reproduced in any form or by any
means (including electronic storage
and retrieval or translation into a
foreign language) without prior agreement and written consent from
Keysight Technologies as governed by
United States and international
copyright laws.
Manual Part Number
U3900-90001
Edition
Edition 1, November 2020
Printed in:
Printed in Malaysia
Published by:
Keysight Technologies
Bayan Lepas Free Industrial Zone,
11900 Penang, Malaysia
Technology Licenses
The hardware and/or software
described in this document are
furnished under a license and may be
used or copied only in accordance
with the terms of such license.
Declaration of Conformity
Declarations of Conformity for this
product and for other Keysight
products may be downloaded from
the Web. Go to
http://www.keysight.com/go/conformity.
You can then search by product
number to find the latest Declaration
of Conformity.
U.S. Government Rights
The Software is “commercial computer
software,” as defined by Federal
Acquisition Regulation (“FAR”) 2.101.
Pursuant to FAR 12.212 and 27.405-3
and Department of Defense FAR
Supplement (“DFARS”) 227.7202, the
U.S. government acquires commercial
computer software under the same
terms by which the software is customarily provided to the public.
Accordingly, Keysight provides the
Software to U.S. government
customers under its standard
commercial license, which is
embodied in its End User License
Agreement (EULA), a copy of which can
be found at
http://www.keysight.com/find/sweula.
The license set forth in the EULA
represents the exclusive authority by
which the U.S. government may use,
modify, distribute, or disclose the
Software. The EULA and the license
set forth therein, does not require or
permit, among other things, that
Keysight:
(1) Furnish technical information
related to commercial computer
software or commercial computer
software documentation that is not
customarily provided to the public; or
(2) Relinquish to, or otherwise provide,
the government rights in excess of
these rights customarily provided to
the public to use, modify, reproduce,
release, perform, display, or disclose
commercial computer software or
commercial computer software
documentation. No additional
government requirements beyond
those set forth in the EULA shall
apply, except to the extent that those
terms, rights, or licenses are explicitly
required from all providers of
commercial computer software
pursuant to the FAR and the DFARS
and are set forth specifically in writing
else- where in the EULA. Keysight
shall be under no obligation to update,
revise or otherwise modify the
Software. With respect to any
technical data as defined by FAR
2.101, pursuant to FAR 12.211 and
27.404.2 and DFARS 227.7102, the
U.S. government acquires no greater
than Limited Rights as defined in FAR
27.401 or DFAR 227.7103-5 (c), as
applicable in any technical data.
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,”
AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO
THE MAXIMUM EXTENT PERMITTED
BY APPLICABLE LAW, KEYSIGHT
DISCLAIMS ALL WARRANTIES,
EITHER EXPRESS OR IMPLIED, WITH
REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUD ING BUT NOT
LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR
PURPOSE. KEYSIGHT SHALL NOT
BE LIABLE FOR ERRORS OR FOR
INCIDENTAL OR CONSEQUENTIAL
DAMAGES IN CONNECTION WITH
THE FURNISHING, USE, OR
PERFORMANCE OF THIS DOCUMENT OR OF ANY INFORMATION
CON- TAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A
SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS
COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH
THESE TERMS, THE WARRANTY
TERMS IN THE SEPARATE
AGREEMENT SHALL CONTROL.
Safety Information
CAUTION
A CAUTION notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in damage to the
product or loss of important data. Do
not proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.
WARNING
A WARNING notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that, if
not correctly performed or adhered
to, could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indicated
conditions are fully understood and
met.
Safety Symbols
The following symbols on the instrument and in the documentation indicate
precautions which must be taken to maintain safe operation of the instrument.
Caution, risk of danger (refer to this manual for
specific Warning or Caution information)
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 3
Safety Consideration
BEFORE APPLYING POWER
WARNING
Read the information below before using the instrument.
The following general safety precautions must be observed during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or with
specific warnings elsewhere in this manual violates safety standards of design,
manufacture, intended use of the instrument, and could result in electrical shock or injury.
Keysight Technologies assumes no liability for the customer's failure to comply with these
requirements.
Verify that all safety precautions are taken. Make all connections to the unit before
applying power.
GROUND THE INSTRUMENT
This product is provided with protective earth terminals. To minimize shock
hazard, the instrument must be connected to the ac power mains through a
grounded power cable, with the ground wire family connected to an electrical
ground (safety ground) at the protective (grounding) conductor. Disconnection of
the protective earth terminal will cause a potential shock hazard that could result
in personal injury.
BEFORE POWER ON AND OFF
Before powering on the instrument, make sure all signal sources connected to
modules are turned off. Turn on signal sources after the instrument is powered on.
Turn off signal sources before the instrument is powered off.
DO NOT REMOVE THE INSTRUMENT COVER
Only qualified, service-trained personnel who are aware of the hazards involved
should remove the instrument covers. Always disconnect the power cable and any
external circuits before removing the instrument cover.
MODULE COVERS
Always replace module covers after terminal wiring and before inserting into
mainframe.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
DO NOT MODIFY THE INSTRUMENT
Do not install substitute parts or perform any unauthorized modification to the
product. Return the product to a Keysight Sales and Service Office for service and
repair to ensure that safety features are maintained.
DO NOT MEASURE MORE THAN THE RATED VOLTAGE
Maximum voltage as marked on each module is as below:
a) DAQM901A, DAQM903A: 300 Vrms
b) DAQM905A: 42 Vpk
DO NOT CONNECT ANY MODULE CHANNELS TO MAINS
Measurement category of the instrument is rated as CAT 'Others', terminals
should not be directly connected to the mains.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 4
AC POWER CORD
Removal of the AC power cord is the disconnect method to remove power from
Connect USB cable with ferrite core to the rear panel USB port of the instrument.
Electrostatic discharge (ESD) can result in damage to the components at the
the instrument. Be sure to allow for adequate access to the power cord to permit
disconnection from AC power. Use only the Keysight specified power cord for the
country of use or one with equivalent ratings.
SELF-TEST
Before measuring any hazardous voltage or current, run the *TST? query from the
remote interface, and read the result to verify that the instrument is performing
properly. The *TST? query is a self-test that returns +0 if the instrument passes
and +1 if the instrument fails. You can also perform this query from the front panel
by pressing [Utility] > Self Test > Quick Test. If this self-test fails, make sure that
the instrument is repaired and passes the self-test before continuing.
This is a sensitive measurement apparatus by design and may have some
performance loss when exposed to ambient continuous electromagnetic
phenomenon. Measurement Considerations – use shielded or twisted cable, use
common mode choke, ferrite clamp and damping resistor before the input.
CLEANING
To prevent electrical shock, disconnect the instrument from AC mains power
before cleaning. Clean the outside of the instrument with a soft, lint-free, slightly
dampened cloth. Do not use detergent, volatile liquids, or chemical solvents. Do
not attempt to clean internally. If needed, contact a Keysight Technologies Sales
and Service Office to arrange for proper cleaning to ensure that safety features
and performance are maintained.
NOTE
CAUTION
exposed area of the educational kit. To prevent electrostatic discharge (ESD):
− Select a static-free work location when installing and removing sensitive
component.
− Handle sensitive components to the minimum extent possible with ESD safe
practices.
− Transport and store in ESD preventive bags or containers that protect
sensitive components from static electricity.
CAUTION
− If the instrument is used in a manner not specified by the manufacturer, the
instrument protection may be impaired.
− Always use a dry cloth to clean the instrument. Do not use ethyl alcohol or any
other volatile liquid.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 5
Safety Symbol and Regulatory Markings
Symbol Description
Alternating current (AC)
Protective earth (ground) terminal.
Earth (ground) terminal.
Caution, risk of danger (refer to the manual for specific Warning or
Caution information).
Frame or chassis (ground) terminal.
Instrument cable lock.
This product is marked with the ACMA RCM mark for compliance in
Australia/New Zealand. A copy of the Manufacturer's Australia
Declaration of Conformity for this instrument can be obtained by
contacting your local Keysight Technologies Sales Representative.
This symbol indicates the time period during which no hazardous or
toxic substance elements are expected to leak
or deteriorate during normal use. Forty years is the expected useful
life of the product.
The CSA mark is a registered trademark of the Canadian Standards
Association, with the 'C' and 'US' subscript
indicates the instrument is certified to the applicable Canadian and
United States of America standards respectively.
The CE mark is a registered trademark of the European Community.
This CE mark shows that the product complies
with all the relevant European Legal Directives.
ICES/NMB-001 - This ISM device complies with the Canadian ICES-
001.
Cet appareil ISM est conforme a la norme NMB-001 du Canada.
ISM GRP 1-A - This is an Industrial Scientific and Medical (ISM)
Group 1 Class A product.
This symbol is a South Korean Class A EMC Declaration, with the
product identification code
"R-REM-Kst-GM16412".
R - Identification of authorization prefix.
REM - Identification of basic certification information.
Kst - Identification of applicant's information
GM16412 - Product identification.
This is a Class A instrument suitable for professional use and in
electromagnetic environment outside of the home.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 6
The WARNING sign denotes a hazard. It calls attention to a
procedure, practice, or the like, which, if not correctly performed or
adhered to, could result in personal injury. Do not proceed beyond a
WARNING sign until the indicated
conditions are fully understood and met.
The CAUTION sign denotes a hazard. It calls attention to an operating
procedure, or the like, which, if not correctly performed or adhered
to, could result in damage to or destruction of part or all of the
product. Do not proceed beyond
CAUTION sign until the indicated conditions are fully understood and
met.
The NOTE sign denotes important information. It calls attention to a
procedure, practice, condition or the like, which is essential to
highlight. Safety and Regulatory Information 12
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 7
South Korean Class A EMC Declaration
Maximum transients on all inputs are limited to 1500 Vpk referenced to earth except for
Information to the user:
This instrument has been conformity assessed for used in business environments.
In a residential environment this equipment may caused radio interference.
This EMC statement applies to the equipment only for use in business
environment.
사용자안내문사용자안내문
이 기 기 는 업 무 용 환 경 에 서 사 용 할 목 적 으 로 적 합 성 평 가 를 받 은 기 기
로 서 가 정 용 환 경 에 서 사
용 하 는 경 우 전 파 간 섭 의 우 려 가 있 습 니 다 .
사용자 안내문은"업무용 방송통신기자재"에만 적용한다.
Safety and EMC Requirements
This instrument is designed to comply with the following safety and EMC
requirements:
DAQM905A which is 0 Vpk. Measurement is rated for CAT ‘none’, and terminals are not to be
connected directly to mains. Do not use this equipment to measure circuits where transient
overvoltages could exceed this level.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 8
Environmental Conditions and General Characteristics
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE OR WET ENVIRONMENTS
Keysight U3900DAQ Switching System Lab Solution is designed for indoor use and in an
area with low condensation. Tables below show the general environmental requirements
and general characteristics for this instrument.
Environmental condition Requirement
Operating condition
Temperature
Humidity
Altitude Up to 3000 m
Pollution degree 2
0 to 55 °C
Storage condition
-40 to 70 °C
Operating condition
Up to 80% RH at 40 °C (non-condensing), decreasing
linearly to 50% RH at 55 °C (non-condensing)
Storage condition:
Up to 50% RH at 55 °C (non-condensing)
The electrical (power) requirements of the DAQ970A/DAQ973A are summarized as below.
General characteristics Requirement
Power supply
Power line frequency 50/60/400 Hz
Power consumption 45 watts
WARNING
Do not operate the instrument around flammable gases or fumes, vapor, or wet
environments.
100 – 240 VAC (Mains supply voltage fluctuation is not
allowed to exceed ± 10%)
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 9
Sales and Technical Support
To contact Keysight for sales and technical support, refer to the support links
on the following Keysight websites:
– Product-specific information and support, software and documentation updates
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 11
Overview
Tools to Support Remote Teaching and Learning
U3900DAQ Switching System for Education Lab consist of the DAQ970 data acquisition system (DAQ), this
instrument enabling remote switching measurement point on a DUT (device under test), to provide a
complete hands-on learning for engineering students to measure different points in a training board circuit.
As a web-enabled Solution, it offers engineering solution to enable remote laboratory with simple and
flexible choices of GPIO switches and RF switch multiplexers.
Taking advantage of Keysight DAQ capabilities to link up student computers and the physical lab setup
over the internet which can immediately be deployed.
Intended Use of Getting Started Guide
The Getting Started Guide is intended for use by a University Teaching Lab Manager as a guide for
unpacking, set up, verification, and maintenance of the U3900DAQ Switching System.
Characteristics and Specifications
For more information about the key features and specifications, refer to the DAQ970A/DAQ973A Data
Acquisition System User’s Guide at https://literature.cdn.keysight.com/litweb/pdf/DAQ97-90000.pdf
The respective webpages for the modules are as follows:
– DAQ970A
– DAQM901A
– DAQM903A
– DAQM905A
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 12
Hardware Requirements
Keysight’s U3900DAQ Switching System consists of the following hardware:
– Including: U3900DAQ-AC1. Alpha 78025 1.5 m, five twisted pairs, OD 5.26mm, 24 AWG
For DAQM905A
– Including U3900DAQ-AC2.
– Description: SMA (M) Straight Plug to SMB Right Angle Plug on Flexible Cable RG-316/U
(1300 mm)
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 13
1 SMB(F) - SMA (F) (optional)
– KPN: U3810-31307
– Description: SMA (F) Bulkhead Jack to SMB Right Angle Plug on Flexible Cable RG-316/U
(1300 mm)
2 SMB (F) - SMB (F) (optional)
– KPN 8120-5028 (975mm)
– Description: SMB Right Angle (M) to SMB Right Angle (M) on Flexible Cable (975 mm)
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 14
Module Description
DAQM901A 20-Channel Armature Multiplexer Module
This module is divided into two banks of 10 two-wire channels each. Two additional fused channels
are available on the module (total in 22 channels) for making direct, calibrated DC or AC current
measurements with the internal DMM (external shunts resistors are not required). All 22 channels
switch both HI and LO inputs, thus providing fully isolated inputs to the internal DMM or an
external instrument. During the four-wire resistance measurements, channels from Bank A
(channel n) are automatically paired with channels from Bank B (channel n+10) to provide the
source and sense connections. The module has a built-in thermocouple reference junction to
minimize errors due to thermal gradients when measuring thermocouples.
This module contains 20 independent and SPDT (Form C) latching relays. This module can switch
300 V, 1 A (50 W maximum switch power) to your DUT or to actuate external devices. Screw
terminals on the module provide access to the Normally-Open, Normally-Closed, and Common
contacts for each of the 20 switches. This module does not connect to the internal DMM. Use this
module for those applications that require high-integrity contacts or quality connections of nonmultiplexed signals.
A breadboard area is provided near the screw terminals to implement custom circuitry, such as
simple filters, snubbers, and voltage dividers. The breadboard area provides the space necessary
to insert your own components but there are no circuit board traces here. You must add your own
circuitry and signal routing.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 15
DAQM901A and DAQM903A with Five Twisted Pair Cables
DAQM905A Dual 1:4 RF Multiplexer (50 Ω) Module
These modules consist of two independent banks of 4-to-1 multiplexers, which offer wideband
switching capabilities for high frequency and pulsed signals. The channels in each bank are
organized in a “tree” structure to provide high isolation and low VSWR. Both modules have a
common earth ground, offer low crosstalk and excellent insertion loss performance. To create
larger RF multiplexers, you can cascade multiple banks together.
This module does not connect to the internal DMM. You can connect your signals directly to the
on-board SMB connectors or to the SMB-to-BNC cables provided with the module or with specific
accessories based on the application.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 16
DAQM905A with SMB – SMA Coax Cable
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 17
Sample Application
Sample Application 1
Conventional End to End RF Transceiver Lab Task
This lab setup can flexibly be configured with DAQ905A RF multiplexer as web-enabled remote RF
lab task.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 18
Sample Application 2
Conventional Analog Signal Measurement Lab Task
Multiples jumpers / test points / switches can be replaced with DAQ solution.
Keysight U3900DAQ Switching System Lab Solution Getting Started Guide 19
This information is subject to change
KeysightU3900DAQ Switching System Lab SolutionGetting Started Guide20