Quatech QSC-100 Manuale utente

QSC-100

Two Channel RS-232 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.quatech.com

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WARRANTY INFORMATION

Quatech, Inc. warrants the QSC-100 to be free of defects for one (1) year 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.

Please complete the following information and retain for your records. Have this

information available when requesting warranty service.

DATE OF PURCHASE:

MODEL NUMBER: QSC-100

PRODUCT DESCRIPTION: Four Channel RS-232 Asynchronous

PCI Bus Communications Adapter

SERIAL NUMBER:

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Ó1998 -2000, 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. Quatech, Inc. reserves the right to change this documentation or the product to

which it refers at any time and without notice.

The authors have taken due care in the preparation of this document and every attempt

has been made to ensure its accuracy and completeness. In no event will Quatech, Inc. be liable

for damages of any kind, incidental or consequential, in regard to or arising out of the

performance or form of the materials presented in this document or any software programs that

might accompany this document.

Quatech, Inc. encourages feedback about this document. Please send any written

comments to the Technical Support department at the address listed on the cover page of this

document.

DOS, Windows ME, Windows 2000, Windows 98, Windows 95, Windows NT are trademarks or registered

trademarks of Microsoft Corporation. OS/2 is a registered trademark of IBM Corporation. All other trademarks or

registered trademarks are property of their respective owners.

Declaration of Conformity

Manufacturer's Name: Quatech Inc.

Manufacturer's Address: 5675 Hudson Industrial Parkway

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Hudson, Ohio 44236 (USA)

Application of Council Directive: 89/336/EEC

Standards to which

Conformity is Declared: * EN50081-1 (EN55022,

EN60555-2, EN60555-3)

* EN50082-1 (IEC 801-2,

IEC 801-3, & IEC 801-4)

Type of Equipment: Information Technology

Equipment

Equipment Class: Commercial, Residential, & Light

Industrial

Product Name: PCI Quad Serial Communications Card

Model Number : QSC-100/IND

94.1 Base Address and Interrupt Level (IRQ) ....................................

4 Address Map and Special Registers .....................................

3 Hardware Installation ..................................................

72.3 Force High-Speed UART Clock (X2, X4, or X8, J3-J5) ........................

62.2 Enable Scratchpad Register (SPAD, J6) ....................................

62.1 Factory Default Configuration ............................................

2 Hardware Configuration ...............................................

51.1.1 "IND" Option --- Surge Suppression Upgrade ..............................

51.1 Features .............................................................

1 General Information ...................................................

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11 Troubleshooting .....................................................

10 Specifications .......................................................

9 PCI Resource Map ....................................................

8 External Connections .................................................

7 OS/2 ..................................................................

206.1.1 QTPCI.EXE .......................................................

6 DOS and Other Operating Systems ....................................

195.6 Windows NT ........................................................

185.5 Viewing Resources with Device Manager ..................................

165.4 Windows 1995 .......................................................

155.3 Windows 1998 .......................................................

145.2 Windows 2000 .......................................................

135.1 Windows Millennium .................................................

5 Windows Configuration ...............................................

124.4.2 Clock Rate Multiplier ................................................

114.4.1 Enhanced Serial Adapter Identification ..................................

114.4 Options Register .....................................................

104.3 Interrupt Status Register ................................................

104.2 Enabling the Special Registers ...........................................

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1 General Information

The Quatech, Inc. QSC-100 provides four RS-232 asynchronous serial communication

interfaces for IBM-compatible personal computer systems using the PCI expansion bus. The

QSC-100 uses Quatech's new Enhanced Serial Adapter design. Legacy serial port data rates are

limited to a maximum of 115,200 bits per second. Quatech Enhanced Serial Adapters can

achieve data rates as high as 921,600 bits per second.

As a PCI device, the QSC-100 requires no hardware configuration. The card is

automatically configured by the computer's BIOS or operating system. The four serial ports

share a single interrupt line and are addressed in a contiguous block of 32 bytes. A special

interrupt status register is provided to help software to manage the shared interrupt.

The QSC-100's serial ports are using 16750 Universal Asynchronous

Receiver/Transmitters (UARTs). These UARTs contain hardware buffers (FIFOs) which reduce

processing overhead and allow higher data rates to be achieved. The 16750 contains a 64-byte

FIFO and can transmit and receive data at a rate of up to 921,600 bits per second and is

recommended for heavy multitasking environments and for applications involving high data

rates. The larger FIFO allows each read or write access to the UART to move more data,

resulting in fewer interrupts and less processor time spent servicing the UART.

The QSC-100 is supported under several popular operating systems and environments.

Contact the sales department for details on current software offerings. Most device drivers are

available for download from the Quatech world wide web site at http://www.quatech.com.

Quatech serial device drivers for Windows 95, Windows NT, 98, 2000, Millennium and OS/2

provide support for the UART's 16750 mode.

Quatech QSC-100 User's Manual 4

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1.1 Features

The standard QSC-100 implements each of its communication channels with a 16750

UART and uses standard line driver and receiver components. For improved performance and

industrial-grade reliability.

1.1.1 "IND" Option --- Surge Suppression Upgrade

The "IND" upgrade provides the protection essential for reliable use in an industrial

environment. Each communication line has a surge suppresser capable of sustaining up to 40A

20us peak transient surges, a clamping voltage of 30V and a peak energy dissipation of 0.1

Joules.

yesQSC-100IND

noQSC-100

IND OptionPart Number

Figure 1 --- QSC-100 Product Series Summary

Quatech QSC-100 User's Manual 5

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2 Hardware Configuration

The QSC-100 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. Jumpers J3-J6 are grouped together at the end of the board opposite the D-37

connector. Any changes from the factory default should be made before installing theQSC-100

in the computer.

2.1 Factory Default Configuration

Figure 2 shows the jumper configuration as shipped from the factory, with two spare

jumpers applied in neutral positions. Remove one or both and apply as shown in following

sections to set optional features.

SPAD

Figure 2 --- Factory default jumper configuration

2.2 Enable Scratchpad Register (SPAD, J6)

In the default configuration, an Interrupt Status Register and an Options Register (see

page 0) replace the scratchpad (base address + 7) of each UART. If the SPAD jumper is applied

as in Figure 3, the UART scratchpad registers are enabled, and the Interrupt Status Register and

the Options Register are not available.

SPAD

Figure 3 --- Enable scratchpad registers

Quatech QSC-100 User's Manual 6

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2.3 Force High-Speed UART Clock (X2, X4, or X8, J3-J5)

These jumpers force an increase of the UART input clock frequency by a factor of two,

four, or eight. This feature can allow legacy software to use baud rates above 115,200 bits per

second. It is also useful if the serial port device driver does not directly support setting the higher

baud rates through the Options Register.

If one of these jumpers is applied, it overrides any value written to the Options Register to

set the clock multiplier by software. The effective baud rate will be either two, four, or eight

times the value for which the UART itself is programmed.

The factory default is none of these jumpers applied, which allows for software control of

the clock multiplier via the Options Register. The Options Register powerup default is for a

standard times-1 clock of 1.8432 MHz for compatibility with standard serial ports.

SPAD

Force times-eight clock

Baud rates up to 921.6 kbps

SPAD

Force times-two clock

Baud rates u

to 230.4 kb

SPAD

Factory default

software control

SPAD

Force times-four clock

Baud rates up to 460.8 kbps

Figure 4 --- Clock multiplier jumper options

Quatech QSC-100 User's Manual 7

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3 Hardware Installation

1. Turn off the power of the computer system in which the QSC-100 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. Install the QSC-100 in any empty PCI expansion slot. The board should be secured by

installing the Option Retaining Bracket (ORB) screw.

5. Replace the system cover according to the instructions provided by the computer

manufacturer.

6. Attach and secure the cable connectors to the desired equipment.

7. Turn on the power of the computer system.

The output of the QSC-100 is a 37-pin D-connector. A cable is provided to convert the

D-37 into four standard male D-25 connectors with all control signals provided to each port

(RTS, DTR, CTS, DSR, DCD, and RI).

SPAD

Clock multiplier/

scratchpad select

Figure 5 --- Jumper/connector locations

Quatech QSC-100 User's Manual 8

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