Quatech QS-100D User Manual

QS-100D

Four Channel RS-232 Asynchronous

Communications Adapter

for ISA compatible machines

INTERFACE CARDS FOR IBM PC/AT AND PS/2

User's Manual

QUATECH, INC. TEL: [phone]
5675 Hudson Industrial Parkway FAX: [phone]
Hudson, Ohio 44236 http://www.quatech.com

Warranty Information

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

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.

program(s). 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 herein and in the program(s)
accompanying this document. No representation is made regarding the suitability of this product for any
particular purpose.

refers at any time and without notice.

Please complete the following information and retain for your records. Have this information available when
requesting warranty service.

Date of purchase:

Model Number: QS-100D

from the date of purchase. Quatech Inc. will repair or replace any adapter that fails to

The authors have taken due care in the preparation of this document and any associated software

Quatech Inc. reserves the right to edit or append to this document or the product(s) to which it

Product Description: Four Channel Asynchronous RS-232 Communications ISA

Adapter

Serial Number:

QS-100D User's Manual i

© 1993, 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.

IBM PCTM, PC-ATTM, PS/2™, and Micro Channel™ are trademarks of International Business
Machines Corporation.

ii 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

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: ISA Communications Card

Model Number : QS-100D/S/750/IND

QS-100D User's Manual iii

Table of Contents

1. General Information

2. Hardware Installation

3. Windows 95 Configuration

3.1 Using the Add New Hardware

Wizard ....................................................

3.2 Viewing and Changing

Resources with Device Manager ................................

4. External Connections

5. Specifications

............................................

6. Troubleshooting

.....................................

....................................

...............................

....................................

.........................................

1-1

1-11.1 Explanation of Packages ...................................

2-1

2-22.1 Setting the Base Address ...................................

2-42.2 Setting the Interrupt Level (IRQ) .............................

2-42.3 Configuring Interrupt Sharing ...............................

2-52.4 Interrupt Status Register ....................................

3-1

3-1

3-3
4-1
5-1
6-1

iv Quatech Inc.

1. General Information

The Quatech, Inc. QS-100D provides four RS-232 asynchronous serial
communication interfaces for IBM-compatible personal computer systems using
the 16-bit ISA (Industry Standard Architecture) expansion bus.

The QS-100D is highly flexible with respect to addressing and interrupt level use.
The serial ports are addressed in a contiguous block that can be placed anywhere
within the range of 0000 hex to FFFF hex, and available interrupt levels include
IRQ2 to IRQ7, IRQ10 to IRQ12, IRQ14, or IRQ15. (Early versions of the
QS-100D are limited to IRQ2-7.)

All four ports on the QS-100D can share one interrupt level. A special interrupt
status register is provided to allow controlling software to manage the shared
interrupt level. The shared interrupt feature minimizes the system resources
consumed by the adapter.

In order to support the use of the shared interrupt feature of the QS-100D,
Quatech has developed device drivers for several popular operating systems and
environments. The sales department can be contacted for details on current
offerings.

Note: References to the QS-100D throughout this manual apply to the following
products.

UART UPGRADEIND PACKAGEPRODUCT

nonoQS-100DS

noyesQS-100IND
yesnoQS-100D750
yesyesQS-100IND750

Figure 1 --- QS-100D Product Series Summary

1.1 Explanation of Packages

The base four port RS-232 asynchronous communications adapter is the
QS-100DS. This product inplements each of its four communication channels
with a 16550 UART. Signal Transmission and Reception is accomplished using
standard line driver and receiver components.
For improved performance and reliability, Quatech offers the following board
upgrades:

QS-100D User's Manual 1-1

1.1.1 IND Package

The IND upgrade on the QS-100IND and QS-100IND750 boards provides the
protection essential for reliable use in an industrial environment. Special line
drivers and receivers are used which have 15kV ESD (Electro Static Discharge)
protection, and each communication line has a surge suppressor capable of
sustaining up to 40A transient surges (at 14V).

1.1.2 UART Upgrade

The UART upgrade on the QS-100D750 and QS-100IND750 boards provides a
16750 UART in place of the 16550 UART found on the standard QS-100D. The
UART (Universal Asynchronous Transmiter and Receiver) takes byte size data
from the bus side of board and breaks it into the bit size data required for serial
communication. Benefits of the 16750 UART include extended 64 byte FIFOs on
transmit and receive and the ability to sustain transfer rates as high as 1Mbaud (
acheiving this rate is dependent upon the user’s system and the board’s oscillator
frequency). The increased FIFO size allows the 16750 UART to store larger
amounts data; which means that each read or write access to the UART can move
more data per operation, resulting in less processor time being spent servicing the
UART.

The Quatech serial device driver for Windows 95, which is included with the
QS-100D, provides support for the UART’s 16750 mode. Other applications
and/or operating systems may not support a UART operating in 16750 mode, in
which case the default operation will be 16550 compatible mode.

1-2 Quatech Inc.

Figure 2 --- Diagram of QS-100D

QS-100D User's Manual 1-3