Rohde & Schwarz R&S LCX200COM User manual

R&S®LCX Series
LCR Meter
User Manual
1179226002
Version 04
(;ÝFÊ2)
Ihr Ansprechpartner /
Your Partner:
dataTec AG
E-Mail: [email protected]
>>> www.datatec.eu

This manual describes the instruments of the R&S®LCX Series, including options and measurement
accessories:
●R&S®LCX100 LCR Meter(3629.8856.02)
●R&S®LCX200 LCR Meter (3629.8856.03)
●R&S®NG-B105 Option IEE 488 (GPIB) interface (5601.6000.02)
●R&S®LCX-K106 Option advanced analysis (3630.1922.03)
●R&S®LCX-K107 Option digital I/O ports and binning (3660.7741.03)
●R&S®LCX-K108 Option extended bias (3692.9791.03)
●R&S®LCX-K201 Option frequency upgrade 1 MHz (3630.1880..03)
●R&S®LCX-K210 Option frequency upgrade 10 MHz (3630.1900.03)
●R&S®LCX-Z1 Accessory test fixture for axial/radial lead type components (3639.2296.02)
●R&S®LCX-Z2 Accessory Kelvin clip lead (3638.6446.02)
●R&S®LCX-Z3 Accessory test fixture for SMD components (3639.2509.02)
●R&S®LCX-Z4 Accessory test tweezers for SMD components (3639.2515.02)
●R&S®LCX-Z5 Accessory transformer test cables (3639.2521.02)
●R&S®LCX-Z11 Accessory BNC-to-BNC extension (1m) (3639.2538.02)
© 2023 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: [phone] - 0
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
All other trademarks are the properties of their respective owners.
1179.2260.02 | Version 04 | R&S®LCX Series
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, and the instruments of the R&S®LCX
series are abbreviated as R&S LCX. For example, R&S®LCX200 is indicated as R&S LCX.

Contents
R&S®LCX Series
3User Manual 1179.2260.02 ─ 04
Contents
1 Safety and regulatory information........................................................9
1.1 Safety instructions........................................................................................................9
1.2 Labels on the R&S LCX.............................................................................................. 11
1.3 Warning messages in the documentation................................................................ 12
1.4 Korea certification class A......................................................................................... 12
2 Welcome............................................................................................... 13
2.1 Key features.................................................................................................................13
3 Documentation overview.....................................................................14
3.1 Getting started manual............................................................................................... 14
3.2 User manual.................................................................................................................14
3.3 Tutorials....................................................................................................................... 14
3.4 Service manual............................................................................................................14
3.5 Instrument security procedures................................................................................ 14
3.6 Printed safety instructions.........................................................................................15
3.7 Data sheets and brochures........................................................................................ 15
3.8 Release notes and open-source acknowledgment (OSA).......................................15
3.9 Application notes, application cards, white papers, etc......................................... 15
3.10 Remote control driver.................................................................................................15
4 Getting started......................................................................................16
4.1 Preparing for use........................................................................................................ 16
4.1.1 Lifting and carrying........................................................................................................16
4.1.2 Unpacking and checking............................................................................................... 16
4.1.3 Choosing the operating site.......................................................................................... 16
4.1.4 Setting up the R&S LCX................................................................................................17
4.1.5 Considerations for test setup........................................................................................ 18
4.1.6 Connecting to power..................................................................................................... 19
4.1.7 Connecting to LAN........................................................................................................ 21
4.1.8 Connecting USB devices.............................................................................................. 22
4.1.9 Connecting a test fixture............................................................................................... 23
4.1.10 Switching on or off.........................................................................................................25

Contents
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4User Manual 1179.2260.02 ─ 04
4.2 Instrument tour............................................................................................................25
4.2.1 Front panel tour.............................................................................................................26
4.2.2 Rear panel tour............................................................................................................. 29
4.3 Trying out the instrument...........................................................................................32
4.4 Instrument control...................................................................................................... 35
4.4.1 Ways to operate the instrument.................................................................................... 35
4.4.2 Means of manual interaction......................................................................................... 35
4.4.3 Remote control..............................................................................................................46
5 Measurement basics............................................................................47
5.1 Impedance measurement parameters in general.....................................................47
5.2 Impedance measurement parameters of the R&S LCX........................................... 48
5.3 Considerations on measurement accuracy..............................................................50
6 Measurement setups........................................................................... 52
6.1 About test fixtures...................................................................................................... 52
6.1.1 Test fixture for axial/radial lead type components......................................................... 52
6.1.2 Kelvin clip lead.............................................................................................................. 53
6.1.3 Test fixture for SMD components.................................................................................. 54
6.1.4 Test tweezers for SMD components............................................................................. 54
6.1.5 Test fixture with cables for transformer components.....................................................55
6.1.6 BNC-to-BNC extension................................................................................................. 56
6.2 Configuring the test signal.........................................................................................57
6.3 Configuring BIAS........................................................................................................ 59
6.3.1 Internal bias voltage...................................................................................................... 59
6.3.2 External voltage bias.....................................................................................................60
6.3.3 Current bias...................................................................................................................61
7 Performing measurements..................................................................63
8 Instrument functions........................................................................... 68
8.1 Measurement mode.................................................................................................... 68
8.1.1 Measurement mode settings.........................................................................................68
8.1.2 Working with the measurement modes.........................................................................69
8.2 Display mode...............................................................................................................70
8.2.1 Display mode settings................................................................................................... 70

Contents
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8.2.2 Configuring the main view.............................................................................................71
8.3 Measurement functions..............................................................................................72
8.4 Test signal functions...................................................................................................72
8.4.1 Test signal settings........................................................................................................72
8.5 Measurement control functions.................................................................................74
8.6 Measurement parameters...........................................................................................74
8.6.1 Measurement parameter settings................................................................................. 76
8.6.2 Open/short/load correction settings.............................................................................. 79
8.6.3 Setting measurement parameters.................................................................................82
8.7 Configuration preset...................................................................................................85
8.7.1 Configuration preset settings........................................................................................ 86
8.7.2 Using the configuration preset function.........................................................................87
8.8 Specific instrument functions....................................................................................88
8.8.1 Live chart viewer........................................................................................................... 88
8.8.2 Logging chart viewer..................................................................................................... 91
8.8.3 Logging......................................................................................................................... 96
8.8.4 Dynamic impedance measurement.............................................................................100
8.8.5 Binning........................................................................................................................ 104
9 General instrument settings..............................................................113
9.1 File and data management....................................................................................... 114
9.1.1 File manager settings.................................................................................................. 115
9.1.2 Using the file manager.................................................................................................116
9.1.3 Data and file types.......................................................................................................118
9.2 Interfaces................................................................................................................... 118
9.2.1 Interface settings......................................................................................................... 119
9.2.2 Configuring interfaces................................................................................................. 120
9.3 User button................................................................................................................ 120
9.3.1 User button settings.................................................................................................... 120
9.3.2 Using the user button function.................................................................................... 121
9.4 Screenshot.................................................................................................................121
9.4.1 Screenshot settings.....................................................................................................122
9.4.2 Using the screenshot function.....................................................................................122
9.5 CSV settings.............................................................................................................. 124

Contents
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6User Manual 1179.2260.02 ─ 04
9.5.1 Settings for CSV data..................................................................................................124
9.5.2 Configuring CSV data................................................................................................. 125
9.6 Date & time................................................................................................................ 125
9.7 Appearance................................................................................................................126
9.8 Sound......................................................................................................................... 127
9.9 Licenses.....................................................................................................................128
9.9.1 Licenses settings.........................................................................................................128
9.9.2 Managing licenses...................................................................................................... 129
9.10 Device information....................................................................................................131
9.10.1 Device information settings......................................................................................... 131
9.10.2 Using the dump file function........................................................................................132
9.11 Update device............................................................................................................133
9.11.1 Update device settings................................................................................................133
9.11.2 Updating the instrument software............................................................................... 134
9.12 Save/recall................................................................................................................. 135
9.12.1 Save/recall settings..................................................................................................... 135
9.12.2 Using the save/recall function..................................................................................... 136
9.13 Customizing general instrument settings.............................................................. 138
10 Network operation and remote control............................................ 142
10.1 Overview of remote access modes......................................................................... 143
10.2 Remote control interfaces and protocols............................................................... 144
10.2.1 LAN interface.............................................................................................................. 145
10.2.2 USB interface.............................................................................................................. 147
10.2.3 GPIB interface (IEC/IEEE bus interface).....................................................................148
10.2.4 Status reporting system.............................................................................................. 149
10.3 Remote access settings........................................................................................... 152
10.3.1 Network settings..........................................................................................................152
10.3.2 LAN settings................................................................................................................154
10.3.3 VNC settings............................................................................................................... 156
10.3.4 FTP settings................................................................................................................ 157
10.3.5 USB settings............................................................................................................... 159
10.3.6 GPIB settings.............................................................................................................. 160
10.4 Connecting the R&S LCX for remote access......................................................... 160

Contents
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10.5 Adjusting interface addresses.................................................................................162
10.6 Operating the R&S LCX remotely............................................................................ 166
10.6.1 Controlling the R&S LCX over LAN.............................................................................167
10.6.2 Accessing the file system of the R&S LCX using FTP................................................ 170
11 Remote control commands...............................................................174
11.1 Conventions used in SCPI command description................................................. 174
11.2 Programming examples........................................................................................... 175
11.3 Common commands.................................................................................................175
11.4 Test signal commands..............................................................................................178
11.5 BIAS subsystem........................................................................................................181
11.6 CORRection subsystem........................................................................................... 183
11.7 DATA subsystem....................................................................................................... 188
11.8 DIMeasure subsystem.............................................................................................. 189
11.9 DISPLay subsystem..................................................................................................193
11.10 FUNCtion subsystem................................................................................................195
11.11 HANDler subsystem..................................................................................................199
11.12 HCOPy subsystem.................................................................................................... 201
11.13 LOG subsystem.........................................................................................................203
11.14 Measurement commands......................................................................................... 207
11.15 STATus subsystem....................................................................................................211
11.15.1 Status operation register............................................................................................. 211
11.15.2 Status questionable register........................................................................................213
11.16 SYSTem subsystem.................................................................................................. 214
12 Troubleshooting................................................................................. 225
12.1 Displaying status information..................................................................................225
12.2 Problems during firmware update...........................................................................225
12.3 Cannot establish a LAN connection........................................................................226
12.4 Contacting customer support..................................................................................226
13 Transporting....................................................................................... 227
14 Maintenance, storage and disposal................................................. 228
14.1 Cleaning..................................................................................................................... 228
14.2 Changing fuses......................................................................................................... 228

Contents
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8User Manual 1179.2260.02 ─ 04
14.3 Storage.......................................................................................................................228
14.4 Disposal..................................................................................................................... 228
Glossary: List of the often used terms and abbreviations.............230
List of commands.............................................................................. 233
Index....................................................................................................236

Safety and regulatory information
R&S®LCX Series
9User Manual 1179.2260.02 ─ 04
1 Safety and regulatory information
The product documentation helps you use the product safely and efficiently. Follow the
instructions provided here and in the following chapters.
Intended use
The product is intended for the development, production and verification of electronic
components and devices in industrial, administrative, and laboratory environments.
Use the product only for its designated purpose. Observe the operating conditions and
performance limits stated in the data sheet.
Where do I find safety information?
Safety information is part of the product documentation. It warns you of potential dan-
gers and gives instructions on how to prevent personal injury or damage caused by
dangerous situations. Safety information is provided as follows:
●In Chapter 1.1, "Safety instructions", on page 9. The same information is provi-
ded in many languages as printed "Safety Instructions". The printed "Safety
Instructions" are delivered with the product.
●Throughout the documentation, safety instructions are provided when you need to
take care during setup or operation.
1.1 Safety instructions
Products from the Rohde & Schwarz group of companies are manufactured according
to the highest technical standards. To use the products safely, follow the instructions
provided here and in the product documentation. Keep the product documentation
nearby and offer it to other users.
Use the product only for its intended use and within its performance limits. Intended
use and limits are described in the product documentation such as the data sheet,
manuals and the printed "Safety Instructions". If you are unsure about the appropriate
use, contact Rohde & Schwarz customer service.
Using the product requires specialists or specially trained personnel. These users also
need sound knowledge of at least one of the languages in which the user interfaces
and the product documentation are available.
Reconfigure or adjust the product only as described in the product documentation or
the data sheet. Any other modifications can affect safety and are not permitted.
Never open the casing of the product. Only service personnel authorized by
Rohde & Schwarz are allowed to repair the product. If any part of the product is dam-
aged or broken, stop using the product. Contact Rohde & Schwarz customer service at
https://www.rohde-schwarz.com/support.
Safety instructions

Safety and regulatory information
R&S®LCX Series
10User Manual 1179.2260.02 ─ 04
Lifting and carrying the product
The maximum weight of the product is provided in the data sheet. You can lift or carry
the product by yourself, if you can manage the weight on your own. Alternatively, you
can use lifting or transporting equipment. Follow the instructions provided by the equip-
ment manufacturer.
Choosing the operating site
Only use the product indoors. The product casing is not waterproof. Water that enters
can electrically connect the casing with live parts, which can lead to electric shock,
serious personal injury or death if you touch the casing. If Rohde & Schwarz provides
accessories designed for your product, e.g. a carrying bag, you can use the product
outdoors.
Unless otherwise specified, you can operate the product up to an altitude of 2000 m
above sea level. The product is suitable for pollution degree 2 environments where
nonconductive contamination can occur. For more information on environmental condi-
tions such as ambient temperature and humidity, see the data sheet.
Setting up the product
Always place the product on a stable, flat and level surface with the bottom of the prod-
uct facing down. If the product is designed for different positions, secure the product so
that it cannot fall over.
If the product has foldable feet, always fold the feet completely in or out to ensure sta-
bility. The feet can collapse if they are not folded out completely or if the product is
moved without lifting it. The foldable feet are designed to carry the weight of the prod-
uct, but not an extra load.
If stacking is possible, keep in mind that a stack of products can fall over and cause
injury.
If you mount products in a rack, ensure that the rack has sufficient load capacity and
stability. Observe the specifications of the rack manufacturer. Always install the prod-
ucts from the bottom shelf to the top shelf so that the rack stands securely. Secure the
product so that it cannot fall off the rack.
Connecting to power
The product is an overvoltage category II product. Connect the product to a fixed
installation used to supply energy-consuming equipment such as household applian-
ces and similar loads. Keep in mind that electrically powered products have risks, such
as electric shock, fire, personal injury or even death. Replace parts that are relevant to
safety only by original parts, e.g. power cables or fuses.
Take the following measures for your safety:
●Before switching on the product, ensure that the voltage and frequency indicated
on the product match the available power source. If the power adapter does not
adjust automatically, set the correct value and check the rating of the fuse.
●If a product has an exchangeable fuse, its type and characteristics are indicated
next to the fuse holder. Before changing the fuse, switch off the product and dis-
Safety instructions

Safety and regulatory information
R&S®LCX Series
11User Manual 1179.2260.02 ─ 04
connect it from the power source. How to change the fuse is described in the prod-
uct documentation.
●Only use the power cable delivered with the product. It complies with country-spe-
cific safety requirements. Only insert the plug into an outlet with protective conduc-
tor terminal.
●Only use intact cables and route them carefully so that they cannot be damaged.
Check the power cables regularly to ensure that they are undamaged. Also ensure
that nobody can trip over loose cables.
●If you connect the product to an external power supply, use the one delivered with
the product or recommended in the product documentation. The external power
supply must conform to the country-specific regulations.
●Only connect the product to a power source with a fuse protection of maximum
20 A.
●Ensure that you can disconnect the product from the power source at any time.
Pull the power plug to disconnect the product. The power plug must be easily
accessible. If the product is integrated into a system that does not meet these
requirements, provide an easily accessible circuit breaker at the system level.
Cleaning the product
Use a dry, lint-free cloth to clean the product. When cleaning, keep in mind that the
casing is not waterproof. Do not use liquid cleaning agents.
Meaning of safety labels
Safety labels on the product warn against potential hazards.
Potential hazard
Read the product documentation to avoid personal injury or product damage.
Electrical hazard
Indicates live parts. Risk of electric shock, fire, personal injury or even death.
Hot surface
Do not touch. Risk of skin burns. Risk of fire.
Protective conductor terminal
Connect this terminal to a grounded external conductor or to protective ground. This connec-
tion protects you against electric shock if an electric problem occurs.
1.2 Labels on the R&S LCX
Labels on the casing inform about:
●Personal safety, see "Meaning of safety labels" on page 11.
●Product and environment safety, see Table 1-1.
Labels on the R&S LCX

Safety and regulatory information
R&S®LCX Series
12User Manual 1179.2260.02 ─ 04
Table 1-1: Labels regarding R&S
LCX and environment safety
Labeling in line with EN 50419 for disposal of electrical and electronic equipment after the prod-
uct has come to the end of its service life. For more information, see "Disposing electrical and
electronic equipment" on page 229.
Grounding connection
Chassis grounding connection
Noiseless ground.
The input signal at these connectors must be free from external voltages. The measurement
results are otherwise incorrect.
1.3 Warning messages in the documentation
A warning message points out a risk or danger that you need to be aware of. The sig-
nal word indicates the severity of the safety hazard and how likely it will occur if you do
not follow the safety precautions.
WARNING
Potentially hazardous situation. Could result in death or serious injury if not avoided.
CAUTION
Potentially hazardous situation. Could result in minor or moderate injury if not avoided.
NOTICE
Potential risks of damage. Could result in damage to the supported product or to other
property.
1.4 Korea certification class A
이 기기는 업무용(A급) 전자파 적합기기로서 판매자 또는 사용자는 이 점을 주의하시기
바라며, 가정외의 지역에서 사용하는 것을 목적으로 합니다.
Korea certification class A

Welcome
R&S®LCX Series
13User Manual 1179.2260.02 ─ 04
2 Welcome
2.1 Key features
The R&S LCX LCR Meter sets standards in analyzing passive components. It provides
the full range of measurements to characterize resistors, capacitors and inductors, and
displays results as absolute, relative or average values.
Outstanding key features are:
●Frequency range: 4 kHz to 300 kHz (R&S LCX100), and up to 10 MHz
(R&S LCX200)
●Measurement functions: L, C, R, |Z|, X, |Y|, G, B, D, Q, Φ, ∆, M, N
●Basic accuracy: 0.05 %
●Continuous, manual or external control via interface, binning interface or trigger
●Digital I/O ports and binning function for automatic sorting of components (option
R&S LCX-K107)
●LAN, USB interface for remote control, optionally IEEE-488 (GPIB) bus interface
(option R&S NG-B105)
For details on the specification, see the data sheet.
Key features

Documentation overview
R&S®LCX Series
14User Manual 1179.2260.02 ─ 04
3 Documentation overview
This section provides an overview of the R&S LCX user documentation. Unless speci-
fied otherwise, you find the documents at:
www.rohde-schwarz.com/manual/lcx
3.1 Getting started manual
Introduces the R&S LCX and describes how to set up and start working with the prod-
uct. Includes basic operations, typical measurement examples, and general informa-
tion, e.g. safety instructions, etc. A printed version is delivered with the instrument.
3.2 User manual
The user manual contains the description of all instrument modes and functions. It also
provides an introduction to remote control, a complete description of the remote control
commands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
The user manual is also available for download or for immediate display on the Inter-
net.
3.3 Tutorials
Tutorials offer guided examples and demonstrations on operating the R&S LCX. They
are provided on the product page of the internet.
3.4 Service manual
Describes the performance test for checking compliance with rated specifications, firm-
ware update and maintenance.
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS): https://gloris.rohde-schwarz.com
3.5 Instrument security procedures
Deals with security issues when working with the R&S LCX in secure areas. It is avail-
able for download on the internet.
Instrument security procedures

Documentation overview
R&S®LCX Series
15User Manual 1179.2260.02 ─ 04
3.6 Printed safety instructions
Provides safety information in many languages. The printed document is delivered with
the product.
3.7 Data sheets and brochures
The data sheet contains the technical specifications of the R&S LCX. It also lists the
firmware applications and their order numbers, and optional accessories.
The brochure provides an overview of the instrument and deals with the specific char-
acteristics.
See www.rohde-schwarz.com/brochure-datasheet/lcx
3.8 Release notes and open-source acknowledgment
(OSA)
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation.
The software makes use of several valuable open source software packages. An open-
source acknowledgment document provides verbatim license texts of the used open
source software.
See www.rohde-schwarz.com/firmware/lcx
3.9 Application notes, application cards, white papers,
etc.
These documents deal with special applications or background information on particu-
lar topics.
See www.rohde-schwarz.com/application/lcx
3.10 Remote control driver
The instrument drivers enable remote control via the corresponding interfaces. The
drivers and installation instructions are available for download on the product page at
www.rohde-schwarz.com/driver/lcx.
Remote control driver

Getting started
R&S®LCX Series
16User Manual 1179.2260.02 ─ 04
4 Getting started
This chapter contains the same information as the getting started manual.
4.1 Preparing for use
Here, you can find basic information about setting up the product for the first time.
4.1.1 Lifting and carrying
See "Lifting and carrying the product" on page 10.
4.1.2 Unpacking and checking
1. Unpack the R&S LCX carefully.
2. Retain the original packing material. Use it when transporting or shipping the
R&S LCX later.
3. Using the delivery notes, check the equipment for completeness.
4. Check the equipment for damage.
If the delivery is incomplete or equipment is damaged, contact Rohde & Schwarz.
See also: Chapter 13, "Transporting", on page 227.
4.1.3 Choosing the operating site
Specific operating conditions ensure proper operation and avoid damage to the prod-
uct and connected devices. For information on environmental conditions such as ambi-
ent temperature and humidity, see the data sheet.
See also "Choosing the operating site" on page 10.
Electromagnetic compatibility classes
The electromagnetic compatibility (EMC) class indicates where you can operate the
product. The EMC class of the product is given in the data sheet.
●Class B equipment is suitable for use in:
– Residential environments
– Environments that are directly connected to a low-voltage supply network that
supplies residential buildings
Preparing for use

Getting started
R&S®LCX Series
17User Manual 1179.2260.02 ─ 04
●Class A equipment is intended for use in industrial environments. It can cause
radio disturbances in residential environments due to possible conducted and radi-
ated disturbances. It is therefore not suitable for class B environments.
If class A equipment causes radio disturbances, take appropriate measures to
eliminate them.
4.1.4 Setting up the R&S LCX
See also:
●"Setting up the product" on page 10
●"Intended use" on page 9
4.1.4.1 Placing the R&S LCX on a bench top
To place the product on a bench top
1. Place the product on a stable, flat and level surface. Ensure that the surface can
support the weight of the product. For information on the weight, see the data
sheet.
2. CAUTION! Foldable feet can collapse. See "Setting up the product" on page 10.
Always fold the feet completely in or out. With folded-out feet, do not place any-
thing on top or underneath the product.
3. WARNING! A stack of products can fall over and cause injury. Never stack more
than three products on top of each other. Instead, mount them in a rack.
Stack as follows:
● If the products have foldable feet, fold them in completely.
● All products must have the same dimensions (width and length).
● Do not exceed a total load of 50 kg placed on the product at the bottom of the
stack.
Left = Stacked correctly
Middle left = Stacked incorrectly, too many products
Middle right = Stacked incorrectly, different dimensions
Right = Stacked incorrectly, folded-out feet
4. NOTICE! Overheating can damage the product.
Prevent overheating as follows:
Preparing for use

Getting started
R&S®LCX Series
18User Manual 1179.2260.02 ─ 04
●Keep a minimum distance of 10 cm between the fan openings of the product
and any object in the vicinity to provide sufficient airflow and ventilation.
●Do not place the product next to heat-generating equipment such as radiators
or other products.
4.1.4.2 Mounting the R&S LCX in a rack
To prepare the rack
1. Observe the requirements and instructions in "Setting up the product" on page 10.
2. NOTICE! Insufficient airflow can cause overheating and damage the product.
Design and implement an efficient ventilation concept for the rack.
Mounting the R&S LCX in a rack
To mount the R&S LCX in a rack:
1. Use an adapter kit that fits the dimensions of the R&S LCX to prepare the
R&S LCX for rack mounting.
a) Order the rack adapter kit designed for the R&S LCX. For the order number,
see the data sheet.
b) Mount the adapter kit. Follow the assembly instructions provided with the
adapter kit.
2. Lift the R&S LCX to shelf height.
3. Push the R&S LCX onto the shelf until the rack brackets fit closely to the rack.
4. Tighten all screws at the rack brackets with a tightening torque of 1.2 Nm to secure
the R&S LCX at the rack.
Unmounting the R&S LCX from a rack
To unmount the R&S LCX from a rack:
1. Loosen the screws at the rack brackets.
2. Bring the lifting equipment to shelf height.
3. Remove the R&S LCX from the rack.
4. If placing the R&S LCX on a bench top again, unmount the adapter kit from the
R&S LCX. Follow the instructions provided with the adapter kit.
4.1.5 Considerations for test setup
Cable selection and electromagnetic interference (EMI)
Electromagnetic interference (EMI) can affect the measurement results.
Preparing for use

Getting started
R&S®LCX Series
19User Manual 1179.2260.02 ─ 04
To suppress electromagnetic radiation during operation:
●Use high-quality shielded cables, especially for the following connector types:
– Connectors for external devices
Double-shielded data cables. The length of data cables must not exceed 3 m.
– Connectors for signal transmission
Shielded coaxial cables. The length of signal cables must not exceed 1 m.
We recommend that you use the R&S LCX-Z11 BNC-to-BNC extension (1 m)
from Rohde & Schwarz.
– BNC
Double-shielded BNC cables.
– USB
Double-shielded USB cables. The length of passive USB cables must not
exceed 1 m.
– LAN
At least CAT6+ cables
– IEEE-488 (GPIB)
Double-shielded cables. We recommend that you use the double-shielded
cable "R&S HZ72" from Rohde & Schwarz.
●Always terminate open cable ends.
●Ensure that connected external devices comply with EMC regulations.
Signal input and output levels
Information on signal levels is provided in the data sheet. Keep the signal levels within
the specified ranges to avoid damage to the product and connected devices.
4.1.6 Connecting to power
For safety information, see "Connecting to power" on page 10.
When using the R&S LCX the first time, you can skip Replacing the external bias fuse
and Replacing the line fuse.
If there are any problems during power-on or malfunction of the bias, check the condi-
tion of the mains fuse. Also check the fuse for the external bias input as described in
these instructions. They explain how to check and change the protective fuses, if nec-
essary.
Replacing the external bias fuse
The bias voltage input of the R&S LCX is protected by a fuse of type IEC 60127-2/5-
F0.5L/250V (order no. 0009.5463.00). The externally accessible fuse is at the rear
panel.
To check and exchange the external bias fuse:
1. NOTICE! Risk of instrument damage. Malfunction of the fuse that protects the bias
voltage input from overload can damage the circuitry of the instrument.
Preparing for use

Getting started
R&S®LCX Series
20User Manual 1179.2260.02 ─ 04
Do not use either fuse type other than specified, nor a defective fuse, and never
short-circuit the fuse.
Make sure that you have disconnected the R&S LCX from the mains.
2. Check the condition of the external bias fuse.
3. If necessary, install the fuse type required for the external bias voltage.
a) Unscrew the fuse holder with a suitable screwdriver.
b) Pull out the fuse holder.
c) Replace the fuse by a fuse of the specified type.
d) Insert the fuse holder into the external bias inlet.
When inserting the fuse holder, press it slightly and tighten it.
Replacing the line fuse
The product is protected by one fuse of type IEC 60127-2/5-T2.0H/250V
(order no. 0020.7546.00). The externally accessible fuse is part of the IEC socket of
the power supply at the rear panel.
To exchange the line fuse:
1. Check the available supply voltage.
The mains voltage must be within the voltage range as denoted on the instrument.
The label is at the rear panel, on the left of the "AC power" connector and power
switch.
The power supply module covers a wide power supply range and normally does
not require adjustment.
2. If the power supply exceeds the permissible range, contact Rohde & Schwarz cus-
tomer service.
3. WARNING! The fuse is part of the main power supply. Handling the fuse while the
power is on can lead to electric shock.
If necessary, exchange the fuse required for the supply voltage.
4. Before changing the fuse:
a) Set the switch on the power supply to position [0].
b) Disconnect the R&S LCX from the power source.
5. Replace the line fuse.
a) Unplug the power cable.
b) Press the plastic lock on the bottom of the fuse holder inwards using a screw-
driver (with a blade width of approximately 2 mm).
A narrow guide on the bottom of the fuse holder denotes the insertion point.
When unlocking the mechanism, compression springs automatically push the
fuse holder outwards.
c) Pull out the fuse holder.
d) Check the condition of the fuse.
Preparing for use