Page 3 - Warranty Information
Warranty Information Quatech Inc. warrants the DS-200/300 to be free of defects for one (1) year from the date of purchase. Quatech Inc. will repair or replace any adapter that fails to perform under normal operatingconditions and in accordance with the procedures outlined in this document during th...
Page 4 - NOTICE; ii
© 1998, Quatech, Inc. NOTICE The information contained in this document cannot be reproduced in any form without the written consent of Quatech, Inc. Likewise, any softwareprograms that might accompany this document can be used only in accordancewith any license agreement(s) between the purchaser an...
Page 5 - iii
(This Page Intentionally Left Blank) DS-200/300 User's Manual iii
Page 6 - Table of Contents; Output Configuration; iv
Table of Contents 9-1 9. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 8. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6 7.8 RS-422/485 PeripheralConnection . . . . . . . . . . . . . ....
Page 7 - General Information
1. General Information The Quatech, Inc. DS-200/300 provides two RS-422/RS-485 asynchronous serialcommunication interfaces for IBM-compatible personal computer systems usingthe 16-bit ISA (Industry Standard Architecture) expansion bus. The DS-200/300's serial ports are implemented using 16550 or 167...
Page 9 - computer manufacturer.
2. Installation If the default address and interrupt settings are sufficient, the DS-200/300 can bequickly installed and put to use. The factory defaults are listed in Figure 1. YES 3 2F8 hex Serial 1 YES 4 3F8 hex Serial 0 ENABLED IRQ ADDRESS PORT Figure 1 --- Default address and IRQ settings for D...
Page 11 - Windows 95 Configuration; Using the Add New Hardware Wizard; utility. Click the “Next” button to continue.
3. Windows 95 Configuration Windows 95 maintains a registry of all known hardware installed in yourcomputer. Inside this hardware registry Windows 95 keeps track of all of yoursystem resources, such as I/O locations, IRQ levels, and DMA channels. The"Add New Hardware Wizard" utility in Windo...
Page 12 - NOTE
4. A hardware types list box should appear. Find the “Multi-function Adapters” type on the list and click it. Click the “Next” button tocontinue. 5. A list box opens with Manufacturers on the left and the associated board Models on the right. Click the “Have Disk” button. 6. An Install From Disk dia...
Page 13 - Viewing and Changing Resources with Device Manager; opens up the System Properties box.
10. Another dialog box will open to tell you that the installation is complete. Click the “Finish” button to end the software part of the installation. 11. Windows 95 now instructs you to shut down your computer and install the hardware. Click “Yes” to shut down your computer. Wait until Windows95 i...
Page 14 - properties box should open for the hardware adapter.
Figure 3--- Windows 95 Device Manager 4. Double click the DS-200/300 Enhanced Serial Adapter model name and a properties box should open for the hardware adapter. 5. Click the “Resources” tab located along the top of the properties box. Confirm that the resources Windows 95 has allocated for the DS-...
Page 16 - Setting the address
4. Addressing Ports 4.1 Setting the address The base address of each port of the DS-200/300 is set using two DIP switchpacks. When setting the address selection switches, a switch in the "ON" positionspecifies that the corresponding address line must be a logic 0 for the port to beselected. ...
Page 18 - Enabling or disabling ports; The factory default configuration is both serial ports enabled.; Enabled; Disabled
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. Theswitch settings for these addresses are shown in Figure 6. 02E8 hex COM4 Recommendations only. No official standardsexist for COM3 and COM4. 03E8 hex ...
Page 19 - Data Rate Multiplier; Data Rate Multiplier Jumper Block
5. Data Rate Multiplier A standard RS-422/485 serial port operates at a clock speed of 1.8432 MHz. Inorder to achieve higher data rates, the DS-200/300 Enhanced Serial Adapter canoperate at two times, four times (16750 UART only), or even eight times (16750UART only) this standard clock speed. The u...
Page 22 - Serial 0; Default is IRQ 4
6. Interrupt Level (IRQ) The DS-200/300 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 12, the factory default settings for Serial 0 andSerial 1 are shown. To select a diffe...
Page 23 - Interrupt Sharing; jumper block configurations
6.1 Interrupt Sharing Both ports on the DS-200/300 can share the same interrupt level or they can sharetheir interrupt with another Quatech adapter supporting sharable interrupts.Jumper J2 can be used to connect the UART generated interrupt directly to theselected IRQ or to enable the interrupt shar...
Page 24 - Interrupt Status Register
6.2 Interrupt Status Register The DS-200/300 is equipped with an Interrupt Status Register (ISR) which can beused to simplify the servicing of shared interrupts. This register is located at [baseaddress+7] along with the Options Register. Like the OR, the SP jumper must beremoved to access the ISR. ...
Page 29 - When operating in half duplex mode, the transmitters must
7.5 Half Duplex/Full Duplex selection Using jumper packs J6 and J8, the channels can be configured to operate in halfduplex mode. This causes the transmitters to be controlled by either the DataTerminal Ready (DTR) or the Request to Send (RTS) output from the UART. Inhalf duplex mode, if the UART si...
Page 31 - Termination Resistors; PINS
7.7 Termination Resistors Optional line termination resistors are provided for the input signals of each of theDS-200/300’s RS-422/485 ports. The user has the option of selecting RS-422termination ( 100W ), RS-485 termination (120 W ), or no termination. Line termination may be selected or removed u...
Page 34 - DRIVER RISE OR FALL TIME:; Two DB-9 female connectors
8. Specifications BAUD RATES: 921.6 kbps with 16750 UARTs230.4 kbps with 16550 UARTs UARTs: Two 16550 UARTs with 16-byte FIFOs or two 16750 UARTs with 64 byte FIFOs TRANSCEIVERS: MAX491 or compatible DRIVER RISE OR FALL TIME: 5 ns minimum15 ns typical25 ns maximum MAXIMUM DATA RATE: 2.5 Mbps BASE AD...
Page 36 - Computer will not boot up.; Perhaps try a different expansion slot.; Cannot communicate with other equipment.; to connect the following signals on a D-9 connector:
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 notprovide a solution, contact Quatech Customer Service for technical support. Any unauthorized repairs or modifications will void t...
