CONNECT WITH RELIABILITY USB-to-Serial Adapter User’s Manual SSU2/DSU2/QSU2/ESU2 - 100/400 1-, 2-, 4-, and 8 serial ports 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.
Copyright Copyright © 1998 - 2006, Quatech, Inc. All rights are reserved. The 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.
Quatech USB-to-Serial Adapter User’s Manual Table of contents Table of contents Table of contents------------------------------------------------------------------------------------------------------------------ i Figures ------------------------------------------------------------------------------------------------------------------------ ii Tables ------------------------------------------------------------------------------------------------------------------------- ii Introduction--------------------
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 ...........
Quatech USB-to-Serial Adapter User’s Manual Introduction Introduction 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. This User’s Manual describes how to setup and install your Quatech USB-to-Serial Adapter.
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 fullduplex, or RS-422-485 half-duplex operation. Understanding the LEDs The LEDs inform you of the configuration of the adapter’s serial ports.
Quatech USB-to-Serial Adapter User’s Manual Installing the software Installing the USB-to-Serial Adapter Caution! Be sure to allow the installation process to finish without interruption. 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. The USB-to-Serial adapter includes Windows device drivers that enable the serial ports to appear to Windows as standard COM ports.
Installing the software Quatech USB-to-Serial Adapter User’s Manual Figure 2 - Windows XP Choose your search and installation options prompt Figure 2 illustrates the Windows XP Choose your search and installation prompt. Step Step 6 Procedure Description 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.
Quatech USB-to-Serial Adapter User’s Manual Installing the software Figure 3 - Windows XP Searches drivers prompt Figure 3 illustrates the Windows XP Searches for drivers prompt. When the Wizard finds the USB-toSerial drivers, this screen disappears. Step Step 8 Procedure Description The Wizard locates and starts to install the necessary software. The Wizard installs the software prompt displays, followed by the Finished installing prompt. Rev 1.
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 Figure 5 shows the Windows XP Finished installing prompt. It indicates that the adapter has been successfully installed. Step Step 11 Page 6 Procedure Description Press the Finish button to continue. The USB adapter installation is complete. Rev 1.
Quatech USB-to-Serial Adapter User’s Manual Installing the software Installing under Windows 2000 Follow these steps to install the USB-to-Serial adapter under Windows 2000. 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 of USB hub.
Installing the software Quatech USB-to-Serial Adapter User’s Manual Figure 7 - Windows 2000 Search for or display drivers prompt Figure 7 shows the Windows 2000 Search for or display drivers prompt. Step Procedure Description This is the CD that shipped with the adapter. Step 5 Insert the Quatech installation CD into your CD-ROM drive. Step 6 Select Search for a suitable driver for my device (recommended) Step 7 Click the Next button. The Locate driver files prompt displays.
Quatech USB-to-Serial Adapter User’s Manual Step Step 8 Installing the software Procedure Description Select CD-ROM drives. If necessary, you can also select Specify a location: and browse to the desired 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 drive designation. Step 9 Click the Next button. Windows searches for drivers for the adapter.
Installing the software Quatech USB-to-Serial Adapter User’s Manual Figure 10 - Windows 2000 Finished installing prompt Figure 10 is the Windows 2000 Finished installing prompt. It indicates that the adapter has been successfully installed. Step Step 14 Page 10 Procedure Description Press the Finish button to continue. The USB-to-Serial adapter installation is complete. Rev 1.
Quatech USB-to-Serial Adapter User’s Manual Installing the software Uninstalling under Windows 2000 or Windows XP Follow these steps in the event that you need to uninstall or reinstall the USB-to-Serial software. 1. From the Control Panel, select System. 2. Press the Hardware tab. 3. Click on Device Manager. Figure 11 – Device Manager 4. Scroll down to Multi-port serial adapters and expand. 5.
Making external connections Quatech USB-to-Serial Adapter User’s Manual Making external connections Quatech USB-to-Serial adapters are equipped with male DB-9 connectors. The following figures and tables show the serial port pinouts for RS-232 and RS-232/422/485 applications. Figure 12 - DB-9 connector pinout RS-232 serial connections RS-232 devices are classified by their function as either Data Terminal Equipment (DTE) or Data Communication Equipment (DCE).
Quatech USB-to-Serial Adapter User’s Manual l Note: In many applications, DCEs are unnecessary. This allows you to use a null modem cable (modem eliminator cable) to directly connect two DTEtype devices. Making external connections DTE- and DCE-type devices have complementary pinouts that allow terminals and modems to connect directly using a one-to-one cable as shown in Figure 14. Two DTE-type devices can be connected by a null modem cable. A typical null modem cable is also shown in the figure.
Making external connections Quatech USB-to-Serial Adapter User’s Manual Testing DB-9 serial ports in HyperTerminal This section explains how to test the functionality of your USB-toSerial adapter using Hyperterminal for RS-232 ports and RS-422/485 ports. An RS-232 loopback connector is included with the USB-to-Serial adapter. For MEI models, an RS-422/485 loopback is also included. Running Hyperterminal Step Procedure Description Step 1 Attach the loopback connector to the DB-9 connector.
Quatech USB-to-Serial Adapter User’s Manual Using configuration utilities Using Device Manager This section explains how to use Device Manager to view the properties of the serial ports enumerated by the USB-to-Serial adapter. Accessing Device Manager Step Procedure Description Step 1 Select Start – Control Panel. Step 2 Double click the System icon. The System Properties dialog box opens. Step 3 Click the Hardware tab, and then press the Device Manager button.
Using configuration utilities Quatech USB-to-Serial Adapter User’s Manual Figure 15 - Windows XP/2000 Device Manager properties, General tab Figure 15 illustrates the Windows XP/2000 General Tab, which tells you whether the USB-to-Serial adapter is working properly. Step Step 3 Page 16 Procedure Description Click the USB Serial Ports Advanced Options tab to view the port setting properties. The Advanced Options dialog box displays. Rev 1.
Quatech USB-to-Serial Adapter User’s Manual Using configuration utilities Figure 16 - Windows XP/2000 RS-232/422/485 Advanced Options dialog window Figure 16 illustrates the Advanced Options dialog for MEI devices. You can set the connector signal selection, the duplex mode, and the receiver control. Figure 17 - Windows XP/2000 RS-232 Advanced Options dialog window Figure 17 illustrates the Advanced Options dialog for RS-232-only devices. There are no user-configurable settings.
Using configuration utilities Step Step 4 Quatech USB-to-Serial Adapter User’s Manual Procedure Description The RS-232 USB Serial Port Advanced Options dialog box displays the firmware revision of the USB-to-Serial adapter. There are no user-configurable settings for RS-232-only USB-to-Serial adapters. The RS-422/485 Advanced Dialog box also lets you set the connector signals selection and the duplex mode, and receiver control.
Quatech USB-to-Serial Adapter User’s Manual Step Step 10 Using configuration utilities Procedure Description Press the Advanced button. The Advanced Options dialog box opens. Figure 19 - Windows XP/2000 USB serial port, Advanced settings box Step Procedure Description Step 11 Use the drop down box to select the port whose settings you wish to change. Click Cancel to return to the Port Settings tab. Step 12 Click the Driver tab to view the driver information and update the driver.
Using configuration utilities Step Quatech USB-to-Serial Adapter User’s Manual Procedure Description ¾ Update the device drivers ¾ Uninstall your USB-to-Serial adapter. ¾ Return to the previously installed driver. (XP only) ¾ Save your changes and exit. Don’t use this option. Uninstall the entire device instead by using the Driver dialog for the multiport serial adapter. ¾ Abandon your changes and return to the Device Manager.
Quatech USB-to-Serial Adapter User’s Manual Using configuration utilities Setting advanced options (MEI adapters only) Note: SSU2/DSU2/QSU2/ESU2-100 adapters have no userselectable options. The USB-to-Serial port advanced properties can be altered from the Device Manager window. Options for each serial port can be individually controlled.
Using configuration utilities Quatech USB-to-Serial Adapter User’s Manual RS-422/485 Half Duplex (2-wire) RTS control Note: The serial port’s LED will glow green in RS-422/485 mode. This mode configures the serial port to use an RS-422/485 electrical interface. The half-duplex operation is the same as in the AutoToggle mode, except that the RTS signal is used to control the transmit drivers instead of the automatic control.
Quatech USB-to-Serial Adapter User’s Manual Using configuration utilities AuxOut/AuxIn (MEI adapters only) This setting determines which signals are routed to the AuxIn and AuxOut pins of the serial port connectors. Regardless of which setting is chosen, each UART's DTR output is internally looped back to its own DSR, DCD, and RI inputs. Loopback (default) Note: In half-duplex (2-wire) modes, the UART’s RTS output is looped back to its CTS input.
Using configuration utilities Quatech USB-to-Serial Adapter User’s Manual Troubleshooting Note: Any unauthorized repairs or modifications will void the adapter’s warranty. This section lists some common problems and their causes. If the information below does not provide a solution, contact Quatech technical support. Problem Cause Solution The USB-to-Serial adapter cannot communicate with other equipment. ¾ The cables are not 1. Check all cables to make sure that they connected correctly.
Quatech USB-to-Serial Adapter User’s Manual Appendix A Appendix A Specifications Bus interface USB Specification 2.0, high speed 480 Mbps. Backward compatible with USB 1.1 full speed 12 Mbps. Baud rates Up to 921,600 bps.
Appendix A Page 26 Quatech USB-to-Serial Adapter User’s Manual Connectors DB-9 Male Dimensions 3.6” L x 1.7” W x 1.0” H (SSU) 9.18” L x 5.25” W x 1.675” H (DSU/QSU) 9.18” L x 5.25” W x 2.363” H (ESU) Power Requirements USB bus powered (no external power connection required) Suspend Power: < 500 uA Unconfigured Power: < 100 mA Configured Power: < 500 mA Temperature: Operating: 0 to 70 C Storage: –50 to 80 C Humidity 10 to 90% OS Support Windows 2000, Windows XP, Linux Rev 1.
Quatech Freedom USB Adapter User’s Manual Appendix C Appendix B Warranty information Quatech, Inc. warrants the SSU2/DSU2/QSU2/ESU2-100/400 to be free of defects for five (5) years from the date of purchase. Quatech, Inc. will repair or replace any board that fails to perform under normal operating conditions and in accordance with the procedures outlined in this document during the warranty period. Any damage that results from improper installation, operation, or general misuse voids all warranty rights.
