Manuale d’uso / di manutenzione del prodotto QSC(LP)-300 del fabbricante Quatech
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QSC(LP)-200/300 Four Channel RS-422/485 Asynchronous Communications Adapter for PCI bus User's Manual QUATECH, INC. TEL: (330) 655-9000 5675 Hudson Industrial Parkway FAX: (330) 655-9010 Hudson, Ohio 44236 http://www.
WARRANTY INFORMATION Quatech, Inc. warrants the QSC(LP)-200/300 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.
1998 - 2006, Quatech, Inc. NOTICE The information contained in this document cannot be reproduced in any form without the written consent of Quatech, Inc. Likewise, 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.
Declaration of Conformity Manufacturer's Name: Quatech Inc. Manufacturer's Address: 5675 Hudson Industrial Parkway Hudson, Ohio 44236 (USA) Application of Council Directive: 89/336/EEC Stand.
29 7 PCI Resource Map ........................................... 28 6.9 RS-422/485 Peripheral Connection .............................. 27 6.8 RS-422/485 Peripheral Connection .............................. 26 Termination Resistors ..................
31 9 Troubleshooting ............................................... 30 8 Specifications .................................................. 29 Base Address and Interrupt Level (IRQ) .
1 General Information The Quatech, Inc. QSC(LP)-200/300 provides four RS-422 or RS-485 asynchronous serial communication interfaces for IBM-compatible personal computer systems using the PCI expansion bus. The QSC(LP)-200/300 uses Quatech's new Enhanced Serial Adapter design.
2 Hardware Configuration The QSC(LP)-200/300 is automatically configured at boot time by the computer's BIOS or operating system. There are no required switches or jumpers to set for installation. This chapter lists a number of optional jumper settings that control various hardware features.
2.1.3 Force High-Speed UART Clock (X8, pins 17 and 18) This jumper forces an increase of the UART input clock frequency by a factor of eight. This feature can allow legacy software to use baud rates above 115,200 bits per second.
3 Hardware Installation 1. Turn off the power of the computer system in which the QSC(LP)-200/300 is to be installed. 2. Remove the system cover according to the instructions provided by the computer manufacturer. 3. Make any desired optional jumper setting changes.
4 Windows Configuration 4.1 Windows Mille nnium 1. After inserting the QSC(LP)-200/300 for the first time the "Add New Hardware Wizard" will begin. Select "Search for the best driver for your device.". Check the "Removable media" and "Specify location" box.
4.2 Windows 2000 1. After inserting a QSC(LP)-200/300 for the first time, the "Add New Hardware Wizard will appear at start up. Click the "OK" button. 2. When the following dialog box appears, insert the Communications Driver CD (shipped with the device).
4.3 Windows 98 1. After inserting a QSC(LP)-200/300 for the first time, the "Add New Hardware Wizard will appear at start up. Click the "Next" button. 2. Select "Search for the best driver for you device". Click the "Next" button.
4. The following dialog box will display the appropriate INF file on the cd in drive. Click the "Next" button. 5. Window will copy the INF file from the cd and display a final dialog indication that the process is complete. Click the "Finish" button.
4.4 Windows 1995 Windows 95 maintains a registry of all known hardware installed in your computer. Inside this hardware registry Windows 95 keeps track of all of your system resources, such as I/O locations, IRQ levels, and DMA channels.
NOTE : You may be able to skip this step if you are certain that your system has the latest version of these files installed. If you do not have your Windows 95 install disks immediately available, click "OK" anyway. A dialog box appears with an option to Skip the files.
4.6 Viewing Resources with Device Manager This discussion applies equally to Windows 95/98/ME and 2000/XP. Windows maintains a registry of all known hardware installed within the computer. Inside this hardware registry Windows keeps track of all the computer's resources, such as base I/O addresses, IRQ levels, and DMA channels.
Range and Interrupt Request resource allocations. These will match those of the “parent device.” Click "Cancel" to exit without making changes.
4.6.1 Changing Resource Settings with Device Manager 1. Start the Windows 95/98/ME Device Manager . 2. Double click on the hardware class Multi-Port Serial Adapters to list hardware devices in the class. 3. The QSC(LP)-200/300 “parent device” belongs to this hardware class.
The X8 clock mode locks the ports hardware clock at eight times the standard rate. The baud rate the port runs at will always be eight times the rate requested by the application. This mode is useful for legacy applications which cannot request baud rates over 115.
Receivers are always enabled. In a Half Duplex mode, you will receive what you transmit (sometimes called echo). Always Receive Receive Control RTS routed to CTS, AUXIN routed to RCLK, and TCLK routed to AUXOUT. Used to connect ports transmitting at different baud rates.
Hardware automatically enables the transmitters when transmitting. Transmitters will turn off three bit-times after the last stop bit of the last character, regardless of baud rate. Used in two-wire communication. Auto Toggle DTR is set to enable the transmitters.
5 Other Operating Systems Device drivers for Windows NT and OS/2 are also available for the QSC(LP)-200/300. The board can be used under DOS and other operating systems as well in many circumstances. The software described below can be obtained from the Quatech web site if it did not come with the board.
5.3.1 QTPCI.EXE Quatech's "QTPCI" utility supplies the information required when modifying the serial port settings of the application. This program should be run from real DOS, not in a Windows DOS box. Figure 4 shows the Basic Mode display for the QSC(LP)-200/300 after the "Q" key has been pressed.
Figure 5 shows the Expert Mode display for the QSC(LP)-200/300 after the "Q" key has been pressed. The information from the Basic Mode display is presented along with more details such as the Vendor and Device IDs, PCI Class Code, size of memory and I/O regions, etc.
6 External Connections The QSC(LP)-200/300 provides four differential communication signals per channel. The two output signals are Transmit Data (TxD) and Auxiliary Output (AUXOUT). The two input signals are Receive Data (RxD) and Auxiliary Input (AUXIN).
Control”, or “Clocks” selections under “RS-422/485 connector set-up” on the RS-422/485 tab of each port’s property dialog. 6.5 AUXIN/AUXOUT Loopback The AUXIN signal is an input from the external device, and connecting it to the AUXOUT signal provides for a loopback mode of operation.
6.7 Termination Resistors No termination resistors are provided on the ports. B oth output and input signals are connected only to the external connector.
6.8 RS-422/485 Peripheral Connection The QSC(LP)-200/300 is a DTE device which connects to peripheral equipment through four fe male D-9 connectors. The onboard connector is a D-44 connector, which is brought out into four separate D-9 connectors via a custom cable assembly .
6.9 RS-422/485 Peripheral Connection The QSC(LP)-200/300 connects to peripheral equipment through four male D-9 connectors. The serial port connector definitions are listed in Figure 10.
7 PCI Resource Map Listed below are the PCI resources used by the QSC(LP)-200/300. Such information may be of use to customers writing their own device drivers or other custom software. A detailed description of the QSC(LP)-200/300's UARTs is available on the Quatech web site.
8 Specifications Bus interface: PCI, 32-bit bus, Universal Signalling Voltage IBM -compatible computers Dimensions: approx. 4.725" x 2.5" Serial ports Controller: 16750 with 64-byte FIFOs Interface: Custom cable to four female D-9 connector s Transceivers: MAX-3076E or compatible Differential output: 2V min.
9 Troubleshooting Listed here are some common problems and frequent causes of those problems. If the information here does not provide a solution, contact Quatech technical support. Any unauthorized repairs or modifications will void the QSC(LP)-200/300's warranty.
QSC(LP)- 200/300 User's Manual Revision 1.14 November 2006 940-0146-114 Quatech QSC(LP)-200/300 User's Manual 32.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Quatech QSC(LP)-300 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Quatech QSC(LP)-300 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Quatech QSC(LP)-300 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Quatech QSC(LP)-300 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Quatech QSC(LP)-300, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Quatech QSC(LP)-300.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Quatech QSC(LP)-300. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Quatech QSC(LP)-300 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
