Half- or full-duplex selection | Quatech DSC-200/300 specs

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

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Image 33

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

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 Features Factory default signal termination settings Hardware Configuration Full-duplex/Half-duplex Operation Signal Connections Clock Rate and Optional Registers Enable Scratchpad Register SPAD, J13 Clock multiplier jumper options Force High-Speed Uart Clock X2, X4, or X8, J10-J12 Jumper/connector locations Hardware Installation Channel Address Range Interrupt Status Register Enabling the Special Registers Bit Name Description Options Register RR1 RR0 Clock Rate Multiplier Windows Millennium Windows Configuration Windows Windows Windows Page Using the New Hardware Found Wizard Windows NT QTPCI.EXE DOS and Other Operating Systems QTPCI.EXE Basic Mode display QTPCI.EXE Expert Mode display OS/2 Jumper/Channel correspondence External Connections Rclk RTS/CTS Handshake AUXIN/AUXOUT Loopback Xclk Half-Duplex/Full-Duplex Selection Half- or full-duplex selection RS-422/485 Line termination resistance values Termination Resistors RS-422/485 Peripheral Connection DSC-200/300 connector definitions INTA# PCI Resource Map 10Specifications Computer will not boot up Troubleshooting DSC-200/300 Revision March