of
our products, as well as one of the lowest defective return rates in the industry.
SIIG products can be found in computer retail stores, mail order catalogs,
throughmajor distributors, system integrators, andVARs in the Americas and
the UK, and through e-commerce sites.
Industrial USB to 422/485 Serial Adapter is a trademark of SIIG, Inc. SIIG and the SIIG logo
are registered trademarks of SIIG, Inc. Microsoft and Windows are registered trademarks of
Microsoft Corporation. All other names used in this publication are for identification only
and may be trademarks of their respective owners.
September, 2012 Copyright © 2012 by SIIG, Inc. All rights reserved.