Keithley 237 Instruction Manual

Matrix Switching Basics
2-6
Separate switching systems
Two single-card systems can be conÞgured by remov-
ing the backplane jumpers from one of the cards. The
two cards will be controlled by the same mainframe,
but they will be electrically isolated from each other.
Figure 2-8 shows an example using two Model 7012
matrix cards.
Narrow matrix expansion (4 × 20 matrix)
A narrow 4 row × 20 column matrix is conÞgured by
simply installing two “as shipped” Model 7012s in the
Model 7001 mainframe. By leaving the backplane
jumpers installed, the rows of the matrix card installed
in slot 1 (CARD 1) are automatically connected to the
rows of the matrix card installed in slot 2 (CARD 2)
through the analog backplane. The 4 × 20 matrix is
shown in Figure 2-9.
Figure 2-8
Two separate 4 × 10 matrices
1
2
3
4
110
Columns
7012
Rows
7001
Analog
Backplane
Card 1
110
7012
Card 2
4 x 10 Matrix
Columns
4 x 10 Matrix
1
2
3
4
Rows
Jumpers
Removed
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Keithley 237 Specifications

General

Brand	Keithley
Model	237
Category	Measuring Instruments
Language	English