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Low Frequency Multiplexer Modules
34921A Simplified Schematic
This drawing shows two independent 20-channel 2-wire MUXes.
Current
L
Fuse
041
I
L
Fuse
042
I
L
Fuse
043
I
L
Fuse
044
I
Keysight 34921A-34925A Low Frequency Multiplexer Modules User's Guide
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
The three-digit number assigned to each switch represents the
channel number.
Bank Relays: Armature latching; Analog Bus Relays: Armature
non-latching
H
001
002
003
004
COM 1
005
H
L
911
H
Analog Buses
ABus1
I
L
Current
931
H
921
H
L
021
COM 2
022
023
024
H
025
Bank 1
H
011
006
L
L
007
012
008
013
009
014
010
015
912
L
H
L
ABus2
DMM
DMM
(MEAS)
(SENS)
L
H
L
922
026
031
027
032
028
033
029
034
H
030
035
L
L
Bank 2
H
H
016
L
L
017
018
019
020
913
914
H
L
H
L
ABus3
ABus4
H
L
H
L
923
924
036
037
038
039
H
H
040
L
L
17
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