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 signals 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 WiFi and ISM applications (industrial, scientific and medical). These tests are performed 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 electronic 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&SOSP-B157W8 is referred to as "base module".
●
The R&SOSP-B157W8PLUS is referred to as "base module".
●
The R&SOSP-B157WX is referred to as "extension module".
●
The R&SOSP 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).
5Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preface
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 measurements 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 printed RF switch board in solid-state relay (SSR) architecture. It allows flexible operation of the connected DUT (up to 8 ports) and measurement instruments.
The module features:
●
Signal conditioning by integrated attenuators, couplers and combiners (without amplifiers or filters)
●
RF switching for wireless test cases up to 6GHz
●
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)
6Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
●
Power measurements in the 2.4GHz and 5GHz bands with specific evalua-
(PLUS)
R&S®OSP‑B157WX
Preface
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" version of the module features:
●
Frequency range for signalling up to 7.5GHz
●
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 OSPB157W8PLUS 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.
7Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preface
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 connected 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 OSPB157W8PLUS 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 measurements 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 signal 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 companion device depends on the DUT. For example, if your DUT is a Wi-Fi transceiver, the companion device can be a wideband radiocommunication tester
R&S CMW500. In this example, it would simulate a wireless router that maintains 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 interdependencies 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 equipment and configuration.
8Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Operating Manual of the Switch Unit
Documentation Overview
2Documentation Overview
This section provides an overview of the R&S OSP-B157W8, R&S OSPB157W8PLUS 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
2.1Getting 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.
2.2User 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 description of the remote control commands with programming examples, and information on maintenance, instrument interfaces and error messages.
The user manual is available for download or for immediate display on the Internet.
2.3Operating 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.
9Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Documentation Overview
R&S OSP on the Internet
2.4Help
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 software 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 content for application of the modules and switch units in the R&S TS8997 test system. 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.
2.5Basic Safety Instructions
Contains safety instructions, operating conditions and further important information. The printed document is delivered with the switch unit.
2.6R&S OSP on the Internet
The website www.rohde-schwarz.com/product/osp provides:
●
Key facts, features and options for the family of R&SOSP switch units
●
Rohde & Schwarz contacts for information, quotes, demos and calibration services
●
Technical documentation (operating manual for R&SOSP 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
10Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
●
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 software. 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.
(PLUS)
R&S®OSP‑B157WX
Documentation Overview
R&S OSP on the Internet
2.6.1Brochures 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.
2.6.2Application Notes
Application notes and application cards deal with special applications or background information on particular topics.
See www.rohde-schwarz.com/application/osp.
2.6.3Drivers
Up-to-date instrument drivers are available for download.
See www.rohde-schwarz.com/driver/osp.
2.6.4Release Notes and Open Source Acknowledgment (OSA)
The release notes list new features, improvements and known issues of the current firmware or software version and describe the installation.
The open source acknowledgment document provides verbatim license texts of
the used open source software.
11Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Documentation Overview
R&S OSP on the Internet
See www.rohde-schwarz.com/firmware/osp and www.rohde-schwarz.com/soft-
ware/osp.
2.6.5Service Manual
Describes handling failed modules, module replacement, troubleshooting and
special remote control commands for service purposes. The document also contains spare part lists and mechanical drawings.
The service manual ("Classified Service Document") is available for
Rohde & Schwarz personnel, only.
12Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Mounting the Base Module
Preparing for Use
3Preparing 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
3.1Unpacking and Checking
If your delivery includes a module that is not mounted in a switch unit, be especially 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 connectors.
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.
3.2Mounting 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
13Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Base Module
(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 components and suffering an electric shock, if the device is not properly disconnected 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 casing.
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.
14Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Base Module
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 procedure, 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.
15Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Base Module
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 countersunk 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.
16Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Base Module
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).
17Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Base Module
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).
18Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
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, reattach them.
40. Lay down the unit.
41. Reconnect the power cable to the unit.
(PLUS)
R&S®OSP‑B157WX
Mounting the Extension Module
Preparing for Use
3.3Mounting 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 components and suffering an electric shock, if the device is not properly disconnected 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.
19Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Extension Module
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 casing.
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 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 procedure, 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.
20Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Extension Module
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 a blind plate covers the unused rear slot A11 of the switch unit, leave it
there.
8. If you have removed one or two modules from rear slots A12 or A13, close the
open slots with blind plates, using the same screws that fixed the modules.
9. If blind plates cover unused rear slots A12 or A13 of the switch unit, leave
them there.
10. If blind plates cover unused front slots A12F or A13F of the switch unit,
remove these blind plates.
11. Place the switch unit on its front handles.
12. 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.
13. Screw off the switch unit's feet.
Removing these screws releases the switch unit's casing.
14. Push the switch unit's casing upwards.
15. Remove the casing from the switch unit.
16. Lay down the switch unit, with its open side facing upwards.
17. Unplug the CAN bus cable (W3) from connector X8 on the switch unit's main
board, but not from the CAN connector on the switch unit's rear panel.
18. Unplug the LAN cable (W4) from the RJ45 connector on the processor board,
but not from the LAN connector on the switch unit's rear panel.
19. Remove the cable holder of the CAN and LAN cable.
20. Screw the adapter plate (item (1) in Figure 3-4), which comes separately, to
the base plate of the switch unit (12 cylinder-head screws, type Torx M2.5x6,
included in the delivery).
21Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Extension Module
Figure 3-4: Overview of the parts for the fixation of module R&S OSP-B157WX
1 = Adapter plate with 11 threaded insert nuts (dark gray) and 12 screws (yellow) that fix the
adapter plate to the base plate of the switch unit
2 = Ground plate of the module, here in an isolated presentation for better view of the 11
screws (yellow) that fix the module to the adapter plate
3 = Top view of the complete module with the same 11 screws highlighted as in the isolated
presentation (2)
21. Insert the module into the switch unit from the front side (item (3) in Fig-
ure 3-5).
Figure 3-5: Inserting the module R&S OSP-B157WX
1 = 12 screws that fix the adapter plate to the base plate of the switch unit
2 = 11 threaded insert nuts that carry the module
3 = Inserting the module
4 = 11 screws that fix the module's ground plate to the adapter plate
5 = 10 countersunk screws that fix the module's cover panel to the front panel of the switch
unit
22Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Mounting the Extension Module
22. Push the module all the way into the switch unit, until the module's cover
panel is level with the switch unit.
23. Screw the ground plate (item (2) and (3) in Figure 3-4) to the adapter plate (11
cylinder-head screws, type Torx M2.5x6, included in the delivery).
24. Screw the module's front plate to the switch unit's front panel (item (5) in Fig-
ure 3-5, 10 countersunk screws, type Torx M2.5x6, included in the delivery).
25. Connect the cables (included in the delivery) as follows between the interfaceboard of the module R&S OSP-B157WX and the main board of the switch
unit:
Figure 3-6: Cable connections for controlling the frequency extension module
Left= Interface board of the module R&S OSP-B157WX
Right= Main board of the switch unit
1= 6-wire power cable
2 and 3 = 26-pin ribbon cables
X...= Connector numbers, see labels on the boards
26. Reconnect the CAN cable (W3) to connector X8 on the switch unit's main
board).
27. Reconnect the LAN cable (W4) to the RJ45 connector on the switch unit's processor board.
28. Place the switch unit on its front handles.
29. Shift the casing over the unit.
23Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Installing or Updating the Firmware
30. Push the switch unit's casing down to the stop.
31. Screw on the switch unit's feet.
Tightening these screws fixes the switch unit's casing to the unit.
32. If you have removed the blue rubber bumpers from the switch unit's feet, reattach them.
33. Lay down the unit.
34. Reconnect the power cable to the unit.
3.4Installing or Updating the Firmware
For installing or updating the firmware of the R&S OSP-B157W8 or R&S OSPB157W8PLUS, use the R&S WMS32 software package in the R&S RF Test Suite.
Click "Self Check" (labeled (1) in Figure 3-7) to open this dialog:
Figure 3-7: Firmware installation or update in R&S WMS32
Proceed as follows:
1. Click "Self Check".
2. Select the "R&S OSP-B157W8" or "R&S OSP-B157W8PLUS" entry in the
device list of the "Self Check" dialog and click "Test device".
24Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
3. In the "Firmware Update" tab of the next dialog, click "Select Firmware File"
and browse to the correct file.
4. Click "Start Firmware Upload".
The firmware is installed or updated automatically.
During this process, the power LED flashes green.
When the installation or update is completed, the base module restarts and is
ready for use.
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Putting into Operation
3.5Putting into Operation
For using the base module and the extension module in the R&S TS8997 Regulatory Test System for Wireless Devices, mount the switch units into the test system's 19'' rack. This procedure is described in the operating manual of the
R&S OSP and in the mounting instructions supplied with the R&S ZZA-211 rack
adapter (order number 1096.3260.00).
25Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Putting into Operation
Risk of injury when stacking instruments
A stack of instruments can tilt over and cause injury if not stacked correctly.
Furthermore, the instruments at the bottom of the stack can be damaged
due to the load imposed by the instruments on top.
Observe the following instructions when stacking instruments:
●
Never stack more than three instruments. If you need to stack more
than three instruments, install them in a rack.
●
The overall load imposed on the lowest instrument must not exceed
500 N.
●
It is best if all instruments have the same dimensions (width and length).
If you need to stack smaller instruments on the top, the overall load
imposed on the lowest instrument must not exceed 250 N.
●
If the instruments have foldable feet, fold them in completely.
26Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Putting into Operation
Risk of injury if feet are folded out
The feet can fold in if they are not folded out completely or if the instrument
is shifted, which can cause damage or injury.
●
Fold the feet completely in or out to ensure stability of the instrument.
Never shift the instrument when the feet are folded out.
●
When the feet are folded out, do not work under the instrument or place
anything underneath.
●
The feet can break if they are overloaded. The overall load on the folded-out feet must not exceed 100 N.
F
max
Risk of instrument damage due to insufficient airflow in a rack
If you mount several instruments in a rack, you need an efficient ventilation
concept to ensure that the instruments do not overheat. Insufficient airflow
for a longer period can disturb the operation and even cause damage.
For putting the modules into operation after they are mounted inside a switch unit
and optionally inside a rack, proceed as described in the operating manual of the
R&S OSP. This manual also contains valuable information on the switch unit's
setup, on remote operation, on working with the operating system, and much
more.
27Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Putting into Operation
Unlike all other modules for R&S OSP switch units, the R&S OSP-B157W8
and R&S OSP-B157W8PLUS are not equipped with on-board memory to
store the switching configuration of the module's signal paths. Therefore,
the hosting switch unit cannot recognize the module. Instead, the module's
LAN interface must be connected to the control computer and the switching
configuration must be saved as a "Hardware Setup" in the R&S WMS32
software. In this software, the switching configuration of the R&S OSPB157W8 and R&S OSP-B157W8PLUS is already implemented.
For operating the R&S OSP-B157W8 or R&S OSP-B157W8PLUS and the
R&S OSP-B157WX, refer to their user manual, available for download at
www.rohde-schwarz.com/manual/osp.
28Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Preparing for Use
Putting into Operation
Use RF connector adapters as port savers
SMA and K-type RF connectors have a limited lifetime. It is typically limited
to 500 connector mating cycles, due to normal wear. After this number of
mating cycles, the connectors must be replaced.
●
The SMA connectors on the 8 DUT ports at the front panel of the
R&S OSP-B157W8 and R&S OSP-B157W8PLUS are soldered in.
Therefore, their replacement is a costly and time-consuming procedure,
which must be handled by Rohde & Schwarz service.
To save the lifetime of these RF connectors, use the 2.92 mm K-type RF
connector adapters as port savers on the original connectors. A set of 8
adapters is included in the delivery. Fix the adapters with a torque of
0.8 Nm to 1.1 Nm.
Leave the port saver adapters on the ports and connect your DUT channels to these adapters, until the lifetime of the adapters is reached, due
to wear. Then replace the worn port saver adapters for new ones.
Figure 3-8: Port saver adapter
●
If any SMA or K-type connectors of the R&S OSP-B157WX are worn,
replacing these connectors is much more simple, because they are not
soldered in.
Refer to the switch unit's operating manual for more operation information regarding, for example, power supply, connection, grounding, ambient conditions, ventilation, system integration, switching on or reaching the currentless state.
29Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Tour of the Base Module
4Tour of the Base Module
The base module R&S OSP-B157W8 or R&S OSP-B157W8PLUS must be
mounted in an R&S OSP150 or R&S OSP120 switch unit.
The module is remotely operated via Ethernet (LAN), independent of the switch
unit, by the test software R&S WMS32, which must be installed on your control
computer.
Operation is described in the module's user manual and in the operating manual
of the R&S OSP switch units (see chapter on R&S EMC32 software).
On the front panel, the R&S OSP-B157W8 or R&S OSP-B157W8PLUS has the
connectors for up to eight DUT channels and for the test instruments:
As the LAN and CAN connectors on the rear panel of the switch unit are
disabled, use the RJ45 LAN connector of the module R&S OSP-B157W8 or
R&S OSP-B157W8PLUS itself (top center in Figure 4-2) for remote control.
The R&S OSP-B157W8 and R&S OSP-B157W8PLUS operate according to the
following circuit diagram:
Figure 4-3: Circuit diagram of the R&S OSP-B157W8 and R&S OSP-B157W8PLUS RF
board
Orange, right= Front DUT and instrument ports
Orange, left= Instrument or trigger ports, and data acquisition board
Yellow= 1-to-2 switches
Red= Power detectors
Green= 1-to-n switches, attenuators or bi-directional couplers
Blue= Splitters/combiners
Pink= 1-to-2 switches or splitters/combiners in the 18 GHz by-path
Light green= Attenuators or splitters/combiners
(*), yellow highlighted
= Step attenuator R2, only available in R&S OSP-B157W8PLUS, controlled
together with step attenuator R1033 in the companion path
31Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
With this RF circuitry, the R&S OSP-B157W8 or R&S OSP-B157W8PLUS can
operate flexibly in a test system in a multitude of ways.
●
Incoming signals on each DUT channel can be handled as follows:
–Signals can be individually attenuated.
–Signals can be switched to one or more instrument ports of the module.
–The power level can be measured by internal detectors.
●
Incoming signals on each instrument port can be handled as follows:
–Signals can be individually attenuated.
–Signals can be switched to one or more DUT ports of the module.
–The power level can be measured by internal detectors.
The exact behavior of the module is test-case-specific and depends on the applicable test standard. This flexibility allows setting up and handling complex test
and measurement sequences with the connected devices.
(PLUS)
R&S®OSP‑B157WX
Connecting Devices to the Base Module
Tour of the Base Module
4.1Connecting Devices to the Base Module
The base module has various external connectors on its front and rear panel:
SMA for RF signals, BNC for analog and digital trigger control, D-Sub 9 for digital
trigger control and LAN for Ethernet access. The details of these connections are
described in Table 4-1.
Observe maximum input power and no DC voltage
All front connectors and some rear connectors have the following limitations:
●
A maximum tolerable input power level (dBm)
●
No tolerance for a direct current (DC) voltage share in the input signal
If the input signals exceed these limits, the internal circuits of the module
can be damaged.
Do not exceed the dBm levels and "0 VDC" limits that are indicated on the
front and rear panels.
32Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Tour of the Base Module
Connecting Devices to the Base Module
Depending on the switch unit that you use, the following additional connectors are
available:
●
If you use an R&S OSP150 switch unit, its rear panel has a power supply connector with fuse.
●
If you use an R&S OSP120 switch unit, its front panel has a DVI video monitor
interface and two USB 2.0 ports (all inactive in this setup). Its rear panel has a
power supply connector with fuse.
For information on the various connectors of the switch unit and for replacing the
fuse, refer to the operating manual of the R&S OSP.
Connect the power supply connector to an isolated ground receptacle of your
mains grid. The supply voltage must be between 110 VAC and 240 VAC with frequencies ranging from 50 Hz to 60 Hz. Within these ranges, the device is automatically adapted to the supply voltage. To turn the power on or off, put the AC
power switch into position I (on) or 0 (off).
The following table describes all other external connectors of the base module.
Table 4-1: External connectors overview of the R&S OSP-B157W8 or R&S OSP-
B157W8PLUS
PanelLabelDirectionSignalTypeValue range
FrontDUT1 ..
. DUT8
FrontCOMPBiDirCompanion device, max.
FrontX1BiDirCompanion device exten-
FrontRxOut (**)Spectrum analyzer / test
RearTrig 4InTrigger input Ch4Digital BNCHigh: 3.3 V, low: 0 V
RearTrig 3OutTrigger output Ch3Digital BNCHigh: 3.3 V, low: 0 V
RearLANBiDirEthernetDigital RJ45
RearANTOutAntenna outputRF SMA1 GHz to 18 GHz
BiDir (*)Device under test, channel
1 to 8, max. 30 dBm
20 dBm
sion (to R&S OSPB157WX)
receiver
RF SMA1 GHz to 18 GHz
RF SMA1 GHz to 6 GHz
RF SMA1 GHz to 18 GHz
RF SMA1 GHz to 18 GHz
RearVIDEOInVideo input, max. 3 VAnalog SMADC to 1 MHz
RearGENInSignal generator, max.
30 dBm
RearVGENInVector signal generatorRF SMA1 GHz to 18 GHz
RF SMA1 GHz to 18 GHz
33Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Tour of the Base Module
Connecting Devices to the Base Module
PanelLabelDirectionSignalTypeValue range
RearTrig
1...3
Rear48 MHzInExternal clock input 48
RearTrig 1OutTrigger output Ch1Digital D-Sub
RearTrig 2OutTrigger output Ch2Analog BNCHigh: 3.3 V, low: 0 V
InTrigger input Ch1, Ch2,
Ch3
MHz
Digital D-Sub
9
Pin 1,2,3: signal
Pin 5: ground
RF SMA48 MHz ± 200 kHz
9
Pin 1: signal
Pin 5: ground
High: 3.3 V, low: 0 V
High: 3.3 V, low: 0 V
If you use the base module R&S OSP-B157W8 or R&S OSP-B157W8PLUS in
combination with the extension module R&S OSP-B157WX, make the following
changes to the connections listed above:
●
(*)
Connect the ports of your DUT to the frequency extension instead of the base
module.
And connect the DUT ports of the base module to the [OUT1] to [OUT8] ports
of the frequency extension module, as in Figure 5-4.
●
(**)
Connect the signal analyzer or test receiver to the [Rx] port of the frequency
extension instead of the base module.
And connect the [Rx] port of the base module to the [RxOUT] port of the frequency extension module, as in Figure 5-4.
34Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Tour of the Extension Module
5Tour of the Extension Module
The frequency extension module R&S OSP-B157WX must be mounted in an
R&S OSP120 switch unit.
This switch unit has front connectors for a USB keyboard, USB mouse and DVI
display for manual operation. However, we recommend connecting the switch unit
via Ethernet (LAN) to your control computer for remote operation by the software
R&S OSP Panel.
Operation is described in the module's user manual and in the operating manual
of the R&S OSP switch units.
On the front panel, the R&S OSP-B157WX has the connectors for up to eight
DUT channels with corresponding forwarding (loop-through) output ports and the
connectors for the test instruments:
The module has no rear connectors, but just blind plates. The only connectors on
the rear panel are the switch unit's power supply, LAN interface and CAN bus
port.
Use the switch unit's LAN connector for remote control
In contrast with the base module, the frequency extension module has no
LAN connector of its own.
For controlling the R&S OSP-B157WX, use the RJ45 LAN connector on the
rear panel of the switch unit.
Hence, for controlling a combination of both the R&S OSP-B157W8 or
R&S OSP-B157W8PLUS and R&S OSP-B157WX in an R&S TS8997 test
system, use two LAN cables to connect the modules to the test systems'
Ethernet switch.
For an overview of the connectors, see Chapter 5.1.
The R&S OSP-B157WX operates according to the following circuit diagram:
Figure 5-3: Circuit diagram of the R&S OSP-B157WX RF board
Orange, right= 8 DUT input and output ports (front connectors)
Orange, left= 3 instrument ports (also front connectors)
Blue squares= SPDT (1-to-2) relays
Blue upright rectangles= SP6T (1-to-6) relays
Blue horizontal rectangle = Directional coupler
With this RF circuitry, the R&S OSP-B157WX is operated in the test system as
follows:
●
Incoming signals on each DUT channel are forwarded to the connected DUT
input of the base module R&S OSP-B157W8 (supporting up to 6 GHz)
respectively R&S OSP-B157W8PLUS (supporting up to 7.5 GHz).
●
Incoming signals on one single DUT channel at frequencies above 6 GHz
respectively above 7.5 GHz are switched to the module's [Rx] port.
36Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
Connecting Devices and a Base Module to the Extension Module
Optionally, the control system can switch an [RxOUT] signal (instead of a DUT) or
a [X1] signal (companion device, in addition to a DUT) to the module's [Rx] port.
Signal paths for different frequency ranges
You must define the signal paths in such a way that the test system performs out-of-band measurements up to 40 GHz via the R&S OSP-B157WX.
(PLUS)
R&S®OSP‑B157WX
Tour of the Extension Module
5.1Connecting Devices and a Base Module to the
Extension Module
We recommend placing the R&S OSP-B157WX on top of the base module or
mounting the two modules in the same arrangement into a 19'' rack.
Observe maximum input power and no DC voltage
The R&S OSP-B157WX typically forwards RF signals from a DUT to the
R&S OSP-B157W8 or R&S OSP-B157W8PLUS. Hence, if you connect the
R&S OSP-B157WX to the base module, be aware of the following limitations for the front ports:
●
A maximum tolerable input power level (dBm)
●
No tolerance for a direct current (DC) voltage share in the input signal
If the forwarded signals exceed these limits, the internal circuits of the base
module can be damaged.
Do not exceed the dBm levels and "0 VDC" limits that are indicated on the
front (and rear) panels of the R&S OSP-B157W8 or R&S OSPB157W8PLUS.
Connecting the R&S OSP-B157WX
1. Connect the port [OUT1] of the R&S OSP-B157WX to the port [DUT1] of the
R&S OSP-B157W8 or R&S OSP-B157W8PLUS.
37Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Tour of the Extension Module
Connecting Devices and a Base Module to the Extension Module
2. Proceed in the same way for the remaining channels 2 through 8, as required
in your test setup.
3. Connect the port [DUT1] of the R&S OSP-B157WX to channel 1 of your DUT.
4. Proceed in the same way for the remaining channels 2 through 8, as required
in your test setup.
5. For your companion device (which is connected to the [COMP] port of the
base module), connect the port [X1] of the R&S OSP-B157WX to the port [X1]
of the R&S OSP-B157W8 or R&S OSP-B157W8PLUS.
6. Connect the port [RxOUT] of the R&S OSP-B157WX to the port [Rx] of the
R&S OSP-B157W8 or R&S OSP-B157W8PLUS.
7. Connect the port [Rx] of the R&S OSP-B157WX to the input port of your measurement instrument, for example a spectrum analyzer or test receiver.
8. On the rear panel of the R&S OSP-B157WX, connect the switch unit's RJ45
[LAN] port for remotely controlling the R&S OSP-B157WX as described in the
operating manual of the R&S OSP switch units. Note that this usage is differ-
ent from the base module, where you must use the module's LAN port instead
of the switch unit's LAN port. Do not use the CAN port for controlling the
R&S OSP-B157WX.
9. Connect the power supply connector to an isolated ground receptacle of your
mains grid. The supply voltage must be between 110 VAC and 240 VAC with
frequencies ranging from 50 Hz to 60 Hz. Within these ranges, the device is
38Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Tour of the Extension Module
Connecting Devices and a Base Module to the Extension Module
automatically adapted to the supply voltage. To turn the power on or off, put
the AC power switch into position I (on) or 0 (off).
Table 5-1: External connectors overview of the R&S OSP-B157WX
PanelLabelDirectionSignalTypeValue range
FrontDUT1 ..
. DUT8
FrontOUT1 ..
. OUT8
FrontX1BiDirCompanion device (from
FrontRxOutSpectrum analyzer / test
FrontRxOUTInSpectrum analyzer / test
FrontUSB (2x, only R&S
OSP120)
FrontMONITOR DIGITAL
(only R&S OSP120)
RearLANBiDirEthernetDigital RJ45
RearCAN
BiDirDevice under test, channel
1 to 8, max. 30 dBm
BiDirForwarding DUT1 to 8 to
the base module
the base module)
receiver
receiver (from the base
module)
disabled
disabled
disabled
RF K-Type1 GHz to 40 GHz
RF SMA1 GHz to 6 GHz
RF SMA1 GHz to 6 GHz
RF SMA1 GHz to 40 GHz
RF SMA1 GHz to 6 GHz
Note that "RxOUT" is - in spite of its name - an input port for signals coming from the "Rx" port of the R&S OSP-B157W8 or R&S OSPB157W8PLUS base module. The label "RxOUT" was chosen due to the
connection with the Rx output port of the base module.
39Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
(PLUS)
R&S®OSP‑B157WX
Operating the Modules
6Operating the Modules
Observe the safety instructions in Chapter 3.5, "Putting into Operation",
on page 25.
Risk of instrument damage due to inappropriate operating conditions
An unsuitable operating site or test setup can damage the instrument and
connected devices. Before switching on the instrument, observe the information on appropriate operating conditions provided in the data sheet. In
particular, ensure the following:
●
All fan openings are unobstructed and the airflow perforations are unimpeded. A minimum distance of 10 cm to other objects is recommended.
●
The instrument is dry and shows no sign of condensation.
●
The instrument is positioned as described in the following sections.
●
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.
The base and extension modules mounted in the switch units are remotely operated via Ethernet (LAN) by the test software R&S WMS32 (V10.60 or later).
Additionally, configuration of the R&S OSP-B157WX requires the software
R&S OSP Panel.
Manual operation of the modules or remote control operation via the R&S OSP
Panel software tool is not possible.
The modules R&S OSP-B157W8, R&S OSP-B157W8PLUS and R&S OSPB157WX are delivered with a factory calibration, conforming to the standards of
the German national accreditation body. The calibration data is saved in the modules.
For operation of the modules, their remote control, measurement examples,
maintenance and troubleshooting, refer to the following documentation:
40Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
●
The user manual of the R&SOSP-B157W8, R&SOSP-B157W8PLUS and
(PLUS)
R&S®OSP‑B157WX
Operating the Modules
R&SOSP-B157WX
●
The operating manual of the R&S OSP switch units (see chapter on
R&S EMC32 software)
●
The help function of the R&S WMS32 software package, which is part of the
R&S RF Test Suite (requires a license)
We recommend that you Use RF connector adapters as port savers for the
DUT ports of the module R&S OSP-B157W8 and R&S OSP-B157W8PLUS.
41Getting Started 1178.5808.02 ─ 03
R&S®OSP‑B157W8
Index
(PLUS)
R&S®OSP‑B157WX
Index
Symbols
2.4 GHz frequency band ........................... 5
5 GHz frequency band .............................. 5