Vaisala RVP10 Service manual

M212758EN-A
RESTRICTED
Hardware Quick
Guide
Digital Receiver and Signal Processor
RVP10

PUBLISHED BY
Vaisala Oyj
Vanha Nurmijärventie 21, FI‑01670 Vantaa, Finland
P.O. Box 26, FI‑00421 Helsinki, Finland
[phone]
www.vaisala.com
docs.vaisala.com
© Vaisala 2023
No part of this document may be
reproduced, published or publicly
displayed in any form or by any means,
electronic or mechanical (including
photocopying), nor may its contents be
modified, translated, adapted, sold or
disclosed to a third party without prior
written permission of the copyright holder.
Translated documents and translated
portions of multilingual documents are
based on the original English versions. In
ambiguous cases, the English versions are
applicable, not the translations.
The contents of this document are subject
to change without prior notice.
Local rules and regulations may vary and
they shall take precedence over the
information contained in this document.
Vaisala makes no representations on this
document’s compliance with the local
rules and regulations applicable at any
given time, and hereby disclaims any and
all responsibilities related thereto.
This document does not create any legally
binding obligations for Vaisala towards
customers or end users. All legally binding
obligations and agreements are included
exclusively in the applicable supply
contract or the General Conditions of Sale
and General Conditions of Service of
Vaisala.
This product contains software developed
by Vaisala or third parties. Use of the
software is governed by license terms and
conditions included in the applicable
supply contract or, in the absence of
separate license terms and conditions, by
the General License Conditions of Vaisala
Group.
This product may contain open source
software (OSS) components. In the event
this product contains OSS components,
then such OSS is governed by the terms
and conditions of the applicable OSS
licenses, and you are bound by the terms
and conditions of such licenses in
connection with your use and distribution
of the OSS in this product. Applicable OSS
licenses are included in the product itself
or provided to you on any other applicable
media, depending on each individual
product and the product items delivered
to you.

Table of contents
1. About this document.....................................................................................5
1.1 Version information.......................................................................................... 5
1.2 Related documents...........................................................................................5
1.3 Documentation conventions........................................................................... 6
1.4 Trademarks........................................................................................................ 6
2. Safety................................................................................................................... 7
2.1 Safety..................................................................................................................7
2.1.1 ESD protection...........................................................................................8
3. Hardware description....................................................................................9
3.1 Hardware system overview..............................................................................9
3.2 IFDR10 hardware...............................................................................................9
3.2.1 Hardware security....................................................................................10
3.2.2 IFDR10 connectors.................................................................................... 11
3.2.3 IFDR10 power, size, and mounting considerations.............................. 14
3.2.4 Installing IFDR10.......................................................................................15
3.3 RVP10SRV signal processing computer........................................................15
3.3.1 LAN connection for data transfer or parallel processing.................... 15
3.3.2 Open hardware and software design.....................................................15
3.3.3 RVP10 socket interface............................................................................16
3.3.4 RVP10SRV socket protocol..................................................................... 16
3.3.5 Public API.................................................................................................. 18
3.3.6 Installing the RVP10SRV server computer............................................ 19
3.4 STALO control.................................................................................................20
4. Technical specifications.............................................................................. 21
4.1 Signal processing.............................................................................................21
4.1.1 Processing algorithms............................................................................. 21
4.2 RVP10 Input and output summary............................................................... 22
4.3 IFDR10 specifications.....................................................................................23
4.4 IFDR10 physical and environmental characteristics...................................25
4.5 RVP10SRV signal processing computer specifications..............................26
4.6 Regulatory statements...................................................................................27
4.7 RVP10 spare parts.......................................................................................... 28
Appendix A: IFRD10 technical drawings.................................................. 29
Appendix B: Recycling instruction.............................................................30
Warranty.............................................................................................................31
Technical support............................................................................................. 31
Table of contents
RESTRICTED 3

RVP10 Hardware Quick Guide M212758EN-A
4 RESTRICTED

1. About this document
1.1 Version information
This document provides safety information, a hardware description, and technical
specifications for RVP10 Digital Receiver and Signal Processor.
For more information about RVP10, read RVP10 User Guide (M212604EN).
Table 1 Document versions
Document code Date Description
M212758EN-A March 2023 First revision.
1.2 Related documents
Table 2 Vaisala Weather Radar documentation
Document code Name
M211315EN IRIS and RDA Software Installation Guide
M211316EN IRIS and RDA Utilities Guide
M211317EN IRIS Radar User Guide
M211318EN IRIS Programming Guide
M211319EN IRIS Product and Display Guide
DOC236879 IRIS RDA Release Notes
M212604EN RVP10 Digital Receiver and Signal Processor User Guide
M211320EN Radar Control Processor RCP8 User Guide
M211849EN IRIS Focus User Guide
M211850EN IRIS Focus Administrator Guide
M211904EN IRIS Focus Release Notes
Vaisala encourages you to send your comments or corrections to [e-mail].
Chapter 1 – About this document
RESTRICTED 5

1.3 Documentation conventions
Warning alerts you to a serious hazard. If you do not read and
follow instructions carefully at this point, there is a risk of injury or even death.
WARNING!
Caution warns you of a potential hazard. If you do not read and
follow instructions carefully at this point, the product could be damaged or
important data could be lost.
CAUTION!
Note highlights important information on using the product.
Tip gives information for using the product more eciently.
Lists tools needed to perform the task.
Indicates that you need to take some notes during the task.
1.4 Trademarks
Vaisalaâis a registered trademark and IRIS™and Sigmet™are trademarks of Vaisala Oyj.
All other product or company names that may be mentioned in this publication are trade
names, trademarks, or registered trademarks of their respective owners.
RVP10 Hardware Quick Guide M212758EN-A
6 RESTRICTED

2. Safety
2.1 Safety
Turn o to the server computer and disconnect the mains power
before installing or removing PCI boards or otherwise opening the server
chassis.
WARNING!
Never open the IFDR10 unit. Thermal conductive material does
not bind properly when unit is reassembled. Opening IFDR10 voids all
warranties.
WARNING!
Follow local regulations in the installation and usage of the device.CAUTION!
The surface may be hot.
Install IFDR in a suitable enclosure where it is protected from dust
and humidity. Ensure the sucient airflow.
CAUTION!
Use ESD protection. See ESD protection (page 8).CAUTION!
Do not modify the unit. Improper modification can damage the
product or lead to malfunction.
CAUTION!
Chapter 2 – Safety
RESTRICTED 7

CLASS 1 LASER PRODUCT
The product includes SFP+ optical transceivers. They are Class 1 Laser Products
and comply with US FDA regulations. These products are certified by TÜV and
CSA to meet the Class 1 eye safety requirements of EN (IEC) 60825 and the
electrical safety requirements of EN (IEC) 60950.
The laser rays are invisible to the human eye.
Even though the optical transceivers are eye-safe, do not look directly into the
laser source.
2.1.1 ESD protection
Electrostatic discharge (ESD) can damage electronic circuits. Vaisala products are adequately
protected against ESD for their intended use. However, it is possible to damage the product by
delivering electrostatic discharges when touching, removing, or inserting any objects in the
equipment housing.
To avoid delivering high static voltages to the product:
• Handle ESD‑sensitive components on a properly grounded and protected ESD workbench
or by grounding yourself to the equipment chassis with a wrist strap and a resistive
connection cord.
• If you are unable to take either precaution, touch a conductive part of the equipment
chassis with your other hand before touching ESD‑sensitive components.
• Hold component boards by the edges and avoid touching component contacts.
RVP10 Hardware Quick Guide M212758EN-A
8 RESTRICTED

3. Hardware description
3.1 Hardware system overview
The major modules supplied with RVP10 are:
• IFDR10 Intermediate Frequency Digital Receiver (IFDR), which is typically mounted inside
the radar receiver.
• RVP10SRV server main chassis, which is typically mounted in a 19" EIA rack (radar
cabinet).
RVP10 hardware installation includes mechanical installation and siting, electrical
specifications of the interface signals, system-level considerations, and the standard connector
panel.
Much of the RVP10 I/O is configured through software. Since there is no custom wiring,
internal jumpers, or oscillators, it is easy to insert spare modules.
3.2 IFDR10 hardware
Figure 1 IFDR10
The IFDR10 hardware consists of a printed circuit card assembly contained in a mechanical
housing. The tight metal housing gives the device the maximum noise immunity. The housing
protects the PCB, a heat sink, and an EMI/RFI barrier. The mounting options are designed to be
backwards compatible with RVP901 IFDR. IFDR10 may be mounted flat or upright on either of
its side.
Chapter 3 – Hardware description
RESTRICTED 9

The dimensions of the module are 246 mm × 136 mm × 52.5 mm (10.6 in × 5.6 in × 2.0 in)
Figure 2 IFDR10 components
3.2.1 Hardware security
IFDR10 has been hardened against unprivileged access and execution of malicious software in
the device. Firmware integrity is verified in all stages of code execution by checking the
firmware signatures before execution. This permits only ocial signed firmware by the device
manufacturer to execute.
Any attempt to use modified firmware in the IFDR10 will lead to a signature verification failure,
making the IFDR10 hardware unusable. IFDR10 does not contain any predefined login
credentials or passwords, which prevents any unauthorized access into the embedded Linux
operating system running the device. The only access into the IFDR10 settings and
configuration are via the interfaces Vaisala provides.
RVP10 Hardware Quick Guide M212758EN-A
10 RESTRICTED

3.2.2 IFDR10 connectors
Figure 3 IFDR10 front connector panel
Table 3 IFDR10 front connector panel
Label Type Description
Trig 0 Out SMA General purpose trigger I/O
Trig 1 Out SMA General purpose trigger I/O
SFP 0 SFP+ 10 Gbps fiber optic network link
Rx 0 In SMA Direct IF input functionally
assigned with ifd_settings
LAN 0 RJ-45 1 Gbps Ethernet
Rx 1 in SMA Direct IF input functionally
assigned with ifd_settings
LAN1 RJ-45 1 Gbps Ethernet
Rx 2 in SMA Direct IF input functionally
assigned with ifd_settings
Rx 3 in SMA Direct IF input functionally
assigned with ifd_settings
Rx 4 in SMA Direct IF input functionally
assigned with ifd_settings
Rx 5 in SMA Direct IF input functionally
assigned with ifd_settings
Ref Clk in SMA Reference clock input
USB USB-C Used for manufacturing
purposes. Currently no field
applications.
Tx 0 out SMA Direct Transmit IF output
Tx 1 out SMA Direct Transmit IF output
Tx 2 out SMA Direct Transmit IF output
Ref Clk out SMA Reference clock output
Chapter 3 – Hardware description
RESTRICTED 11

Label Type Description
Status LED indicator light Reserved for future
development
Reset Switch Tactile, momentary on switch
Figure 4 IFDR10 side connector panel
Table 4 IFDR10 side connector panel
Label Type Description
+5V Phoenix Contact DMC 1,5/10-
G1F-3,5-LR P20THR
5 V voltage supply
IO0-IO15 Phoenix Contact DMC 1,5/10-
G1F-3,5-LR P20THR
General purpose input/output
CAN0 H and L Phoenix Contact DMC 1,5/10-
G1F-3,5-LR P20THR
Can bus 0
CAN1 H and L Phoenix Contact DMC 1,5/10-
G1F-3,5-LR P20THR
Can bus 1
Table 5 IFDR10 side connector panel pinout
GND GND GND GND GND GND GND GND GND GND
+5V IO0 IO1 IO2 IO3 IO4 IO5 IO6 IO7 +5V
CAN0 CAN1
GND GND GND GND GND GND H L H L
+5V IO8 IO9 IO10 IO11 IO12 IO13 IO14 IO15 +5V
RVP10 Hardware Quick Guide M212758EN-A
12 RESTRICTED

3.2.2.1 IFDR10 inputs
All IFDR10 inputs are on SMA connectors. The IF signal input is made immediately after the
STALO mixing/sideband filtering step of the receiver. The required signal level for both the IF
signal and burst is +11.2 dBm for the strongest expected input signal.
You can use a fixed attenuator or IF amplifier to adjust the signal level to be in this range. The
maximum signal level is 16 dBm.
Table 6 IFDR10 inputs and outputs
Input Description
IF signals IFDR10 has 6 Rx input channels for IF signals: Rx 0 - Rx 5.
The user can select which channels are used for primary and secondary
polarization IF signals and for wide dynamic range.
IF burst pulse sample
for magnetron
Received over ADC-E.
Trigger input or output 2 trigger outputs on SMA connectors: Trig 0 and Trig 1 ( 50 Ohms / 4 V).
4 trigger inputs in the GPIO panel
Digitizing is performed for both the IF signal and burst channels from a user-selectable
sampling frequency range of 190 ... 240 MHz at 16-bit resolution to sub-nanosecond accuracy.
This provides 92 ... 107 dB of dynamic range (depending on pulse width) without using
complex AGC, dual A/D ranging, or down-mixing to a lower IF frequency. Each A/D converters
is time synced within 1 nanosecond to ensure sampling in multiple channels is of the nearly
equivalent targets.
RVP10 provides AFC support for tuning the STALO of a magnetron system. Alternatively, the
magnetron can be tuned by a motorized tuning circuit controlled by RVP10.
Chapter 3 – Hardware description
RESTRICTED 13

3.2.3 IFDR10 power, size, and mounting considerations
Table 7 IFDR installation considerations
Consideration Description
Communicatio
n
The IFDR communicates with a host computer through 10Gb Ethernet.
The Auto-MDIX feature eliminates concerns about cross-over versus straight
cables.
The platform provides support for TCP and UDP packets. The default IP address,
shipped with each system, is 10.0.3.254. The IFDR supports jumbo packets.
Vaisala recommends the UDP packet sizes be set to 8192 on the
host computer.
To comply with industry standards, use a shielded CAT5e cable (certified to 350
MHz), with shielded RJ45 plugs on each end.
Ensure the Ethernet connectors on the host computer and IFDR make contact
with the metal on the shielded cable, which provides DC return path. This design
prevents ground loop currents from flowing between units, even when they are
plugged into dierent AC/Mains.
Cooling The unit is cooled by direct conduction of heat through the metal chassis.
One side of IFDR10 serves as a heat sink. The hotter chips mounted on the printed
circuit board are bonded to the heat sink.
Position IFDR10 so that air can freely convect around it. A minimum of 0.6 m3/min
of air flow required.
The ambient air temperature range is -40 ... +55 °C (-40 ... +131 °F).
Filters Reserve mounting space for the external, analog, anti-alias filters.
The filters can be mounted nearby in the radar cabinet, or they can be attached
directly to the IFDR, on the opposite side from the power module.
Mounting The unit is designed to be mounted on an edge.
The IFDR is a compact sealed module with dimensions 246 mm × 136 mm × 51 mm
(9.7 in × 5.4 in × 2.0 in).
With the mounting bracket, the length of the module is 270 mm (10.6 in) and
height 52.5 mm (2.1 in).
See IFRD10 technical drawings (page 29).
Power Nominal operating voltage is 24 VDC.
Operating voltage range is 20 … 30 VDC.
Typical power consumption is 36 W.
RVP10 Hardware Quick Guide M212758EN-A
14 RESTRICTED

3.2.4 Installing IFDR10
When installing IFDR10, note the following:
1. Mount the device so that the connectors are easy to access.
2. When connecting the cables, clean the connectors carefully with suitable tools.
3. Tighten the coaxial SMA connectors to 0.57 Nm with a torque wrench.
It is important that the connectors are in the correct tightness.
4. When using insulated sleeves, use ferrules with 10 mm contact length.
3.3 RVP10SRV signal processing computer
The RVP10SRV signal processing computer hosts the Linux operating system and provides the
computing resources for processing the I/Q values that are generated by IFDR10.
3.3.1 LAN connection for data transfer or parallel processing
For external communication, RVP10SRV supports a standard 1 Gbit Ethernet.
For communication between RVP10SRV and IFDR10, there is a 10 Gbit fiber optic cable
connection.
For most applications, the IRIS Radar software is installed on the same server with RDA
software. Moment results (Z, T, V, and W) are transferred internally.
The Ethernet is used to transfer moment results (Z, T, V, and W) to third-party application host
computers, such as a product generator.
IFDR10 communicates over 100 Base T or 10-Gigabit Ethernet using UDP packets to send the I
and Qvalues to RVP10SRV, and can broadcast them - allowing for archiving or parallel
processing.
The digital Iand Qdata produced by IFDR10 is sent to the RVP10SRV server to perform the
processing using pulse pairs, Fourier transforms, or random phase techniques.
3.3.2 Open hardware and software design
RVP10SRV is an open-architecture radar signal processor. The RVP10 software runs on
AlmaLinux operating system.
Using public APIs, researchers and OEM manufacturers can modify or replace existing
algorithms, or write their own software using the RVP10 software as a foundation.
To support software upgrades, RVP10SRV can flash IFDR10 software. The RDA version can be
updated in the field with minimal risk. RVP10SRV software provides a configuration interface.
For more information, see IRIS and RDA Software Installation Guide (M211315EN).
Chapter 3 – Hardware description
RESTRICTED 15

3.3.3 RVP10 socket interface
RVP10SRV is configured to listen on a network port. It is ready to interface to a host computer
through the network using the DspExport program. When the IRIS Radar software is
installed on the same RVP10SRV computer, it is pre-configured to communicate with
RVP10SRV processes through the native interface, bypassing the socket interface.
RVP10SRV includes built-in utilities such as Setup, dspx, and Ascope. See IRIS and RDA
Utilities Guide (M211316EN).
Because RVP10SRV can only have one program controlling it at a time, using a local program
such as dspx blocks network access.
3.3.4 RVP10SRV socket protocol
The socket interface supports the commands in appendix RVP10 programming interface.
All messages going both ways consist at the lowest level of an 8-character decimal ASCII
number, followed by a block of data. The decimal number indicates how many bytes follow.
Generally, all data transfers are initiated by the host computer by sending a block of data,
consisting of a command word followed by the |character, followed by optional data.
It responds to all commands with either an Ack|, indicating acknowledgment that the
command was OK, or Nak|, indicating that there was an error. For Nak|, the reply always
includes a string indicating what the error was. For Ack, there is optional data following.
On initial socket connection request DspExport provides a response of either Nak|,
indicating the connection failed and why, or Ack|, followed by some connection information.
TheAck| string is in the form of name/value pairs, for example:
Ack|CanCompress=1,Model=RVP10,Version=10.0
Your program can evaluate, or ignore, these keywords. CanCompress=1 indicates that the
DspExport computer supports compression. The host computer can then choose to use
compression. When you first connect, you are in the "info only" mode. This means that the
server only responds to INFO and OPEN commands.
DspExport supports the following commands:
• Read command (READ)
• Write command (WRIT)
• Read Status command (STAT)
• Set Information command (INFO)
• Read data available command (RDAV)
• Open the connection for I/O (OPEN)
RVP10 Hardware Quick Guide M212758EN-A
16 RESTRICTED

Table 8 Socket protocol commands
Command Example
Read
(READ)
Example: READ|100| means: Read 100 bytes from the RVP10.
Since the RVP10 interface is a 16-bit word interface, these read sizes
should always be even.
This command returns a Ack| followed by 100 bytes of binary data, or
with a Nak|, meaning there can be no partial reads.
Write
(WRIT)
Example: WRIT|<data>, where <data> is some binary data.
This data is written to RVP10. The data size should be even.
Read Status
(STAT)
Example: STAT| reads the status bits back from the RVP10. This is a 1-bit
value, set to 1if RVP10 has data available in its output buer.
The command returns Ack|0, Ack|1, or Nak.
This is equivalent to the dspr_status() call in the dsp library.
Set Information
(INFO)
Example: INFO|
ByteOrder=LittleEndian,WillCompress=1,Version=10.0.
This command can be used to inform RVP10SRV DspExport about the
host computer. Available options are:
•ByteOrder—Informs DspExport of the byte order of the host
computer. This is needed because all the data read or written to/from
the RVP10 is in 16-bit words. If the host computer has a dierent byte
order from the RVP10, DspExport byte swaps the data.
•WillCompress—Informs DspExport to use compression or not.
Compression is only used if both sides agree to use it. The host
computer should only set this to 1 if it received a CanCompress of 1 on
initial connection. The data from normal READ commands is
compressed.
If the data is compressed, it replies with the acknowledge compressed
string of AkC.
The compression program is the zlib compress and uncompress. The
uncompress function requires that the caller know the expected
uncompressed size. This is true for RVP10 reads, because the reader
always specifies the read size.
•Version—Sends the IRIS version.
Read Data Available
(RDAV)
Example: RDAV|100|2| means read up to 100 bytes of data from the
RVP10SRV in individual DMA transfers of 2 bytes each.
Before each read, the status is checked to see if there is more data
available. If not, the read stops, and the number of bytes read is returned.
This is merely a performance enhancing command, since the same
feature is available by using the READand STAT commands.
Chapter 3 – Hardware description
RESTRICTED 17

Command Example
Open the Connection
for I and O
(OPEN)
Example: OPEN means: Switch from "open to info only" mode to open for
I/O.
If the signal processor is in use by another device, this command returns
an error. Multiple clients are allowed to connect for info only, but only one
can do I/O. If you run DspExport with the -803 command line option,
you get the legacy behavior, which means that every connection
automatically sends the OPEN command.
There is no reverse command to switch back to open for info only. There
is also no such library call in the driver.
Read Zcal Information
(RCAL)
Example: ZCAL means: Read the dsp_refl_cal structure from RVP10
and send it back in an ASCII name=value pair format.
This is the structure configured by Zauto and Zcal.
The configuration is served to all clients using RVP10.
Reset Kernel FIFOs
(RKFF)
Example: RKFF|2| means: Reset the kernel FIFOs on the RVP10.
The argument specifies which direction FIFOs to reset.
Read Setup
Information
(SETU)
Example: SETU means: Read the dsp_manual_setup structure from
RVP10 and send it back in an ASCII name=value pair format.
This is the structure configured in the RVP section of the Setup utility.
The configuration is served to all clients using RVP10.
Write Zcal Information
(WCAL)
Example: WCAL|... writes the dsp_refl_cal structure to RVP10 for
saving.
3.3.5 Public API
To support writing your own signal processing algorithms for RVP10, the RVP10 software
architecture enables you to statically link plug-in modules to the running code. The following
table shows how the API supports adding software extensions to the RVP10 framework to
modify some signal processing stages.
Table 9 API support for modifying signal processing
Processing stage API support
Tx/Rx waveform synthesis and matched filter
generation
Define transmit waveforms from pulse-to-pulse,
along with the corresponding FIR coecients
that extract (I,Q) from the Tx waveform.
Allows users to experiment with arbitrary
waveforms for pulse compression and frequency
agility.
Time series and spectra processing from (I,Q) Modify default time series and spectra data, for
example, to perform averaging or windowing in
a dierent way.
RVP10 Hardware Quick Guide M212758EN-A
18 RESTRICTED

Processing stage API support
Parameter generation from (I,Q) • Redefine how standard parameters (dBZ,
Velocity, Width, PHIDP, and so on) are
computed from the incoming (I,Q) time
series.
• Create new parameter types.
The standard scientific algorithms are not public. Many RVP10 library routines are also
documented and can be called by user code, but the source to these routines is not generally
released. Development tools must be purchased separately.
3.3.6 Installing the RVP10SRV server computer
The RVP10SRV server computer has two power supplies.
Disconnect power from both power supplies when powering down or
servicing the unit.
WARNING!
1. Mount the RVP10SRV server chassis in an equipment rack on rack slides.
2. Use the fiber optic cable to connect IFDR10 to the RVP10SRV server chassis.
Clean the connectors carefully with appropriate tools. If the connectors are not properly
cleaned, the data quality may suer.
3. Connect the power cables.
The device includes dual-redundant power supplies, with two line cords.
3.3.6.1 Powering up RVP10SRV
1. Power-up and boot IFDR10.
If IFDR10 is not powered-up and booted, the rvp10 process cannot start on RVP10SRV.
2. Start or reset RVP10SRV.
The host Linux PC goes through an automated boot process that ultimately starts the
RVP10 application.
3. While RVP10SRV runs extensive internal diagnostics, if no display is connected yet, you
can connect a display to view any error messages or monitor the startup log
in /var/log/irisrda/rvp10.log.
Chapter 3 – Hardware description
RESTRICTED 19

3.4 STALO control
The earlier generations of Vaisala RVPs used a legacy Sigmet digital automatic frequency
control (DAFC) device for STALO control. RVP10 is using a new approach with o-the-shelf
industrial automation products for STALO control. For controlling STALOs having RS-422 serial
data interfaces, the Moxa NPort IA5150AI-T device is used. It receives control commands over
the internal radar network from the RVP10 server, and converts them to RS-422 serial output.
Currently, this is the only method provided for controlling STALOs, but other methods can be
implemented on request.
Figure 5 STALO control
RVP10 Hardware Quick Guide M212758EN-A
20 RESTRICTED