Quatech DSC-200, DSC-300 user manual Half- or full-duplex selection

Page 33

Jumpers J6, J8

		Tx ENABLE	6
	Tx ENABLE		5
Tx ENABLE			4
				6
	Tx ENABLE
	Tx ENABLE		5
	Tx ENABLE		4
			6
	Tx ENABLE
Tx ENABLE			5
Tx ENABLE			4

3	Rx ENABLE
2	RTS	Half-Duplex(DTR) Operation
1	DTR
3	Rx ENABLE
2	RTS	Half-Duplex(RTS) Operation
1	DTR
3	Rx ENABLE
2	RTS	Full-Duplex Operation
1	DTR

Figure 23 --- Half- or full-duplex selection

AUXOUT		RS-422 or		+
		RS-485		-
		Driver
		TXEN
6	3
5	2			AUXIN	RS-422 or
5	2				RS-485
					Receiver
4	1				RXEN
XCLK
RTS
CTS
RCLK
DTR			6	3
DSR			6	3
DCD			5	2
RI			5	2

4 1

+

-

Figure 24 --- Output control block diagram

Quatech DSC-200/300 User's Manual

33

Image 33

Contents DSC-200/300 Warranty Information Page Declaration of Conformity Manufacturers Name Using the New Hardware Found Wizard RS-422 or RS-485 Signal Line TerminationAddress Map and Special Registers Base Address and Interrupt Level IRQPage General Information IND Option --- Surge Suppression Upgrade FeaturesFactory default signal termination settings Hardware ConfigurationFull-duplex/Half-duplex Operation Signal ConnectionsClock Rate and Optional Registers Enable Scratchpad Register SPAD, J13Clock multiplier jumper options Force High-Speed Uart Clock X2, X4, or X8, J10-J12Jumper/connector locations Hardware InstallationChannel Address Range Interrupt Status Register Enabling the Special RegistersBit Name Description Options RegisterRR1 RR0 Clock Rate MultiplierWindows Millennium Windows ConfigurationWindows Windows Windows Page Using the New Hardware Found Wizard Windows NT QTPCI.EXE DOS and Other Operating SystemsQTPCI.EXE Basic Mode display QTPCI.EXE Expert Mode display OS/2 Jumper/Channel correspondence External Connections Rclk RTS/CTS HandshakeAUXIN/AUXOUT Loopback XclkHalf-Duplex/Full-Duplex Selection Half- or full-duplex selection RS-422/485 Line termination resistance values Termination ResistorsRS-422/485 Peripheral Connection DSC-200/300 connector definitionsINTA# PCI Resource Map10Specifications Computer will not boot up TroubleshootingDSC-200/300 Revision June