Rigol M300 Series - To Control MC3132

Chapter 2 Front Panel Operations RIGOL
M300 User’s Guide
2-51
To Control MC3132
MC3132 is a 32-channel multiplexer (MUX-32 for short). MC3132 is divided into two
banks of 16 two-wire channels (HI and LO) each and can be used for 2-wire and
4-wire connections. When making 4-wire resistance measurement, the instrument
automatically pairs channel n with channel n+16 (wherein, n is an integer between 1
and 16). MC3132 is used with the external terminal block (M3TB32) which has a
built-in thermocouple reference junction.
01
H
L
H
L
...
H
L
H
L
...
DMM
Source
H
L
DMM
Sense
H
L
16
17
32
Bank Switch
Channel Switches
98
99
97
Backplane Switches
H
L
Com
(4W Sense)
H
L
Com
Signals
to be
Measured
Reference
Junction
Terminal Block: M3TB32
H
L
01
H
L
32
.
.
.
78-Pin
Interface
Figure 2-17 MC3132 Schematic Diagram
The control interface of MC3132 is as shown in Figure 2-18. Use the up/down and
left/right direction keys to select the desired channel. The channel currently selected
is highlighted, for example,
. You can perform various operations on the channel
currently selected (such as disconnect and close the channel).