Atec Agilent-34980A - Manual (Page 7)

7
34980A multiplexer switch
modules
The 34980A multiplexer modules
can be used to connect one of many
different points to a single point.
You can connect to an external
instrument, or scan multiple analog
signals to the internal DMM.
Choose from the following features:
• 1-wire, 2-wire, or 4-wire
configurations
• High voltage—up to 300 V, 1 A
• High-density—70 2-wire or 80
1-wire channels
• Bandwidths up to 45 MHz
• Temperature measurements with
built-in thermocouple reference
junction (34921T)
• AC or DC current measurements
without external shunts
• Connections via standard 50- or
78-pin Dsub cables or detachable
terminal block
Figure 2. 34921A 40-channel armature multiplexer with low thermal offset (bank 2)
021
022
023
024
025
H
L
026
027
028
029
030
H
L
031
032
033
034
035
H
L
036
037
038
039
040
H
L
L H
912
L H
922
L H
ABus2 DMM (SENS)
913
L H
923
L H
ABus3
ABus1
Current
914
L H
924
L H
ABus4
911
L H
921
L H
931
041
L
L
I
Fuse
042
L
I
Fuse
043
L
I
Fuse
044
L
I
Fuse
I
DMM (MEAS)