Quatech DS-100 User Manual

DS-100

Two Channel RS-232 Asynchronous

Serial 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 DS-100 to be free of defects for
one (

5) years from the date of purchase. Quatech Inc. will repair or replace any adapter 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.

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

Quatech Inc. reserves the right to edit or append to this document or the product(s) to which it 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: DS-100

Product Description: Two Channel RS-232 Asynchronous Serial Adapter

Serial Number:

i Quatech Inc.

© 2001, 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: * EN50082-1

EN61000-4-2, EN61000-4-3, EN61000-4-4 * CISPR 22 (EN55022)

Type of Equipment: Information Technology Equipment

Equipment Class: Commercial, Residential, & Light

Industrial

Product Name: ISA Communications Card

Model Number : DS-100

iii Quatech Inc.

Table of Contents

1. General Information

2. Installation

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3. Windows 2000 Configuration

4. Windows 95 Configuration

5. Addressing Ports

6. Interrupt Level (IRQ)

7. External Connections

8. Specifications

9. Troubleshooting

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1-1
2-1
3-1

3-13.1 Using the Add New Hardware Wizard ....................................

3-16

3-164.1 Using the Add New Hardware Wizard ...................................

3-184.2 Viewing and Changing Resources with Device Manager .....................

4-1

4-15.1 Setting the address ...................................................

4-35.2 Enabling or disabling ports ............................................

5-1

5-26.1 Interrupt Sharing ....................................................

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6-4
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1. General Information

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

The DS-100's serial ports are implemented using 16550 Universal Asynchronous
Receiver/Transmitters (UARTs). The 16550 UARTs enable the DS-100 to transmit and receive
data at a rate of up to 115.2 kbaud. The 16550 contains a 16-byte hardware buffer that reduces
processing overhead. To use the 16550’s buffering capabilities, the software must be aware of
the UART's presence. Otherwise, it will act as a 16450 UART.

The DS-100 is highly flexible with respect to addressing and interrupt level use. The serial ports
are individually addressed and can be placed anywhere within the range of 0000 hex to FFF8 hex
at 0008 hex intervals. Available interrupt levels include IRQ2 to IRQ7, IRQ10 to IRQ12,
IRQ14, or IRQ15.

Both ports on the DS-100 can share one interrupt level or an interrupt level can be shared with
another Quatech adapter that supports interrupt sharing. 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 DS-100, Quatech has developed
device drivers for several popular operating systems and environments. The sales department
can be contacted for details on current offerings.

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2. Installation

If the default address and interrupt settings are sufficient, the DS-100 can be quickly installed and
put to use. The factory defaults are listed in Figure 1.

ENABLEDIRQADDRESSPORT

YES43F8 hexSerial 0

YES32F8 hexSerial 1

Figure 1 --- Default address and IRQ settings for DS-100

The output of the DS-100 is two 9-pin D-connectors labeled CN1 (serial 0) and CN2 (serial 1).

1. If the default settings are correct, skip to step 2, otherwise refer to sections 4 and 5 of this
document for detailed information on how to set the address and IRQ level.

2. Turn off the power of the computer system in which the DS-100 is to be installed.

3. Remove the system cover according to the instructions provided by the computer
manufacturer.

4. Install the DS-100 in any vacant 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.

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Serial 0

Serial 1

CN1

J5

16750

UART

(Diagram not to scale)

OSC

14.7456

SW2

Serial 0

SW1

DS-100 REV I

QUATECH INC

Serial 0

RN2

RN1

SW4

SW3

J6

UART

16750

Serial 1

Serial 1

RN4

CN2

Serial 0

J3

RN3

Serial 1

J2

J4

IRQ15
IRQ14
IRQ12
IRQ11
IRQ10
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
IRQ2

Figure 2 --- Diagram of DS-100

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3. Windows 2000 Configuration

Windows 2000 maintains a registry of all known hardware installed in the computer. Inside the
hardware registry Windows 2000 keeps track of all of the system resources, such as I/O
locations, IRQ levels, and DMA channels. The “Add New Hardware Wizard” utility in
Windows is designed to add new hardware and update this registry.

Windows 2000 will not
configure Windows 2000 to match the resources set on the card.

automatically configure the DS-100. The user is required to manually

3.1 Using the Add New Hardware Wizard

The following instructions provide a step-by-step instructions on installing the DS-100 Enhanced
Serial Adapter in Windows 2000 using the “Add New Hardware” wizard.

1. Select Start>Settings>Controll Panel.

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2. Double click on the “Add New Hardware” icon.

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3. The next window will be the “Welcome to the Hardware Wizard”, click “Next”.

4. Next choose the “Add/Troublshoot a device” radio button, click “Next”.

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