34925A Simplified Schematic For Two- Or Four-Wire Mode - Keysight Technologies 34922A User Manual

Low Frequency Multiplexer Modules

34925A 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
.
100
100
Overvoltage Protection
(each channel)
COM 1
H
COM 2
H
100
11
Current-Limiting Circuitry
50
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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
L
H
001
002
003
004
005
L
911
H L
Analog Buses
ABus1
DMM
(MEAS)
H L
921
L
021
022
023
024
H
51.1
025
L
11
Keysight 34921A-34925A Low Frequency Multiplexer Modules User's Guide
34925A 40/80-Channel Optically-Isolated FET Multiplexer
Bank 1
H
006 011
L L
007 012
013
008
009 014
010 015
912 913
H L H
ABus2
DMM
(SENS)
H L H
922 923
026 031
027 032
028 033
029 034
H
030 035
L
Bank 2
H H
016
L L
017
018
019
020
914
L H L
ABus3 ABus4
L H L
924
036
037
038
039
H H
040
L L