ADLINK PXI-7921 - Manual (Page 5)

Table of Contents • i
Table of Contents
Chapter 1 Introduction............................................................... 1
1.1 Features............................................................................... 1
1.2 Applications ........................................................................ 2
1.3 Specifications...................................................................... 2
1.4 Software Support ................................................................ 3
Chapter 2 Installation................................................................. 5
2.1 Contents .............................................................................. 5
2.2 Unpacking........................................................................... 5
2.3 Mechanical Drawing........................................................... 6
2.4 Installing the switch module into a PXI Platform............... 6
Chapter 3 Signal Connection ..................................................... 9
3.1 PXI-7921 Topology ............................................................ 9
3.2 PXI-7921 Pin Assignments & Descriptions...................... 10
3.3 TB-6221 Terminal Board .................................................. 13
2-wire MUX........................................................................ 14
2-wire, 2-group MUX ......................................................... 15
2-wire, 4-group MUX ......................................................... 16
1-wire MUX........................................................................ 17
4-wire MUX........................................................................ 18
Chapter 4 Operation Theorem ................................................ 19
4.1 Hardware Block Diagram ................................................. 19
4.2 Operation Mode ................................................................ 20
4.3 Handshaking ..................................................................... 20
4.4 Trigger Bus ....................................................................... 24
4.5 Star Trigger ....................................................................... 25
4.6 Auxiliary Digital I/O......................................................... 26
4.7 Hot-Swap .......................................................................... 27
4.8 Emergency Shutdown ....................................................... 27
4.9 Watchdog Timer................................................................ 28
Warranty Policy ........................................................................ 31