Agilent 34980A  Multifunction Switch/Measure Unit *34980-90005*

4 Introduction to the Plug-In Modules for the 34980A
Slot and Channel Addressing Scheme
The eight module slots in the 34980A are arranged as shown below.
Slot Number Indicators
The slot and channel addressing scheme for the 34980A follows the form
sccc where s is the mainframe slot number (1 through 8) and ccc is the
three- digit channel number. Note that MUX channels numbers are
derived differently from matrix modules, and channel numbers for matrix
modules are derived differently between 1- wire and 2- wire configuration
modes.
Displayed Number... Means This... Determined by...
1014 A MUX module is in slot 1, channel of
interest is 14. This channel is labeled on
the simplified schematics as 014 on
Bank 1 of each MUX module.
3921 A MUX or matrix module is in slot 3,
channel of interest is 921 (Analog Bus
relay on ABus1)
5304 A 34931A, 34932A, 34933A (2-wire
mode) matrix module is in slot 5,
crosspoint is row 3, column 4.
2437 A 34933A matrix module in 1-wire
mode is in slot 2, matrix of interest is 4,
crosspoint is row 3, column 7.
MUX module channel numbers are
determined by the numbers assigned to
the switches on each bank. Channel
numbers contain three digits.
MUX and matrix channel numbers for the
Analog Bus relays are determined by the
number assigned to the relays.
Matrix module (in 2-wire mode) channel
numbers are derived from the crosspoint
or intersection of rows and columns,
columns having two digits).
34933A matrix module (in 1-wire mode)
channel numbers are derived from a
specific matrix number and the crosspoint
or intersection of rows and columns on
that matrix.
166 Agilent 34980A Mainframe User’s Guide
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