Manuale d’uso / di manutenzione del prodotto RS-232 del fabbricante Quatech
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ESC(LP)-100 Eight Channel Low Profile RS-232 Asynchronous Communications Adapte r 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 ESC(LP)-100 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.
© 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.
Table of Contents 30 10 Troubleshooting .............................. . 29 9 Specifications ................................... . 28 8 PCI Resource Map ............................. . 26 7 External Connections ......................... . 24 6.3.1 QTPCI.
vi ESC(LP)-100 User's Manual.
1 General Information The Quatech, Inc. ESC(LP)-100 provides eight RS-232 asynchronous serial communication interfaces for Low Profile I BM-compatible personal computer systems using the PCI expansion bus . The ESC(LP)-100 uses Quatech's new Enhanced Serial Adapter design.
2 Hardware Configuration The ESC(LP)-100 is automatically configured at boot time by the computer's BIOS or operating system. There are no switches or jumpers to set for installation. See Section 5.5 for instructions on how to use Windows Device Manager to view and change resource settings.
3 Hardware Installation 1 . Turn off the power of the computer system in which the ESC(LP)-100 is to be installed. 2 . Remove the system cover according to the instructions provided by the computer manufacturer. 3 . Install the ESC(LP)-100 in any empty PCI expansion slot.
4 Address Map and Special Registers This chapter explains how the eight UARTs and special registers are addressed, as well as the layout of those registers. This material will be of interest to programmers writing driver software for the ESC(LP)-100. 4 .
4 . 2 Enabling the Special Registers The ESC(LP)-100 contains two unique registers, an Interrupt Status Register and an Options Register. They replace the UART Scratchpad Register on accesses to register address 7. The Interrupt Status Register and Options Register are accessed through the scratchpad location of any UART.
4 . 4 Options Register The Options Register allows software to identify the ESC(LP)-100 as a Quatech Enhanced Serial Adapter. It also allows software to set the UART clock rate multiplier. Figure 5 shows the structure of the Options Register. The powerup default of the Options Register is all bits zero.
4 . 4 . 2 Clock Rate Multiplier A standard RS-232 serial port operates at a clock speed of 1.8432 MHz. In order to achieve higher data rates, Quatech Enhanced Serial Adapters can operate at two times, four times or even eight times this standard clock speed.
5 Windows Configuration s 5 . 1 Windows Mille nnium 1. After inserting the E SC(LP) - 100 for the first time the "Add New Hardware Wizard" will begin. 2. Select "Search for the best driver for your device.". Check the "Removable media" and "Specify location" box.
5 . 2 Windows 2000 1 . After inserting a ESC(LP)-100 for the first time, the "Add New Hardware Wizard will appear at start up. C lick the "OK" button. 2. The “Files Needed ” dialog box will be displayed. I nsert the Quatech COM CD (shipped with the device).
5 . 3 Windows 98 1 . After inserting a ESC(LP)-100 for the first time, the "Add New Hardware Wizard will appear at start up. C l ick the "Next" button. 2 . Select "Search for the best driver for you r device". Click the "Next" button.
4. The following dialog box will display the appropriate INF file on the diskette in the drive. Click the "Next" button. 5. Window will copy the INF file from the diskette and display a final dialo g indic ation that the process is complete.
5 . 4 Windows 95 Windows 95 maintains a registry of all known hardware installed in your computer. Inside this hardware registry Windows 95 keeps track of all of yo ur system resources, such as I/O locations, IRQ levels, and DMA channels.
7 . You should now see the "Copying Files" dialog box as Windows 95 copies the driver files from the diskette. 8 . The installation u tility will ask for your Windows 95 installation disks. Serial communication ports require two drivers supplied by Microsoft to function: SERIAL.
5 . 1 Viewing Resources with Device Manager This discussion applies equally to Windows 95/98/ME and 2000/XP. The following instructions provide step-by-step instructions on viewing resources used by the ESC(LP)-100 in Windows using the "Device Manager" utility.
Figure 8 --- Windows Device Manager 6 . The ESC(LP)-100 serial ports are also listed under the group Ports ( COM and LPT). Windows 95 does not assign COM1 - COM4 to ports addressed at nonstandard locations. The ESC(LP)-100 ports will be enumerated starting with COM5 (or higher) even if lower logical numbers are available.
Figure 9 --- Device Manager Advanced Port Settings 9 . Use the Logical COM Port n ames to access the serial ports on your ESC(LP)-100 through your software applications. Note: The Logical COM Port name is assigned to your ports by Windows . This name is required by a Windows application when accessing a particular p ort.
5 . 1 . 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 ESC(LP)-100 “parent device ” belongs to this hardware class.
4 . Open the Properties dialog for the ESC(LP)-100 device, then click the Resources tab to view the Input/Output Range and Interrupt Request resource allocations. Do not change these settings without specific instructions from a Quatech Technical Support Specialist.
ESC(LP)-100 User's Manual 19.
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.
7 . Open the Properties dialog for a COM port , then click the Port Properties tab to view the settings for that port. 8 . Click the "Port Settings" tab and then click the "Advanced" button.
ESC(LP)-100 User's Manual 22.
6 Other Operating Systems Device drivers for Windows NT and OS/2 are also available for the ESC(LP)-100. The board can be used under DOS and other operating systems as well in many circumstances. The software described below can be downloaded from the Quatech web site if it did not come with the board.
necessary configuration information. The PCI BIOS specification can be obtained from the PCI Special Interest Group. Contact Quatech technical support for more information.
6 . 3 . 1 QTPCI.EXE Quatech's "QTPCI" utility supplies the information required when modifying the serial port settings of the applicatio n. This program should be run from real DOS , not in a Windows DOS box. Figure 1 1 shows the Basic Mode display for the ESC(LP)-100 after the "Q" key has been pressed.
Figure 1 2 shows the Expert Mode display for the ESC(LP)-100 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.
7 External Connections RS-232-C devices are classified by their function as either Data Terminal Equipment (DTE) or Data Communication Equipment (DCE).
The ESC(LP)-100 is a DTE device which connects to peripheral equipment through a n adapter cable ’ s eight male D- 9 connectors. The standard serial port connections are listed in Figure 1 5 .
8 PCI Resource Map Listed below are the PCI resources used by the ESC(LP)-100. Such information may be of use to customers writing their own device drivers or other custom software. A detailed description of the ESC(LP)-100's UARTs is available on the Quatech web site.
9 Specifications Bus interface: PCI, 32 -bit bus , Universal Voltage Signaling IBM - compatible computers Dimensions: approx . 5.0" x 2.5 " Serial ports Controller: 16750-compatible with 64 .
4800 4300 3300 1570 800 115.2 2000 1630 1100 900 330 230.4 1100 900 670 430 100 460.8 470 430 300 100 N/A 921.6 25% trans time 20% trans time 15% trans time 10% trans time 4% trans time Maximum Load (.
10 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 ES C (LP)-100's warranty.
ESC(LP)-100 User's Manual Revision 1. 12 Decem ber 2006 P/N: 940-3105-1 12 ESC(LP)-100 User's Manual 33.
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 RS-232 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 RS-232 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Quatech RS-232 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Quatech RS-232 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Quatech RS-232, 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 RS-232.
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 RS-232. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Quatech RS-232 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.
