Quatech DSCLP-200 Manual de usuario

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

6 Other Operating Systems .......................

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

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 ...........

3 Hardware Installation ...........................

2.4.2 Force High-Speed UART Clock (X2, X4, or X8;

J3, 4, 5) ...............................................

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

1 General Information ..............................

v DSCLP/SSCLP-200/300 User's Manual

10 Troubleshooting ................................

9 Specifications ......................................

8 PCI Resource Map ...............................

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

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.

RS-422 termination

(100 ohms)

(factory default)

Jumpers J6-J9

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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