130
34980A User’s Guide
4
Low Frequency Multiplexer Switch Modules
34921T Terminal Block
This terminal block with screw- type connections is labeled with the
model number and the abbreviated module name. In addition, space is
available on the label for you to write the slot number.
The 34921T is the only terminal block that provides an isothermal
block with temperature reference for thermocouple measurements.
The temperature sensor is located on the bottom side of the PC board
as shown below. Also shown are two holes that you can use for
connecting an external temperature reference to the terminal block.
N O T E
All modules that connect to the internal DMM are interlock
protected. This means that when an installed module is exposed
(no terminal block or cable is connected), the Analog Bus relays are
open and disconnected from the Analog Buses. See
page 120
for
further information.
Temperature
Sensor
34921T (viewed from bottom side)
External
Reference
C A U T I O N
When wiring the terminal block via cables to the mainframe, make
sure the cables are connected to the correct connector. The cables
provide communication and power to the temperature sensor on
the 34921T terminal block. If cabling is not correct, an error may
occur indicating that the 34921A module is not fully operational.
Содержание Agilent 34980A
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Страница 314: ...302 34980A User s Guide 11 4 Channel Isolated D A Converter with Waveform Memory Module ...
Страница 322: ...310 34980A User s Guide 12 Multifunction Module with DIO D A and Totalizer ...
Страница 326: ...314 34980A User s Guide 13 Breadboard Module 34959A Breadboard Module Layout shown with cover removed ...
Страница 335: ...Breadboard Module 13 34980A User s Guide 323 Dimensions of Suggested maximum size Custom PC Board ...
Страница 336: ...324 34980A User s Guide 13 Breadboard Module PC Board Footprint of Suggested DB50 Connectors M F ...