Quatech DSCLP-200 Bedienungsanleitung
DSCLP/SSCLP-200/300
Two and One Channel RS-422/485
Low Profile 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 DSCLP-200/300 or SSCLP-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: DSCLP-200/300 or SSCLP-200/300
PRODUCT DESCRIPTION: DSCLP: Two Channel RS-422/485 Asynchronous
PCI Bus Communications Adapter
SSCLP: One Channel RS-422/485 Asynchronous
PCI Bus Communications Adapter
SERIAL NUMBER:
DSCLP/SSCLP-200/300 User's Manual ii
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 andQuatech, 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 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.
DSCLP/SSCLP-200/300 User's Manual iii
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 Two Port or One Port Serial
Communications Card
Model Number : DSCLP-200/300 / SSCLP-200/300
DSCLP/SSCLP-200/300 User's Manual iv
Table of Contents
35
6 Other Operating Systems .......................
30
5.6.1 Changing Resource Settings with Device Manager .27
5.6 Viewing Resources with Device Manager ............ 26
5.5 Windows NT ....................................... 25
5.4 Windows 95 ........................................ 23
5.3 Windows 98 ........................................ 22
5.2 Windows 2000 ...................................... 21
5.1 Windows Millennium ............................... 21
5 Windows Configurations ........................
20
4.5.2 Clock Rate Multiplier ............................ 19
4.5.1 Enhanced Serial Adapter Identification ........... 19
4.5 Options Register .................................... 18
4.4 Quatech Modem Control Register ................... 17
4.3 Interrupt Status Register ............................ 17
4.2 Enabling the Special Registers ...................... 16
4.1 Base Address and Interrupt Level (IRQ) ............. 16
4 Address Map and Special Registers ...........
15
3 Hardware Installation ...........................
13
2.4.2 Force High-Speed UART Clock (X2, X4, or X8;
J3, 4, 5) ...............................................
13
2.4.1 Enable Scratchpad Register (SPAD, J2) .......... 13
2.4 Clock Rate and Optional Registers .................. 12
2.3.5 RXEN0_SEL, RXEN1_SEL (J16, 23) ............ 12
2.3.4 TGL0_SEL1,0, TGL1_SEL1,0 (J15, 14, 22, 21) .... 12
2.3.3 RCLK0_SEL, RCLK1_SEL (J13, 20) ............ 12
2.3.2 AUX0_SEL1,0, AUX1_SEL1,0 (J12, 11, 19, 18) ... 12
2.3.1 CTS0_SEL, CTS1_SEL (J10, 17) ................. 10
2.3 Full-duplex/Half-duplex Operation .................. 10
2.2 Signal Connections ................................. 9
2.1 RS-422 or RS-485 Signal Line Termination ........... 9
2 Hardware Configuration .........................
8
1 General Information ..............................
v DSCLP/SSCLP-200/300 User's Manual
47
10 Troubleshooting ................................
46
9 Specifications ......................................
45
8 PCI Resource Map ...............................
44
7.7 RS-422/485 Peripheral Connection .................. 43
7.6 Termination Resistors .............................. 41
7.5 Half-Duplex/Full-Duplex/Auto-Toggle Selection ..... 40
7.4 AUXIN/AUXOUT Loopback ........................ 40
7.3 TCLK .............................................. 39
7.2 RCLK .............................................. 39
7.1 RTS/cts Handshake ................................. 38
7 External Connections ............................
36
6.2.1 QTPCI.EXE ..................................... 35
6.2 DOS and other operating systems ................... 35
6.1 OS/2 ...............................................
vi DSCLP/SSCLP-200/300 User's Manual
DSCLP/SSCLP-200/300 User's Manual 7
1 General Information
The Quatech, Inc. DSCLP-200/300 (two-port) and SSCLP-200/300
(one-port) provide RS-422 or RS-485 asynchronous serial communication
interfaces for IBM-compatible personal computer systems using thePCI
expansion bus. For general purposes, this manual usually makes reference only to
the DSCLP-200/300. All information pertains equally to the SSCLP-200/300,
with the exception that with the SSCLP there is just one port instead of two. The
DSCLP-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 as921,600 bits
per second.
As a PCI device, the DSCLP-200/300 requires no hardware configuration.
The card is automatically configured by the computer's BIOS or operating system.
The two serial ports share a single interrupt line and are addressed in a contiguous
block of 16 bytes. A special interrupt status register is provided to help software
to manage the shared interrupt.
The DSCLP-200/300's serial ports are implemented using 16550
Universal Asynchronous Receiver/Transmitters (UARTs). These UARTs contain
hardware buffers (FIFOs) which reduce processing overhead and allow higher
data rates to be achieved. The 16550 contains a 16-byte FIFO and can transmit
and receive data at a rate of up to 921,000 bits per second.
The DSCLP-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.
DSCLP/SSCLP-200/300 User's Manual 8
2 Hardware Configuration
The DSCLP-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 jumper settings that control various
hardware features. Jumpers J1-J4, located in a column near the D-type connector
(D-25 for DSCLP, D-9 for SSCLP), control the RS-422 or RS-485 signal line
termination. Jumpers J5-J8, located in a column just to the right of J1-J4, control
how signals are routed from the UARTs to the connector, as well as full- or half-
duplex operation. Jumpers J10-J22, grouped together at the end of the board
opposite the D-type connector (D-25 for DSCLP, D-9 for SSCLP), control special
options.
Any changes from the factory default should be made before installing the
DSCLP-200/300 in the computer. These settings can also be changed in Device
Manager under Windows operating systems.
2.1 RS-422 or RS-485 Signal Line Termination
Jumpers J6-J9 allow the selection of 100-ohm RS-422 termination,
120-ohm RS-485 termination, or no termination at all. The factory default, shown
in Figure 1, is RS-422 termination. For full details, see section 7.6.
13
RS-422 termination
(100 ohms)
(factory default)
Jumpers J6-J9
4
2
Figure 1 --- Factory default signal termination settings
DSCLP/SSCLP-200/300 User's Manual 9
2.2 Signal Connections
The DSCLP-200/300 provides each of two 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 inFigure 2, 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 7.
2.3 Full-duplex/Half-duplex Operation
The DTR or RTS modem control output of the UART can be used to
enable and disable the transmit drivers. The inverse of these signals can also be
used to enable and disable the receivers. These options are selectable per channel.
The factory default, as shown in Figure 2, is for both the drivers and receivers of
both channels to be continuously enabled. Two spare jumpers are installed in
neutral positions. For details, refer to section 7.5.
The DSCLP-200/300 is shipped from the factory with each channel
configured with No jumpers on J10-23. The following conditions occur:
CTS=AUXIN, AUXOUT=RTS, RCLK=TCLK, TXEN=1 AND RXEN=1.
DSCLP/SSCLP-200/300 User's Manual 10
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3
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