Pickering 4 785C Series Manuale utente

pickeringtest.com Issue 3.0, October 2023

PXI/PXIe Microwave Multiplexer Modules

4x-785C User Manual

Page (ii)

No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by any

means without the written permission of Pickering Interfaces.

Technical details contained within this publication are subject to change without notice.

FM38792

Page (iii)

Worldwide Technical Support and Product Information

Pickering Interfaces Headquarters

Stephenson Road, Clacton-on-Sea, CO15 4NL United Kingdom

Tel: +44 (0)1255-687900

e-mail: [email protected]

USA

Tel: (West) +1 541 471 0700

Tel: (East) +1 781 897 1710

e-mail: ussales@pickeringtest.com

France

Tel +33 9 72 58 77 00

e-mail: [email protected]

Germany

Tel: +49 89 125 953 160

e-mail: [email protected]

Sweden

Tel: +46 340-69 06 69

e-mail: [email protected]

Czech Republic

Tel: +420 558 987 613

e-mail: [email protected]

China

Tel: +86 4008 799 765

e-mail: [email protected]

Technical Support

For Technical Support please contact Pickering Interfaces either by phone, the website or via e-mail.

Warranty

All products manufactured by Pickering Interfaces are warranted against defective materials and workmanship for a period

of three years, excluding programmable power supplies, from the date of delivery to the original purchaser. Any product

found to be defective within this period will, at the discretion of Pickering Interfaces be repaired or replaced.

Products serviced and repaired outside of the warranty period are warranted for ninety days.

Extended warranty and service are available. Please contact Pickering Interfaces by phone, the website or via e-mail.

Environmental Policy

Pickering Interfaces operates under an environmental management system similar to ISO 14001.

Pickering Interfaces strives to fulﬁl all relevant environmental laws and regulations and reduce wastes and releases to the

environment. Pickering Interfaces aims to design and operate products in a way that protects the environment and the health

and safety of its employees, customers and the public. Pickering Interfaces endeavours to develop and manufacture products

that can be produced, distributed, used and recycled, or disposed of, in a safe and environmentally friendly manner.

Page (iv)

Meaning/Description Symbol

PROTECTIVE EARTH (GROUND)

To identify any terminal which is intended for connection to an

external conductor for protection against electric shock in case of a

fault, or the terminal of a protective earth (ground) electrode.

DANGEROUS VOLTAGE

To indicate hazards arising from dangerous voltages.

WARNING/CAUTION

An appropriate safety instruction should be followed or caution to a

potential hazard exists.

Refer to the relevant instructions detailed within the product

manual.

HEAVY

If this product is heavy reference should be made to the safety

instructions for provisions of lifting and moving.

STATIC SENSITIVE

To indicate that static sensitive devices are present and handling

precautions should be followed.

Safety Symbols

The following safety symbols may be used on the product and throughout the product documentation.

Product Safety

Page (v)

Contents

Copyright Statement........................................................................................................................................................(ii)

Technical Support and Warranty...................................................................................................................................(iii)

Product Safety...................................................................................................................................................................(iv)

Contents (this page).........................................................................................................................................................(v)

Warnings and Cautions...................................................................................................................................................(vi)

Section 1

Technical Speciﬁcation....................................................................................................................................................1.1

Section 2

Technical Description ......................................................................................................................................................2.1

Functional Description...............................................................................................................................................2.1

Mechanical Description .............................................................................................................................................2.2

Section 3

Installation.........................................................................................................................................................................3.1

Pre Operation Checks ................................................................................................................................................3.1

Hardware Installation................................................................................................................................................3.2

Software Installation..................................................................................................................................................3.2

Testing Operation........................................................................................................................................................3.3

Section 4

Programming Guide.........................................................................................................................................................4.1

Programming Options for Pickering PXI/PXIe Modules......................................................................................4.1

Module Architecture...................................................................................................................................................4.2

Programming the Module.........................................................................................................................................4.3

Using Pickering Drivers in LabVIEW.......................................................................................................................4.6

Section 5

Connector Information ....................................................................................................................................................5.1

Section 6

Trouble Shooting..............................................................................................................................................................6.1

Section 7

Maintenance Information................................................................................................................................................7.1

Page (vi)

Appendix A

Relay Dimensional Drawings.........................................................................................................................................A.1

Appendix B

Mounting Bracket Information.......................................................................................................................................B.1

Appendix C

Part Number List..............................................................................................................................................................C.1

Contents

Page (vii)

WARNING - Hazardous Environments Symbol

This product is not speciﬁcally designed for use in hazardous environments, for example in explosive

atmospheres. If the product is to be used in hazardous environments we recommend that the user ensures

suitable protective measures are taken.

CAUTION - Handling of Electrostatic-Sensitive Devices Symbol

Certain semiconductor devices used in this equipment are liable to damage due to static voltage. Observe the

following precautions when handling these devices in their unterminated state, or sub-assemblies containing

these devices:

• Persons removing sub-assemblies from equipment using these devices must be earthed by a wrist strap

and a resistor at the point provided on the equipment.

• Soldering irons used during the repair operations must be low voltage types with earthed tips and isolated

from the mains voltage by a double insulated transformer.

• Outer clothing worn must be unable to generate static charges.

• Printed Circuit Boards (PCBs) ﬁtted with these devices must be stored and transported in anti-static bags.

Warnings & Cautions

WARNING - Danger of Electric Shock Symbol

This module may contain hazardous voltages. Before removing the module from the rack remove all supplies

and disconnect user I/O signals.

Unused slots in the PXI/PXIe/LXI chassis are populated with blanking plates to prevent access to user I/O

signals that may be present. Blanking panels are available to order from Pickering in a variety of slot widths.

If the product is not used in this manner for example by using an extender card then additional care must be

taken to avoid contact with exposed signals.

CAUTION - Product Documentation Symbol

Suitably qualiﬁed & trained users should ensure that the accompanying documentation is fully read and

understood before attempting to install or operate the product.

Safety Instructions

All cleaning and servicing requires the equipment to be isolated and disconnected from the power source and user I/O signals

(refer to the Maintenance Section).

• Appropriate manual handling procedures should be followed as dictated by the weight of the individual module or the

combined weight of the modules & chassis.

• Should a fault occur with the module or chassis, immediately isolate and disconnect the incoming power to the chassis and

the user I/O signals.

• Ensure the equipment is installed, operated and maintained by trained and authorised personnel.

• For suitably equipped products in the event of an emergency press the red “emergency stop” button situated on the front of

the unit.

Page 1.1 pickeringtest.com

Section 1 - Technical Speciﬁcation

The 40-785C (PXI) and 42-785C (PXIe) range of PXI microwave

multiplexer modules are suitable for switching 50 Ω signals

up to 67 GHz. They are available in single or dual SP4T or

SP6T conﬁgurations with relays mounted on the front panel.

Remote versions are also available which can support up to

three multiplexers in a single slot.

The remote multiplexer versions, as well as occupying less

PXI panel space, allow the microwave relays to be placed

closer to the UUT and RF test equipment. This can shorten

the length of cables and improve system performance.

Remote versions are supplied with a 1.5 m interface cable.

The panel mounted 50 Ω terminated version occupies 3 slots

for the single version or 6 slots for the dual version. A 75 Ω

version is available with a bandwidth of 2.5 GHz and uses

Siemens 1.6/5.6 style connectors.

yAvailable as PXI or PXIe Modules

ySingle or Dual SP4T or SP6T Panel Mounted Multiplexer

yUp To 3 Remote SP4T or SP6T Multiplexers From Single

Slot Version

y50 Ω Versions With 3-67 GHz Bandwidth

y50 Ω Terminated and Unterminated Versions

y75 Ω Version With 2.5 GHz Bandwidth

yRelay Cycle Counting Included

yLED Indication

yVISA, IVI & Kernel Drivers Supplied for Windows

yPXI Version Supported by PXI or LXI Chassis

y3 Year Warranty

Microwave Multiplexer (Part No. 4x-785C) in

Single Unterminated Format

off

Single Unterminated SP6TSingle Unterminated SP4T

Single slot version

controls 1, 2 or 3

remotely mounted

microwave

multiplexers via

interface cables

The 4x-785C range is suitable for constructing complex

microwave switching networks and includes conﬁgurations

to suit most applications. Connection is by high performance

SMA, SMA 2.9, SMA 2.4, SMA 1.85 or N-type for 50 Ω versions.

These modules give you the highest RF and microwave

performance available within a Pickering switching system.

Although designed for microwave applications, they have

many uses in the RF spectrum where extremely low insertion

loss and ultra high isolation are critical.

Product Compatibility

The 4x-785C range has been introduced as an update to the

existing 40-785B family. These remain orderable but the new

4x-785C is recommended as it provides additional options

such as the PXIe control interface. The RF performance of the

4x-785C is identical to the 40-785B.

pickeringtest.com

4x-785C

PXI/PXIe Microwave Multiplexer

Issue 3.0 October 2022

Page 1.2 pickeringtest.com

Section 1 - Technical Speciﬁcation

off

MUX Bank 1

MUX Bank 2

MUX Bank 1

off

MUX Bank 2

off

MUX Bank 1

MUX Bank 2

off

MUX Bank 3

MUX Bank 1

off

MUX Bank 2

off

MUX Bank 3

Dual Unterminated SP6TDual Unterminated SP4T Triple Unterminated SP6TTriple Unterminated SP4T

off

Single Terminated SP6T

off

Single Terminated SP4T

off

Dual Terminated SP6T

off

Dual Terminated SP4T

off

MUX Bank 1

MUX Bank 2

MUX Bank 1

MUX Bank 2

off

Triple Terminated SP6T

off

Triple Terminated SP4T

off

MUX Bank 1

MUX Bank 2

MUX Bank 1

MUX Bank 2

off

MUX Bank 3 MUX Bank 3

4x-785C Terminated Multiplexer Range (triple versions are only available in remote mount format)

Relay Cycle Counting

To aid with module “health”

monitoring all versions are

provided with a relay cycle counting

cycle feature. The number of

operations per contact are stored

on the module and can be used to

determine if a relay is approaching

EOL. This information could allow

system connections to be revised

so that signals applied to heavily

used contacts are swapped with

lightly used contacts to prolong the

working life of the relay(s).

4x-785C Unterminated Multiplexer Range (triple versions are only

available in remote mount format)

4x-785C

pickeringtest.com Page 2

PXI/PXIe Microwave Multiplexer

Page 1.3 pickeringtest.com

Section 1 - Technical Speciﬁcation

pickering

MUX BANK 1

Remotely Mounted Microwave Multiplexers

3 off Interface Cables 1.5m Length

4x-785C

Single Slot

Version

MUX BANK 2MUX BANK 3

6 45

123

6 4

123

6 4

123

Interconnection Between 4x-785C Single Slot Version

and Remotely Mounted Microwave Multiplexers

Remote Mount Microwave Multiplexer (18-67 GHz) Range:

• Upper left, unterminated (all frequencies) relay.

• Upper right, terminated 26.5 GHz, 40 GHz or 50 GHz relay.

• Lower left, unterminated (all frequencies) relay mounted to optional bracket.

• Lower right, terminated 26.5 GHz, 40 GHz or 50 GHz relay mounted to optional bracket.

Remotely Mounted Microwave Multiplexer Versions

4x-785C

pickeringtest.com Page 3

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