Overview of the 34934A 1
Keysight 34934A User’s Guide 25
In 2-wire operation, the two matrices are:
– M1: uses both the H and L columns and rows; C1H-32H, C1L-C32L, R1H-R4H,
R1L-R4L; of Matrix 1.
– M2: uses both the H and L columns and rows; C1H-32H, C1L-C32L, R1H-R4H,
R1L-R4L; of Matrix 2.
As the examples illustrate, no physical matrix configuration changes are required
for 2-wire operation. You wire your test devices between corresponding high and
low matrix terminals or D-Sub pins, then operate the matrix in 2-wire mode by
using SCPI paired commands (e.g. ROUT:OPEN:PAIR).
A potential application of the 4x32 topology is to extend one 4x32 matrix to an
adjacent 4x128 matrix (a second 34934A module) to create a 4x160 (1-wire)
matrix with three independent 4x32 (1-wire) matrices.
4x32 1-Wire Operation, Test Circuit Examples
The four examples below each show two 1-wire circuit paths. The M1 matrices
wire up to the left side of the 34934T-001 terminal block; the M2 matrices wire on
the right.
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