4 Troubleshooting and Diagnostics
88 Keysight 34980A Service Guide
34923A 40/80-Channel Reed Multiplexer
The 34923A 40/80-Channel Reed Multiplexer (40/80-Ch Reed MUX) is divided
into two equal banks of non- latching reed switches. This module also contains
eight armature Analog Bus relays (channels 911-914 and 921-924), four on each
bank that can connect the bank relays to the system Analog Buses. You can
connect any of the channels to the internal DMM through ABus1 and ABus2 for
voltage or resistance measurements.
Using program commands or the mainframe front panel, you can control each of
the channel switches individually, and configure this module for differential
(2-wire or 4-wire) or single- ended (1-wire) mode. Refer to the simplified
schematic for two- or four-wire modes.
026 K626 061 K761
027 K627 062 K762
028 K628 063 K763
028 K629 064 K764
030 K630 065 K765
031 K631 066 K766
032 K632 067 K767
033 K633 068 K768
034 K634 069 K769
035 K635 070 K770
Backplane Backplane
911 K811 921 K821
912 K812 922 K822
913 K813 923 K823
914 K814 924 K824
Bank 1 Bank 2
To Next Page
Loading...
Need help?
General
