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Quatech SSP-300, SSP-200 user manual Termination Resistors, Recommended Termination Resistor Values

Models: SSP-300 SSP-200

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6.3 Termination Resistors

No termination resistors are provided on the SSP-200/300 ports. Both output and input signals are connected only to the external connector. Any termination which is required must be added externally.

RS-422/485 Receiver

+	RXD+
	Rt
-	RXD-

RS-422/485 Receiver

AUXIN+

AUXIN-

Recommended Termination Resistor Values

RS-422	RS-485
100 ohm 1/2W resistor	60 ohms total resistance
	(120 ohms at each end)

Figure 0. RS-422/485 Termination

Hardware Information

6-5

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Quatech SSP-300, SSP-200 user manual Termination Resistors, Recommended Termination Resistor Values

Contents

INTERFACE CARDS FOR IBM PC/AT AND PS/2 SSP-200/300Users Manual Single Channel RS-422/485 PCMCIA Asynchronous AdapterSSP-200/300 Warranty InformationQuatech, Inc Manufacturers Address Standards to whichDeclaration of Conformity Manufacturers NameTable of Contents Standard D-9 Female 1. IntroductionPCMCIA Card SSP-200/300 Rev. I and later Users Manual This page intentionally left blankFile type DOS device driver 2. DOS/WindowsEnabler Client Driver recommendeddrive \path \ 2.1.1 Client Driver Installation2.1 SSP-200/300 Client Driver for DOS Ssocket 2.1.2 Command Line OptionsBaddress IirqOption DOS/Windows 2.1.2.3 Example DEVICE = C\SSP-200\SSP231CL.SYSs0,b300,i5,o22.1.2.4 Example DEVICE = C\SSP-200\SSP231CL.SYSi5,h,b300 2.1.2.5 Example DEVICE = C\SSP-200\SSP231CL.SYS b300,i5Generic Client Drivers 2.1.3 Common ProblemsAvailable Resources 2.2 SSP-200/300 Enabler for DOSMultiple Configuration Attempts Older Versions of Card and Socket ServicesIirq 2.2.1 Command Line OptionsBaddress Figure 0. DOS Enabler Output Enable Options 2.2.1.1 Example 1 SSP231EN.EXE Socket Numbers 2.2.2 Common ProblemsCard and Socket Services Software Memory Range Exclusion2-13 SSP-200/300 Rev. I and later Users Manual3. Windows 95/98/Millennium ME 3.1 Installing a SSP-200/300 Under Windows 95/98/ME3.2 SSP-200/300 Resource Settings in Windows 95/98/ME PC Card 3.2.1Viewing Resource Settings with Device Manager3.2.2Changing Resource Settings with Device Manager 1. Start the Windows 95/98/ME Device ManagerWindows 95/98/Millennium ME SSP-200/300 Rev. I and later Users Manual Base I/O Address Resource Modification Not Allowed 3.3 Frequently Asked QuestionsBasic Configuration List Not Available SSP-200/300 Rev. I and later Users Manual This page intentionally left blank4 Windows 4.1 Installing a SSP-200/300 Under WindowsSSP-200/300 Rev. I and later Users Manual 4. Double click ‘Serial Port Adapters’ 5. Double click ‘Drivers’Windows 6. Double click on ‘Windows 2000, XP, for PCI, PCMCIA, ISA’7. Click on ‘qserbrd’ and select open Manager 4.2 SSP-200/300 Resource Settings in WindowsWindows PCMCIA Serial Port which is listed under the hardware class Ports COM4.2.1 Viewing Resource Settings with Device Manager 4.2.2 Changing Resource Settings with Device Manager SSP-200/300 Rev. I and later Users Manual The X2 clock mode locks the ports hardware Clock ModeAuto clock mode enables applications to request The X1 clock mode mimics a standard COM port4-11 SSP-200/300 Rev. I and later Users ManualDTR is set to enable the transmitters Used in two-wire communication RS-422/485 Connector SetupRS-422/485 Duplex Mode RTS is set to enable the transmitters Used in two-wire communicationSSP-200/300 Rev. I and later Users Manual 4-14 WindowsSSP-200/300 Rev. I and later Users Manual 5 Windows NT 5.1 Installing SSP-200/300SSP-200/300 Rev. I and later Users Manual Device Manager Icon on DesktopWindows NT 3. Follow the steps for the ‘Add Quatech Hardware Wizard’Additional help is available online 6.1.1 Auxiliary Channel RTS-CTS Handshaking 6.1 Auxiliary Channel Configuration6. Hardware Information 6.1.2 Auxiliary Channel Handshaking Disabled Active Low 6.2 Half Duplex OperationOutput Enable 3 OptionsSSP-200/300 Rev. I and later Users Manual Recommended Termination Resistor Values 6.3 Termination ResistorsSSP-200/300 Rev. I and later Users Manual This page intentionally left blankStandard D-9 Female 7. External ConnectionsSSP-200/300 Rev. I and later Users Manual This page intentionally left blankConnector 8. SpecificationsPhysical Dimensions Power RequirementsUsers Manual Revision May Quatech, Inc SSP-200/300SSP-200/300 Rev. I and later Users Manual