R&S®TS-PCA3
Test System Versatile Platform
R&S®CompactTSVP
User Manual
(;ÂW8<)
1152390812
Version 19
This manual describes the following R&S®TSVP models:
●
R&S®TS-PCA3 (1152.2518.02)
© 2021 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1152.3908.12 | Version 19 | R&S®TS-PCA3
The following abbreviations are used in this manual: R&S®TS-PCA3 is abbreviated to R&S TS-PCA3.
1
Risk of injury and instrument damage
The instrument must be used in an appropriate manner to prevent
personal injury or instrument damage.
● Do not open the instrument casing.
● Read and observe the "Basic Safety Instructions" delivered as
printed brochure with the instrument.
● Read and observe the safety instructions in the following sections.
Note that the data sheet may specify additional operating conditions.
● Keep the "Basic Safety Instructions" and the product documentation
in a safe place and pass them on to the subsequent users.
Riesgo de lesiones y daños en el instrumento
El instrumento se debe usar de manera adecuada para prevenir
descargas eléctricas, incendios, lesiones o daños materiales.
● No abrir la carcasa del instrumento.
● Lea y cumpla las "Instrucciones de seguridad elementales"
suministradas con el instrumento como folleto impreso.
● Lea y cumpla las instrucciones de seguridad incluidas en las
siguientes secciones. Se debe tener en cuenta que las
especificaciones técnicas pueden contener condiciones adicionales
para su uso.
● Guarde bien las instrucciones de seguridad elementales, así como
la documentación del producto, y entréguelas a usuarios
posteriores.
Safety Instructions
Instrucciones de seguridad
Sicherheitshinweise
Consignes de sécurité
1171.1307.42 - 05
2
Gefahr von Verletzungen und Schäden am Gerät
Betreiben Sie das Gerät immer ordnungsgemäß, um elektrischen
Schlag, Brand, Verletzungen von Personen oder Geräteschäden zu
verhindern.
● Öffnen Sie das Gerätegehäuse nicht.
● Lesen und beachten Sie die "Grundlegenden Sicherheitshinweise",
die als gedruckte Broschüre dem Gerät beiliegen.
● Lesen und beachten Sie die Sicherheitshinweise in den folgenden
Abschnitten; möglicherweise enthält das Datenblatt weitere
Hinweise zu speziellen Betriebsbedingungen.
● Bewahren Sie die "Grundlegenden Sicherheitshinweise" und die
Produktdokumentation gut auf und geben Sie diese an weitere
Benutzer des Produkts weiter.
Risque de blessures et d'endommagement de l'appareil
L'appareil doit être utilisé conformément aux prescriptions afin d'éviter
les électrocutions, incendies, dommages corporels et matériels.
● N'ouvrez pas le boîtier de l'appareil.
● Lisez et respectez les "consignes de sécurité fondamentales"
fournies avec l’appareil sous forme de brochure imprimée.
● Lisez et respectez les instructions de sécurité dans les sections
suivantes. Il ne faut pas oublier que la fiche technique peut indiquer
des conditions d’exploitation supplémentaires.
● Gardez les consignes de sécurité fondamentales et la
documentation produit dans un lieu sûr et transmettez ces
documents aux autres utilisateurs.
1171.1307.42 - 05
R&S®TS-PCA3
1.1 Foreword........................................................................................................................9
1.2 Related Documentation................................................................................................ 9
1.3 Purpose of the User Manual.........................................................................................9
1.4 Explanation of Symbols............................................................................................. 10
2.1 General.........................................................................................................................12
2.2 Safety Instructions......................................................................................................13
3.1 Usage........................................................................................................................... 14
Contents
Contents
1 User Information.................................................................................... 9
2 Safety.................................................................................................... 12
3 Description........................................................................................... 14
3.1.1 General......................................................................................................................... 14
3.1.2 Explanation of Terms.....................................................................................................14
3.1.3 System Information....................................................................................................... 15
3.2 Views............................................................................................................................ 17
3.3 Construction................................................................................................................18
3.3.1 Case..............................................................................................................................18
3.3.2 Slot Layout.................................................................................................................... 20
3.3.2.1 Plan View...................................................................................................................... 20
3.3.2.2 Side View...................................................................................................................... 21
3.3.3 Backplanes....................................................................................................................21
3.3.3.1 cPCI Backplane.............................................................................................................21
3.3.3.2 Analog Bus Backplane.................................................................................................. 25
3.3.3.3 Power Backplane.......................................................................................................... 27
3.3.3.4 Backplane Extension R&S TS-PXB2 (Option).............................................................. 27
3.3.4 Ground Concept............................................................................................................27
3.3.5 Geographical Addressing of the Slots with GA0 ... 1.................................................... 28
3.3.6 CAN Bus....................................................................................................................... 29
3.3.7 Configurations with several Frames or Option R&S TS-PXB2......................................30
3.3.8 Switching the PSU........................................................................................................ 31
3.3.9 System Controller..........................................................................................................31
3.3.10 Line Connection and Power Switch.............................................................................. 32
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R&S®TS-PCA3
3.3.11 Cooling.......................................................................................................................... 32
3.3.12 Option R&S TS-PK04....................................................................................................32
3.4 System Module R&S TS-PSYS1.................................................................................33
3.4.1 General......................................................................................................................... 33
3.4.2 Characteristics.............................................................................................................. 33
3.4.3 Circuit Diagram of the R&S TS-PSYS1.........................................................................33
3.4.4 Structure of the R&S TS-PSYS1...................................................................................34
3.4.5 Functional Description of the R&S TS-PSYS1..............................................................36
3.4.5.1 Control...........................................................................................................................36
3.4.5.2 System Functions..........................................................................................................36
3.4.5.3 System Clock................................................................................................................ 38
3.4.5.4 Signal Looping.............................................................................................................. 38
3.4.5.5 Local Signal Outputs..................................................................................................... 38
Contents
3.4.5.6 User CAN Controller..................................................................................................... 38
3.4.6 Driver Software............................................................................................................. 39
3.4.7 Self-Test........................................................................................................................ 39
3.5 Function Description.................................................................................................. 39
3.6 Permitted Module Configuration................................................................................39
4 Commissioning.................................................................................... 42
4.1 Safety Instructions......................................................................................................42
4.2 Setting Up.................................................................................................................... 42
4.2.1 Requirements for Repeatable Measurements.............................................................. 42
4.2.2 Rack Mounting.............................................................................................................. 42
4.2.3 Desktop Setup...............................................................................................................43
4.2.4 Operating Position.........................................................................................................43
4.3 Installation................................................................................................................... 44
4.3.1 Safety Instructions.........................................................................................................44
4.3.2 Compatibility..................................................................................................................44
4.3.3 Module Installation........................................................................................................ 44
4.3.4 Driver Installation.......................................................................................................... 45
4.4 Connections................................................................................................................ 46
4.4.1 Line Inlet........................................................................................................................46
4.4.2 Connections at the Rear............................................................................................... 46
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R&S®TS-PCA3
4.4.3 Connections at the Front...............................................................................................47
4.5 Cabling......................................................................................................................... 47
4.5.1 Concept.........................................................................................................................47
4.5.2 Analog Bus....................................................................................................................49
4.5.3 PXI Trigger Bus.............................................................................................................49
4.5.4 Internal Cabling of Short cPCI Modules........................................................................ 49
4.5.5 External Cabling............................................................................................................50
4.5.6 Opening the Case......................................................................................................... 51
5.1 General.........................................................................................................................53
5.2 Powering the Unit ON and OFF..................................................................................53
5.3 Self-Test....................................................................................................................... 53
Contents
5 Operation.............................................................................................. 53
5.4 Instrument Soft Panels............................................................................................... 53
6 Maintenance......................................................................................... 54
6.1 Important User Information........................................................................................54
6.2 Cleaning....................................................................................................................... 54
6.3 Fuse Replacement...................................................................................................... 55
7 Plug-In Modules................................................................................... 56
7.1 General.........................................................................................................................56
7.2 Configuration Instructions......................................................................................... 57
8 Interface Description........................................................................... 58
8.1 c-PCI-Backplane..........................................................................................................58
8.1.1 Position of Interfaces.....................................................................................................58
8.1.2 cPCI Connectors........................................................................................................... 59
8.1.2.1 General......................................................................................................................... 59
8.1.2.2 Slot 1 (System)..............................................................................................................60
8.1.2.3 Slot 3 and 4 (cPCI peripheral).......................................................................................60
8.1.2.4 Slot 5 ... 14 (PXI peripheral / Rear I/O)......................................................................... 61
8.1.2.5 Slot 15 (PXI peripheral / Rear I/O for TS-PSYS)...........................................................63
8.1.2.6 Slot 16 (CAN)................................................................................................................ 65
8.1.3 Connector X0 (P47)...................................................................................................... 66
8.1.4 ATX Connectors............................................................................................................ 67
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R&S®TS-PCA3
8.1.5 Fan Connectors X90, X91, X92, X93............................................................................ 68
8.1.6 Expansion Connector X80............................................................................................ 68
8.1.7 Jumper Field................................................................................................................. 69
8.1.8 IPMB0........................................................................................................................... 69
8.2 Analog Bus Backplane............................................................................................... 69
8.2.1 Position of Interfaces.....................................................................................................69
8.2.2 Analog Bus Connectors X1 ... X16................................................................................70
8.2.3 Analog Bus Connector X21...........................................................................................70
8.2.4 Analog Bus Connector X22...........................................................................................71
8.3 Power Backplane (Option)......................................................................................... 72
8.3.1 Position of Interfaces.....................................................................................................72
8.3.2 Power Backplane Utility Connector X13....................................................................... 72
8.3.3 Power Backplane ATX Connector X12..........................................................................72
Contents
8.3.4 Power Backplane Connector X16................................................................................. 73
8.3.5 Connector X1 (P47)...................................................................................................... 73
8.4 Interfaces of the R&S TS-PSYS1............................................................................... 75
8.4.1 R&S TS-PSYS1 Connector X1..................................................................................... 75
8.4.2 R&S TS-PSYS1 Connector X20................................................................................... 76
8.4.3 R&S TS-PSYS1 Connector X30................................................................................... 76
8.4.4 R&S TS-PSYS1 Jumper Field X40............................................................................... 77
8.4.5 R&S TS-PSYS1 Jumper JP2........................................................................................ 78
8.4.6 R&S TS-PSYS1 Jumper JP6 and JP7.......................................................................... 78
8.4.7 R&S TS-PSYS1 Jumper JP8........................................................................................ 78
8.5 External Analog Interface...........................................................................................78
8.5.1 Analog Bus Connector X2.............................................................................................78
8.6 Backplane Extension R&S TS-PXB2 (Option).......................................................... 80
8.6.1 Jumpers........................................................................................................................ 80
8.6.2 Rear panel slot A4 / CAN.............................................................................................. 80
8.6.3 Rear Panel Slot A4 / DIO of Slot A2..............................................................................80
8.6.4 Rear Panel X1 of Slot A1.............................................................................................. 81
9 Technical Data...................................................................................... 83
Annex.................................................................................................... 84
6User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
A Appendix...............................................................................................84
A.1 R&S TS-PCA3 Backplane Versions........................................................................... 84
A.1.1 Effects of the R&S TS-PCA3 backplane redesign.........................................................84
A.1.2 Effects of the TS-PCA3 backplane redesign V4.0.........................................................84
A.1.2.1 Reason..........................................................................................................................84
A.1.2.2 Steps taken................................................................................................................... 85
A.1.2.3 Effects........................................................................................................................... 85
A.1.3 Effects of the versions on individual modules............................................................... 86
A.1.3.1 Can be used in slots 5 to 14 without any restrictions.................................................... 86
A.1.3.2 Version-dependent effects.............................................................................................87
Contents
7User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
Contents
8User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
1 User Information
1.1 Foreword
User Information
Purpose of the User Manual
We congratulate you on your purchase of a ROHDE & SCHWARZ Test System Versa-
tile Platform R&S TS-PCA3.
We would emphasize that only attendance at one of our regular inhouse training seminars can ensure your successful operation of the Test System Versatile Platform in the
long term.
Please do not hesitate to contact us should you have any queries whilst working with
the Test System Versatile Platform. We look forward to working with you
GmbH & Co. KG
1.2 Related Documentation
Comprehensive documentation is supplied to enable you to use the Test System Versatile Platform R&S TS-PCA3 efficiently. It consists of the following documents:
●
R&S TS-PCA3 User Manual
●
Software User Manuals R&S GTSL, R&S EGTSL and R&S IC-Check
●
User Manuals for the separate modules
●
Data Sheets for the separate modules
●
Service Manual
In the event of any discrepancies between data in this manual and the technical data in
the data sheet, the data sheet takes precedence.
1.3 Purpose of the User Manual
This User Manual provides the information that is necessary for
●
the commissioning and
●
the proper and safe operation
of the Test System Versatile Platform R&S TS-PCA3.
This User Manual must be carefully read by the operator/engineer who is responsible
for working with the R&S TS-PCA3 before it is powered up for the first time.
9User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
1.4 Explanation of Symbols
User Information
Explanation of Symbols
As well as the operating instructions and the health and safety instructions which apply
at the site where the system is used, the applicable technical standards and regulations for safe and proper working must be complied with.
The operating instructions must be available at or near the R&S TS-PCA3 at all times.
The owner must supplement the operating instructions with national accident prevention and environmental protection regulations as appropriate.
The Test System Versatile Platform R&S TS-PCA3 has been manufactured in accordance with accepted engineering practice and the latest scientific and technical findings.
Nevertheless there are certain risks which cannot be designed out of equipment.
Additional safety instructions have been developed to provide adequate safety for the
personnel working on the R&S TS-PCA3.
A satisfactory level of safety when using the R&S TS-PCA3 cannot be guaranteed
unless these instructions are followed.
Certain sections of text are specially highlighted. These sections have the following
meaning:
DANGER!
Failure to follow instructions can result in fatal personal injury!
ELECTROCUTION HAZARD!
Failure to follow instructions can result in fatal personal injury!
NOTICE!
Failure to following instructions can cause damage to the Test System Versatile Platform R&S TS-PCA3.
NOTICE!
Failure to follow instructions can result in incorrect measurements.
10User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
User Information
Explanation of Symbols
Highlights important details to which special attention must be paid and that make work
easier.
11User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
2 Safety
2.1 General
Safety
General
The Test System Versatile Platform must be operated in accordance with the safety
regulations which apply in the owner's country.
Safety risks created by an application that is based on the Test System Versatile Platform must be eliminated by suitable additional arrangements (e.g. integration in the
Emergency Stop circuit).
Failure to observe the safety regulations governing the operation of the Test System
Versatile Platform shall void any liability or guarantee claims against ROHDE &
SCHWARZ GmbH & Co. KG.
EMC Suppression
EMC - Operating Instructions
The R&S CompactTSVP is a class-A device in keeping with CISPR 11 / EN 55011. It is
suitable for use in industrial environments and areas directly connected to a low-voltage power supply that (also) supplies residential buildings.
Due to occurring grid-bound as well as radiated disturbance variables there may be
problems to ensure the electromagnetic compatibility in other environments (living
quarters, for example).
USB and LAN (CAT5e) cables that are connected to the system controller must be
double-shielded cables. A simple shield suffices for all other cables.
Skilled Person
Skilled person is a term applied to persons who have training or experience in the
equipment technology, particularly in knowing the various energies and energy magnitudes used in the equipment.
Skilled persons are expected to use their training and experience to recognize energy
sources capable of causing pain or injury and to take action for protection from injury
from those energies. Skilled persons should also be protected against unintentional
contact or exposure to energy sources capable of causing injury.
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R&S®TS-PCA3
2.2 Safety Instructions
Safety
Safety Instructions
ELECTROCUTION HAZARD!
Before opening the case, the Test System Versatile Platform must be powered off and
isolated from the power supply!
The Test System Versatile Platform may only be opened by skilled person!
Also the rear side modules may only be exchanged by skilled person.
The appropriate regulations governing work carried out on electrical equipment must
be complied with.
The R&S TS-PCA3 must be isolated from the electrical supply before work commences.
Risk of electric shock
The fuse is part of the main power supply. Therefore, handling the fuse while power is
on can lead to electric shock. Before opening the fuse holder, make sure that the
instrument is switched off and disconnected from all power supplies.
Always use fuses supplied by Rohde & Schwarz as spare parts, or fuses of the same
type and rating.
Shock Hazard
The production test platforms R&S CompactTSVP and R&S PowerTSVP are designed
for operating voltages up to 125 V. When working with high voltages, this voltage can
apply to the analog bus connector X2. Therefore, the cable TS-PK01 must be always
connected on both sides with the test systems R&S CompactTSVP and R&S PowerTSVP.
Only the cable TS-PK01 1166.4147.02 is allowed to be used with the analog bus connector X2.
Test applications using hazardous active voltages (above 30 V r.m.s and 42,4 V peak
or 60 V d.c) must be operated by a skilled person only. The appropriate regulations
governing work carried out on electrical equipment must be complied with.
The electrical equipment fitted to the R&S TS-PCA3 must be checked at regular intervals. Defects such as loose connections, scorched cables etc. must be rectified immediately.
The enclosed safety sheet must be complied with.
13User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
3 Description
3.1 Usage
3.1.1 General
Description
Usage
The Produktionstestplattform R&S TS-PCA3 is a standardized modular platform for
the program-controlled testing of modules and terminals in the factory or laboratory.
With its flexible configuration and the use of worldwide standards, it can be perfectly
adapted to suit the needs of the user.
Larger ATE (Automatic Test Equipment) systems can be created by combining R&S
TS-PCA3 and PowerTSVP (TS-PWA3). The production test platform is intended for
use with a control processor which performs the test on the test devices by means of
peripheral modules. This control processor is known as the system controller and
should preferably be in the R&S TS-PCA3. However a standard PC can also be used
running across a suitable interface with the controller. The system controller executes
user-created sequences that define the test procedures and specification limits.
The modules plugged into the R&S TS-PCA3 can be used for the creation of test and
control signals and for the measuring related evaluation of the response from the UUT.
For this purpose they are able to pass signals between each other and select signals
under program control and pass them to external measuring systems.
The peripheral modules can be quickly and flexibly adapted to the test devices by preceding the R&S TS-PCA3 with an adapter frame which connects the signals securely
and with a low rate of wear.
If the production test requires switching functions with a large number of channels or
the switching of high currents, then the R&S TS-PCA3 can be supplemented by a R&S
TS-PWA3. The R&S TS-PWA3 is controlled via the CAN-Bus of the R&S TS-PCA3 by
the system controller.
3.1.2 Explanation of Terms
The following terms and standards are used in this manual:
CompactPCI (abbreviated to “cPCI” in this document) is an open standard of the
PICMG (PCI Industrial Manufacturers Group) that adapts the PCI standard for industrial applications. It uses high-grade connection techniques and mechanical components, and applies the same electrical specifications as the PCI standard. This makes
it possible to use inexpensive components and existing PCI developments even under
industrial conditions. Other features include a high integration density, the option of a
19" installation and shielding for the plug-in modules. Its definition as an open standard
means that a large, worldwide variety of cards is available.
14User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
Description
Usage
PXI (PCI eXtensions for Instrumentation) is a standard defined by National Instruments
which expands the CompactPCI, using its mechanical specifications and the connection with the system controller. The PXI standard is fully compatible and also defines a
number of additional signals which are useful for measuring applications, such as the
PXI Triggerbus.
PCI-PCI bridges are used to connect a number of cPCI or PXI segments, thereby
increasing the number of peripheral slots in cPCI or PXI systems.
CAN (Controller Area Network) is a serial bus system whose high system and configuration flexibility is achieved by a content-oriented addressing scheme, i.e. it defines socalled “message identifiers“ and not device addresses. Systems can be added to an
existing network without the need for hardware or software modifications. The CAN
protocol is defined in ISO 11898.
Rear I/O is the name given to a design that allows input and output lines of the cPCI
connectors P1 and P2 to be accessed from the rear of a backplane. Pluggable Rear
I/O modules can be used for this purpose in the R&S TS-PCA3 and the R&S TSPWA3.
3.1.3 System Information
The R&S TS-PCA3 has a modular structure that allows a range of system configurations tailored to the specific needs of the user.
Up to 13 cPCI/PXI modules can be fitted in addition to the system controller (slot 1). A
further slot (slot 16) is provided for special R&S plug-in modules (without J1 connector). Slots A3, A4 are fitted with a PSU as standard. An optional R&S TS-PCPA power
pack or the optional R&S TS-PXB2 backplane extension can be plugged into slots A1
and A2. Slots 1 to 16 provide access to the analog bus. The CAN bus is available at
slots 5 to 16 (starting with backplane version V4.x in slots 3 and 4 as well). If an
optional R&S TS-PXB2 is used, the CAN bus is also available at slots A1 and A2.
There is space for rear I/O modules in the rear section of the R&S TS-PCA3.
The configuration of the R&S TS-PCA3 is shown in Figure 3-1.
15User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
Description
Usage
Figure 3-1: Configuration of the R&S TS-PCA3
Starting with backplane version V4.x, some changes have been made to details to
avoid incompatibilities with some third-party modules. The effects on the configurability
of modules are described in Chapter 7.2, "Configuration Instructions", on page 57.
The use of standard industrial PC's as system controllers makes it possible to run a
wide range of software packages from the PC sector.
Table 3-1: Software Standards
System Standards
Operating system: Windows XP(™), Windows 7(™)
Test software: LabWindows/CVI(™), Visual Studio®), TestStand(™)
Card drivers: Drivers based on VISA/IVI
Table 3-2 summarizes some further characteristics of the R&S TS-PCA3 that are
important for a Test System Versatile Platform.
Table 3-2: Other Characteristics
Other Characteristics
Powerful cPCI PSU for 250 W (expandable to 500 W)
Slot CPU's of different power classes can be used
The internal analog bus facilitates the distribution of measurement/stimuli signals between the cPCI plug-in
modules without additional cabling.
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R&S®TS-PCA3
3.2 Views
Description
Views
Other Characteristics
Optional: Front mounted adapter interface on the R&S TS-PCA3 that uses spring contacts to facilitate rapid
and high-pole contacting with the test devices (see Figure 3-4 ).
System serviceability is monitored by a built-in self-test capability and system monitor (operating voltages,
temperature)
Figure 3-2 and Figure 3-3 show the R&S TS-PCA3 with slots covered
Figure 3-2: Front View
Figure 3-3: Rear View
The R&S TS-PCA3 can be operated with an adapter interface (optional) which is
flange-mounted to the front panel (see Figure 3-4)
17User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
Description
Construction
Figure 3-4: Adapter Interface
3.3 Construction
3.3.1 Case
The R&S TS-PCA3 uses the standard ROHDE & SCHWARZ case of the “Design
2000”.
Figure 3-5: BW 2000 Case
18User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
Description
Construction
Table 3-3: Features of the BW 2000 Case
HF-immune case to Rohde & Schwarz “Design 2000”
Dimensions: 19", height 4U, 430 mm deep
Use as desktop unit or rack-mounted case
Mounted in 19" rack using the telescopic slide set or on support rails
Side case handles that remain on the unit when mounted in the rack.
Four rugged detachable rubber feet provide rear protection.
Unused slots can be covered by front sub-panels that maintain the integrity of the HF-immunity. Contact
springs are mounted between the individual front sub-panels for this purpose.
The case is suitable for 3U high plug-in boards.
The remaining space in the case can be used for adaption to the standard UUT connector or for concealed
(cross) cabling.
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R&S®TS-PCA3
3.3.2 Slot Layout
3.3.2.1 Plan View
Description
Construction
Figure 3-6: Plan View (Example)
20User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
3.3.2.2 Side View
3.3.3 Backplanes
Description
Construction
Figure 3-7: Side View
The R&S TS-PCA3 contains the following backplanes:
●
cPCI backplane with PICMG Power Interface and Rear I/O support
●
Analog bus backplane
●
Power backplane with PICMG Power Interface (optional)
Figure 3-8shows the backplanes with the bus systems. The assignment of the connec-
tors is detailed in Chapter 8, "Interface Description", on page 58.
Figure 3-8: Backplanes and Bus Systems
3.3.3.1 cPCI Backplane
The cPCI backplane is implemented as follows:
●
3 U
21User Manual 1152.3908.12 ─ 19
R&S®TS-PCA3
Description
Construction
●
72 HP
●
32 bit
●
33 MHz
●
V
= 5 V
i/o
The backplane fulfils the Hot-Swap capability according to Standard PICMG 2.1 Rev.
2.0 for the exchange of measuring and control cards during operation. The 32 bit area
conforms to PICMG 2.0 Rev. 3.0. It should be noted that ROHDE & SCHWARZ
TSVP modules (R&S TS-XXX) are not capable of hot swapping.
Connector X0 (P47) serves as a power interface for a cPCI standard PSU. An additional PSU can be plugged onto an optional power backplane, in which case the connection with the cPCI backplane is made with an ATX power supply cable.
Slots 1 to 8 are the first bus segment. Slots 9 to 15 form the second bus segment that
is connected to the first with a PCI-PCI bridge. Slot 15 with its rear exit for the P1 signals is designed to control the system module.
The Rear I/O conforms to IEEE 1101.11-1998. The P20 connectors at slots 3 and 4 are
manufactured to cPCI standard, 32 bit with Rear I/O. Voltages up to 125 VDC can be
applied at pins provided in the Rear I/O area.
Signals PXI_TRIG0 ... 7 and PXI_CLK10 according to standard PXI R2.0 are available
at the P20 connections in slots 5 to 16.
Local bus
The PXI local bus is not implemented. If necessary, wiring can be created between
adjacent slots by plugging in a customer-specific connection board (plugged into the
backplane).
CAN-Bus
The CAN bus *[1] is integrated as a further system bus in addition to the IPMB0 (slots
3 to 14) according to System Management Specification PICMG 2.9 R1.0, and is available at slots 5 to 16 (starting with backplane version V4.x in slots 3 and 4 as well). Signals CAN_L and CAN_H can be terminated at the bus end with a jumper and 120 Ohm
resistor ( Figure 3-9 ). Alternatively the bus can be extended externally with an X80
expansion connector.
* [1] to standard CAN 2.0b (1Mbit)
If the optional R&S TS-PXB2 backplane extension is used, the CAN bus is also available at slots A1 and A2. The R&S TS-PXB2 is connected to the main backplane via
X80. The use of the backplane extension does not change the termination principle.
Figure 3-9: CAN Bus Termination
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R&S®TS-PCA3
Description
Construction
Table 3-4: CAN Bus
Number
Lines
2 5 CAN_H: P20/C1
U
max
(VDC)
Pin
CAN_L: P20/D1
In the old design V1.0 - V3.0, the CAN bus is bussed directly, guided via PXI local bus
lines LBL10 and LBL11. In the most unfavorable case, this resulted in conflicts with
other PXI modules that were using the lines in a different way.
In the new design V4.0, the CAN bus is switched by PSYS1 to Slot15 and is directed to
the other slots 3-14. The two signals are only switched by PhotoMOS relays on the
backplane to the pins of a slot if a CAN module is detected in that slot. In that case the
switch behaves like an isolating relay and does not affect the signals of the LBxx. It is
able to isolate voltages up to ±60 V DC.
PCI slots 3 + 4 now have this switch in the backplane and are thus CAN-capable. The
CAN bus is continuously connected on slots 15 + 16 and (optional) on A1 +A2 without
switching.
A 330-Ohm pull-up resistor between P2/D18 and +5 V on each module is responsible
for detecting a CAN module and activating the CAN bus. Normal cPCI or PXI modules
according to specification apply this pin to GND or leave it open. This ensures the CAN
bus is never in conflict with analogue voltages of the local bus.
Figure 3-10: Wiring CAN bus
External additional signals (AUX)
Two additional external signals (for example power supply voltages) can be fed into a
module via J20 on slots 5 through 16. The signals can be fed in the area of the CPCI
power pack by the CPCI power supply, an internal AC/DC module or another external
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R&S®TS-PCA3
Description
Construction
signal sources. This can be used to provide a primary voltage to generate local supply
voltages (DC/DC converter), etc.
Table 3-5: External Additional Signals
Number
Lines
2 60 2 Input for ext. signals:
U
max
(VDC)
I
/ Slot (ADC) Pin
max
J20: AUX1 B20, E19
J20: AUX2 A20, D19
+5-V and +12-V lines from the P47 connector are routed on the screw bolts above slot
4. This makes it easy to connect AUX1 with +5 V and AUX2 with +12 V via current rail
or cable (see Figure 3-11).
Figure 3-11: Mountable Threaded Studs on the cPCI Backplane
The AUX pins assigned to slots 5 - 16 make it possible to direct two voltages from the
current rail on the upper backplane if a screw there connects the backplane signals
with the current rail. Currently in backplanes V1.1 through V3.0 two pins are hard connected to carry a higher current.
This is changed in backplane V4.0 so the two pins are not connected in normal state.
One pin (for example AUX1L) on the solder side is directed to the current rail and one
pin (AUX1R) on the module side is directed to the current rail as well. The connection
is not made until a screw with a nut is screwed in and connects the current rail and the
two copper rings in the layout. It may be preferably to insert a toothed washer to
ensure better contact.
Functionally this is no different than the previous version. The PXI specification is
observed except for the lack of a local bus daisy chain. Full current must not be drawn
unless the two pins are connected in parallel.
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R&S®TS-PCA3
3.3.3.2 Analog Bus Backplane
Description
Construction
Figure 3-12: Connecting the current rail to AUX signals
To simplify cabling, the R&S TS-PCA3 contains an analog bus with 8 signals. The analog bus backplane is located in the front above the cPCI backplane. A special layout
meets the need for high crosstalk damping and low capacitance of the signal lines to
GND.
The C module (2 mm connector system) is used as the connectors (X1...X16). Plug-in
modules with no analog bus connector access the analog bus via a 26-pin connector
(X22) and R&S switch modules. Signals IL1_x and IL2_x (Instrument Line) are passed
from slots 5 to 16 to connector X22.
The analog bus signals pass from connector X21 to connector X2 at the back of the
R&S TS-PCA3 (see Chapter 4.4.2, "Connections at the Rear", on page 46). The electrical characteristics of the analog lines are:
●
Voltage 125 VDC max.
●
Current 1 A max.
Concept of the Analog Bus
Figure 3-13: Principle of the Analog Bus
The analog bus in the R&S TS-PCA3 connects I/O channels of different plug-in modules to each other. These I/O channels may be connections of instruments (measuring
and stimuli devices) and connections of the test device. Up to 8 signals can be connected simultaneously (see Figure 3-13).
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R&S®TS-PCA3
Description
Construction
The analog bus can be used flexibly with the ROHDE & SCHWARZ- specific plug-in
modules. 8 equivalent lines are basically available (ABa1, ABa2, ABb1, ABb2, ABc1,
ABc2, ABd1, ABd2). External instruments are usually connected to the R&S TS-PCA3
with a rear I/O connection. The signals for the test device are made available at the
front-end connector of the various plug-in modules on the R&S TS-PCA3.
The analog bus can be used in different ways:
●
as 1 bus with 8 lines
●
in 2 part-buses with 4 lines each
The split of the analog bus into part-buses depends on the plug-in modules which are
used.
The analog bus concept of the R&S TS-PCA3 fully meets the requirements that are
frequently made in metrology:
●
A small number of bus lines for a high number of I/O channels (e.g. In-Circuit-Test
with 3 to 6 bus lines.)
●
As many signals as possible simultaneously for a moderate number of I/O channels (e.g. function test with 8 lines of 50 to 100 I/O channels).
●
Parallel test with split analog bus.
Line paths or higher-frequency signals are usually connected locally by special switching modules and not via the analog bus.
Typical Use of the Analog Bus
The use of the analog bus and individual bus lines is illustrated with available R&S
modules and standard modules (see Figure 3-14).
Figure 3-14: Use of the Analog Bus in the R&S TS-PCA3 (Example)
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