Contents
DAQCard-1200 User Manual
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Chapter 3
Connecting the Signals
I/O Connector ................................................................................................................ 3-1
Signal Connection Descriptions .................................................................................... 3-3
Types of Signal Sources ................................................................... 3-6
Input Configurations......................................................................... 3-7
Differential Connection Considerations
(DIFF Input Mode) .......................................................... 3-7
Single-Ended Connection Considerations
(RSE and NRSE Input Modes)........................................ 3-11
Common-Mode Signal Rejection Considerations.............. 3-13
Connecting Analog Output Signals................................................................. 3-14
Connecting Digital I/O Signals ....................................................................... 3-15
Port C Pin Connections..................................................................... 3-17
Timing Specifications....................................................................... 3-18
Mode 1 Input Timing ......................................................... 3-19
Mode 1 Output Timing....................................................... 3-20
Mode 2 Bidirectional Timing............................................. 3-20
Connecting Analog I/O and General-Purpose Timing Signals ....................... 3-22
Analog Input Timing Connections ................................................... 3-22
Analog Output Timing Connections................................................. 3-26
General-Purpose Timing Connections.............................................. 3-27
Functional Overview ..................................................................................................... 4-1
PC Card I/O Channel Interface Circuitry ...................................................................... 4-2
Timing ........................................................................................................................... 4-3
Analog Input .................................................................................................................. 4-5
Analog Input Circuitry .................................................................................... 4-6
Data Acquisition Timing................................................................................. 4-8
