Contents
DSC-200/300
Date of Purchase Model Number
Page
Declaration of Conformity
IND Option --- Surge Suppression Upgrade
Changing Resource Settings with Device Manager
2 AUX0SEL1,0, AUX1SEL1,0 J12,11,19,18
4 TGL0SEL1,0, TGL1SEL1,0 J15,14,22,21
External Connections
Half-Duplex/Full-Duplex/Auto-Toggle Selection
General Information
Features
DSC-200/300 Product Series Summary
Signal Connections
Full-duplex/Half-duplex Operation
Jumpers J10-J23 define the options for this card
RCLK0SEL, RCLK1SEL J13
1 CTS0SEL, CTS1SEL J10,17
RXEN0SEL, RXEN1SEL J16
Enable Scratchpad Register SPAD, J2
Clock Rate and Optional Registers
Clock multiplier jumper options
Hardware Installation
Base Address and Interrupt Level IRQ
Enabling the Special Registers
Interrupt Status Register
Quatech Modem Control Register
Quatech Modem Control Register
Options Register
Bit Name Description
Clock Rate Multiplier
RR1 RR0
Windows Millennium
Windows
Windows
Windows
Windows NT
Viewing Resources with Device Manager
Quatech DSC-200/300 PCI Two-Port RS-422/RS485 Serial Adapter
Adapter
Data Rate Multiplier
Application. This mode is useful for legacy
Used when external handshaking or
Page
OS/2
DOS and other operating systems
QTPCI.EXE
QTPCI.EXE Expert Mode display
RTS/CTS Handshake
Jumpers J10-12
Rclk
Tclk
AUXIN/AUXOUT Loopback
AUXIN/AUXOUT loopback
Half/full-duplex and Auto-Toggle selection
Termination Resistors
RS-422/485 Termination
DSC-200/300 connector definitions
RS-422/485 Peripheral Connection
PCI Resource Map
Specifications
Computer will not boot up