Keysight 34921A - 34923 A Simplified Schematic (Two;Four-Wire)

Keysight 34921A-34925A Low Frequency Multiplexer Modules User’s Guide 31
Low Frequency Multiplexer Modules
34923A Simplified Schematic for Two- or Four-Wire Mode
This drawing shows two independent 20-channel 2-wire MUXes.
To change configuration modes, use the SYSTem:MODule:WIRE:MODE
command.
The three-digit number assigned to each switch represents the
channel number.
Bank Relays: Reed non-latching; Analog Bus Relays: Armature
non-latching
HL
HL
026
027
028
029
030
031
032
033
034
035
036
037
038
039
040
021
022
023
024
025
001
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
H
L
H
L
H
L
H
L
ABus2
DMM
(SENS)
ABus3
ABus4
923
913 914
924922
912911
921
ABus1
DMM
(MEAS)
HL HL HL H L
L
H
L
H
L
H
L
H
L
HL
L
H
LHLHLHLH
HL
HL
HL H L
H
LH
100 100
100
100
100
100
100
100
100
100
100 100
Bank 1
Bank 2
COM 1
COM 2
Analog Buses
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