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Agilent L4421A

40-Channel Armature Multiplexer

Data Sheet

• LXI compliance includes built-in Ethernet

connectivity

• Fully-featured graphical web interface

• 40 2-wire latching armature relays

• Thermocouple reference junction for

temperature measurements (requires

external DMM)

• Relay counter

• Scan up to 100 ch/s

• 300 V, 1 A switch; 2 A carry current

• Software drivers for most common

programming environments

40-channel multiplexer offers high-

performance signal switching wher-

ever your application needs it

The Agilent L4421A is a high-perfor-

mance 40-channel armature multiplexer

that is LXI Class C compliant. With

its small size and Ethernet connectivi-

ty, this switch can be placed wherever

your application needs it.

The L4421A is a versatile multiplexer

for general purpose scanning or,

when using the module in a non-scan-

ning mode, you can close as many

channels as you wish. The low ther-

mal offset characteristics and built-in

thermocouple reference on the terminal

block, make it ideal for temperature

measurements when used with an

external DMM. The dense, multi-func-

tion switching with 100 channel/ sec-

ond scan rates addresses a broad

spectrum of data acquisition, design

verification and functional test appli-

cations. The Ethernet connection also

simplifies distributed data acquisition

so that you can collect data from mul-

tiple locations.

Four additional fused inputs (channels

41- 44) can route up to 1 A of current to

an external DMM, allowing for AC and

DC current measurements without the

need for external shunt resistors.

Using this LXI instrument, you’ll get all

the benefits of an Ethernet connection,

instrument web interface, standard soft-

ware drivers and more. The LXI standard

is supported by multiple vendors,

enabling lower cost of test with acceler-

ated test integration and development.

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Inhaltsverzeichnis

Seite 1 - Agilent L4421A

Agilent L4421A 40-Channel Armature Multiplexer Data Sheet• LXI compliance includes built-in Ethernet connectivity • Fully-featured graphical web in

Seite 2

2Figure 1. L4421A 40-channel armature multiplexer with low thermal offset (bank 2).Switch features for ﬂexibleand reliable connectionsConnect one of m

Seite 3

3Figure 2. The web interface makes it easy to set up, troubleshoot and maintain your test remotely.Fully-featured graphical web interface makes it ea

Seite 4

4High-performance switching wherever your application needs itPower buttonStatus LEDsExternal trigger to synchronize eventsOptional GPIB Built-in Ethe

Seite 5 - Product Specifications

5Product SpecificationsSpecifications and CharacteristicsChannels/configurations 40 2-wire20 4-wire4-current (1.5 A fused)Switch type Armature Latchin

Seite 6 - (continued)

6Product Specifications (continued)Command Execution Time in msec:GPIB LANOpen or Close 4.7 5.3Init/*WAI 1.9 3Close/Init/Open 12.4 14Scanning rates wi

Seite 7

7Product Specifications (continued)SoftwareAgilent connectivity Agilent I/O Libraries Suite 14 or greater (E2094N)software includedMinimum system requ

Seite 8 - Related literature

8Ordering informationL4421A 40-chan armature multiplexerIncludes User’s guide on CD, power cord, and Quick Start packageOption -GPIB Adds GPIB interfa

Seite 9 - (BP-7-22-13)

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