Quatech DSU2-100 Manuel utilisateur

CONNECT WITH

RELIABILITY

QUATECH, INC.

5675 Hudson Industrial Parkway

Hudson, Ohio 44236-5012

Toll free: 1-800-553-1170

TEL: (330) 655-9000

FAX: (330) 655-9010

http://www.quatech.com.

SSU2/DSU2/QSU2/ESU2-100/400

User’s Manual P/N: 940-0191-101

USB-to-Serial Adapter

User’s Manual

SSU2/DSU2/QSU2/ESU2 - 100/400

1-, 2-, 4-, and 8 serial ports

information contained in this document cannot be reproduced in any form

without the written consent of Quatech, Inc. Any software programs that

might accompany this document can be used only in accordance with any

license agreement(s) between the purchaser and Quatech, Inc. Quatech

Inc. reserves the right to change this documentation or the product to

which it refers at any time and without notice.

Trademarks QUATECH® is a registered trademark of Quatech, Inc. Other product

and brand names listed in this manual may be trademarks of their

respective owners.

Disclaimer The information in this manual is believed to be accurate and reliable at

the time of posting. Notwithstanding the foregoing, Quatech assumes no

responsibility for any damage or loss resulting from the use of this

manual, and expressly disclaims any liability or damages for loss of data,

loss of use, and property damage of any kind, direct, incidental or

consequential, in regard to or arising out of the performance or form of

the materials presented herein or in any software program(s) that may

accompany this document.

Changes or modifications to this device not explicitly approved by

Quatech will void the user's authority to operate this device.

Feedback Quatech, Inc. encourages and appreciates feedback concerning this

document. Please send any written comments to the Technical Support

department at the address listed on the cover page of this manual.

Quatech USB-to-Serial Adapter User’s Manual Table of contents

Table of contents

Table of contents------------------------------------------------------------------------------------------------------------------ i

Figures ------------------------------------------------------------------------------------------------------------------------ ii

Tables ------------------------------------------------------------------------------------------------------------------------- ii

Introduction----------------------------------------------------------------------------------------------------------------------- 1

System requirements ----------------------------------------------------------------------------------------------------- 1

Features ---------------------------------------------------------------------------------------------------------------------- 2

Multiple Electrical Interface (MEI) ----------------------------------------------------------------------------- 2

Understanding the LEDs------------------------------------------------------------------------------------------- 2

IND option - surge suppression upgrade ---------------------------------------------------------------------- 2

Installing the USB-to-Serial Adapter -------------------------------------------------------------------------------------- 3

Installing under Windows XP ------------------------------------------------------------------------------------------ 3

Installing under Windows 2000 --------------------------------------------------------------------------------------- 7

Uninstalling under Windows 2000 or Windows XP-------------------------------------------------------------11

Making external connections -----------------------------------------------------------------------------------------------12

RS-232 serial connections ----------------------------------------------------------------------------------------------12

RS-422/485 serial connections-----------------------------------------------------------------------------------------13

Testing DB-9 serial ports in HyperTerminal ---------------------------------------------------------------------14

Running Hyperterminal -------------------------------------------------------------------------------------------14

Using Device Manager--------------------------------------------------------------------------------------------------------15

Accessing Device Manager ---------------------------------------------------------------------------------------------15

Exploring Device Manager screens ----------------------------------------------------------------------------------15

Windows XP and 2000 ---------------------------------------------------------------------------------------------15

Setting advanced options -----------------------------------------------------------------------------------------------21

Operating Mode (MEI adapters only) -------------------------------------------------------------------------21

Receiver active… (MEI adapters only) ------------------------------------------------------------------------22

AuxOut/AuxIn (MEI adapters only)----------------------------------------------------------------------------23

Low-Latency Mode --------------------------------------------------------------------------------------------------23

Troubleshooting-----------------------------------------------------------------------------------------------------------------24

Appendix A -----------------------------------------------------------------------------------------------------------------------25

Specifications---------------------------------------------------------------------------------------------------------------25

Appendix B -----------------------------------------------------------------------------------------------------------------------27

Warranty information ---------------------------------------------------------------------------------------------------27

Page i Rev 1.01 (February 2007)

Table of Contents Quatech USB-to-Serial Adapter User’s Manual

Figures

Figure 1 - Windows XP Found new hardware prompt.............................................................................. 3

Figure 2 - Windows XP Choose your search and installation options prompt ........................................ 4

Figure 3 - Windows XP Searches drivers prompt...................................................................................... 5

Figure 4 - Windows XP Wizard installs the software ............................................................................... 6

Figure 5 - Windows XP Finished installing prompt.................................................................................. 6

Figure 6 - Windows 2000 Found new hardware prompt........................................................................... 7

Figure 7 - Windows 2000 Search for or display drivers prompt............................................................... 8

Figure 8 - Windows 2000 Locate driver files prompt ................................................................................ 8

Figure 9 - Windows 2000 Finished searching for driver files prompt...................................................... 9

Figure 10 - Windows 2000 Finished installing prompt........................................................................... 10

Figure 11 – Device Manager ..................................................................................................................... 11

Figure 12 - DB-9 connector pinout ........................................................................................................... 12

Figure 13 - Use of DTEs and DCEs in a communication link ................................................................ 12

Figure 14 - Cabling requirements for RS-232 devices............................................................................. 13

Figure 15 - Windows XP/2000 Device Manager properties, General tab.............................................. 16

Figure 16 - Windows XP/2000 RS-232/422/485 Advanced Options dialog window............................... 17

Figure 17 - Windows XP/2000 RS-232 Advanced Options dialog window ............................................. 17

Figure 18 - Windows XP/2000 USB serial port, Port settings box ......................................................... 18

Figure 19 - Windows XP/2000 USB serial port, Advanced settings box ................................................ 19

Figure 20 - Windows XP/2000 USB serial port properties, Driver box.................................................. 19

Figure 21 - Windows XP/2000 USB serial port, Driver file details box ................................................. 20

Tables

Table 1 - Device port and connection options ............................................................................................ 1

Table 2 - LED codes..................................................................................................................................... 2

Table 3 - Product series summary .............................................................................................................. 2

Table 4 - RS-232 signals on DB-9 connector ............................................................................................ 12

Table 5 - RS-422/485 signals on DB-9 connector..................................................................................... 13

Page ii Rev 1.01 (February 2007)

Quatech USB-to-Serial Adapter User’s Manual Introduction

Introduction

This User’s Manual describes how to setup and install your Quatech

USB-to-Serial Adapter.

The Quatech SSU2-100, DSU2-100, QSU2-100 and ESU2-100,

respectively, provide one, two, four and eight independent RS-232

serial interfaces to the host PC via the Universal Serial Bus (USB)

port.

Note: These products comply

fully with USB Specification

version 2.0. They will also

operate over slower USB 1.1

connections at a slightly

reduced performance level.

The Quatech DSU2-400, QSU2-400 and ESU2-400, respectively,

provide two, four and eight independent asynchronous serial

interfaces via the USB port. Each of these interfaces can be used as

desired for RS-232, RS-422 or RS-485 communications.

Table 1 - Device port and connection options

Device Ports Connection Device Ports Connection

SSU2-100 1 RS-232

DSU2-100 2 RS-232 DSU2-400 2 RS-232/422/485

QSU2-100 4 RS-232 QSU2-400 4 RS-232/422/485

ESU2-100 8 RS-232 ESU2-400 8 RS-232/422/485

Note: The “-400” designation

indicates an “MEI” device.

MEI is an acronym for

“Multiple Electrical Interface.”

The interface is software-

selectable for each serial port.

Each adapter uses high-speed UARTs and deep FIFOs, allowing each

channel to obtain data rates up to 921.6 kbps. The adapters are

powered over their USB connection (bus-powered), eliminating the

need for an external power supply. The adapters are Plug-and-Play

devices and require no hardware configuration.

System requirements

Quatech’s USB-to-Serial adapters are supported under the Windows

2000/XP (and later) and Linux operating systems. One USB port is

required to connect the adapter to your computer. You can use either

a built-in USB port or an add-in USB host adapter. We recommend

the use of a USB 2.0 port for best performance. Contact our sales

department for details on current software offerings. All device

drivers are available for download from the Quatech World Wide Web

site at http://www.quatech.com/.

Rev 1.01 (February 2007) Page 1

Introduction Quatech USB-to-Serial Adapter User’s Manual

Features

Multiple Electrical Interface (MEI)

MEI adapters (model numbers ending with “-400”) are shipped with a

factory default of all serial ports set for RS-232 connections. Each

port can be individually configured for RS-232, RS-422/485 full-

duplex, or RS-422-485 half-duplex operation.

Understanding the LEDs

The LEDs inform you of the configuration of the adapter’s serial

ports. Each serial port has one associated LED located on the back

panel to the right of the port’s DB-9 connector. The following table

lists the possible states of the LEDs and their meaning.

Table 2 - LED codes

LED color Meaning

Red Port is configured for RS-232.

Green Port is configured for RS-422/485.

IND option - surge suppression upgrade

Quatech offers an IND option, or surge-suppression board upgrade, to

provide improved performance and industrial-grade reliability.

The IND option provides essential protection for reliable use in an

industrial environment. Each communication line has a surge

suppressor capable of sustaining up to 40-A, 20-μs peak transient

surges, a clamping voltage of 30 V (15.1 V for 200/300 units), and a

peak energy dissipation of 0.1 Joules.

Table 3 - Product series summary

Part number IND option Part number IND option

SSU2-100 no

SSU2-100IND yes

DSU2-100 no DSU2-400 no

DSU2-100IND yes DSU2-400IND yes

QSU2-100 no QSU2-400 no

QSU2-100IND yes QSU2-400IND yes

ESU2-100 no ESU2-400 no

ESU2-100IND yes ESU2-400IND yes

Page 2 Rev 1.01 (February 2007)

Quatech USB-to-Serial Adapter User’s Manual Installing the software

Installing the USB-to-Serial Adapter

This section explains how to install the USB-to-Serial adapter under

different operating systems. Please locate and follow the procedure

for your computer’s operating system.

Caution! Be sure to allow

the installation process to

finish without interruption. The USB-to-Serial adapter includes Windows device drivers that

enable the serial ports to appear to Windows as standard COM ports.

Installing under Windows XP

Follow these steps to install the adapter under Windows XP.

Step Procedure Description

Step 1 Turn on the power to your computer

system.

This is the system in which the device is to

be installed.

Step 2 Plug the wide flat end of the USB cable

into the downstream connector.

This is the connector located on the back of

the computer or USB hub.

Step 3 Plug the square end of the USB cable into

the back of the USB-to-Serial adapter.

Windows tells you that it has found new

hardware and launches the Found New

Hardware Wizard.

Figure 1 - Windows XP Found new hardware prompt

Step Procedure Description

Step 4 Insert the Quatech installation CD into

your CD-ROM drive.

This is the CD that shipped with the

product.

Step 5 Select the “Advanced” option. Click the

Next button.

The Choose your search and installation

options prompt displays.

Figure 1 illustrates the

Windows XP Found new

hardware prompt. The Found

New Hardware Wizard

launches automatically when

you first plug in the USB-to-

Serial adapter.

Rev 1.01 (February 2007) Page 3

Installing the software Quatech USB-to-Serial Adapter User’s Manual

Figure 2 - Windows XP Choose your search and installation options prompt

Step Procedure Description

Step 6 Select Search removable media (floppy,

CD-ROM).

If necessary, you can also select the

Include this location in the search:

option and browse to the location with

the USB-to-Serial drivers.

The complete path is E:\Serial Port

Adapters\Drivers\Windows 98, Me,

2000, XP for USB.

Replace E:\ with your CD-ROM

designation

Step 7 Click the Next button. Windows searches for drivers for the

adapter.

Figure 2 illustrates the

Windows XP Choose your

search and installation

prompt.

Page 4 Rev 1.01 (February 2007)

Quatech USB-to-Serial Adapter User’s Manual Installing the software

Figure 3 - Windows XP Searches drivers prompt

Step Procedure Description

Step 8 The Wizard locates and starts to install

the necessary software.

The Wizard installs the software prompt

displays, followed by the Finished

installing prompt.

Figure 3 illustrates the

Windows XP Searches for

drivers prompt. When the

Wizard finds the USB-to-

Serial drivers, this screen

disappears.

Rev 1.01 (February 2007) Page 5

Installing the software Quatech USB-to-Serial Adapter User’s Manual

Figure 4 - Windows XP Wizard installs the software

Figure 5 - Windows XP Finished installing prompt

Step Procedure Description

Step 11 Press the Finish button to continue. The USB adapter installation is

complete.

Figure 5 shows the Windows

XP Finished installing

prompt. It indicates that the

adapter has been successfully

installed.

Page 6 Rev 1.01 (February 2007)

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