Rohde & Schwarz R&S OSP-B157W8 PLUS User manual

R&S®OSP‑B157W8(PLUS)
R&S®OSP‑B157WX
8-Port Modules for Switch
Units
Getting Started
Getting Started
Version 03
1178580802
(;ÜÈ82)

This document describes the following optional modules for the R&S®OSP switch
unit family:
●R&S®OSP-B157W8 (order number 1527.1144.02)
●R&S®OSP-B157W8PLUS (order number 1527.1144.05)
●R&S®OSP-B157WX (order number 1531.4909.02)
Software:
●R&S®RF Test Suite (R&S®EMC32 / R&S®AMS32 / R&S®WMS32), V 10.60
and later
●R&S®OSP Panel, V 02.47 and later
© 2019 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Fax: [phone]
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – Data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1178.5808.02 | Version 03 | R&S®OSP‑B157W8(PLUS) R&S®OSP‑B157WX
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g.
R&S®OSP is indicated as R&S OSP.

Contents
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Contents
1 Preface....................................................................................5
2 Documentation Overview......................................................9
2.1 Getting Started Manual.........................................................................9
2.2 User Manual...........................................................................................9
2.3 Operating Manual of the Switch Unit.................................................. 9
2.4 Help...................................................................................................... 10
2.5 Basic Safety Instructions................................................................... 10
2.6 R&S OSP on the Internet....................................................................10
3 Preparing for Use.................................................................13
3.1 Unpacking and Checking................................................................... 13
3.2 Mounting the Base Module................................................................ 13
3.3 Mounting the Extension Module........................................................19
3.4 Installing or Updating the Firmware..................................................24
3.5 Putting into Operation........................................................................ 25
4 Tour of the Base Module..................................................... 30
4.1 Connecting Devices to the Base Module..........................................32
5 Tour of the Extension Module............................................ 35
5.1 Connecting Devices and a Base Module to the Extension Module
.............................................................................................................. 37
6 Operating the Modules........................................................40
Index..................................................................................... 42

Contents
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Preface
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1 Preface
The R&S OSP-B157W8 or R&S OSP-B157W8PLUS and R&S OSP-B157WX are
standard modules for the open switch platform R&S OSP.
The R&S OSP-B157WX serves as a frequency extension for the base module
R&S OSP-B157W8 or R&S OSP-B157W8PLUS. While the extension forwards
lower frequency signals to the base module, it can bypass higher frequency sig-
nals to an appropriate measurement channel.
Both modules are typically used in the automatic test system R&S TS8997 that
performs regulatory conformance tests of wireless short range devices (SRDs).
The tests cases are focused on the 2.4 GHz and 5 GHz frequency bands for Wi-
Fi and ISM applications (industrial, scientific and medical). These tests are per-
formed according to the standards FCC 15.407, ETSI EN 300 328,
ETSI EN 301 893, ETSI EN 302 502, ETSI EN 300 440 and others.
Intended use
The R&S OSP-B157W8, R&S OSP-B157W8PLUS and R&S OSP-B157WX
are designated for the development, production and verification of elec-
tronic components and devices in industrial and laboratory environments.
Use the modules only for their designated purpose. Observe the operating
conditions and performance limits stated in the data sheets.
Designation "module" vs. "switch unit"
This manual uses the following nomenclature:
●The R&S OSP-B157W8 is referred to as "base module".
●The R&S OSP-B157W8PLUS is referred to as "base module".
●The R&S OSP-B157WX is referred to as "extension module".
●The R&S OSP is referred to as "switch unit".
Integration
●The base module R&S OSP-B157W8 or R&S OSP-B157W8PLUS is (or must
be) integrated in an R&S OSP150 or R&S OSP120 switch unit.
●The extension module R&S OSP-B157WX is (or must be) integrated in an
R&S OSP120 switch unit (not in an R&S OSP150).

Preface
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Except for one optional additional single-slot module in slot A11 of the switch unit,
no additional modules can be installed in a single switch unit beside one
R&S OSP-B157W8, one R&S OSP-B157W8PLUS or one R&S OSP-B157WX.
For all information related to the R&S OSP switch units, refer to their operating
manual.
Frequency ranges
Basically, the modules are designed to cover the 2.4 GHz and 5 GHz frequency
bands. However, some of the above mentioned regulatory ETSI and FCC tests
include measuring spurious emissions up to 18 GHz or even up to 40 GHz.
Therefore, the frequency coverage of the modules is as follows:
●The R&S OSP-B157W8 operates in a frequency range up to 6 GHz. The
R&S OSP-B157W8PLUS operates in a frequency range up to 7.5 GHz. Both
base modules offer a special by-path for spurious emissions measurements
up to 18 GHz. The integrated power meter and signal conditioning is designed
for in-band use only.
The lower end of the frequency range of the R&S OSP-B157W8 and
R&S OSP-B157W8PLUS depends on the selected paths and application. It
starts, for example, approximately at 100 MHz, if internal power measure-
ments are involved, or approximately at 1 GHz, if directional couplers are
involved.
●The R&S OSP-B157WX extends the spurious emissions frequency range up
to 40 GHz. Signals to be measured in this frequency range are not forwarded
to the DUT input ports of the base module, but bypassed directly to the signal
analyzer.
Key features of the base module R&S OSP-B157W8
The 6 GHz module R&S OSP-B157W8 with up to 8 channels is based on a prin-
ted RF switch board in solid-state relay (SSR) architecture. It allows flexible oper-
ation of the connected DUT (up to 8 ports) and measurement instruments.
The module features:
●Signal conditioning by integrated attenuators, couplers and combiners (with-
out amplifiers or filters)
●RF switching for wireless test cases up to 6 GHz
●RF switching for spurious emission measurements up to 18 GHz (exception: if
a frequency extension module R&S OSP-B157WX is present, these signals
are handled within the extension module)

Preface
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●Power measurements in the 2.4 GHz and 5 GHz bands with specific evalua-
tions for wireless standards
●Built-in data acquisition board for control of the signal paths and for collection
and A/D conversion of the power measurements
●Multiple trigger input and output options
●External clock input
●Video input
●LAN interface for remote control of the module operation by the test software
R&S WMS32
Key features of the base module R&S OSP-B157W8PLUS
In addition to the features of the ".02" version R&S OSP-B157W8, the ".05" ver-
sion of the module features:
●Frequency range for signalling up to 7.5 GHz
●Additional step attenuator R2 for an extended attenuation range, see Fig-
ure 4-3
Each of the 8 configurable channels in the R&S OSP-B157W8 and R&S OSP-
B157W8PLUS has the following integrated semiconductor components:
●An individually programmable attenuator
●An analog power detector for synchronous RMS power measurement with
high sampling rate and burst detection
●An A/D converter for the power measurement results
●Solid-state switches, which enable:
– Switching the (vector) signal generator output to the calibration port or to
the DUT ports
– Switching the measurement paths from DUT ports to a spectrum analyzer /
test receiver or to the power measurement
– Signal conditioning via the integrated couplers, directional couplers,
attenuators and combiners
Key features of the frequency extension module R&S OSP-B157WX
The 40 GHz module R&S OSP-B157WX is especially designed to provide RF
switching for spurious measurements up to 40 GHz.

Preface
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It uses coaxial RF architecture and features:
●Electromechanical RF relay switches for flexible operation of up to 8 DUT
channels
●The module can forward incoming signals on each DUT channel to the con-
nected DUT input of the R&S OSP-B157W8 or R&S OSP-B157W8PLUS. This
forwarding is used for measurements at frequencies up to 6 GHz, which the
R&S OSP-B157W8 can handle, or up to 7.5 GHz, which the R&S OSP-
B157W8PLUS can handle.
●Alternatively, incoming signals on one single DUT channel can be switched to
the module's [Rx] port and on to a connected signal analyzer, receiver or other
measurement instrument. This switching state is typically used for measure-
ments at frequencies above 6 GHz or 7.5 GHz and up to 40 GHz, which the
base modules cannot handle. (Signals for spurious emission measurements
up to 18 GHz are also switched to the instrument connected to the extension
module's [Rx] port.)
●If the R&S OSP-B157WX forwards the DUT's signals, it also switches the sig-
nal analyzer path from its [RxOUT] port (input port) to its [Rx] port. This [Rx]
port is connected to the signal analyzer or test receiver, while the [Rx] port of
the R&S OSP-B157W8 or R&S OSP-B157W8PLUS is connected to the
[RxOUT] port (input port) of the R&S OSP-B157WX.
●Additionally, you can add the signal of a companion device to one of the DUT
paths via its internal switches and a directional coupler. The type of compan-
ion device depends on the DUT. For example, if your DUT is a Wi-Fi trans-
ceiver, the companion device can be a wideband radiocommunication tester
R&S CMW500. In this example, it would simulate a wireless router that main-
tains a bidirectional connection with the transceiver.
Screenshots
Sample screenshots in this documentation are used to illustrate as much as
possible of the functions provided by the modules and of potential interde-
pendencies between parameters. Note that:
●The values in these screenshots do not necessarily represent realistic
application situations.
●Do not consider the values as recommended by Rohde & Schwarz.
●The screenshots shown can differ, depending on your particular equip-
ment and configuration.

Documentation Overview
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2 Documentation Overview
This section provides an overview of the R&S OSP-B157W8, R&S OSP-
B157W8PLUS and R&S OSP-B157WX user documentation. Unless specified
otherwise, you find the documents on the R&S OSP product page at:
www.rohde-schwarz.com/manual/osp
2.1 Getting Started Manual
Introduces the modules and describes how to set up and start working with them.
Includes safety instructions, key features, preparation, mounting, setup and basic
operation. A printed version is delivered with the modules.
2.2 User Manual
Contains the description of all functions of the modules. It includes the contents of
the getting started manual and provides explanations, step-by-step procedures,
figures and examples. The user manual supports you during your first experience
with the product, from installation and configuration to various measurements.
The content also provides an introduction to remote control, a complete descrip-
tion of the remote control commands with programming examples, and informa-
tion on maintenance, instrument interfaces and error messages.
The user manual is available for download or for immediate display on the Inter-
net.
2.3 Operating Manual of the Switch Unit
Contains the description of all instrument modes and functions of the R&S OSP
Open Switch and Control Platform (switch unit). It is available for download on the
Internet.
Operating Manual of the Switch Unit

Documentation Overview
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2.4 Help
The R&S OSP-B157W8 and R&S OSP-B157W8PLUS are operated either by
direct bus commands or by the software R&S WMS32, which is part of the
R&S RF Test Suite. The R&S OSP-B157WX can also be operated by the soft-
ware R&S OSP Panel.
The software-embedded help content in the R&S RF Test Suite provides quick,
context-sensitive access to information for the software packages R&S EMC32,
R&S AMS32 and R&S WMS32. Refer to the R&S WMS32 part of this help con-
tent for application of the modules and switch units in the R&S TS8997 test sys-
tem. The help content also describes templates for test cases that you can use in
tests according to various FCC and ETSI standards. Examples are FCC 15.407,
ETSI EN 300 328 or ETSI EN 301 893.
The software, which requires a license, is available at www.rohde-schwarz.com/
software/emc32.
2.5 Basic Safety Instructions
Contains safety instructions, operating conditions and further important informa-
tion. The printed document is delivered with the switch unit.
2.6 R&S OSP on the Internet
The website www.rohde-schwarz.com/product/osp provides:
●Key facts, features and options for the family of R&S OSP switch units
●Rohde & Schwarz contacts for information, quotes, demos and calibration ser-
vices
●Technical documentation (operating manual for R&S OSP switch units)
●Brochures and Data Sheets
●Application Notes
●Drivers
●The current firmware version with OSA and release notes
●The R&S OSP Panel software with release notes
R&S OSP on the Internet

Documentation Overview
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●Related documents and articles
●News and information on software updates
●Service Manual (only for registered users)
For operation of the modules, refer to the documentation of the R&S WMS32 soft-
ware. The documentation is available as a help function in the R&S RF Test
Suite, which requires a license and comprises the software packages
R&S EMC32, R&S AMS32 and R&S WMS32. Also, refer to the related release
notes.
2.6.1 Brochures and Data Sheets
The data sheet contains the technical specifications of the R&S OSP. It also lists
the options and their order numbers, and optional accessories.
The brochure provides an overview of the instrument and deals with the specific
characteristics.
See www.rohde-schwarz.com/brochure-datasheet/osp.
2.6.2 Application Notes
Application notes and application cards deal with special applications or back-
ground information on particular topics.
See www.rohde-schwarz.com/application/osp.
2.6.3 Drivers
Up-to-date instrument drivers are available for download.
See www.rohde-schwarz.com/driver/osp.
2.6.4 Release Notes and Open Source Acknowledgment (OSA)
The release notes list new features, improvements and known issues of the cur-
rent firmware or software version and describe the installation.
The open source acknowledgment document provides verbatim license texts of
the used open source software.
R&S OSP on the Internet

Documentation Overview
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See www.rohde-schwarz.com/firmware/osp and www.rohde-schwarz.com/soft-
ware/osp.
2.6.5 Service Manual
Describes handling failed modules, module replacement, troubleshooting and
special remote control commands for service purposes. The document also con-
tains spare part lists and mechanical drawings.
The service manual ("Classified Service Document") is available for
Rohde & Schwarz personnel, only.
R&S OSP on the Internet

Preparing for Use
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3 Preparing for Use
●Unpacking and Checking................................................................................ 13
●Mounting the Base Module............................................................................. 13
●Mounting the Extension Module......................................................................19
●Installing or Updating the Firmware................................................................ 24
●Putting into Operation..................................................................................... 25
3.1 Unpacking and Checking
If your delivery includes a module that is not mounted in a switch unit, be espe-
cially careful with unpacking the module, which is not protected in a casing.
Check the delivery for completeness according to the included shipment list. If the
delivery is incomplete, contact Rohde & Schwarz.
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 con-
nectors.
Mounting modules into switch units
●If you have received one or more modules that are already integrated in
switch units, you can skip the chapters Mounting the Base Module and Mount-
ing the Extension Module. Proceed with Chapter 3.5, "Putting into Operation",
on page 25.
●If you have received one or more modules that are not yet integrated in
switch units, proceed with chapters Mounting the Base Module and Mounting
the Extension Module.
3.2 Mounting the Base Module
Mounting the base module R&S OSP-B157W8 or R&S OSP-B157W8PLUS into
an R&S OSP150 or R&S OSP120 switch unit requires the space of two slots: rear
slots A12 and A13 together with front slots A12F and A13F. Typically, the rear slot
A11 remains free, but optionally it can remain occupied by a single-slot module
Mounting the Base Module

Preparing for Use
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14Getting Started 1178.5808.02 ─ 03
(not operational). Only one base module fits into one R&S OSP150 or
R&S OSP120 switch unit.
Risk of electric shock
Opening a switch unit implies the risk of touching current-carrying compo-
nents and suffering an electric shock, if the device is not properly discon-
nected from grid power.
Before opening the casing, ensure that the switch unit is disconnected from
the power supply by removing the plug from the rear AC power connector.
Observe the safety instructions for units with a removable casing.
Carefully follow the step-by-step instructions for module replacement to
avoid injury and to help ensure safe operation.
Risk of injuries
When removing the rear feet, the switch unit can slip out of its casing.
To avoid the risk of personal injuries and any damage, put the switch unit
onto its front handles before removing the rear feet and taking off the cas-
ing.
When mounting the casing back onto the switch unit, take care not to pinch
your fingers. Also pay attention not to damage or pull off protruding parts,
especially cables.
Screw the rear feet back on immediately after mounting the casing. Do not
move the switch unit with the rear feet missing.
Mounting the Base Module

Preparing for Use
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Removing an existing (old) R&S OSP-B157 module
If you want to install the R&S OSP-B157W8 or R&S OSP-B157W8PLUS in
a switch unit, which is occupied by an existing module (for example
R&S OSP-B157), first remove the existing module.
Remove the existing module in the reverse order of the mounting proce-
dure, described in the service manual of the R&S OSP (1505.3896.82), for
example chapter "Replacing the Option OSP-B157".
Mounting procedure for the R&S OSP-B157W8 or R&S OSP-B157W8PLUS
For mounting the module into an R&S OSP150 or R&S OSP120 switch unit:
1. Turn off the switch unit.
2. Unplug the power supply cable.
3. Disconnect all other cables, too.
4. If the switch unit holds any modules, remove these modules and their ribbon
cables, except for a module in the rear slot A11.
5. If the rear slot A11 of the switch unit holds a module, we recommend removing
it. (Optionally you can leave it there, but you cannot operate it due to missing
control interfaces.)
6. If you have removed a module from rear slot A11, close the open slot with a
blind plate, using the same screws that fixed the module.
7. If blind plates cover unused front slots A12F or A13F of the switch unit,
remove these blind plates.
8. If blind plates cover unused rear slots A12 or A13 of the switch unit, remove
these blind plates.
9. If a blind plate covers an unused rear slot A11 of the switch unit, leave it there.
10. Place the switch unit on its front handles.
11. Optionally, if at the switch unit's feet there are yellow stickers that you want to
save, remove the blue rubber bumpers from the feet.
12. Screw off the switch unit's feet.
Removing these screws releases the switch unit's casing.
13. Push the switch unit's casing upwards.
14. Remove the casing from the switch unit.
Mounting the Base Module

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15. Lay down the switch unit, with its open side facing upwards.
16. Unplug the CAN bus cable (W3) from connector X8 on the switch unit's main
board and from the CAN connector on the switch unit's rear panel.
17. Remove the CAN connector from the switch unit's rear panel.
18. If your switch unit is an R&S OSP120:
● Unplug the LAN cable (W4) from the RJ45 connector on the processor
board and from the LAN connector on the switch unit's rear panel.
● Remove the LAN connector from the switch unit's rear panel.
19. Remove the cable holder of the CAN (and LAN) cable.
20. Remove the rear panel strut between slot A12 and slot A13.
21. Screw the rear plate of the module to the switch unit's rear panel (10 counter-
sunk screws, type Torx M2.5x8, included in the delivery; step 34 uses 3 more
of these screws).
22. Insert the guide cage into the switch unit's free space, with the protruding
flange (item (2) in Figure 3-1) directed towards the switch unit's power supply
and control board, as in Figure 3-3.
Figure 3-1: Guide cage for holding the module in the switch unit
1 = 2 holes for accessing 2 screw hole positions below
2 = Protruding flange
3 = 3 screw holes
4 = Guiding structure elements, into which you slide the module in step 26
23. Screw the guide cage to the switch unit's base plate (5 cylinder-head screws,
type Torx M2.5x6, included in the delivery), items (1) and (3) in Figure 3-1 or
(5) and (6) in Figure 3-3.
Mounting the Base Module

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24. Connect the 4-pole connector at the short end of cable W20 (4 wires, red/
black/black/gray) to the power input connector X201 of the module's RF
board, item (9) in Figure 3-3.
25. Connect the 4-pole connector at the long end of cable W20 (2 wires, brown/
black) to the power input connector X203 of the module's data acquisition
board, item (10) in Figure 3-3.
26. In the open front panel of the switch unit, place the module's rear end just into
the guiding structure elements of the guide cage, as shown in Figure 3-3.
Figure 3-2: Placing the base module in the opened switch unit, before inserting it
27. Do not yet insert the module into the switch unit.
28. Insert the single end of cable W20 (with the 12-pole connector) through the
open front panel of the switch unit while passing the guide cage on its right-
hand side.
As a result, the cable enters the switch unit through a narrow gap between the
front panel and the guide cage.
29. Connect the 12-pole connector of cable W20 to connector X12 on the switch
unit's control board, item (8) in Figure 3-3.
30. Push the module 80% of its length into the switch unit.
31. Fix the middle part of cable W20 by using the cable holder close to the front of
the switch unit, item (11) in Figure 3-3.
32. Push the module all the way into the switch unit, until the module's cover
panel is level with the switch unit (item (2) in Figure 3-3).
Mounting the Base Module

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Figure 3-3: Opened switch unit with guide cage mounted and base module inserted
1 = Guide cage, mounted in the switch unit
2 = Front plate of the inserted module
3 = Rear end of the inserted module
4 = Secondary power cable for the control board, already existing in the switch unit
5 = 2 screws that you can reach through holes in the upper plate of the guide cage, fixing
its left side
6 = 3 screws, fixing the protruding flange at the right side of the guide cage (underneath the
secondary power cable)
7 = Cable W20 (here shown as partly visible through the guide cage)
8 = 12-pole connector of cable W20, connected to connector X12 of the switch unit's con-
trol board
9 = 4-pole connector at the short end of cable W20 (4 wires), plugged into connector X201
on the module's RF board (see detail at left-hand side)
10 = 4-pole connector at the long end of cable W20 (2 wires), plugged into connector X203
on the module's data acquisition board
11 = Cable holder for fixing cable W20
12 = Detail: identifying the connector for the short end (9) of cable W20
13 = Detail: view from the front of the switch unit (front panel not shown) through the empty
guide cage towards the rear panel
33. Screw the module's front plate to the switch unit's front panel (10 countersunk
screws, type Torx M2.5x6, included in the delivery).
34. Screw the module's rear plate, which you have already attached to the switch
unit's rear panel (step 21), to the module (3 countersunk screws, type Torx
M2.5x8, included in the delivery).
Mounting the Base Module

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35. Place the switch unit on its front handles.
36. Shift the casing over the unit.
37. Push the switch unit's casing down to the stop.
38. Screw on the switch unit's feet.
Tightening these screws fixes the switch unit's casing to the unit.
39. If you have removed the blue rubber bumpers from the switch unit's feet, reat-
tach them.
40. Lay down the unit.
41. Reconnect the power cable to the unit.
3.3 Mounting the Extension Module
Mounting the frequency extrension module R&S OSP-B157WX into an
R&S OSP120 switch unit requires the space of two slots: rear slots A12 and A13
together with front slots A12F and A13F. Typically, the rear slot A11 remains free,
but optionally it can remain occupied by a single-slot module (not operational).
Only one R&S OSP-B157WX module fits into one R&S OSP120 switch unit.
Risk of electric shock
Opening a switch unit implies the risk of touching current-carrying compo-
nents and suffering an electric shock, if the device is not properly discon-
nected from grid power.
Before opening the casing, ensure that the switch unit is disconnected from
the power supply by removing the plug from the rear AC power connector.
Observe the safety instructions for units with a removable casing.
Carefully follow the step-by-step instructions for module replacement to
avoid injury and to help ensure safe operation.
Mounting the Extension Module

Preparing for Use
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Risk of injuries
When removing the rear feet, the switch unit can slip out of its casing.
To avoid the risk of personal injuries and any damage, put the switch unit
onto its front handles before removing the rear feet and taking off the cas-
ing.
When mounting the casing back onto the switch unit, take care not to pinch
your fingers. Also pay attention not to damage or pull off protruding parts,
especially cables.
Screw the rear feet back on immediately after mounting the casing. Do not
move the switch unit with the rear feet missing.
Removing an existing (old) R&S OSP-B157 module
If you want to install the R&S OSP-B157WX in a switch unit, which is occu-
pied by an existing module (for example R&S OSP-B157), first remove the
existing module.
Remove the existing module in the reverse order of the mounting proce-
dure, described in the service manual of the R&S OSP (1505.3896.82), for
example chapter "Replacing the Option OSP-B157".
Mounting procedure for the R&S OSP-B157WX
For mounting the module into an R&S OSP120 switch unit:
1. Turn off the switch unit.
2. Unplug the power supply cable.
3. Disconnect all other cables, too.
Mounting the Extension Module