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Keysight Technologies
L4452A Multifunction with
Digital I/O, D/A, Totalizer
Data Sheet
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Introduction
Multifunction instrument offers your system control functionality wherever your
application needs it
The Keysight Technologies, Inc. L4452A is a multi-function instrument that is LXI Class C compliant.
With its small size and Ethernet connectivity, this multifunction instrument can be placed wherever your
application needs it.
The Keysight L4452A allows great exibility for a variety of sense and control applications. It combines four
8-bit channels of digital input and output, a 100 kHz gated totalizer, and two ±12 V analog outputs all on a
single earth-referenced module.
Using this LXI instrument, you’ll get all the benets of an Ethernet connection, built-in instrument web
interface, standard software drivers and more. The LXI standard is supported by multiple vendors, enabling
lower cost of test with accelerated test integration and development.
– LXI compliance includes built-in Ethernet connectivity
– Fully-featured graphical web interface
– 32-bits of digital I/O up to 42 V
– 100 kHz gated totalizer
– Two ±12 V analog outputs with 1 mV of resolution
– Software drivers for most common programming environments
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Digital I/O, D/A converter
and totalizer for your most
common test requirements
The L4452A combines digital I/O,
analog outputs and a gated totalizer
for your most common system control
needs.
The digital I/O supports output levels
up to 42 V. These channels can be
used with an external power supply to
control external devices or to sense
limit switch and digital bus status with
no complex handshake modes.
You can use the totalizer input to count
events. The digital inputs and totalizer
inputs may be included in a scan. Alarm
limits for the digital and event counter
inputs are evaluated continuously,
capturing and logging alarm conditions
even between scans.
System connections you can
trust
The L4452A comes with one heavy duty
50-pin Dsub connector that allows for
simple, reliable connection options.
Each connector uses 30 micro-inches
of gold to ensure a repeatable, accurate
measurement. Other connection
options include:
– Detachable terminal blocks with
strain relief
– Low-cost, standard 50-pin Dsub
connector kits and cables
– Mass interconnect solutions
Ethernet connectivity enables
simple connection to the
network and remote access to
measurements
32 bits
16 bits
8
8
8
8
DIO
bank
Totalizer
DAC
1
Bit 0
Bit 7
Bit 8
Bit 15
Bit 16
Bit 23
Bit 24
Bit 31
Cnt H
Cnt L
Gate
Gate
Channel
001
Channel
002
Channel
003
Channel
004
Channel
005
Channel
006
The analog outputs can output up
to ±12 V or 10 mA DC with 1 mV of
resolution. They can be used to source
bias voltages to your device under test,
to control your analog programmable
power supplies, or use the outputs as
set points for your control systems.
External trigger capabilities make it
easy for you to time and synchronize
measurements and other events. This
can help you determine when to begin
or end a scan.
The Ethernet interface offers highspeed connections that allow for
remote access and control. You can
set up a private network to filter out
unwanted LAN traffic and speed up the
I/O throughput, or take advantage of
the remote capabilities and distribute
your tests worldwide. Monitor,
troubleshoot, or debug your application
remotely. Ethernet communication also
can be used with the support of LAN
sockets connections.
The optional GPIB interface has many
years of proven reliability and can be
used for easy integration into existing
applications.
16 bits
Figure 1. L4452A Multifunction Digital I/O, D/A,
totalizer.
DAC
2
Channel
007
3
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The L4452A ships with the Keysight
E2094N I/O Libraries Suite, which
enables connections for Keysight and
non-Keysight modular and traditional
instruments. This makes it easy for you
to configure and integrate instruments
into your system.
Fully-featured graphical web
interface makes it easy to
set-up and troubleshoot your
tests from anywhere in the
world
The built-in web interface provides
remote access and control of the
instrument via a Java-enabled
browser such as Internet Explorer.
Using the web interface, you can set
up, troubleshoot, and monitor your
instrument from remote locations.
– View and modify instrument
setup
– Configure I/O channels, analog
outputs, totalizer and alarms
– Read and write I/O channels
– Output analog channels
– View error queue
– Get status reports, current
configuration, firmware revisions,
and more
Figure 2. The Web interface makes it easy to set up, troubleshoot and monitor your test remotely.
Additionally, since the web interface
is built into the instrument, you can
access it on any operating system that
supports the web browser without
having to install any special software.
Password protection and LAN lockout
are also provided to limit access for
additional security.
Software for most popular
programming environments
Full support for standard programming
environments ensures compatibility and
efficiency. You can use direct I/O with
your own software, or use standard
IVI and LabVIEW software drivers that
provide compatibility with the most
popular development environments:
– Keysight T&M Toolkit for
Microsoft Visual Studio.NET
and Keysight VEE Pro
– National Instruments LabVIEW,
LabWindows/CVI, TestStand,
and Switch Manager
– Microsoft C/C++ and Visual
Basic
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High-performance switching wherever your application needs it
Power
button
Status LEDs
Easy connection options
with terminal blocks,
standard 50-pin cables or
connector kits
Optional GPIB Built-in Ethernet
External trigger to
synchronize events
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Product specications
Digital input/output characteristics
Four 8-bit channels, 8-bits wide, input
or output, non-isolated Vin(L) < 0.8 V (TTL)
Vin(H) > 2.0 V (TTL)
Vout(L) < 0.8 V @Iout = -400 mA per output
Vout(H) > 2.4 V @ Iout = 1 mA
Vin(H) max < 42 V with external open drain pull-up
Alarm Maskable pattern match or state change
Speed 4 ms (max) alarm sampling
Latency 5 ms (typ) to 34980A alarm output
Read/write speed 95/s
Totalize input characteristics
Max count 226 - 1
Totalize input 100 kHz (max) rising or falling edge, program-
mable
Signal level 1 Vp-p (min) 42 Vpk (max)
Threshold 0 V or TTL
Gate input TTL-Hi, TTL-Lo, or none
Count reset Manual or read + reset
Read speed 85 rdgs/s
Analog output characteristics
DAC 1, 2 ±12 V, non-isolated
Resolution 1 mV
IOUT 10 mA max
Settling time 1 ms to 0.01% of output
Accuracy 1 year ±(% of output + mV)
(0.25% + 20 mV)
Temp. coefficient ±(0.015% + 1 mV)/°C
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Product specications (continued)
Data out of memory to LAN or GPIB
(Data transfers rate with 1000 channel blocks) GPIB
rds/s
Readings 2560 3542
Readings with timestamp 1304 1826
Readings with all
format options ON
Scan triggering
Source Internal, external, software, or on monitor channel alarm
Scan count 1 to 50,000 or continuous
Scan interval 0 to 99 hours; 1 ms step size
Channel delay 0 to 60 seconds per channel; 1 ms step size
External trig delay <2 ms. With monitor on <200 ms
External trig jitter <2 ms
Alarms
Digital inputs Digital in maskable pattern match or state change frequency and
Alarm on channel Alarm evaluated each reading
Alarm outputs 2 TTL compatible
Latency 5 ms (typical)
Memory
Type Volatile
Readings 500,000 with timestamp readable during scan
States 5 instrument states with user label in non-volatile memory
General specications
Power supply Universal 100 V to 240 V ±10%
Power line frequency 50 Hz to 60 Hz ±10% automatically sensed
Power consumption 15 VA
Operating environment Full accuracy for 0°C to 55°C
Storage environment -40°C to 70°C
Dimensions (H x W x L) 40.9 x 212.3 x 379.3 mm
Weight 3.6 kg, 8 lbs
Safety conforms to CSA, UL/IEC/EN 61010-1
EMC conforms to IEC/EN 61326-1, CISPR 11
Warranty 3 years
980 1361
totalize: Hi limit only
Selectable TTL logic Hi or Lo on fail
Full accuracy to 80% R.H. at 40 °C
Pollution degree 1 of IEC 61010-1
1.61 x 8.36 x 14.93 in
LAN (w/ VXI 11)
rds/s
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Product specications (continued)
Software
Keysight connnectivity
software included
Minimum system requirements
PC hardware Intel Pentium 100 MHz, 64 Mbyte RAM, 210 Mbyte disk space
Operating system
Computer interface
Software driver support for programming languages
Software drivers IVI-C and IVI-COM for Windows NT/2000/XP
Compatible with programming tools and environments
Keysight VEE Pro
National Instruments TestStand
Microsoft Visual Studio.NET
1
Keysight I/O Libraries Suite 14 or greater (E2094N)
Display 800x600, 256 colors, CD-ROM drive
Windows 98 SE/NT/2000/XP
Standard LAN 10BaseT/100BaseTx
Optional IEEE 488.2 GPIB
LabVIEW
T&M Toolkit
(requires VisualStudio.NET)
Measurement Studio
LabWindows/CVI
LabVIEW
Switch Executive
C/C++
Visual Basic 6
1 Load I/O Libraries Version M for Windows NT support or version 14.0 for Windows 98 SE support
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Ordering information
Related literature
L4452A Multifunction instrument
with digital I/O, D/A converters and
totalizer
Includes User’s guide on CD, power
cord, and Quick Start package
Option -GPIB
Adds GPIB interface
Option 0B0
Deletes printed manual set, full documentation included on CD ROM
Option ABA
English printed manual set
Connection options
Select terminal block for discrete wiring, cables or connector kits. Cables
and connector kit requir one per instrument.
Other accessories
Y116 0A
Rack mount kit for L4400 series instruments-racks 2 instruments side-by-side
with sliding tray
Note: when using the L4400 Series
Rack Mount Kit, use the Y1139A solder
cup connector kit rather than the
34921T terminal block.
For additional information please visit:
http://www.keysight.com/find/L4452A
Data sheets
5988-6302EN, Keysight VEE Pro
5989-1441EN, Keysight W1130B T&M
Toolkit 2.1 with Test Automation
5989-1439EN, Keysight E2094N I/O
Libraries Suite 15.5
34952T
Terminal block for 34951A and L4451A
4-Ch D/A converter
Y113 5A
1.5 m 50-pin Dsub, M/F twisted pair
with outer shield cable – 300 V
Y113 6A
3 m 50-pin Dsub, M/F twisted pair with
outer shield cable – 300 V
Y1141A
Solder cup connector kit with male
50-pin Dsub
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10 | Keysight | L4452A Multifunction with Digital I/0, D/A, Totalizer - Data Sheet
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AdvancedTCA® Extensions for Instrumentation and Test (AXIe) is an
open standard that extends the AdvancedTCA for general purpose and
semiconductor test. Keysight is a founding member of the AXIe consortium.
ATCA®, AdvancedTCA®, and the ATCA logo are registered US trademarks of
the PCI Industrial Computer Manufacturers Group.
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LAN eXtensions for Instruments puts the power of Ethernet and the
Web inside your test systems. Keysight is a founding member of the LXI
consortium.
www.pxisa.org
PCI eXtensions for Instrumentation (PXI) modular instrumentation delivers a
rugged, PC-based high-performance measurement and automation system.
Three-Year Warranty
www.keysight.com/find/ThreeYearWarranty
Keysight’s commitment to superior product quality and lower total cost
of ownership. The only test and measurement company with three-year
warranty standard on all instruments, worldwide.
Keysight Assurance Plans
www.keysight.com/find/AssurancePlans
Up to five years of protection and no budgetary surprises to ensure your
instruments are operating to specification so you can rely on accurate
measurements.
www.keysight.com/quality
Keysight Technologies, Inc.
DEKRA Certified ISO 9001:2008
Quality Management System
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www.keysight.com/find/channelpartners
Get the best of both worlds: Keysight’s measurement expertise and product
breadth, combined with channel partner convenience.
www.keysight.com/find/L4452A
For more information on Keysight
Technologies’ products, applications or
services, please contact your local Keysight
office. The complete list is available at:
www.keysight.com/find/contactus
Americas
Canada (877) 894 4414
Brazil 55 11 3351 7010
Mexico 001 800 254 2440
United States (800) 829 4444
Asia Pacic
Australia 1 800 629 485
China 800 810 0189
Hong Kong 800 938 693
India 1 800 112 929
Japan 0120 (421) 345
Korea 080 769 0800
Malaysia 1 800 888 848
Singapore 1 800 375 8100
Taiwan 0800 047 866
Other AP Countries (65) 6375 8100
Europe & Middle East
Austria 0800 001122
Belgium 0800 58580
Finland 0800 523252
France 0805 980333
Germany 0800 6270999
Ireland 1800 832700
Israel 1 809 343051
Italy 800 599100
Luxembourg +32 800 58580
Netherlands 0800 0233200
Russia 8800 5009286
Spain 0800 000154
Sweden 0200 882255
Switzerland 0800 805353
Opt. 1 (DE)
Opt. 2 (FR)
Opt. 3 (IT)
United Kingdom 0800 0260637
For other unlisted countries:
www.keysight.com/find/contactus
(BP-07-10-14)
This information is subject to change without notice.
© Keysight Technologies, 2013 - 2014
Published in USA, August 3, 2014
5989-4831EN
www.keysight.com
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