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SECTION 4 - PROGRAMMING GUIDE
MODULE ARCHITECTURE
The 40-518A is a two pole switching matrix with 128 crosspoints.Connections 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.
The two poles of the corresponding crosspoint are closed at the same time when a particular relay is energised. The
matrix architecture is are shown below:
The entire matrix is treated as a single programming sub-unit designated as Sub-Unit 1. The following page gives
some simple examples using the provided drivers: the IVI driver, the Direct I/O driver, and the IVI compliant driver.
Page 4.2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
40-518A-002 Single 16 x 8 Matrix
2 A 2-POLE MATRIX MODULE 40-518A
pickering
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