National Instruments SCXI-1163 Chapter 3 Theory of Operation

© National Instruments Corporation 3-1 SCXI-1163 User Manual
Chapter 3
Theory of Operation
This chapter contains a functional overview of the SCXI-1163 module and explains the operation
of each functional unit making up the SCXI-1163.
Functional Overview
The block diagram in Figure 3-1 shows the key functional components of the SCXI-1163.
Power
Out 1
Out 2
Out 3
Out 0
Port 0
Port 7
SCXIbus
Rear Signal
Connector Module ID
Register
Address
Handler
Interfacing
and
Controls
Front Connector
•
•
•
•
•
•
•
•
•
Ground
Data
Register
Power
Out 29
Out 30
Out 31
Out 28
Ground
4
4
Figure 3-1. SCXI-1163 Block Diagram
The major components of the SCXI-1163 are as follows:
• The SCXIbus connector
• The interface and routing circuitry
• The register circuitry
• The optically isolated output channels
SCXIbus Connector
Figure 3-2 shows the pinout of the SCXIbus connector.