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Multiplexer
Configurations
Switchbox
Scanning Voltmeter
14 Getting Started
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The E1476A multiplexer can be configured as a
or multiple-module) or as a
5-Digit Multimeter.
A switchbox configuration uses the "SWITCH" instrument driver and uses
the commands in Chapter 4. For a single-module switchbox, the channel
address (channel_list) has the form (@nn), where nn = channel number.
For a multiple-module switchbox, the channel address (channel_list) has
the form (@ccnn) where cc = card number and nn = channel number. See
Chapter 2 for switchbox applications. See Figure 1-3 for a typical
multiple-module switchbox configuration.
MULTIPLE-MODULE SWITCHBOX
Card Number
(Valid Numbers = 01-99)
Channel Addresses: 1nn, 2nn, 3nn, 4nn,
etc. where nn is the channel number
Figure 1-3. Typical Multiple-Module Switchbox
A scanning voltmeter configuration uses the voltmeter instrument driver
"VOLTMTR". The scanning voltmeter commands are different from the
switchbox commands listed in Chapter 4. A scanning voltmeter uses
the commands in the E1326B/E1411B 5-Digit Multimeter User's Manual
to control the switches and make measurements. See Chapter 3 for
scanning voltmeter applications. See Figure 1-4 for a typical scanning
voltmeter configuration.
Card Number
(Valid Numbers = 01-99)
Channel Addresses: 1nn, 2nn, 3nn,
etc. where nn is the channel number
Figure 1-4. Typical Scanning Voltmeter
switchbox
with the E1411B or E1326B
scanning voltmeter
Laddr = Logical
Address
03
04 05
01
02
SCANNING VOLTMETER
01 02
03
(single-module
Chapter 1
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