1269 User Manual
Understanding The 1269 6-1
Chapter 6
UNDERSTANDING THE 1269
Overview
The 1269 Mainframe consists of the
following major functional blocks.
C
Power Supply
C
Backplane
C
Cooling System
C
Monitoring System (Optional)
Figure 6-1
shows the functional block diagram of the 1269
Mainframe.
Power Supply
The power supply accepts power from the AC mains and
converts it to DC to power the following:
C
VXI modules installed into the backplane
C
Backplane terminations and daisy chaining logic
C
Module Cooling Fan
C
System Monitoring Module (Optional)
C
Temperature Monitor Module (Optional)
C
C
Front Panel Display (Optional)
Power Supply
Interconnection
Power is supplied to the backplane through board-to-board
connector P52 eliminating any wiring and sub-backplane
interconnect boards. This design reduces the path impedance
between the supply and the VXI modules receiving power,
which results in improved dynamic current performance. See
Appendix A
for specifications.
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