DS-100 Two Channel RS-232 Asynchronous Serial Adapter for ISA compatible machines INTERFACE CARDS FOR IBM PC/AT AND PS/2 User's Manual QUATECH, INC. 5675 Hudson Industrial Parkway Hudson, Ohio 44236 TEL: (330) 655-9000 FAX: (330) 655-9010 http://www.quatech.
Warranty Information Quatech Inc. warrants the DS-100 to be free of defects for one (5) years from the date of purchase. Quatech Inc. will repair or replace any adapter 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.
© 2001, 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.
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: EN61000-4-2, EN61000-4-3, EN61000-4-4 * EN50082-1 * CISPR 22 (EN55022) Type of Equipment: Information Technology Equipment Equipment Class: Commercial, Residential, & Light Industrial Product Name: ISA Communications Card Model Number : DS-100 iii Quatech Inc.
Table of Contents 1. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 3. Windows 2000 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.1 Using the Add New Hardware Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 4.
1. General Information The Quatech, Inc. DS-100 provides two RS-232 asynchronous serial communication interfaces for IBM-compatible personal computer systems using the 16-bit ISA (Industry Standard Architecture) expansion bus. The DS-100's serial ports are implemented using 16550 Universal Asynchronous Receiver/Transmitters (UARTs). The 16550 UARTs enable the DS-100 to transmit and receive data at a rate of up to 115.2 kbaud. The 16550 contains a 16-byte hardware buffer that reduces processing overhead.
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2. Installation If the default address and interrupt settings are sufficient, the DS-100 can be quickly installed and put to use. The factory defaults are listed in Figure 1. PORT ADDRESS IRQ ENABLED Serial 0 3F8 hex 4 YES Serial 1 2F8 hex 3 YES Figure 1 --- Default address and IRQ settings for DS-100 The output of the DS-100 is two 9-pin D-connectors labeled CN1 (serial 0) and CN2 (serial 1). 1.
Figure 2 --- Diagram of DS-100 RN3 Serial 1 SW3 RN1 Serial 0 SW1 J2 SW4 Serial 1 RN2 SW2 14.7456 OSC J3 Serial 0 J4 Serial 1 Serial 0 RN4 DS-100 REV I QUATECH INC 16750 UART 16750 UART (Diagram not to scale) IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 2-2 Quatech Inc.
3. Windows 2000 Configuration Windows 2000 maintains a registry of all known hardware installed in the computer. Inside the hardware registry Windows 2000 keeps track of all of the system resources, such as I/O locations, IRQ levels, and DMA channels. The “Add New Hardware Wizard” utility in Windows is designed to add new hardware and update this registry. Windows 2000 will not automatically configure the DS-100. The user is required to manually configure Windows 2000 to match the resources set on the card.
2. Double click on the “Add New Hardware” icon. 3-2 Quatech Inc.
3. The next window will be the “Welcome to the Hardware Wizard”, click “Next”. 4. Next choose the “Add/Troublshoot a device” radio button, click “Next”. 3-3 Quatech Inc.
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7. Next select “Ports (COM & LPT)”, click “Next”. 3-7 Quatech Inc.
8. In the next window under manufacture select “(Standard port types), and under Models select “Communications Port. Because Windows will not detect plug and play you will have to manually enter the settings. Click “OK”. 3-8 Quatech Inc.
9. Next you will have to change the “Input/Output Range” to a setting that is not in use “No conflicts” by choosing a different “Basic Configuration”. . 3-9 Quatech Inc.
10. The “Input Request” (IRQ) must be set to corresponds with the jumpers setting on the DS-100 board. 3-10 Quatech Inc.
Once you have chosen the IRQ that corresponds with the setting on the Quatech DS-100 card the window will display “no conflicts” and the red circle with a slash of the “Input/Output Range” will not be present. 3-11 Quatech Inc.
11. Next Windows will begin the install the hardware, click “Next”. 3-12 Quatech Inc.
12. Next the “Completing the Add/Remove Hardware Wizard” will appear, click “Finish”. 3-13 Quatech Inc.
13. Next Windows will prompt you to restart the computer so the changes will take effect and show the new ports. Select “No” to install the second port. Repeat the same process to install the second channel. Finally, in order for the changes to take effect you will have to restart the computer. 3-14 Quatech Inc.
4. Windows 95 Configuration Windows 95 maintains a registry of all known hardware installed in your computer. Inside this hardware registry Windows 95 keeps track of all of your system resources, such as I/O locations, IRQ levels, and DMA channels. The "Add New Hardware Wizard" utility in Windows 95 was designed to add new hardware and update this registry. An “INF” configuration file is included with the DS-100 to allow easy configuration in the Windows 95 environment .
6. 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 “OK” button. Windows 95 automatically browses the root directory for an INF file that defines configurations for Multi-function Adapters. If no INF files are found, click the “Browse” or “Other Location” button, double-click the Win95 sub directory on the installation diskette, and choose “OK”. The edit box should now read “A:\WIN95”. If it does, choose “OK”.
4.2 Viewing and Changing Resources with Device Manager The following instructions provide step-by-step instructions on viewing and changing resources of the DS-100 in Windows 95 using the “Device Manager” utility. Select Start|Help from within Windows 95 for additional information on this utility. 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 box.
5. Click the “Resources” tab located along the top of the properties box. Confirm that the resources Windows 95 has allocated for the DS-100 match the hardware configuration. To modify any of the resource settings click the resource name and click the “Change Setting” button. If the “Automatic Settings” option is selected, it will have to be unselected to access the “Change Settings” option. This is accomplished by pointing the mouse at the check next to “Automatic Settings” and clicking on it.
10. Use the Logical COM Ports numbers to access the serial ports on your DS-100 through your software applications. Note: The Logical COM Port name is assigned to your ports by Windows 95. This name is required by a Windows 95 application when accessing a particular port. 3-19 Quatech Inc.
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5. Addressing Ports 5.1 Setting the address The base address of each port of the DS-100 is set using two DIP switch packs. When setting the address selection switches, a switch in the "ON" position specifies that the corresponding address line must be a logic 0 for the port to be selected. Similarly, a switch in the "OFF" position forces the corresponding address line to be a logic 1 for the port to be selected.
Switch on bit = 0 Serial 0 uses SW1 and SW2 Serial 1 uses SW3 and SW4 Switch off bit = 1 Factory default setting for Serial 1 --- 03F8 hex (COM1) SW1 SW2 ON ON enable/disable 1 2 3 4 5 6 7 8 1 2 3 4 5 0 0 0 0 0 0 2 1 8 4 2 1 8 F 3 0 6 8 Factory default setting for Serial 2 --- 02F8 hex (COM2) SW3 SW4 ON ON enable/disable 1 2 3 4 5 6 7 8 1 2 3 4 5 0 0 0 0 0 0 2 0 8 4 2 1 8 F 2 0 6 8 enable/disable Example: 03E8 hex (typical for COM3
The standard addresses for serial ports COM1 and COM2 are listed in Figure 7. Recommended addresses for serial ports COM3 and COM4 are also listed. The switch settings for these addresses are shown in Figure 6. PORT TYPICAL I/O ADDRESS NOTES COM1 03F8 hex Factory default for Serial 0. COM2 02F8 hex Factory default for Serial 1. COM3 03E8 hex COM4 02E8 hex Recommendations only. No official standards exist for COM3 and COM4. Figure 7 --- Recommended addresses for serial ports 5.
6. Interrupt Level (IRQ) IRQ11 IRQ12 IRQ14 IRQ15 20 21 22 9 10 11 IRQ5 IRQ6 IRQ7 12 13 14 15 16 3 4 5 6 7 8 IRQ10 IRQ10 17 18 19 IRQ4 Serial 0 J3 IRQ3 IRQ2 The DS-100 allows the use of any interrupt level in the range IRQ2 to IRQ7, IRQ10 to IRQ12, IRQ14, or IRQ15, selected using jumper block J3 (for Serial 0) or J4 (for Serial 1). In Figure 9, the factory default settings for Serial 0 and Serial 1 are shown.
6.1 Interrupt Sharing Both ports on the DS-100 can share the same interrupt level or they can share their interrupt with another Quatech adapter supporting sharable interrupts. Jumper J2 can be used to connect the UART generated interrupt directly to the selected IRQ or to enable the interrupt sharing circuit. In either case, the software driving the serial ports must determine which port or ports are requesting service when an interrupt is generated.
7. External Connections EIA/TIA-232-E devices are classified by their function as either Data Terminal Equipment (DTE) or Data Communication Equipment (DCE). Generally, data terminal equipment is defined as the communication source and data communication equipment is defined as the device that provides a communication channel between two DTE-type devices.
To simplify connections to other devices, each port on the DS-100 is equipped with a jumper block that allows the port to be configured as either a DTE- or DCE-type device. This allows the DS-100 to communicate with either DTE- or DCE-type devices without using a null modem cable. J5 is used for Serial 0 and J6 is used for Serial 1. The DTE/DCE selection jumper blocks are illustrated in Figure 13.
The DS-100 connects to peripheral equipment through male D-9 connectors. Adapters are available to convert these connectors into standard D-25 male connectors. The standard serial port connections are listed in Figure 14.
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8. Specifications BAUD RATES: DATA RATE (kbaud) 115.2 4% TRAN 1000 10% TRAN 2470 MAXIMUM LOAD (pF) 15% TRAN 20% TRAN 25% TRAN 4300 5500 6600 NOTE 1: The signal transition time ratio is defined as the percentage of the unit interval or bit time (the inverse of the data rate) that is occupied by the signal transitioning from -3V to +3V. EIA/TIA-232-E defines a maximum signal transition time ratio of 4%; most RS-232 receivers will recognize signal transitions with much larger ratios.
-12 volts TEMPERATURE: HUMIDITY: 60 mA max Operating 0° to 70° Storage -50° to 80° 10% to 90% APPROVALS AND CERTIFICATIONS: FCC, CE, Windows 95, Windows NT OS SUPPORT:Windows 2000, Windows 95, Windows 3.1, Windows NT 4.0, OS/2 2.0, DOS 6.22, UNIX 7-2 Quatech Inc.
9. Troubleshooting Listed here are some common problems and frequent causes of those problems. Suggestions for corrective action are given. If the information here does not provide a solution, contact Quatech Customer Service for technical support. Any unauthorized repairs or modifications will void the DS-100's warranty. Computer will not boot up. 1. Is the DS-100 properly inserted? Remove the card and try again. Perhaps try a different expansion slot. 2.
DS-100 User's Manual Revision 4.
