Quatech QSC-100 User Manual
QSC-100
Two Channel RS-232 Asynchronous
`
Communications Adapter
for PCI bus
User's Manual
QUATECH, INC. TEL: (330) 434-3154
662 Wolf Ledges Parkway FAX: (330) 434-1409
Akron, Ohio 44311 http://www.quatech.com
WARRANTY INFORMATION
Quatech, Inc. warrants the QSC-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. 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:
(c) 1998 -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: 662 Wolf Ledges Parkway
Akron, Ohio 44311 (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
41 General Information .................................................
51.1 Features .............................................................
51.1.1 "IND" Option --- Surge Suppression Upgrade ...........................
62 Hardware Configuration ............................................
62.1 Factory Default Configuration ..........................................
62.2 Enable Scratchpad Register (SPAD, J6) ...................................
72.3 Force High-Speed UART Clock (X2, X4, or X8, J3-J5) .......................
83 Hardware Installation ...............................................
94 Address Map and Special Registers ................................
94.1 Base Address and Interrupt Level (IRQ) .................................
104.2 Enabling the Special Registers .........................................
104.3 Interrupt Status Register ..............................................
114.4 Options Register ....................................................
114.4.1 Enhanced Serial Adapter Identification ...............................
124.4.2 Clock Rate Multiplier ...............................................
135 Windows Configuration ............................................
135.1 Windows Millennium ................................................
145.2 Windows 2000 ......................................................
155.3 Windows 1998 ......................................................
165.4 Windows 1995 ......................................................
185.5 Viewing Resources with Device Manager ...............................
195.6 Windows NT ........................................................
206 DOS and Other Operating Systems ...............................
206.1.1 QTPCI.EXE .......................................................
237 OS/2 .................................................................
248 External Connections ...............................................
269 PCI Resource Map ..................................................
2710 Specifications ......................................................
2911 Troubleshooting ....................................................
1 General Information
Quatech QSC-100 User's Manual
4
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.
1.1 Features
no
QSC-100
Quatech QSC-100 User's Manual
5
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.
IND OptionPart Number
yesQSC-100IND
Figure 1 --- QSC-100 Product Series Summary
2 Hardware Configuration
Quatech QSC-100 User's Manual
6
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 the QSC-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.
J3
J4
J5
J6
X2
X4
X8
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.
J3
J4
X2
X4
J5
J6
X8
SPAD
Figure 3 --- Enable scratchpad registers
2.3 Force High-Speed UART Clock (X2, X4, or X8, J3-J5)
software control
Quatech QSC-100 User's Manual
7
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.
J3
J4
J5
J6
Factory default
J3
J4
J5
J6
Force times-four clock
Baud rates up to 460.8 kbps
X2
X4
X8
SPAD
X2
X4
X8
SPAD
Figure 4 --- Clock multiplier jumper options
J3
J4
J5
J6
Force times-two clock
Baud rates up to 230.4 kbps
J3
J4
J5
J6
Force times-eight clock
Baud rates up to 921.6 kbps
X2
X4
X8
SPAD
X2
X4
X8
SPAD
3 Hardware Installation
Quatech QSC-100 User's Manual
8
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).
Clock multiplier/
scratchpad select
J3
J4
J5
J6
X2
X4
X8
SPAD
Figure 5 --- Jumper/connector locations
Loading...