Page 1
R&S®NRP Series
Power Sensors
Getting Started
(>C1Ô2)
1419017002
Version 10
Getting Started
Page 2
This manual gives an introduction to the R&S®NRP series power sensors:
●
R&S®NRPxxA(N) average power sensors
●
R&S®NRPxxS(N) three-path diode power sensors
●
R&S®NRP18S-xx high-power three-path diode power sensors
●
R&S®NRPxxT(N) thermal power sensors
●
R&S®NRPxxTWG thermal waveguide power sensors
The software contained in this product uses several valuable open source software packages. For information, see the "Open
Source Acknowledgment" on the user documentation CD-ROM (included in delivery).
Rohde & Schwarz would like to thank the open source community for their valuable contribution to embedded computing.
© 2018 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Fax: +49 89 41 29 12 164
Email: info@rohde-schwarz.com
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.
Trade names are trademarks of the owners.
1419.0170.02 | Version 10 | R&S®NRP Series
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, for example R&S®NRX is abbreviated
as R&S NRX.
Page 3
1
Safety Instructions
Risk of injury and instrument damage
The instrument must be used in an appropriate manner to prevent
electric shock, fire,
●
●
●
●
Keep the "Basic Safety Instructions" and the product documentation
Riesgo de lesiones y daños en el instrumento
El instrumento se debe usar de manera adecuada para p
descargas eléctricas, incendios, lesiones o daños materiales.
●
●
●
especificaciones técnicas pueden contener condiciones adicionales
●
Instrucciones de seguridad
Sicherheitshinweise
Consignes de sécurité
personal injury or instrument damage.
Do not open the instrument casing.
Read and observe the "Basic Sa fety Instructions" delivered as
printed brochure with the instrument.
Read and observe the safety instructions in the following sections.
Note that the data sheet may specify additional operating conditions.
in a safe place and pass them on to the subsequent users.
No abrir la carcasa del instrumento.
Lea y cumpla las "Instrucciones de seguridad elementales"
suministradas con el instrumento como folleto impreso.
Lea y cumpla las instrucciones de seguridad incluidas en las
siguientes secciones. Se debe tener en cuenta que las
para su uso.
Guarde bien las instrucciones de seguridad elementales, así como
la documentación del producto, y entréguelas a usuarios
posteriores.
revenir
1171.1307.42 - 05
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2
Gefahr von Verletzungen und Schäden am Gerät
Betreiben Sie das Gerät immer ordnungsgemäß, um elektrischen
Schlag, Brand, Verletzungen von Personen oder Geräteschäden zu
verhindern.
●
●
●
●
Risque de blessures et d'endommagement de l'appareil
L'ap
les électrocutions, incendies, dommages corporels et matériels.
●
●
●
suivantes. Il ne faut pas oublier que la fiche technique peut indiquer
●
Öffnen Sie das Gerätegehäuse nicht.
Lesen und beachten Sie die "Grundlegenden Sicherheitshinweise",
die als gedruckte Broschüre dem Gerät beiliegen.
Lesen und beachten Sie die Sicherheitshinweise in den folgenden
Abschnitten; möglicherweise enthält das Datenblatt weitere
Hinweise zu speziellen Betriebsbedingungen.
Bewahren Sie die "Grundlegenden Sicherheitshinweise" und die
Produktdokumentation gut auf und geben Sie diese an weitere
Benutzer des Produkts weiter.
pareil doit être utilisé conformément aux prescriptions afin d'éviter
N'ouvrez pas le boîtier de l'appareil.
Lisez et respectez les "consignes de sécurité fondamentales"
fournies avec l’app ar eil sous forme de brochure imprimée.
Lisez et respectez les instructions de sécurité dans les sections
des conditions d’exploitation supplémentaires.
Gardez les consignes de sécurité fondamentales et la
documentation produit dans un lieu sûr et transmettez ces
documents aux autres utilisateurs.
1171.1307.42 - 05
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R&S®NRP Series
1 Documentation Overview......................................................................5
1.1 Getting Started Manual.................................................................................................5
1.2 User Manuals.................................................................................................................5
1.3 Tutorials......................................................................................................................... 5
1.4 Instrument Security Procedures..................................................................................5
1.5 Basic Safety Instructions............................................................................................. 6
1.6 Data Sheets and Brochures......................................................................................... 6
1.7 Release Notes and Open Source Acknowledgment (OSA).......................................6
1.8 Application Notes, Application Cards, White Papers, etc.........................................6
2 For Your Safety.......................................................................................8
Contents
Contents
3 Key Features...........................................................................................9
4 Preparing for Use.................................................................................10
4.1 Unpacking and Checking the Power Sensor............................................................10
4.2 Operating Conditions................................................................................................. 10
4.3 Important Aspects for Test Setup.............................................................................. 11
4.4 Connecting to a DUT...................................................................................................11
4.5 Connecting to a Computer......................................................................................... 12
4.5.1 Setting Up a USB Connection.......................................................................................13
4.5.2 Setting Up a LAN Connection....................................................................................... 15
4.6 Connecting to a USB Host......................................................................................... 21
5 R&S NRP Power Sensors Tour........................................................... 22
5.1 RF Connector.............................................................................................................. 22
5.2 Trigger I/O Connector................................................................................................. 24
5.3 Host Interface.............................................................................................................. 24
5.4 Status LED................................................................................................................... 25
5.5 LAN PoE Interface.......................................................................................................25
6 Operating Concepts.............................................................................27
6.1 R&S NRP Toolkit..........................................................................................................27
6.1.1 Versions and Downloads...............................................................................................27
6.1.2 System Requirements...................................................................................................27
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R&S®NRP Series
6.1.3 R&S NRP Toolkit for Windows...................................................................................... 28
6.2 Browser-Based User Interface...................................................................................30
6.3 Remote Control........................................................................................................... 32
6.4 R&S NRPV....................................................................................................................32
6.5 R&S Power Viewer...................................................................................................... 34
6.6 R&S Power Viewer Mobile..........................................................................................37
6.7 R&S NRX...................................................................................................................... 37
6.8 R&S NRP2.................................................................................................................... 38
7 Remote Control Interfaces and Protocols......................................... 41
7.1 USB Interface...............................................................................................................41
7.2 Ethernet Interface........................................................................................................43
7.2.1 VISA Resource Strings................................................................................................. 44
Contents
7.2.2 VXI-11 Protocol............................................................................................................. 45
7.2.3 HiSLIP Protocol.............................................................................................................45
7.2.4 Socket Communication................................................................................................. 46
Index......................................................................................................47
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R&S®NRP Series
1 Documentation Overview
1.1 Getting Started Manual
Documentation Overview
Instrument Security Procedures
This section provides an overview of the R&S NRP series power sensor user documentation. Unless specified otherwise, you find the documents on the R&S NRP series
power sensor product page at:
www.rohde-schwarz.com/product/nrp-a-an
www.rohde-schwarz.com/product/nrp_s_sn
www.rohde-schwarz.com/product/nrp18s
www.rohde-schwarz.com/product/nrp-t-tn
www.rohde-schwarz.com/product/nrp-twg
Introduces the R&S NRP series power sensor and describes how to set up and start
working with the product. Includes basic operations and general information, e.g.
safety instructions, etc. A printed version is delivered with the power sensor.
1.2 User Manuals
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 and interfaces. Includes
the contents of the getting started manual.
1.3 Tutorials
Tutorials offer guided examples and demonstrations on operating the R&S NRP series
power sensor. They are provided on the product page of the internet.
1.4 Instrument Security Procedures
Deals with security issues when working with the R&S NRP series power sensor in
secure areas. It is available for download on the Internet.
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R&S®NRP Series
1.5 Basic Safety Instructions
1.6 Data Sheets and Brochures
Documentation Overview
Application Notes, Application Cards, White Papers, etc.
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
The data sheet contains the technical specifications of the R&S NRP series power sensor. 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 characteristics.
www.rohde-schwarz.com/brochure-datasheet/nrp-a-an
www.rohde-schwarz.com/brochure-datasheet/nrp_s_sn
www.rohde-schwarz.com/brochure-datasheet/nrp18s
www.rohde-schwarz.com/brochure-datasheet/nrp-t-tn
www.rohde-schwarz.com/brochure-datasheet/nrp-twg
1.7 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 open source acknowledgment document provides verbatim license texts of the
used open source software.
www.rohde-schwarz.com/firmware/nrp-a-an
www.rohde-schwarz.com/firmware/nrp_s_sn
www.rohde-schwarz.com/firmware/nrp18s
www.rohde-schwarz.com/firmware/nrp-t-tn
www.rohde-schwarz.com/firmware/nrp-twg
1.8 Application Notes, Application Cards, White Papers, etc.
These documents deal with special applications or background information on particular topics.
6Getting Started 1419.0170.02 ─ 10
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R&S®NRP Series
Documentation Overview
Application Notes, Application Cards, White Papers, etc.
www.rohde-schwarz.com/application/nrp_s_sn
www.rohde-schwarz.com/application/nrp18s
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R&S®NRP Series
2 For Your Safety
For Your Safety
The R&S NRP series power sensor is designated for use in industrial, administrative,
and laboratory environments. Use the R&S NRP series power sensor only for its designated purpose. Observe the safety and usage instructions documented in the user
manual, as well as operating conditions and performance limits stated in the data
sheet.
The product documentation helps you to use the R&S NRP series power sensor safely
and efficiently. Keep the product documentation in a safe place and pass it on to the
subsequent users.
Safety information is part of the product documentation. It warns you about the potential dangers and gives instructions how to prevent personal injury or damage caused
by dangerous situations. Safety information is provided as follows:
●
In the "Basic Safety Instructions", safety issues are grouped according to subjects.
For example, one subject is electrical safety. The "Basic Safety Instructions" are
delivered with the R&S NRP series power sensor in different languages in print.
●
Throughout the documentation, safety instructions are provided when you need to
take care during setup or operation. Always read the safety instructions carefully.
Make sure to comply fully with them. Do not take risks and do not underestimate
the potential danger of small details such as a damaged power cable.
8Getting Started 1419.0170.02 ─ 10
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R&S®NRP Series
3 Key Features
Key Features
The R&S NRP series power sensors are the successors of the established
R&S NRP‑Z series of RF power sensors.
They provide a high-speed USB interface that constitutes both the communication port
and the power supply connection.
Also, most sensors are available with an additional Gigabit Ethernet interface with
Power-over-Ethernet (PoE) power supply. The power sensors with networking capabilities, the R&S NRP LAN power sensors, are marked with a trailing N in their names:
●
R&S NRPxxSN
●
R&S NRPxxAN
●
R&S NRPxxTN
The R&S NRP series power sensors are compatible with the R&S NRP‑Z power sensors in both the interface (USB) and a common command subset. This compatibility
makes the replacement of the old power sensors easy.
For a detailed specification, refer to the data sheet.
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R&S®NRP Series
4 Preparing for Use
4.1 Unpacking and Checking the Power Sensor
Preparing for Use
Operating Conditions
For information on safety, see:
●
Chapter 2, "For Your Safety", on page 8
●
Chapter 4.2, "Operating Conditions", on page 10
Check the equipment for completeness using the delivery note and the accessory lists
for the various items. Check the power sensor for any damage. If there is damage,
immediately contact the carrier who delivered the power sensor. Make sure not to discard the box and packing material.
Packing material
Retain the original packing material. If the instrument needs to be transported or shipped later, you can use the material to protect the control elements and connectors.
4.2 Operating Conditions
Risk of injury through hot surfaces
Applies only to the R&S NRP18S‑xx power sensors.
Under certain conditions, the maximum surface temperatures of the power sensor can
exceed the limits defined in EN 61010-1.
Provide protection against unintentional contact and wear appropriate personal protective equipment when touching the sensor.
Specific operating conditions are required to ensure accurate measurements and to
avoid damage to the power sensor and connected devices. Before switching on the
power sensor, observe the information on appropriate operating conditions provided in
the basic safety instructions and the data sheet of the power sensor.
In particular, ensure the following:
●
The power sensor is dry and shows no sign of condensation.
●
The ambient temperature does not exceed the range specified in the data sheet.
●
Signal levels at the input connectors are all within the specified ranges.
●
Signal outputs are connected correctly and are not overloaded.
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R&S®NRP Series
4.3 Important Aspects for Test Setup
Preparing for Use
Connecting to a DUT
Handling the R&S NRP33SN-V power sensor
Risk of contamination
Always wear clean protective gloves when handling the R&S NRP33SN-V vacuum
power sensors to protect the device and its environment from contamination.
Recommended bake-out procedure
When the sensor is inserted in a vacuum chamber, perform vacuum baking for 100
hours at 85°C at a pressure lower than 10-5 mbar.
Preventing electrostatic discharge (ESD)
ESD is most likely to occur when you connect or disconnect a DUT.
NOTICE! Risk of electrostatic discharge (ESD). Electrostatic discharge (ESD) can
►
damage the electronic components of the power sensor and the device under test
(DUT).
Ground yourself to avoid electrostatic discharge (ESD) damage:
● Use a wrist strap and cord, and connect yourself to the ground.
● Use a conductive floor mat and heel strap combination.
EMI impact on measurement results
Electromagnetic interference (EMI) may affect the measurement results.
To suppress generated electromagnetic interference (EMI):
●
Use suitable shielded cables of high quality. For example, use double-shielded RF
and LAN cables.
●
Always terminate open cable ends.
●
Note the EMC classification in the data sheet.
4.4 Connecting to a DUT
For connecting the power sensor to a DUT, use the RF connector of the power sensor.
For details, see Chapter 5.1, "RF Connector", on page 22.
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R&S®NRP Series
Preparing for Use
Connecting to a Computer
Risk of overloading the sensor
Using a power sensor at a level above its upper measuring limit can damage the sensor head. To avoid this risk, make sure not to exceed the test limit.
The test limits specified on the type label are valid only for the supplied attenuator. For
operation without attenuator, lower test limits apply, as specified in the data sheet.
To connect to the DUT
1. Ensure that the RF connector of your DUT is compatible with the RF connector of
the power sensor.
2. Insert the RF connector straight into the RF output of your DUT. Take care not to tilt
it.
180
NOTICE! Risk of damaging the center pin of the RF connector. Always rotate only
3.
the hex nut of the RF connector. Never rotate the power sensor itself.
Tighten the RF connector manually.
4. To ensure maximum measurement accuracy, tighten the RF connector using a tor-
que wrench with the nominal torque recommended in Chapter 5.1, "RF Connector",
on page 22.
To disconnect from the DUT
NOTICE! Risk of damaging the center pin of the RF connector. Always rotate only
►
the hex nut of the RF connector. Never rotate the power sensor itself.
Carefully loosen the union nut at the front of the RF connector of the sensor and
remove the sensor.
4.5 Connecting to a Computer
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
NRP
For operating the power sensor, you can choose from various possibilities. For details,
see Chapter 6, "Operating Concepts", on page 27.
You can establish the connection using one of the following interfaces:
●
Host interface
Contents:
● Setting Up a USB Connection.................................................................................13
● Setting Up a LAN Connection................................................................................. 15
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R&S®NRP Series
4.5.1 Setting Up a USB Connection
4.5.1.1 Simple USB Connection
Preparing for Use
Connecting to a Computer
You can connect a R&S NRP series power sensor to a computer using the host interface and control it as described in Chapter 6, "Operating Concepts", on page 27.
Further information:
●
Chapter 7, "Remote Control Interfaces and Protocols", on page 41
All R&S NRP power sensors can be connected to a computer by a USB interface and
controlled by a supported software or a remote program.
Required equipment
●
R&S NRP power sensor
●
R&S NRP‑ZKU cable
Setup
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
Figure 4-1: Setup with an R&S NRP‑ZKU cable
1 = Signal source
2 = R&S NRP power sensor
3 = Host interface connector
4 = R&S NRP‑ZKU cable
5 = USB connector
6 = Computer with installed VISA driver or R&S NRP Toolkit
NRP
SMART SENSOR TECHNOLOGY
Incorrectly connecting/disconnecting the R&S NRP power sensors can damage the
power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 4,
"Preparing for Use", on page 10.
1. Connect the cables as shown in Figure 4-1 :
a) Connect the R&S NRP‑ZKU cable to the power sensor.
b) Connect the R&S NRP‑ZKU cable to the computer.
c) Connect the power sensor to the signal source.
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R&S®NRP Series
4.5.1.2 R&S NRP‑Z5 Sensor Hub Setup
Preparing for Use
Connecting to a Computer
2. On the computer, start a software application to view the measurement results.
See Chapter 6, "Operating Concepts", on page 27.
The R&S NRP‑Z5 sensor hub (high-speed USB 2.0) can host up to four R&S NRP
power sensors and provides simultaneous external triggering to all connected sensors.
Required equipment
●
1 to 4 R&S NRP power sensors
●
1 R&S NRP‑ZK6 cable per sensor
●
R&S NRP‑Z5 sensor hub with external power supply unit and USB cable
●
BNC cables to connect the trigger input and trigger output signals (optional)
Setup
TTL /CMOS
TTL /CMOS
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
3-Path Diode Power Sensor
SMART SENSOR TECHNOLOGY
NRP
Figure 4-2: Setup with an R&S NRP-Z5 sensor hub
1 = R&S NRP‑Z5 sensor hub
2 = External power supply unit (supplied)
3 = Power cable (supplied)
4 = AC power supply
5 = USB cable (supplied)
6 = Computer with USB host interface
7, 8 = BNC cable (optional, not supplied)
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R&S®NRP Series
Preparing for Use
Connecting to a Computer
9 = Trigger source (optional)
10 = Triggered device (optional)
11-14 = R&S NRP‑ZK6 cable
15 = Host interface connector
16 = R&S NRP power sensor
17 = Signal source
Incorrectly connecting/disconnecting the R&S NRP power sensors can damage the
power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 4,
"Preparing for Use", on page 10.
1. Connect the cables as shown in Figure 4-2:
a) Connect the R&S NRP‑ZK6 cable to the power sensor.
b) Connect the power sensors to the R&S NRP‑Z5 sensor hub. You can connect
up to four sensors.
c) Connect the R&S NRP‑Z5 to the computer.
d) Connect the power sensors to the signal source.
e) Connect the delivered external power supply unit to the R&S NRP‑Z5 and to an
AC supply connector.
f) Connect the trigger input of the R&S NRP‑Z5 with a BNC cable to the trigger
source (optional).
g) Connect the trigger output of the R&S NRP‑Z5 with a BNC cable to the trigger
device (optional).
2. On the computer, start a software application to view the measurement results.
See Chapter 6, "Operating Concepts", on page 27.
4.5.2 Setting Up a LAN Connection
Requires power sensors with networking capabilities, the R&S NRP LAN power sensors.
This section describes how to connect the sensor to a LAN network and configure the
LAN interface for establishing a connection.
Electromagnetic interference (EMI) can affect the measurement results. To avoid any
impact, use category 5 cables or better.
4.5.2.1 Connecting a LAN Power Sensor and a Computer
There are different ways to connect a LAN power sensor to a computer according to
the available equipment:
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R&S®NRP Series
Preparing for Use
Connecting to a Computer
Setup with a PoE Ethernet switch
1
2
NRP
SMART SENSOR TECHNOLOGY
INTERFACE
IN: 3 V or 5 V logic
OUT: min. 2 V into 50 Ω
max. 5.3 V
HOST
TRIG2
I/0
PoE
4
3
Figure 4-3: Setup with a PoE Ethernet switch
1 = Signal source
2 = LAN power sensor
3 = RJ-45 Ethernet connector
4, 6 = RJ-45 Ethernet cable
5 = Ethernet switch supporting PoE power delivery, e.g. R&S NRP-ZAP1
7 = Computer
1. Connect the [RF] connector of the sensor to the DUT.
5
Ethernet Switch
(PoE)
7
6
NOTICE! Risk of sensor damage. Use only PoE power sourcing equipment (PSE)
2.
according to IEEE standards 802.3af or IEEE 802.3at.
Otherwise your power sensor can get damaged.
Connect the RJ-45 Ethernet connector of the sensor to an Ethernet switch that
supports PoE power delivery.
3. Connect the computer to the Ethernet switch.
4. Establish a connection between the power sensor and the network.
See Chapter 4.5.2.2, "Establishing a Connection to the Network", on page 18.
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R&S®NRP Series
Preparing for Use
Connecting to a Computer
Setup with a PoE injector and a Non-PoE Ethernet switch
1
2
NRP
SMART SENSOR TECHNOLOGY
INTERFACE
IN: 3 V or 5 V logic
OUT: min. 2 V into 50 Ω
HOST
TRIG2
max. 5.3 V
I/0
PoE
3
4
5
6
PoE Injector
7
Figure 4-4: Setup with a PoE injector and a Non-PoE Ethernet switch
1 = Signal source
2 = LAN power sensor
3 = RJ-45 Ethernet connector
4, 7,9 = RJ-45 Ethernet cable
5 = PoE injector
6 = AC supply
8 = Non-PoE Ethernet switch
10 = Computer
Non-PoE
Ethernet Switch
10
9
8
1. Connect the [RF] connector of the sensor to the DUT.
NOTICE! Risk of sensor damage. Use only PoE power sourcing equipment (PSE)
2.
according to IEEE standards 802.3af or IEEE 802.3at.
Otherwise your power sensor can get damaged.
Connect the RJ-45 Ethernet connector of the sensor to the output of the PoE injector.
3. Connect the PoE injector to a power supply.
4. Connect the input of the PoE injector to the Non-PoE Ethernet switch.
5. Connect the computer to the Non-PoE Ethernet switch.
6. Establish a connection between the power sensor and the network.
See Chapter 4.5.2.2, "Establishing a Connection to the Network", on page 18.
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R&S®NRP Series
Preparing for Use
Connecting to a Computer
Setup with a PoE injector
1
2
NRP
SMART SENSOR TECHNOLOGY
INTERFACE
IN: 3 V or 5 V logic
OUT: min. 2 V into 50 Ω
max. 5.3 V
HOST
TRIG2
I/0
PoE
3
5
6
Figure 4-5: Setup with a PoE injector
1 = Signal source
2 = LAN power sensor
3 = RJ-45 Ethernet connector
4, 7 = RJ-45 Ethernet cable
5 = PoE injector
6 = AC supply
8 = Computer
1. Connect the [RF] connector of the sensor to the DUT.
8
4
7
PoE Injector
NOTICE! Risk of sensor damage. Use only PoE power sourcing equipment (PSE)
2.
according to IEEE standards 802.3af or IEEE 802.3at.
Otherwise your power sensor can get damaged.
Connect the RJ-45 Ethernet connector of the sensor to the output of the PoE injector.
3. Connect the PoE injector to a power supply.
4. Connect the computer to the input of the PoE injector.
5. Establish a network connection between the power sensor and the computer.
4.5.2.2 Establishing a Connection to the Network
There are two methods to establish a network connection:
●
Power sensor and computer are connected to a common network
(infrastructure network).
●
Power sensor and computer are connected only over the switch
(peer-to-peer network).
In both cases, you can address the LAN power sensor as follows:
●
Chapter 4.5.2.3, "Using Hostnames", on page 19
●
Chapter 4.5.2.4, "Assigning the IP Address", on page 20
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R&S®NRP Series
Preparing for Use
Connecting to a Computer
To set up a network Ethernet connection
1. Connect the power sensor to the network or to a single computer.
By default, the power sensor is configured to use dynamic TCP/IP configuration
(DHCP) and to obtain the address information automatically.
If both LAN status LEDs are illuminated in green color, the power sensor is correctly connected to the network.
Note: Establishing a connection can take up to 2 minutes per device.
2. If the LAN status LEDs show another state, no connection is possible. For possible
solutions, see:
● "Network status LED" on page 26
● "Troubleshooting for peer-to-peer connections" on page 19
Troubleshooting for peer-to-peer connections
1. Allow a waiting time, especially if the computer was used in a network before.
2. Check that only the main network adapter is active on the computer. If the com-
puter has more than one network interfaces, explicitly disable all other network
interfaces if you plan to utilize a peer-to-peer connection to the power sensor.
3. Check that the remaining main network adapter has been assigned an IP address
starting with 169.254. The IANA (Internet assigned numbers authority) has
reserved the range 169.254.0.0 to 169.254.255.255 for the allocation of
automatic private IP addresses (APIPA). Addresses from this range are guaranteed
to cause no conflicts with any routable IP address.
4. Try to establish a connection to the power sensor with both the default hostname
and the hostname extended with .local, for example:
nrp18sn-101441
nrp18sn-101441.local
4.5.2.3 Using Hostnames
In a LAN that uses a domain name system (DNS) server, each connected computer or
instrument can be accessed via an unambiguous hostname instead of an IP address.
The DNS server translates the hostname to the IP address. Using the hostname is
especially useful when a DHCP server is used, as a new IP address can be assigned
each time the instrument is restarted.
Each power sensor is delivered with a default hostname assigned. You can change the
default hostname.
Default hostname
The default hostname follows the syntax:
<device name>-<serial number>, where:
●
<device name> is the short name of your sensor.
For example, the <device name> of R&S NRP18SN is nrp18sn.
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R&S®NRP Series
Preparing for Use
Connecting to a Computer
●
<serial number> is the individual serial number of the power sensor. The serial
number is printed on the name plate at the rear side of the sensor. It is part of the
device ID printed above the barcode:
ID: 1419.0035K02 - 101441 - Zd
Figure 4-6: Serial number on the name plate
Example:
Serial number of the power sensor: 101441
Default hostname: nrp18sn-101441
Hostname in zero configuration networks, including peer-to-peer networks
The power sensor supports zero configuration networking, used in networks without
DHCP server, such as peer-to-peer networks. Thus, you can connect the power sensor
to a network without setting up services such as dynamic host configuration protocol
(DHCP) and domain name system (DNS), or configuring the network settings manually.
For establishing a connection to the power sensor, try the default hostname as well as
the hostname extended with .local as shown in the example below. All communication for resolving names in the top-level-domain (TLD) .local are defined to be executed using dedicated local services and ports if no other DNS (domain name server)
is available.
Serial Number
Example:
Default hostname: nrp18sn-101441
Extended hostname: nrp18sn-101441.local
4.5.2.4 Assigning the IP Address
Depending on the network capabilities, the TCP/IP address information for the LAN
power sensor can be obtained in different ways:
●
If the network supports dynamic TCP/IP configuration using the Dynamic Host
Configuration Protocol (DHCP), the address information can be assigned automatically.
●
If the network does not support DHCP, the LAN power sensor tries to obtain the IP
address via the Zeroconf (APIA) protocol. If this attempt does not succeed or if the
instrument is set to use alternate TCP/IP configuration, the IP address must be set
manually.
For a description on how to set the IP address manually, refer to the user manual.
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R&S®NRP Series
4.6 Connecting to a USB Host
Preparing for Use
Connecting to a USB Host
Use hostnames to identify the sensor
In networks using a DHCP server, it is recommended that you address the sensor by
its unambiguous hostnames, see Chapter 4.5.2.3, "Using Hostnames", on page 19.
A hostname is a unique identifier of the power sensor that remains permanent as long
as it is not explicitly changed. Hence, you can address a power sensor by the same
identification, irrespectively if a network or a point-to-point connection is used.
For connecting the power sensor to a USB host, use the host interface of the power
sensor. For details, see Chapter 5.3, "Host Interface", on page 24.
To connect a cable to the host interface of the power sensor
You can use an R&S NRP‑ZKU cable or R&S NRP‑ZK6 cable.
1. Insert the screw-lock cable connector into the host interface connector of the power
sensor.
2. Tighten the union nut manually.
To disconnect the host interface of the R&S NRP power sensors
► Loosen the union nut of the screw-lock cable connector and remove the cable.
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R&S®NRP Series
5 R&S NRP Power Sensors Tour
R&S NRP Power Sensors Tour
RF Connector
This chapter provides an overview of the available connectors and LEDs of the power
sensor.
In Figure 5-1, the USB power sensor is shown on the left, the LAN power sensor is
shown on the right.
1
SMART SENSOR TECHNOLOGY
1
NRP
SMART SENSOR TECHNOLOGY
2
3
HOST
NRP
INTERFACE
OUT: min. 2 V into 50
4
PoE
7
8
IN:
3 V or 5 V logic
max. 5.3 V
TRIG2
Ω
I/0
5
6
2
3
4
Figure 5-1: R&S NRP series power sensors (example)
1 = RF connector, see Chapter 5.1, "RF Connector", on page 22
2 = Trigger I/O connector, see Chapter 5.2, "Trigger I/O Connector", on page 24
3 = Host interface connector, see Chapter 5.3, "Host Interface", on page 24
4 = Status LED, see Chapter 5.4, "Status LED", on page 25
5 = LAN connector, see Chapter 5.5, "LAN PoE Interface", on page 25
6 = LAN reset button, see "LAN reset button" on page 26
7 = Power over Ethernet status LED, see "Power over Ethernet status LED" on page 26
8 = Network status LED, see "Network status LED" on page 26
5.1 RF Connector
The RF connector is used for connecting the power sensor to a device under test
(DUT) or a signal generator.
For maximum measurement accuracy, tighten the RF connector using a torque wrench
with a nominal torque as specified in the following table.
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RF Connector
Table 5-1: R&S NRPxxA(N) RF connector characteristics
Power sensor Matching female con-
nector
R&S NRP6A
R&S NRP6AN
R&S NRP18A
R&S NRP18AN
Table 5-2: R&S NRPxxS(N) RF connector characteristics
Power sensor Male connector Matching female con-
R&S NRP8S
R&S NRP8SN
R&S NRP18S
R&S NRP18SN
R&S NRP33S
R&S NRP33SN
R&S NRP33SN-V
R&S NRP40S
R&S NRP40SN
N N 1.36 Nm (12'' lbs)
N N 1.36 Nm (12'' lbs)
3.50 mm 3.50 mm/ 2.92 mm/ SMA
2.92 mm 3.50 mm/ 2.92 mm/ SMA
Male connector Tightening torque
nector
Tightening torque
0.90 Nm (8'' lbs)
R&S NRP50S
R&S NRP50SN
Table 5-3: R&S NRP18S‑xx RF connector characteristics
Power sensor Male connector Matching female con-
R&S NRP18S N N 1.36 Nm (12'' lbs)
Table 5-4: R&S NRPxxT(N) RF connector characteristics
Power sensor Male connector Matching female con-
R&S NRP18T
R&S NRP18TN
R&S NRP33T
R&S NRP33TN
R&S NRP40T
R&S NRP40TN
R&S NRP50T
2.4 mm 2.4 mm/ 1.85 mm
Tightening torque
nector
Tightening torque
nector
N N 1.36 Nm (12'' lbs)
3.50 mm
3.50 mm/ 2.92 mm/ SMA
2.92 mm
2.4 mm 2.4 mm/ 1.85 mm
0.90 Nm (8'' lbs)
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R&S®NRP Series
R&S NRP Power Sensors Tour
Host Interface
Power sensor Male connector Matching female con-
R&S NRP50TN
R&S NRP67T
R&S NRP67TN
R&S NRP110T 1.0 mm 1.0 mm 0.23 Nm (2'' lbs)
Table 5-5: R&S NRPxxTWG RF connector characteristics
Power sensor Matching female
connector
R&S NRP75TWG
R&S NRP90TWG
R&S
NRP110TWG
*It is recommended to use the torque wrench of the R&S tool with the part number 1175.2014.02.
WR-15 WR-15
WR-12 WR-12
WR-10 WR-10
1.85 mm
5.2 Trigger I/O Connector
Tightening torque
nector
Male connector Frequency range Tightening tor-
que
50 GHz to 75 GHz
60 GHz to 90 GHz
75 GHz to 110 GHz
0.58 Nm (5'' lbs)
The trigger I/O is a connector of SMB type.
It is used as an input for signals if the trigger source parameter is set to EXTernal2. It
is used as an output for trigger signals if the sensor is operated in the trigger master
mode.
Further information:
●
For details on configuration, see the user manual.
5.3 Host Interface
The host interface connector is used for establishing a connection between the power
sensors and a USB host or a supported Rohde & Schwarz instrument. For this purpose, an external cable is needed. Two types of cables are available:
●
R&S NRP‑ZKU cable with a USB connector, for connecting the power sensor to a
USB host device (R&S order number 1419.0658.xx).
●
R&S NRP‑ZK6 cable with a push-pull type connector, for connecting the power
sensor to a base unit, R&S NRX or R&S NRP2, or other Rohde & Schwarz products with the round connector (R&S order number 1419.0664.xx).
These cables can be obtained in different lengths up to 5 meters.
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R&S®NRP Series
5.4 Status LED
R&S NRP Power Sensors Tour
LAN PoE Interface
The status LED gives information about the state of the power sensor. The following
states are defined:
Indication State
White Idle state. The sensor performs no measurement and is ready for use.
Flashing white Firmware update is in progress
Slow flashing white Sanitizing in progress
Yellow Wait for trigger state
Green Measuring state
Turquoise blue Zeroing is in progress
Slow flashing red Static error
You can query the error type with SYSTem:SERRor?
Fast flashing red Critical static error
5.5 LAN PoE Interface
Available only for LAN power sensor.
An RJ-45 connector is used to connect the Ethernet interface of the power sensors to a
Local Area Network (LAN).
Ethernet interface requires PoE (Power over Ethernet)
When using the Ethernet interface of the power sensors, the electrical power has to be
provided by Power over Ethernet (PoE). In this case, it is not possible to provide the
power supply via the USB connector instead.
Risk of sensor damage
Use only PoE power sourcing equipment (PSE) according to IEEE standards 802.3af
or IEEE 802.3at.
Otherwise your power sensor can get damaged.
You can query the error type with SYSTem:SERRor?
Note: If this state occurs after a firmware update, the update was not
successful. Perform the firmware update again.
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LAN PoE Interface
LAN reset button
The LAN reset button is used for resetting the Ethernet connection parameters of the
power sensor to their default values.
Power over Ethernet status LED
Available only for LAN power sensor.
The power status LED shows whether the sensor is correctly powered over PoE or not.
Color State
Green The sensor is powered over PoE. You can operate it using the Ethernet interface.
No light No PoE power is present.
Network status LED
Available only for LAN power sensor.
The network status LED shows whether the LAN connection to the network is established properly or not.
Color State
Green The power sensor is correctly connected to the network.
It has been assigned a valid IP address, either manually or via DHCP.
Red The power sensor is not connected to the network correctly.
Either the connection is erroneous or the sensor has not been assigned a valid IP address
yet.
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R&S®NRP Series
6 Operating Concepts
6.1 R&S NRP Toolkit
Operating Concepts
R&S NRP Toolkit
For operating the power sensor, you can choose from various possibilities:
●
Chapter 6.2, "Browser-Based User Interface", on page 30
●
Chapter 6.3, "Remote Control", on page 32
●
Chapter 6.4, "R&S NRPV", on page 32
●
Chapter 6.5, "R&S Power Viewer", on page 34
●
Chapter 6.6, "R&S Power Viewer Mobile", on page 37
●
Chapter 6.7, "R&S NRX", on page 37
●
Chapter 6.8, "R&S NRP2", on page 38
Before you start using the power sensor, it is recommended to install the R&S NRP
Toolkit.
The R&S NRP Toolkit is the basic software package that supplies low-level drivers and
tools for all power sensors. The components of the R&S NRP Toolkit depend on the
operating system.
6.1.1 Versions and Downloads
The R&S NRP Toolkit is available for the Microsoft Windows operating systems listed
under Chapter 6.1.2, "System Requirements", on page 27, Linux distributions and
MacOSX. Several R&S NRP Toolkit versions are available on your documentation CDROM.
The latest version for Windows is available at www.rohde-schwarz.com/software/nrp-
toolkit.
To obtain an R&S NRP Toolkit for an operating system other than Microsoft Windows,
contact the Rohde & Schwarz customer support: customersupport@rohde-
schwarz.com
6.1.2 System Requirements
Hardware requirements:
●
Desktop computer or laptop, or an Intel-based Apple Mac
●
LAN interface and equipment for setting up a LAN connection.
See Chapter 4.5.2, "Setting Up a LAN Connection", on page 15.
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R&S®NRP Series
6.1.3 R&S NRP Toolkit for Windows
Operating Concepts
R&S NRP Toolkit
Supported operating systems:
●
Microsoft Windows versions
– Microsoft Windows Vista 32/64-bit
– Microsoft Windows 7 32/64-bit
– Microsoft Windows 8/ 8.1 32/64-bit
– Microsoft Windows 10 32/64-bit
●
For information on other operating systems, see Chapter 6.1.1, "Versions and
Downloads", on page 27.
The R&S NRP Toolkit installer for Windows-based systems contains the components
described in the release notes available at www.rohde-schwarz.com/software/nrp-tool-
kit.
Installing on a computer
1. Start the R&S NRP Toolkit installer on the Windows-based computer.
In the "NRP-Toolkit Setup" dialog, the correct R&S NRP Toolkit version for your
operating system, 32-bit or 64-bit, is already selected.
2. Enable the components you want to install.
● "NRP-Toolkit (SDK)"
The software development kit (SDK) provides programming examples for the
R&S power sensors.
● "IVI Shared Components"
Installs the USBTMC driver. Enabled by default because the installation is recommended.
See also Table 7-1.
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Operating Concepts
R&S NRP Toolkit
3. Accept the license terms to continue with the installation.
4. Click "Next" and complete the installation process.
6.1.3.1 Components of the R&S NRP Toolkit
Access: "Start" > "NRP-Toolkit"
The following tools are part of the R&S NRP Toolkit for Windows.
Configure Network Sensor
Useful if you have troubles establishing a LAN connection with an R&S NRP LAN
power sensor. The tool provides the following functions:
●
Configuring the network settings by (temporary) connecting the selected sensor to
the computer using USB.
●
Discovering the sensors that have been configured via the Zeroconf (APIA) protocol.
The tool comes with a guide (PDF) that is also available in the "Start" menu. The guide
explains the network setup.
Firmware Update
You can use the Firmware Update for NRP Family program to load new firmware for
the power sensors.
For further details, see the user manual.
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Browser-Based User Interface
NRP Version Display
Displays version information of all installed, power measurement-relevant software
packages.
R&S NRP‑Z Uncertainty Calculator
Determines the expanded measurement uncertainty. The tool comes with a manual
(PDF) that is also available in the "Start" menu.
S-Parameter Update Multi
Helps loading an S-parameter table into the power sensor.
For further details, see the user manual.
Terminal
Low-level communication program for sending commands to the power sensor.
6.2 Browser-Based User Interface
Requires a power sensor with networking capabilities, a R&S NRP LAN power sensor.
With the integrated, browser-based graphical user interface of the LAN power sensor,
you can easily configure the most common settings and measure in the provided measurement modes.
There is no installation required. The web user interface can be used with all devices
and operating systems, including tablets and smart phones that are connected to the
same network.
Required equipment
●
R&S NRP LAN power sensor
●
LAN cables
●
PoE Ethernet switch or a non-PoE Ethernet switch and a PoE injector
●
Device with a supported web browser installed:
– Mozilla Firefox 33 or later
– Google Chrome 36 or later
– Microsoft Internet Explorer 10 or later
– Safari 5.1 or later
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R&S®NRP Series
Operating Concepts
Browser-Based User Interface
Setup
1
2
NRP
SMART SENSOR TECHNOLOGY
INTERFACE
IN: 3 V or 5 V logic
OUT: min. 2 V into 50 Ω
max. 5.3 V
HOST
TRIG2
I/0
PoE
4
7
3
5
Ethernet Switch
(PoE)
Figure 6-1: Setup with the web user interface
1 = Signal source
2 = LAN power sensor
3 = RJ-45 Ethernet connector
4, 6 = RJ-45 Ethernet cable
5 = Ethernet switch supporting PoE power delivery
7 = Computer with a supported web browser installed
Incorrectly connecting/disconnecting the R&S NRP power sensors can damage the
power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 4,
"Preparing for Use", on page 10.
6
Starting a measurement
1. Connect the cables as shown in Figure 6-1.
For a detailed description, refer to Chapter 4.5.2, "Setting Up a LAN Connection",
on page 15.
2. Open a supported web browser.
3. Enter the instrument name or the IP address of the sensor you want to connect to.
Example: http://nrp33sn-123456
For details on how to find out the IP address or hostname, refer to Chapter 4.5.2.4,
"Assigning the IP Address", on page 20 and Chapter 4.5.2.3, "Using Hostnames",
on page 19.
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R&S®NRP Series
Operating Concepts
R&S NRPV
The main dialog of the web user interface opens.
4. Select the "Continuous Average" tab and perform any necessary changes.
5. Press "Measurement > ON" to start the measurement.
For a detailed description of the web user interface, refer to the corresponding chapter
in the user manual.
6.3 Remote Control
You can remote control the R&S NRP series power sensor easily. The change to
remote control occurs "on the fly" and has no influence on the manual operation.
Further information:
●
See the user manual for details.
●
Chapter 7, "Remote Control Interfaces and Protocols", on page 41
●
Chapter 4.5, "Connecting to a Computer", on page 12
6.4 R&S NRPV
The R&S NRPV enables you to measure power in all available measurement modes.
Also, you can use up to four power sensors simultaneously.
The R&S NRPV is provided on your documentation CD-ROM and on the Rohde &
Schwarz website as a separate standalone installation package.
Required equipment
●
R&S NRP power sensor
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R&S NRPV
●
R&S NRP‑ZKU cable or an R&S NRP‑Z5 sensor hub and an R&S NRP‑ZK6 cable
to connect the sensor to the computer
●
Windows computer with installed:
– R&S NRP Toolkit V 4.16 or higher
– R&S NRPV version 3.2 or higher (refer to the operating manual of the R&S
NRPV for a description of the installation process)
Setup
Figure 6-2: Setup with an R&S NRPV
1 = Signal source
2 = R&S NRP power sensor
3 = Host interface connector
4 = R&S NRP‑ZKU cable
5 = USB connector
6 = Computer with installed R&S NRPV
Incorrectly connecting/disconnecting the R&S NRP power sensors can damage the
power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 4,
"Preparing for Use", on page 10.
Starting a measurement
1. Connect the power sensor to the computer as shown in Figure 6-2.
For a detailed description, refer to Chapter 4.5.1.1, "Simple USB Connection",
on page 13.
2. Start the R&S NRPV.
3. Execute zeroing:
Note: Turn off all measurement signals before zeroing. An active measurement
signal during zeroing causes an error.
a) Switch off the measurement signal.
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R&S Power Viewer
b) Select "Zero > Select > A" (channel short name).
Zeroing takes several seconds. During zeroing, a message shows the progress. After completion, the message reports either success or an error ("Success" / "Failed").
4. Switch on the test signal of the signal source.
5. To start a continuous measurement, select "Measure > Continuous".
The "Continuous" measurement window appears. It shows the measurement
results numerically, and the control panel for accessing further dialogs with parameters for measurement, evaluation and display.
For a detailed description on how to measure in this setup, refer to the operating manual of the R&S NRPV.
6.5 R&S Power Viewer
The R&S Power Viewer is software that simplifies many measurement tasks. It is provided on your documentation CD-ROM and on the Rohde & Schwarz website as a separate standalone installation package.
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R&S®NRP Series
Operating Concepts
R&S Power Viewer
Required equipment
●
R&S NRP power sensor
●
R&S NRP‑ZKU cable or an R&S NRP‑Z5 sensor hub and an R&S NRP‑ZK6 cable
to connect the sensor to the computer
●
Computer with installed:
– R&S NRP Toolkit V 4.16 or higher
– R&S Power Viewer version 9.2 or higher (refer to the operating manual of the
R&S Power Viewer for a description of the installation process)
If you want to use an android device like a tablet or a smartphone, use the R&S Power
Viewer Mobile. For details, see Chapter 6.6, "R&S Power Viewer Mobile",
on page 37.
Setup
Figure 6-3: Setup with the R&S Power Viewer
1 = Signal source
2 = R&S NRP power sensor
3 = Host interface connector
4 = R&S NRP‑ZKU cable
5 = USB connector
6 = Computer with installed R&S Power Viewer
Incorrectly connecting/disconnecting the R&S NRP power sensors can damage the
power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 4,
"Preparing for Use", on page 10.
Starting a measurement
1. Connect the cables as shown in Figure 6-3.
For a detailed description, refer to Chapter 4.5.1.1, "Simple USB Connection",
on page 13.
2. Start the R&S Power Viewer.
3. Execute zeroing:
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R&S®NRP Series
Operating Concepts
R&S Power Viewer
Note: Turn off all measurement power signals before zeroing. An active measurement signal during zeroing causes an error.
a) Switch off the measurement signal.
b) Select "Sensor > Zero (Signal off) ".
4. Switch on the test signal of the signal source.
5. For a continuous average measurement, select "Measurement > Continuous".
The "Continuous" measurement window appears. It shows the measurement
results numerically and some parameters that can be configured.
6. To start the measurement press "Measurement > Start".
The measurement result is shown in the "Continuous" measurement window.
For a detailed description of how to measure in this setup, refer to the operating manual of your R&S Power Viewer. The manual is installed automatically during the installation of the R&S Power Viewer.
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R&S®NRP Series
6.6 R&S Power Viewer Mobile
6.7 R&S NRX
Operating Concepts
R&S NRX
The R&S Power Viewer Mobile extends the functionality of the R&S Power Viewer to
Android-based devices, such as a smartphone and tablets.
You can download the R&S Power Viewer Mobile free of charge from the Google Play
Store.
The 1MA215 "Using R&S®NRP Series Power Sensors with AndroidTM Handheld Devices" application note gives a detailed description on installation and features of the
R&S Power Viewer Mobile. The application note is provided on the documentation CDROM.
Using an R&S NRX, you can measure power with up to four power sensors simultaneously. You can use all sensor-dependent measurement functions and display the
results in parallel.
Required equipment
●
R&S NRP power sensor
●
R&S NRP‑ZK8 to connect the sensor to the R&S NRX
●
R&S NRX
Setup
NRP
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
Figure 6-4: Setup with an R&S NRX base unit
1 = Signal source
2 = R&S NRP power sensor
3 = Host interface connector
4 = R&S NRP‑ZK8
5 = Sensor input connector of the R&S NRX
6 = R&S NRX base unit
Incorrectly connecting/disconnecting the R&S NRP power sensors can damage the
power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 4,
"Preparing for Use", on page 10.
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R&S®NRP Series
Operating Concepts
R&S NRP2
Starting a measurement
1. Preset the R&S NRX and the connected R&S power sensors.
a) Press the [Preset] key.
b) Tap "Preset".
All parameters are set to their defaults.
2. Execute zeroing:
Note: Turn off all measurement signals before zeroing. An active measurement
signal during zeroing causes an error.
a) Switch off the power of the signal source.
b) Press the [Zero] key of the R&S NRX.
c) Tap "Zero All Sensors".
3. Configure the measurement.
a) In the "Measurement Settings" dialog, select the "Measurement Type", for
example "Continuous Average".
b) Tap "Quick Setup" > "Auto Set".
4. Switch on the signal source.
The measurement starts, and the result is displayed in dBm.
5. If necessary, perform further settings.
For a detailed description of how to measure in this setup, refer to the user manual of
the R&S NRX.
6.8 R&S NRP2
With the R&S NRP power sensors and an R&S NRP2, you can measure power with up
to four power sensors simultaneously. All sensor-dependent measurement functions
can be used and the results can be displayed in parallel.
Required equipment
●
R&S NRP power sensor
●
R&S NRP‑ZK6 cable to connect the sensor to the R&S NRP2
●
R&S NRP2 base unit with FW version 7.11 or higher
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R&S®NRP Series
Operating Concepts
R&S NRP2
Setup
NRP
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
SMART SENSOR TECHNOLOGY
Figure 6-5: Setup with an R&S NRP2 base unit
1 = Signal source
2 = R&S NRP power sensor
3 = Host interface connector
4 = R&S NRP‑ZK6 cable
5 = Sensor input connector of the R&S NRP2
6 = R&S NRP2 base unit
Incorrectly connecting/disconnecting the R&S NRP power sensors can damage the
power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 4,
"Preparing for Use", on page 10.
Starting a measurement
1. Connect the cables as shown in Figure 6-5:
a) Connect the R&S NRP‑ZK6 cable to the host interface connector of the sensor.
b) Connect the R&S NRP‑ZK6 cable to a sensor input connector of the R&S
NRP2.
c) Connect the [RF] connector of the power sensor to the signal source.
2. Preset the R&S NRP2.
a) Press the [(PRE)SET] hardkey.
The "File" menu appears.
b) Press the [(PRE)SET] hardkey again or press the "Preset" softkey.
All parameters are set to their defaults, even when in inactive operating modes.
3. Execute zeroing:
Note: Turn off all measurement signals before zeroing. An active measurement
signal during zeroing causes an error.
a) Switch off the power of the signal source.
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Operating Concepts
R&S NRP2
b) Press the [ZERO] hardkey of the R&S NRP2.
The "Zero" dialog box is displayed.
c) Press the [ZERO] hardkey again to perform zeroing of all connected sensor
channels ("Zero (All)") or press the appropriate softkey to select a specific sensor for zeroing.
4. Press the [FREQ] hardkey and enter the carrier frequency of the applied signal if
the specified measurement accuracy is to be reached.
5. Switch on the signal source.
The result window indicates the result (in dBm) obtained with sensor A.
6. If necessary, perform further settings.
For a detailed description of how to measure in this setup, refer to the operating manual of your R&S NRP2.
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R&S®NRP Series
7 Remote Control Interfaces and Protocols
For remote control, communication between the R&S NRP series power sensor power
sensors and the controlling host is established based on various interfaces and protocols.
Depending on the sensor type, the power sensors support different interfaces for
remote control.
●
R&S NRP USB power sensors are always accessed using USB.
●
R&S NRP LAN power sensors can be accessed using USB or Ethernet.
Table 7-1 describes the protocols that are supported for each interface.
Table 7-1: Remote control interfaces and protocols
Remote Control Interfaces and Protocols
USB Interface
Interface Supported by
USB All
power
sensors
Ethernet R&S NRP LAN
power sensors
(*) VISA is a standardized software interface library providing input and output functions to communicate with instruments. A VISA
installation on the controller is a prerequisite for remote control over USBTMC and LAN (when using VXI-11 or HiSLIP protocol)
interfaces.
Protocols, VISA*) address string and Library
●
USBTMC
USB::<vendor ID>::<product ID>::<serial number>[::INSTR]
VISA
●
NRP legacy protocol
●
VXI-11
TCPIP::host address[::LAN device name][::INSTR]
VISA
●
HiSLIP High-Speed LAN Instrument Protocol (IVI-6.1)
TCPIP::host address::hislip0[::INSTR]
VISA
●
Socket communication (LAN Ethernet)
TCPIP::host address[::LAN device name]::<port>::SOCKET
7.1 USB Interface
For remote control using USB connection, the computer and the power sensors must
be connected via the USB interface. A USB connection requires the VISA library to be
installed. VISA detects and configures the R&S power sensors automatically when the
USB connection is established. Apart from the USBTMC driver (which comes with the
installation of the R&S NRP Toolkit), you do not have to install a separate driver.
USB Test & Measurement Class Specification (USBTMC) is a protocol that is built on
top of USB for communication with USB devices. It defines class code information of
the sensor, that identifies its functionality to load the respective device driver. Using
VISA library, it supports service request, triggers and other operations that are commonly found in GPIB devices.
Besides USBTMC, the NRP legacy protocol is available to ensure the compatibility of
the R&S NRP power sensors with the R&S NRP‑Z series of power sensors. The usage
of this protocol is not recommended for new applications.
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Remote Control Interfaces and Protocols
USB Interface
The resource string represents an addressing scheme that is used to establish a communication session with the sensor. It is based on the sensor address and some instrument- and vendor-specific information.
USB Resource String
The syntax of the used USB resource string is:
USB::<vendor ID>::<product ID>::<serial number>[::INSTR]
where:
●
<vendor ID> is the vendor ID for Rohde & Schwarz (0x0AAD)
●
<product ID> is the product ID for the Rohde & Schwarz sensor
●
<serial number> is the individual serial number on the rear of the sensor
Table 7-2: R&S NRPxxA(N) USB product IDs
R&S NRP power sensor USB product ID
R&S NRP6A 0x0178
R&S NRP6AN 0x0179
R&S NRP18A 0x014E
R&S NRP18AN 0x014F
Table 7-3: R&S NRPxxS(N) USB product IDs
R&S NRP power sensor USB product ID
R&S NRP8S 0x00E2
R&S NRP8SN 0x0137
R&S NRP18S 0x0138
R&S NRP18SN 0x0139
R&S NRP33S 0x0145
R&S NRP33SN 0x0146
R&S NRP33SN-V 0x0168
R&S NRP40S 0x015F
R&S NRP40SN 0x0160
R&S NRP50S 0x0161
R&S NRP50SN 0x0162
Table 7-4: R&S NRP18S‑xx USB product IDs
R&S NRP power sensor USB product ID
R&S NRP18S-10 0x0148
R&S NRP18S-20 0x014A
R&S NRP18S-25 0x014C
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Remote Control Interfaces and Protocols
Ethernet Interface
Table 7-5: R&S NRPxxT(N) USB product IDs
R&S NRP power sensor USB product ID
R&S NRP18T 0x0150
R&S NRP18TN 0x0151
R&S NRP33T 0x0152
R&S NRP33TN 0x0153
R&S NRP40T 0x0154
R&S NRP40TN 0x0155
R&S NRP50T 0x0156
R&S NRP50TN 0x0157
R&S NRP67T 0x0158
R&S NRP67TN 0x0159
R&S NRP110T 0x015A
Table 7-6: R&S NRPxxTWG USB product IDs
R&S NRP power sensor USB product ID
R&S NRP75TWG 0x01D1
R&S NRP90TWG 0x01D2
R&S NRP110TWG 0x01D3
Example:
USB::0x0AAD::0x00E2::100001
0x0AAD is the vendor ID for Rohde & Schwarz.
0x00E2 is the product ID for the R&S NRP8S power sensor.
100001 is the serial number of the particular power sensor.
7.2 Ethernet Interface
The Ethernet interface of the R&S NRP LAN power sensors allows you to integrate
them in a local area network (LAN).
For remote control via a network, the computer and the power sensor must be connected via the Ethernet interface to a common network with TCP/IP network protocol. The
TCP/IP network protocol and the associated network services are preconfigured on the
power sensor. Software for device control and the VISA program library must be installed on the computer.
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R&S®NRP Series
7.2.1 VISA Resource Strings
Remote Control Interfaces and Protocols
Ethernet Interface
The VISA resource string is required to establish a communication session between
the controller and the power sensor in a LAN. The resource string is a unique identifier,
composed of the specific IP address of the sensor and some network and VISA-specific keywords.
TCPIP::<IP address or hostname>[::<LAN device name>][::INSTR]
●
TCPIP designates the network protocol used
●
<IP address or hostname> is the IP address or host name of the device
●
[::<LAN device name>] defines the protocol and the instance number of a subinstrument:
●
[::INSTR] indicates the power sensors resource class (optional)
The IP address or hostname is used by the programs to identify and control the sensor.
While the hostname is determined by settings in the sensor, the IP address is assigned
by a DHCP server when the sensor requests one. Alternatively the IP address is determined with a procedure called Zeroconf.
You can also assign a LAN device name which defines the protocol characteristics of
the connection. See the description of the VISA resource string below for the corresponding interface protocols. The string of the LAN device name is emphasized in italics.
HiSLIP
TCPIP::<IP address or hostname>::hislip0[::INSTR]
●
hislip0 is the HiSLIP device name, designates that the interface protocol HiSLIP is
used (mandatory)
hislip0 is composed of [::HiSLIP device name[,HiSLIP port]] and must be assigned.
For details of the HiSLIP protocol, refer to Chapter 7.2.3, "HiSLIP Protocol",
on page 45 .
VXI-11
TCPIP::<IP address or hostname>[::inst0][::INSTR]
●
inst0 is the LAN device name, indicating that the VXI-11 protocol is used (optional)
inst0 currently selects the VXI-11 protocol by default and can be omitted.
For details of the VXI-11 protocol, refer to Chapter 7.2.2, "VXI-11 Protocol",
on page 45 .
Socket Communication
TCPIP::<IP address or hostname>::port::SOCKET
●
port determines the used port number
●
SOCKET indicates the raw network socket resource class
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Remote Control Interfaces and Protocols
Ethernet Interface
Socket communication requires the specification of the port (commonly referred to as
port number) and of "SOCKET" to complete the VISA resource string with the associated protocol used.
The default port for socket communication is port 5025.
For details of the socket communication, refer to Chapter 7.2.4, "Socket Communica-
tion", on page 46.
Example:
A power sensor has the IP address 10.111.11.20; the valid resource string using
VXI-11 protocol is:
TCPIP::10.111.11.20::INSTR
The DNS host name is nrp18sn-100001; the valid resource string is:
TCPIP::nrp18sn-100001::hislip0 (HiSLIP)
TCPIP::nrp18sn-100001::inst0 (VXI-11)
A raw socket connection can be established using:
TCPIP::10.111.11.20::5025::SOCKET
TCPIP::nrp18sn-100001::5025::SOCKET
7.2.2 VXI-11 Protocol
The VXI-11 standard is based on the ONC RPC (Open Network Computing Remote
Procedure Call) protocol which in turn relies on TCP/IP as the network/transport layer.
The TCP/IP network protocol and the associated network services are preconfigured.
TCP/IP ensures connection-oriented communication, where the order of the
exchanged messages is adhered to and interrupted links are identified. With this protocol, messages cannot be lost.
7.2.3 HiSLIP Protocol
The HiSLIP (high-speed LAN instrument protocol) is the successor protocol for VXI-11
for TCP-based instruments specified by the IVI foundation. The protocol uses two TCP
sockets for a single connection - the first for fast data transfer, the second one for nonsequential control commands (e.g. Device Clear or SRQ).
HiSLIP has the following characteristics:
●
High performance as with raw socket network connections
●
Compatible IEEE 488.2 support for Message Exchange Protocol, Device Clear,
Serial Poll, Remote/Local, Trigger, and Service Request
●
Uses a single IANA registered port (4880), which simplifies the configuration of firewalls
●
Supports simultaneous access of multiple users by providing versatile locking
mechanisms
●
Usable for IPv6 or IPv4 networks
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7.2.4 Socket Communication
Remote Control Interfaces and Protocols
Ethernet Interface
The HiSLIP data is sent to the device using the "fire and forget" method with immediate
return. Opposed to VXI-11, where each operation is blocked until a VXI-11 device
handshake returns. Thus, a successful return of a VISA operation such as viWrite()
does not guarantee that the sensor has finished (or even started) executing the
requested command. It just indicates that the command has been delivered to the
TCP/IP buffers.
For more information see also the application note at:
http://www.rohde-schwarz.com/appnote/1MA208.
An alternative way for remote control of the software is to establish a simple TCP/IP
connection to the device using the standard network drivers of your operating system.
The so-called "socket" on Linux, "winsock" on Windows. The socket communication,
also referred to as "raw Ethernet communication", does not necessarily require a VISA
installation on the remote controller side.
Socket connections are established on a specially defined port. The socket address is
a combination of the IP address or hostname of the sensor and the number of the port
configured for remote control. The power sensors use port number 5025 for this purpose.
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R&S®NRP Series
Index
Index
A
Android device
R&S Power Viewer Mobile .......................................... 37
Application cards ................................................................. 6
Application notes ................................................................. 6
B
Brochures ............................................................................ 6
Browser-based user interface ........................................... 30
Button
LAN reset .................................................................... 26
C
Checking ........................................................................... 10
Computer
Connection types ........................................................ 12
LAN connection .......................................................... 15
Simple USB connection .............................................. 13
USB sensor hub .......................................................... 14
Connecting
Host interface .............................................................. 21
RF ............................................................................... 12
To a computer ............................................................. 12
Connector
Host interface .............................................................. 24
LAN ............................................................................. 25
Overview ..................................................................... 22
RF ............................................................................... 22
Trigger I/O ................................................................... 24
Controlling host
Computer using LAN .................................................. 15
D
Data sheets ......................................................................... 6
Disconnecting
Host interface .............................................................. 21
RF ............................................................................... 12
Documentation overview ..................................................... 5
Download
R&S NRP Toolkit ......................................................... 27
DUT
Connecting .................................................................. 11
Disconnecting .............................................................. 11
E
Electromagnetic interference (EMI) ................................... 11
Electrostatic discharge (ESD) ............................................ 11
Ethernet interface
Remote control ........................................................... 43
F
Firmware update ............................................................... 29
G
Getting started ..................................................................... 5
H
HiSLIP
Protocol ....................................................................... 45
Resource string ........................................................... 44
Hostname .......................................................................... 19
I
Instrument security procedures ........................................... 5
Interface
Overview ..................................................................... 22
Introduction ......................................................................... 9
IP address ......................................................................... 20
L
LAN connection
Configuration .............................................................. 29
Hostname ................................................................... 19
IP address ................................................................... 20
Setup .................................................................... 15, 18
LAN reset button ............................................................... 26
LED
Network status ............................................................ 26
Power status ............................................................... 26
Status .......................................................................... 25
Low-level communication program ................................... 30
M
Mobile measurements ....................................................... 37
N
Network status LED .......................................................... 26
O
Open source acknowledgment (OSA) ................................. 6
Operating concepts ........................................................... 27
App for Android devices .............................................. 37
Browser-based user interface ..................................... 30
R&S NRP Toolkit ......................................................... 27
R&S NRP2 .................................................................. 38
R&S NRPV ................................................................. 32
R&S NRX .................................................................... 37
R&S Power Viewer ..................................................... 34
Operating conditions ......................................................... 10
P
Power status LED ............................................................. 26
Preparing for use ............................................................... 10
Protocol
HiSLIP ......................................................................... 45
VXI-11 ......................................................................... 45
R
R&S NRP Toolkit ............................................................... 27
Communication program ............................................ 30
Components for Windows-based systems ................. 28
Firmware update ......................................................... 29
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R&S®NRP Series
Index
Installation under Windows ......................................... 28
Network Configuration ................................................ 29
S-parameter update .................................................... 30
System requirements .................................................. 27
Uncertainty calculator ................................................. 30
Versions ...................................................................... 27
Versions of R&S NRP software .................................. 30
R&S NRP‑Z5 ..................................................................... 14
R&S NRP2 ........................................................................ 38
R&S NRPV ........................................................................ 32
R&S NRX .......................................................................... 37
R&S Power Viewer ............................................................ 34
R&S Power Viewer Mobile ................................................ 37
Release notes ..................................................................... 6
Remote control
Ethernet interface ....................................................... 43
HiSLIP protocol ........................................................... 45
Interfaces .................................................................... 41
Protocols ..................................................................... 41
Socket communication ................................................ 46
USB interface .............................................................. 41
VISA resource strings ................................................. 44
VXI-11 protocol ........................................................... 45
Resource string
HiSLIP ......................................................................... 44
Socket ......................................................................... 44
VISA ............................................................................ 44
VXI-11 ......................................................................... 44
RF connector ............................................................... 11, 22
S
VXI-11
Protocol ....................................................................... 45
Resource string ........................................................... 44
W
White papers ....................................................................... 6
Z
Zero configuration networking ........................................... 18
S-parameter update .......................................................... 30
Safety information ......................................................... 8, 10
Safety instructions ............................................................... 6
Security procedures ............................................................ 5
Setup
Computer .................................................................... 15
Socket
Communication ........................................................... 46
Resource string ........................................................... 44
Status LED ........................................................................ 25
T
Trigger I/O connector ........................................................ 24
Tutorials ............................................................................... 5
U
Uncertainty calculator ........................................................ 30
Unpacking ......................................................................... 10
USB connection ................................................................ 13
USB interface
Remote control ........................................................... 41
USB product ID ................................................................. 42
USB resource string .......................................................... 42
USB sensor hub ................................................................ 14
User manual ........................................................................ 5
V
Versions of R&S NRP software ......................................... 30
VISA
Resource string ........................................................... 44
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