34925A Simplified Schematic For One-Wire Mode - Agilent Technologies 34921A User Manual

34925A Simplified Schematic for One-Wire Mode

This drawing shows two independent 40- channel, 1- wire MUXes.
To change configuration modes, use the
command.
100Ω
Overvoltage Protection
(each channel)
COM 1
H L
H
COM 2
100Ω
11Ω
Current-Limiting Circuitry
Agilent 34921A-34925A Low Frequency Multiplexer Modules User's Guide
H
001
002
003
004
005
006
007
008
009
010
911
H
Analog Buses
H
921
L
041
042
043
044
045
046
047
048
51.1Ω
049
050
11Ω
34925A 40/80-Channel Optically-Isolated FET Multiplexer
SYSTem:MODule:WIRE:MODE
NOTE: The three-digit number assigned to each
switch represents the channel number.
NOTE:
Bank relays: FET non-latching
Analog Bus relays: Armature non-latching
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
L H L
ABus1 ABus2
DMM DMM
(MEAS) (SENS)
L H L
922
051 061
062
052
063
053
064
054
065
055
066
056
067
057
068
058
069
059
H H
070
060
Bank 2
031
H H
032
033
034
035
036
037
038
039
040
913 914
H L H L
ABus3 ABus4
H L
H L
923 924
071
072
073
074
075
076
077
078
079
H
H
080
39