R&S®NRPxxS(N)
Three-Path Power Sensors
User Manual
(;ÛÀÝ2)
1177507902
User Manual
Version 10
This manual describes the following three-path diode power sensors with firmware version FW 02.00 and
later:
●
R&S®NRP8S (1419.0006.02)
●
R&S®NRP8SN (1419.0012.02)
●
R&S®NRP18S (1419.0029.02)
●
R&S®NRP18SN (1419.0035.02)
●
R&S®NRP33S (1419.0064.02)
●
R&S®NRP33SN (1419.0070.02)
●
R&S®NRP40S (1419.0041.02)
●
R&S®NRP40SN (1419.0058.02)
●
R&S®NRP50S (1419.0087.02)
●
R&S®NRP50SN (1419.0093.02)
It also describes the following TVAC-compliant three-path diode power sensor:
●
R&S®NRP33SN-V (1419.0129.02)
© 2019 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.
1177.5079.02 | Version 10 | R&S®NRPxxS(N)
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, for example R&S®NRP18SN is abbreviated as R&S NRP18SN.
R&S®NRPxxS(N)
1 Preface.................................................................................................... 7
1.1 For Your Safety..............................................................................................................7
1.2 Documentation Overview............................................................................................. 7
1.3 Typographical Conventions......................................................................................... 9
2 Key Features.........................................................................................10
3 Preparing for Use................................................................................. 11
3.1 Unpacking and Checking the Power Sensor............................................................ 11
3.2 Operating Conditions..................................................................................................11
3.3 Important Aspects for Test Setup..............................................................................12
3.4 Connecting to a DUT...................................................................................................12
Contents
Contents
3.5 Connecting to a Computer......................................................................................... 13
3.6 Connecting to a USB Host......................................................................................... 22
4 Power Sensor Tour.............................................................................. 23
4.1 RF Connector.............................................................................................................. 23
4.2 Trigger I/O Connector................................................................................................. 24
4.3 Host Interface.............................................................................................................. 24
4.4 Status LED................................................................................................................... 25
4.5 LAN PoE Interface.......................................................................................................25
5 Operating Concepts.............................................................................27
5.1 R&S NRP Toolkit..........................................................................................................27
5.2 Browser-Based User Interface...................................................................................30
5.3 Remote Control........................................................................................................... 32
5.4 R&S NRPV....................................................................................................................32
5.5 R&S Power Viewer...................................................................................................... 34
5.6 R&S Power Viewer Mobile..........................................................................................37
5.7 R&S NRX...................................................................................................................... 37
5.8 R&S NRP2.................................................................................................................... 38
6 Browser-Based User Interface............................................................41
6.1 Main Dialog of the Web User Interface......................................................................41
6.2 Setting the Unit............................................................................................................42
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6.3 Common Settings....................................................................................................... 43
6.4 Measurement Modes...................................................................................................44
6.5 Settings........................................................................................................................ 48
7 Firmware Update..................................................................................57
7.1 Hardware and Software Requirements..................................................................... 57
7.2 Updating the Firmware............................................................................................... 57
8 Replacing an R&S NRP-Zxx with an R&S NRPxxS(N) ..................... 62
8.1 Most Important Differences........................................................................................62
8.2 Prerequisites............................................................................................................... 62
9 Remote Control Commands................................................................64
9.1 Conventions Used in SCPI Command Descriptions................................................64
9.2 Notations......................................................................................................................64
Contents
9.3 Common Commands.................................................................................................. 66
9.4 Preparing for the Measurement................................................................................. 70
9.5 Controlling the Measurement.................................................................................... 72
9.6 Configuring and Retrieving Results..........................................................................87
9.7 Configuring the Measurement Modes.......................................................................92
9.8 Configuring Basic Measurement Parameters........................................................ 104
9.9 Calibrating/Zeroing the Power Sensor ...................................................................125
9.10 Testing the Power Sensor........................................................................................ 127
9.11 Configuring the System............................................................................................128
9.12 Using the Status Register........................................................................................ 140
10 Performing Measurement Tasks - Programming Examples.......... 144
10.1 Performing the Simplest Measurement.................................................................. 144
10.2 Performing the Fastest Measurement in Continuous Average Mode.................. 144
10.3 Performing a Buffered Continuous Average Measurement..................................146
10.4 Performing Trace Measurements............................................................................ 148
10.5 Trace Measurement with Synchronization to Measurement Complete............... 149
11 Remote Control Basics......................................................................151
11.1 Remote Control Interfaces and Protocols.............................................................. 151
11.2 SCPI Command Structure........................................................................................ 155
11.3 Status Reporting System......................................................................................... 162
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12 Troubleshooting................................................................................. 175
12.1 Displaying Status Information................................................................................. 175
12.2 Performing a Selftest................................................................................................ 175
12.3 Problems during a Firmware Update...................................................................... 176
12.4 Cannot Establish a LAN Connection.......................................................................176
Contents
List of Commands..............................................................................177
Index....................................................................................................182
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Contents
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R&S®NRPxxS(N)
1 Preface
1.1 For Your Safety
Preface
Documentation Overview
This chapter provides safety related information, an overview of the user documentation and the conventions used in the documentation.
The R&S NRPxxS(N) is designated for use in industrial, administrative, and laboratory
environments. Use the R&S NRPxxS(N) 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 NRPxxS(N) 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 NRPxxS(N) 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.
1.2 Documentation Overview
This section provides an overview of the R&S NRPxxS(N) user documentation. Unless
specified otherwise, you find the documents on the R&S NRPxxS(N) product page at:
www.rohde-schwarz.com/product/nrp_s_sn
1.2.1 Getting Started Manual
Introduces the R&S NRPxxS(N) 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.
1.2.2 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
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R&S®NRPxxS(N)
1.2.3 Tutorials
1.2.4 Instrument Security Procedures
1.2.5 Basic Safety Instructions
Preface
Documentation Overview
with programming examples, and information on maintenance and interfaces. Includes
the contents of the getting started manual.
Tutorials offer guided examples and demonstrations on operating the R&S
NRPxxS(N) . They are provided on the product page of the internet.
Deals with security issues when working with the R&S NRPxxS(N) in secure areas. It
is available for download on the Internet.
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
1.2.6 Data Sheets and Brochures
The data sheet contains the technical specifications of the R&S NRPxxS(N) . 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_s_sn
1.2.7 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_s_sn
1.2.8 Application Notes, Application Cards, White Papers, etc.
These documents deal with special applications or background information on particular topics.
www.rohde-schwarz.com/application/nrp_s_sn
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1.3 Typographical Conventions
Preface
Typographical Conventions
The following text markers are used throughout this documentation:
Convention Description
"Graphical user interface elements"
[Keys] Key and knob names are enclosed by square brackets.
Filenames, commands,
program code
Input Input to be entered by the user is displayed in italics.
Links Links that you can click are displayed in blue font.
"References" References to other parts of the documentation are enclosed by quota-
All names of graphical user interface elements on the screen, such as
dialog boxes, menus, options, buttons, and softkeys are enclosed by
quotation marks.
Filenames, commands, coding samples and screen output are distinguished by their font.
tion marks.
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2 Key Features
Key Features
The 3-path diode power sensors are members of the R&S NRP series power sensors
from Rohde & Schwarz.
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
The R&S NRP33SN-V power sensor is optimized for the usage in a vacuum chamber
allowing measurements under special conditions.
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®NRPxxS(N)
3 Preparing for Use
3.1 Unpacking and Checking the Power Sensor
Preparing for Use
Operating Conditions
For information on safety, see:
●
Chapter 1.1, "For Your Safety", on page 7
●
Chapter 3.2, "Operating Conditions", on page 11
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.
3.2 Operating Conditions
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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3.3 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.
3.4 Connecting to a DUT
For connecting the power sensor to a DUT, use the RF connector of the power sensor.
For details, see Chapter 4.1, "RF Connector", on page 23.
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R&S®NRPxxS(N)
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 torque wrench with the nominal torque recommended in Chapter 4.1, "RF Connector",
on page 23.
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.
3.5 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 5, "Operating Concepts", on page 27.
You can establish the connection using one of the following interfaces:
●
Host interface
●
LAN interface, if the power sensor is a LAN power sensor
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3.5.1 Setting Up a USB Connection
3.5.1.1 Simple USB Connection
Preparing for Use
Connecting to a Computer
Contents:
● Setting Up a USB Connection.................................................................................14
● Setting Up a LAN Connection................................................................................. 16
You can connect a R&S NRPxxS(N) to a computer using the host interface and control
it as described in Chapter 5, "Operating Concepts", on page 27.
Further information:
●
Chapter 11.1, "Remote Control Interfaces and Protocols", on page 151
All R&S NRPxxS(N) 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 NRPxxS(N) power sensor
●
R&S NRP‑ZKU cable
Setup
SMART SENSOR TECHNOLOGY
NRP
‑
ZKU cable
3-Path Diode Power Sensor
MHz to GHz, 100 pW to 200 mW (−70 dBm to +23 dBm)
Figure 3-1: Setup with an R&S NRP
1 = Signal source
2 = R&S NRPxxS(N) 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
Incorrectly connecting/disconnecting the R&S NRPxxS(N) power sensors can damage
the power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 3,
"Preparing for Use", on page 11.
1. Connect the cables as shown in Figure 3-1 :
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R&S®NRPxxS(N)
3.5.1.2 R&S NRP‑Z5 Sensor Hub Setup
Preparing for Use
Connecting to a Computer
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.
2. On the computer, start a software application to view the measurement results.
See Chapter 5, "Operating Concepts", on page 27.
The R&S NRP‑Z5 sensor hub (high-speed USB 2.0) can host up to four R&S
NRPxxS(N) power sensors and provides simultaneous external triggering to all connected sensors.
Required equipment
●
1 to 4 R&S NRPxxS(N) 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 3-2: Setup with an R&S NRP-Z5 sensor hub
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R&S®NRPxxS(N)
Preparing for Use
Connecting to a Computer
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)
9 = Trigger source (optional)
10 = Triggered device (optional)
11-14 = R&S NRP‑ZK6 cable
15 = Host interface connector
16 = R&S NRPxxS(N) power sensor
17 = Signal source
Incorrectly connecting/disconnecting the R&S NRPxxS(N) power sensors can damage
the power sensors or lead to erroneous results.
Ensure that you connect/disconnect your power sensor as described in Chapter 3,
"Preparing for Use", on page 11.
1. Connect the cables as shown in Figure 3-2:
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 5, "Operating Concepts", on page 27.
3.5.2 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.
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3.5.2.1 Connecting a LAN Power Sensor and a Computer
Preparing for Use
Connecting to a Computer
Electromagnetic interference (EMI) can affect the measurement results. To avoid any
impact, use category 5 cables or better.
There are different ways to connect a LAN power sensor to a computer according to
the available equipment:
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 3-3: 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 3.5.2.2, "Establishing a Connection to the Network", on page 19.
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R&S®NRPxxS(N)
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 3-4: 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 3.5.2.2, "Establishing a Connection to the Network", on page 19.
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R&S®NRPxxS(N)
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 3-5: 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.
3.5.2.2 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 3.5.2.3, "Using Hostnames", on page 20
●
Chapter 3.5.2.4, "Assigning the IP Address", on page 21
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R&S®NRPxxS(N)
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 20
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 computer 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
3.5.2.3 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®NRPxxS(N)
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 3-6: 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
3.5.2.4 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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3.6 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 3.5.2.3, "Using Hostnames", on page 20.
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 4.3, "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 NRPxxS(N) power sensors
► Loosen the union nut of the screw-lock cable connector and remove the cable.
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4 Power Sensor Tour
Power Sensor Tour
RF Connector
This chapter provides an overview of the available connectors and LEDs of the power
sensor.
In Figure 4-1, 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 4-1: R&S NRP series power sensors (example)
1 = RF connector, see Chapter 4.1, "RF Connector", on page 23
2 = Trigger I/O connector, see Chapter 4.2, "Trigger I/O Connector", on page 24
3 = Host interface connector, see Chapter 4.3, "Host Interface", on page 24
4 = Status LED, see Chapter 4.4, "Status LED", on page 25
5 = LAN connector, see Chapter 4.5, "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
4.1 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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Power Sensor Tour
Host Interface
Table 4-1: 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
R&S NRP50S
R&S NRP50SN
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
2.4 mm 2.4 mm/ 1.85 mm
4.2 Trigger I/O Connector
Tightening torque
nector
0.90 Nm (8'' 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:
●
Chapter 9.5.2, "Triggering", on page 73
4.3 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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4.4 Status LED
Power Sensor 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
4.5 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.
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.
See also Chapter 12.3, "Problems during a Firmware Update",
on page 176.
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.
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Power Sensor Tour
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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5 Operating Concepts
5.1 R&S NRP Toolkit
Operating Concepts
R&S NRP Toolkit
For operating the power sensor, you can choose from various possibilities:
●
Chapter 5.2, "Browser-Based User Interface", on page 30
●
Chapter 5.3, "Remote Control", on page 32
●
Chapter 5.4, "R&S NRPV", on page 32
●
Chapter 5.5, "R&S Power Viewer", on page 34
●
Chapter 5.6, "R&S Power Viewer Mobile", on page 37
●
Chapter 5.7, "R&S NRX", on page 37
●
Chapter 5.8, "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.
5.1.1 Versions and Downloads
The R&S NRP Toolkit is available for the Microsoft Windows operating systems listed
under Chapter 5.1.2, "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
5.1.2 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 3.5.2, "Setting Up a LAN Connection", on page 16.
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5.1.3 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 5.1.1, "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.
See Chapter 10, "Performing Measurement Tasks - Programming Examples",
on page 144.
● "IVI Shared Components"
Installs the USBTMC driver. Enabled by default because the installation is recommended.
See also Table 11-1.
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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.
5.1.3.1 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.
See Chapter 7, "Firmware Update", on page 57.
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Operating Concepts
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.
See Chapter 9.8.4.5, "Using the S-Parameters Tool", on page 115.
Terminal
Low-level communication program for sending commands to the power sensor.
5.2 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 NRPxxSN 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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