Page 4.3
BRIC
INTEGRATED PXI MATRIX SYSTEM WITH BIRST™ (40-562B)
pickering
SECTION 4 - PROGRAMMING GUIDE
MODULE ARCHITECTURE - X8 CONFIGURATIONS
Versions of the 40-562B with 8 Y connections are high density single or double pole switching matrices constructed
from 22x8 sub-matrix cards linked with an analog backplane. Depending upon the mechanical size, (BRIC2, 4,
8 or 12) between 2 and 18 sub-matrix cards can be fitted. Signal paths are made by operating the relays at the
crosspoints between X and Y lines allowing single X-Y connections, or X-X connections using a Y line as a path.
Y signals are routed between sub-matrix cards via the analog backplane, Isolation switches are included between
the Y bus and the backplane. The isolation switches disconnect unused Y signals from the backplane preserving
bandwidth and crosstalk performance. An example configuration for a 396x8 matrix using 18 sub-matrix cards is
shown in the diagram below.
Isolation
Switches
Isolation
Switches
Isolation
Switches
X1
X22
Front Panel Connector
Isolation
Switches
Sub-matrix Card #1
Analog
Backplane
X45
X66
X375
X396
Y1
Y8
X23
X44
Front Panel Connector
Front Panel Connector
Front Panel Connector
Sub-matrix Card #2
Sub-matrix Card #3
Sub-matrix Card #18
Figure 4.2 - Architecture of the 40-562B 396x8 Matrix With 18 Sub-Matrix Cards
