Quatech DSP-200/300 - Manuals

1. Introduction The DSP-200/300 is a dual channel RS-422/RS-485 asynchronous serial adapter for systemsequipped with PCMCIA Type II and/or Type III expansion sockets. The DSP-200/300 is aPCMCIA Type II (5 mm) card and is PCMCIA PC Card Standard Specification 2.1 compliant. The DSP-200/300's serial p...

This page intentionally left blank. 2-1 DSP-200/300 (Rev. I and later) User's Manual

H instructs the client driver to enable the RTS-CTS modem control handshake on theRS-422/485 port. When modem control handshaking in enabled, the 16C750UART’s RTS and CTS signals are connected to the RS-422/485 auxiliary channel.The auxiliary channel may then be used for handshaking between the DSP-...

Older Versions of Card and Socket Services: Some versions of Card and Socket Services dated before 1993 do not support general purposeI/O cards. If after careful installation of the Client Driver the DSP-200/300 does not configure oroperate properly, an updated version of Card and Socket Services ma...

H instructs the enabler to enable the RTS-CTS modem control handshake on theRS-422/485 port. When modem control handshaking in enabled, the 16C750UART’s RTS and CTS signals are connected to the RS-422/485 auxiliary channel.The auxiliary channel may then be used for handshaking between the DSP-200/30...

2.2.1.4 Example 4 DSP230EN.EXE (s0,b300,i3,wd8) In example 4, the Enabler will configure the DSP-200/300 in socket 0 with a base address of300H and IRQ 3 using a configuration memory window at segment D800. The DSP-200/300'sRS-422/485 output drivers will always be enabled, and RTS-CTS modem control ...

Furthermore, some systems use the high memory area for BIOS shadowing to improve overallsystem performance. In order for the Enabler to operate, any BIOS shadowing must be disabledin the address range specified for the configuration window. BIOS shadowing can usually bedisabled through the system's ...

transmitter may be enabled and disabled via the RTS (request to send) or DTR (dataterminal ready) signals, or set to enable only when data is being transmitted(auto-toggle). Both RTS and DTR are controlled through the Modem ControlRegister of the 16750. When the Use Automatic Settings check box is e...

** Handshaking indicates RTS routed to AUXOUT, AUXIN routed to CTS, and TCLK routed to RCLK.Loopback indicates RTS routed to CTS, AUXIN routed to AUXOUT, and TCLK routed to RCLK.Clocking indicates RTS routed to CTS, AUXIN routed to RCLK, and TCLK routed to AUXOUT. *** Any indicates variable value; t...

4 Windows 2000 To allow easy configuration of the DSP-200/300, an Windows 2000 "INF" configuration file has been written for the hardware. This configuration file supports the DSP-200/300 in bothaddressing modes: block mode and “com” mode. Additionally, the RTS-CTS modem controlhandshake opt...

8. Select ‘OK’ at the ‘Files Needed’ window 9. The same process as above in steps 1-9 will apply for the next file ‘qserpt.inf’. In step 7 be sure to choose ‘qserpt.inf’ and select ‘Open’. 4.2 DSP-200/300 Resource Settings in Windows 2000 Windows 2000 maintains a registry of all known hardware insta...

4.2.1 Viewing Resource Settings with Device Manager 1. Start the Windows 2000 Device Manager . 2. Double click on the hardware class Quatech Multiport Serial Devices to list hardware devices in the class. 3. The DSP-200/300 “parent device” belongs to this hardware class. The device name for the DSP-...

6. Use the COM Port device names (COM5, COM6, etc.) to access any of the particular serial ports on the DSP-200/300. These names are required by Windows 2000 applications when accessing particular ports. 4.2.2 Changing Resource Settings with Device Manager 1. Start the Windows 2000 Device Manager . ...

4. Open the Properties dialog for the DSP-200/300 device (Figure 12), then click the Advanced tab to view the clock rate settings. Windows 2000 4-8

9. To modify the Interrupt Request setting click the resource name and click the Change Setting button. An Edit Resource window will open up. Inside this window click on the up/down arrows to the right of the Interrupt Request value. This scrollsyou through all of the allowable resources for your ha...

5 Windows NT 5.1 Installing DSP-200/300 To allow easy configuration of the DSP-200/300 the Quatech Device Manager for Windows NThas been written for the hardware. This configuration utility supports the DSP-200/300 only inblock addressing mode. To begin the installation, open Windows Explorer and se...

1. Locate and double click the Quatech Device Manager icon on the desktop Device Manager Icon on Desktop 2. Click the ‘Add’ button at the bottom of the Quatech Device Manager Window 5-3 DSP-200/300 (Rev. I and later) User's Manual

6. Hardware Information 6.1 Auxiliary Channel Configuration An auxiliary channel is provided which allows for handshaking between the DSP-200/300 portand a peripheral device. This auxiliary channel may be configured in one of two ways: v RTS-CTS handshake enabled. v handshaking is disabled. 6.1.1 Au...

6.2 Half Duplex Operation The DSP-200/300’s ports may be configured for either full duplex or half duplex operation. Bydefault, the RS-422/485 ports are configured for full duplex operation with the RS-422/485output drivers always enabled. In half duplex mode, the RS-422/485 transmitter may be enabl...

Selection of half duplex mode operation is dependent upon the configuration software and/or theoperating system used. Each of these, however, ultimately control the half duplex mode byaccessing the PCMCIA Configuration Register on the DSP-200/300. CAUTION: When operating in half duplex mode, the tra...

6.3 Termination Resistors No termination resistors are provided on the DSP-200/300 ports. Both output and input signalsare connected only to the external connector. Any termination which is required must be addedexternally. + - RS-422/485 Receiver Rt RXD+ RXD- + - RS-422/485 Receiver Rt AUXIN+ AUXIN...

7. External Connections An adapter cable is included with the DSP-200/300 to convert the 9-pin PCMCIA outputconnector into a standard D-9 female connector, data terminal equipment (DTE), as shown in thefigures below. Standard D-9 (Male) Figure 14. DSP-200/300 Adapter Cable. D-9 Female Connector 1 2 ...

8. Specifications Bus Interface PCMCIA PC Card Standard 2.1 compliant Physical Dimensions Type II PCMCIA card (5mm) Maximum Baud Rate 921.6K Power Requirements +5 volts 20 mA (typical) 30 mA (maximum) Connector Adapter to standard female D-9 Specifications 8-2