Quatech RS-422 - Manuals

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Manual

Manual Quatech RS-422

Summary

Page 2 - NOTICE; iv

? 2002 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 thatmight accompany this document can be used only in accordance with any licenseagreement(s) between the purchaser and...

Page 4 - Declaration of Conformity; Application of Council Directive:; Industrial

Declaration of Conformity Manufacturer's Name: Quatech Inc. M anufacturer's Address: 662 Wolf Ledges ParkwayAkron, Ohio 44311 (USA) Application of Council Directive: 89/336/EEC Standards to whichConformity is Declared: * EN50081-1 (EN55022, EN60555-2, EN60555- 3) * EN50082-1 (IEC 801-2, IEC 801-3, &...

Page 5 - Table of Contents; iii

Table of Contents 28 10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 9 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 8 PCI Resource Map . . . . . . . . ...

Page 6 - General Information

1 General Information The Quatech, Inc. DSCLP-200/300(two-port) and SSCLP- 200/300 (one-port) provides upto provides two RS-422 or RS-485 asynchronous serialcommunication interfaces for IBM-compatible personal computer systems using thePCI expansion bus. The DSCLP-200/300 uses Quatech's new Enhanced...

Page 7 - Hardware Configuration; The DSCLP-200/300 is automatically configured at boot time by the

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 toset for installation. This chapter lists a number of jumper settings that control various hardware features. Jumpers J1-J4, loca...

Page 8 - Signal Connections; The DTR or RTS modem control output of the UART can be used to enable; Jumpers J10-J23 define the options for this card:

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 atthe connector. The AUXOUT and AUXIN signals can be used to support RTS/CTShandshaking, external clocking, or external signal l...

Page 9 - Right Card Edge Jumpers

SPAD X4 X2 J2 J4 J5 CTS0_SEL AUX0_SEL0 AUX0_SEL1 J10 J11 J12 RCLK0_SEL TGL0_SEL0 TGL0_SEL1 J13 J14 J15 RXEN0_SEL CTS1_SEL AUX1_SEL0 J16 J17 J18 AUX1_SEL1 RCLK1_SEL TGL1_SEL0 J19 J20 J21 TGL1_SEL1 RXEN1_SEL J22 J23 Right Card Edge Jumpers 2.3.1 CTS0_SEL, CTS1_SEL (J10,17) With NO jumpers on J10 or J1...

Page 10 - Clock Rate and Optional Registers

With NO jumpers on J13 or J20 the mode selection is RCLK=TCLK. With Jumpers installed on J13 or J20 the mode selection is RCLK=AUXIN . 2.3.4 TGL0_SEL1,0, TGL1_SEL1,0 (J15,14,22,21) With NO jumpers on J15,14, or J22,21 the mode selection is TXEN=1. With Jumpers installed on J14 or J21 and NO jumpers ...

Page 11 - factory default

SPAD X4 X2 J2 J4 J5 Figure 4 --- Enable scratchpad registers 2.4.2 Force High-Speed UART Clock (X2 or X4, J4-J5) 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 above115,200 bits per second...

Page 12 - X4 mode; X2 mode

SPAD X4 X2 J2 J4 J5 X4 mode SPAD X4 X2 J2 J4 J5 X2 mode DSCLP-200/300 User's Manual 7

Page 13 - Hardware Installation; computer manufacturer.

3 Hardware Installation 1. Turn off the power of the computer system in which the DSCLP-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 DSCLP-200/300 in any...

Page 14 - Address Map and Special Registers; The base address and IRQ used by the DSCLP-200/300 are determined by; Channel; All two serial ports share the same IRQ. The DSCLP-200/300 signals a

4 Address Map and Special Registers This chapter explains how the two UARTs and special registers are addressed, as well as the layout of those registers. This material will be of interest to programmerswriting driver software for the DSCLP-200/300. 4.1 Base Address and Interrupt Level (IRQ) The bas...

Page 16 - Quatech Modem Control Register; - Bits 2 and 3 are used; Description

4.4 Quatech Modem Control Register The Quatech Modem Control Register can be used to setup each port. To access QMCR write a 0xBF to the LCR(base + 3) and a 0x10 to the OptReg(base+7). This will allow the user read/write access to QMCR. The QMCR of theentire DSCLP-200/300, as shown in Figure 9a. The...

Page 17 - Enhanced Serial Adapter Identification; Read

4.5 Options Register The Options Register allows software to identify the DSCLP-200/300 as a Quatech Enhanced Serial Adapter. It also allows software to set the UART clock ratemultiplier. Figure 10 shows the structure of the Options Register. The powerup default of the Options Register is all bits z...

Page 18 - At powerup and reset, the Options Register is initialized to 0. The

4.5.2 Clock Rate Multiplier A standard serial port operates at a clock speed of 1.8432 MHz. In order to achieve higher data rates, Quatech Enhanced Serial Adapters can operate at two timesor four times this standard clock speed. This is controlled by the clock rate multiplierbits in the Options Regi...

Page 19 - Windows Configurations; Windows Mille nnium

5 Windows Configurations 5.1 Windows Mille nnium 1. After inserting the DSCLP-200/300 for the first time the "Add New HardwareWizard" will begin. Select "Search for the best driver for your device.". Check the"Removable media" and "Specify location" box. Click the ...

Page 21 - Quatech

5.3 Windows 98 1. After inserting a DSCLP-200/300 for the first time, the "Add New HardwareWizard will appear at start up. Click the "Next" button. 2. Select "Search for the best driver for you device". Click the "Next" button. 3. On the next dialog, select the "CD-RO...

Page 22 - configuration in the Windows 95 environment.

4. The following dialog box will display the appropriate INF file on the diskette in drive. Click the "Next" button. 5. Window will copy the INF file from the diskette and display a final dialog indication that the process is complete. Click the "Finish" button.Windows 95 maintains a...

Page 23 - driver files from the diskette.; NOTE; the DSCLP-200/300 as each port is registered with Windows 95.; Viewing Resources with Device Manager

2. Select the radio button for "Driver from disk provided by hardware manufacturer." Click the "OK" button to continue. 3. An "Install From Disk" dialog box should pop up. Insert the diskette with the Quatech INF files on it, select the correct drive letter, and click the ...

Page 24 - attempt to modify the configuration values listed.; without making changes.

utility. Select Start|Help from within Windows 95 for additional information on thisutility. 1. Double click the "System" icon inside the Control Panel folder. This opens up the System Properties box. 2. Click the "Device Manager" tab located along the top of the System Properties bo...

Page 26 - Use the Logical COM Port names to access the serial ports on your

Figure 14 --- Windows 95 Device Manager 9. Use the Logical COM Port names to access the serial ports on your DSCLP-200/300 through your software applications. Note: The LogicalCOM Port name is assigned to your ports by Windows 95. This name isrequired by a Windows 95 application when accessing a par...

Page 27 - Other Operating Systems; Device drivers for Windows NT and OS/2 are also available for the; DOS and other operating systems; For Windows 95, Windows NT and OS/2, the Quatech device drivers

6 Other Operating Systems Device drivers for Windows NT and OS/2 are also available for the DSCLP-200/300. The board can be used under DOS and other operating systems aswell in many circumstances. The software described below can be obtained from theQuatech web site if it did not come with the board...

Page 28 - cannot be used to make changes.

Quatech's "QTPCI" utility supplies the information required when modifying the serial port settings of the application. This program should be run from real DOS, not ina Windows DOS box. Figure 15 shows the Basic Mode display for the DSCLP-200/300 after the "Q" key has been pressed. ...

Page 30 - External Connections; The available input signals for AUXIN are Clear To Send (CTS) and the

7 External Connections The DSCLP-200/300 provides four differential communication signals per channel. The two output signals are Transmit Data (TxD) and Auxiliary Output(AUXOUT). The two input signals are Receive Data (RxD) and Auxiliary Input(AUXIN). A ground signal is also provided. The available...

Page 35 - Termination Resistors

7.6 Termination Resistors Line termination resistors are provided for the input signals of each of the DSCLP-200/300's RS-422/485 ports. Termination may be selected or removed forindividual signal lines using jumper blocks J1-J4. RS-422 Rt = 100 ohm 1/2W RS-485 Rt = 120 ohm 1/2W + - RS-422/485 Recei...

Page 37 - PCI Resource Map

8 PCI Resource Map Listed below are the PCI resources used by the DSCLP-200/300. Such information may be of use to customers writing their own device drivers or other customsoftware. A detailed description of the DSCLP-200/300's UARTs is available on the Quatech web site. (all numbers in hex) PCI Ve...

Page 38 - Specifications; Serial ports

9 Specifications Bus interface: PCI, 32-bit bus, 5-volt onlyIBM-compatible computers Dimensions: approx. 5.5" x 3.5" Serial ports Controller: 16550 with 16-byte FIFOs (16750 with 64-byte FIFOs optional) Interface: Two female D-9 connectors Transceivers: SP491 or compatible Differential outpu...

Page 39 - 0 Troubleshooting; Listed here are some common problems and frequent causes of those; Computer will not boot up.; Perhaps try a different expansion slot.; Cannot communicate with other equipment.

10 Troubleshooting Listed here are some common problems and frequent causes of those problems. If the information here does not provide a solution, contact Quatechtechnical support. Any unauthorized repairs or modifications will void the DSCLP-200/300's warranty. Computer will not boot up. 1. Is the...