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Low Frequency Multiplexer Modules
34925A Simplified Schematic for One-Wire Mode
This drawing shows two independent 40-channel, 1-wire MUXes.
To change configuration modes, use the SYSTem:MODule:WIRE:MODE command
.
100
Overvoltage Protection
(each channel)
COM 1
H
H
COM 2
100
11
Current-Limiting Circuitry
54
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The three-digit number assigned to each switch represents the
channel number.
Bank relays: FET non-latching; Analog Bus relays: Armature
non-latching
H
001
H
002
003
004
005
006
007
008
009
010
L
911
H
L
Analog Buses
ABus1
DMM
(MEAS)
H
L
921
L
041
042
043
044
045
046
047
048
51.1
049
H
050
11
Keysight 34921A-34925A Low Frequency Multiplexer Modules User's Guide
34925A 40/80-Channel Optically-Isolated FET Multiplexer
Bank 1
011
021
H
H
012
022
013
023
014
024
015
025
016
026
017
027
018
028
019
029
020
030
912
913
H
L
H
L
ABus2
DMM
ABus3
(SENS)
H
L
H
L
922
923
051
061
062
052
063
053
054
064
065
055
066
056
057
067
068
058
069
059
H
H
060
070
Bank 2
031
H
032
033
034
035
036
037
038
039
040
914
H
L
ABus4
H
L
924
071
072
073
074
075
076
077
078
079
H
080
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