Quatech QSC(LP)-300 user manual Data Rate Multiplier

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Data Rate Multiplier

Clock Mode

Max bps

Description

 

 

Auto clock mode enables applications to request any

Auto

921,600

baud rate up to 921,600. The hardware drivers will

select the correct clock multiplier based on the baud

 

 

 

 

rate requested

 

 

The X1 clock mode mimics a standard COM port. The

X1

115,200

hardware drivers lock the clock to the standard rate.

The port will run at the baud rate requested by the

 

 

 

 

application.

 

 

The X2 clock mode locks the ports hardware clock at

 

 

double the standard rate. The baud rate the port runs at

X2

230,400

will always be double the rate requested by the

applications. This mode is useful for legacy

 

 

 

 

applicattions which cannot request baud rates over

 

 

115,200

 

 

The X4 clock mode locks the ports hardware clock at

 

 

four times the standard rate. The baud rate the port

X4

460,800

runs at will always be four times the rate requested by

the application. This mode is useful for legacy

 

 

 

 

applications which cannot request baud rates over

 

 

115.200.

 

 

The X8 clock mode locks the ports hardware clock at

 

 

eight times the standard rate. The baud rate the port

X8

921,600

runs at will always be eight times the rate requested by

the application. This mode is useful for legacy

 

 

 

 

applications which cannot request baud rates over

 

 

115.200.

6.Double click the hardware class Ports (Com and LPT). Each Quatech PCI Serial Port listed in this class is a “child device” of the QSC(LP)-200/300 “parent device.”

7.Open the Properties dialog for a COM port, then click the RS-422/485tab to view the settings for that port.

Quatech QSC(LP)-200/300 User's Manual

18

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Contents QSCLP-200/300 Date of Purchase Model Number Page Declaration of Conformity IND Option --- Surge Suppression Upgrade General InformationExternal Connections PCI Resource MapSpecifications Troubleshooting Features QSCLP-200/300 Product Series Summary1 AUX1,2,3,4 pins 3 and 4, 7 and 8, 11 and 12, 15 Hardware ConfigurationSignal Connections Force High-Speed Uart Clock X8, pins 17 Hardware Installation Jumper/connector locationsWindows Configuration Windows MillenniumWindows Windows Page Windows Windows NT Viewing Resources with Device Manager AdapterPage Changing Resource Settings with Device Manager RS-422/485 Serial AdapterData Rate Multiplier Page Page DOS and other operating systems Other Operating SystemsOS/2 QTPCI.EXE QTPCI.EXE Expert Mode display DTR/DSR or RTS/CTS Operation RTS/CTS HandshakeRclk TclkAUXIN/AUXOUT Loopback Termination Resistors RS-422/485 Termination44 connector definitions RS-422/485 Peripheral ConnectionAUXOUT+ Auxout AUXIN+ Auxin GND Base Address and Interrupt Level IRQ Port Address RangeSpecifications Computer will not boot up QSCLP-200/300 Revision November 940-0146-114