Quatech QSC-LP-300 User Manual

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.quatech.com

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. 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(LP)-200/300

PRODUCT DESCRIPTION: Four Channel RS-422/485 Asynchronous

PCI Bus Communications Adapter

SERIAL NUMBER:

 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. 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

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(LP)-200/300 (IND)

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1 General Information

1.1 Features

1.1.1 "IND" Option --- Surge Suppression Upgrade

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2 Hardware Configuration

2.1 Signal Connections

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2.1.1 AUX(1,2,3,4) (pins 3 and 4, 7 and 8, 11 and 12, 15 and 16)

2.1.2 TGL(1,2,3,4) (pins 1 and 2, 5 and 6, 9 and 10, 13 and 14)

2.1.3 Force High-Speed UART Clock (X8, pins 17 and 18)

3 Hardware Installation Windows Configuration

4.1 Windows Millennium

4.2 Windows 2000

4.3 Windows 98

4.4 Windows 1995

4.5 Windows NT

4.6 Viewing Resources with Device Manager

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4.6.1 Changing Resource Settings with Device Manager

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5 5 5

6 6 6 6 7

9 10 11 13 14 15 17

5 Other Operating Systems

5.1 Windows NT

5.2 OS/2

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5.3 DOS and other operating systems

5.3.1 QTPCI.EXE

6 External Connections

6.1 DTR/DSR or RTS/CTS Operation

6.2 RTS/cts Handshake

6.3 RCLK

6.4 TCLK

6.5 AUXIN/AUXOUT Loopback

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6.6 Half-Duplex/Full-Duplex/Auto-Toggle Selection Termination Resistors

6.8 RS-422/485 Peripheral Connection

6.9 RS-422/485 Peripheral Connection

7 PCI Resource Map

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21 21 21 21 22

24 24 24 24 24 25 25 26 27 28

Base Address and Interrupt Level (IRQ)

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8 Specifications

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9 Troubleshooting

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Quatech QSC(LP)-200/300 User's Manual 4

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. 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(LP)-200/300 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(LP)-200/300's serial ports use 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 16-byte FIFO and can transmit and receive data at a rate of up to 921,600 bits per second. The 16750 is recommended for heavy multitasking environments and for applications involving high data rates.

The QSC(LP)-200/300 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.

1.1 Features

The standard QSC(LP)-200/300 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, Quatech offers the following board upgrades:

1.1.1 "IND" Option --- Surge Suppression Upgrade

The "IND" option provides the protection essential for reliable use in an industrial environment. Each communication line has a surge suppressor capable of sustaining up to 40A 20us peak transient surges, a clamping voltage of 30V and a peak energy dissipation of 0.1 Joules.

IND OptionPart Number

noQSC(LP)-200/300

yesQSC(LP)-200/300IND

Figure 1 --- QSC(LP)-200/300 Product Series Summary

Quatech QSC(LP)-200/300 User's Manual 5

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 features. These jumpers, located in a row along the top of the board , control how signals are routed from the UARTs to the connector, as well as special options.

Any changes from the factory default should be made before installing the QSC(LP)-200/300 in the computer. These settings can also be changed in Device Manager under Windows operating systems.

2.1 Signal Connections

The QSC(LP)-200/300 provides each of four serial ports with four differential signal pairs: TxD, RxD, AUXOUT, and AUXIN. TxD and RxD are always present at the connector. The AUXOUT and AUXIN signals can be used to support RTS/CTS handshaking, external clocking, or external signal loopback. The factory default configuration, as shown in Figure 2 with no jumpers across any of the pins, is a loopback of AUXOUT to AUXIN at the connector, with RTS and CTS looped back on the board. There is an extensive discussion of this topic in section 6.

jumper settings that control various hardware

Jumper J1 defines the options for this card:

TGL1

AUX1

TGL2

AUX2

TGL3

AUX3

TGL4

AUX4

51719

Figure 2 - Top Card Edge Jumpers

2.1.1 AUX(1,2,3,4) (pins 3 and 4, 7 and 8, 11 and 12, 15 and 16)

The 1, 2, 3, or 4 will designate which port the settings will be applied to. With NO jumpers across the “AUX” pins, CTS = RTS and AUXIN = AUXOUT. With a jumper on any of the “AUX” pins, CTS = AUXIN and AUXOUT = RTS for the given port.

2.1.2 TGL(1,2,3,4) (pins 1 and 2, 5 and 6, 9 and 10, 13 and 14)

The 1, 2, 3, or 4 will designate which port the settings will be applied to. With NO jumpers across the “TGL” pins, TXEN = 1. With a jumper on any of the “TGL” pins, TXEN will be set to “Auto-Toggle” for the given port.

Quatech QSC(LP)-200/300 User's Manual 6

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. It is also useful if the serial port device driver does not directly support setting the higher baud rates through the Options Register.

If this jumper is applied, it overrides any value written to the Options Register to set the clock multiplier by software. The effective baud rate will be eight times the value for which the UART itself is programmed. If selected, the clock multiplier will be applied to all ports on the card, it is not possible to selectively apply the clock multiplier to a specific port.

The factory default is no jumper 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.

Quatech QSC(LP)-200/300 User's Manual 7

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. Install the QSC(LP)-200/300 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(LP)-200/300 is a 44-pin custom connector,

which is brought out to four 9-pin D-connectors via a custom cable.

Figure 3 --- Jumper/connector locations

Quatech QSC(LP)-200/300 User's Manual 8

4 Windows Configuration

4.1 Windows Millennium

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. Click the "Next" button.

2. Window will locate the proper INF file and copy the file from the CD. Click the "Next" button.

3. The final dialog screen will verify the file copy from the CD. Click the "Finish" button.

Quatech QSC(LP)-200/300 User's Manual 9

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