Pickering PXI 40-785B User manual

pickeringtest.com
Issue 4.3 September 2022
40-785B User Manual
PXI Microwave Multiplexer Modules

Page (II) MICROWAVE MULTIPLEXER MODULE 40-785B
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Page (II) REED RELAY MODULE 40-110/115/120/125
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© COPYRIGHT (2022) PICKERING INTERFACES. ALL RIGHTS RESERVED.
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.
ISO 9001
Reg No. FM38792

Page (III)
MICROWAVE MULTIPLEXER MODULE 40-785B
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WARNING
For versions with SMA connectors, only the correct connector series should be mated with these
modules. The 40-785B range uses SMA, SMA-2.9 & SMA-2.4 connectors depending upon the module’s
frequency range, and the user should only mate the correct type to the module, failure to do so may
result in damage to the connector.
Also, it is important that the connector’s nut is properly tightened to the correct torque. For SMA
connectors, this should be with a 5/16 inch wrench and be 3-5 in·lbs (0.3 to 0.6 N·m) for brass, or 7-10
in·lbs (0.8–1.1 N·m) for stainless steel. For N-type connectors, this should be with an 18mm wrench and
be 15 in·lbs (1.7 N·m).
Page (III)
REED RELAY MODULE 40-110/115/120/125
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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 full 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.
Worldwide Technical Support and Product Information
pickeringtest.com
Germany
Tel: [phone]
E-mail: [email protected]
Sweden
Tel: [phone]
E-mail: [email protected]
USA
Tel: (West) [phone]
Tel: (East) [phone]
E-mail: [email protected]
Czech Republic
Tel: [phone]
E-mail: [email protected]
France
Tel [phone]
E-mail [email protected]
Pickering Interfaces Headquarters
Stephenson Road Clacton-on-Sea CO15 4NL United Kingdom
Tel: [phone]
E-Mail: [email protected]
China
Tel: [phone]
E-mail: [email protected]

Page (IV) MICROWAVE MULTIPLEXER MODULE 40-785B
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Page (IV) REED RELAY MODULE 40-110/115/120/125
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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.
!
kg
SAFETY SYMBOLS
PRODUCT SAFETY
The following safety symbols may be used on the product and throughout the product documentation.

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MICROWAVE MULTIPLEXER MODULE 40-785B
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Copyright Statement ...................................................................II
Technical Support and Warranty................................................III
Product Safety .............................................................................IV
Contents (this page)....................................................................V
Warnings and Cautions ..............................................................VII
Section 1
Technical Specication...............................................................1.1
Section 2
Technical Description .................................................................2.1
Functional Description..........................................................2.1
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 Modules ............4.1
Module Architecture..............................................................4.2
Programming The Module ....................................................4.3
Section 5
Connector Information................................................................5.1
Section 6
Trouble Shooting.........................................................................6.1
Section 7
Maintenance Information............................................................7.1
Appendix A
Relay Dimensional Drawings .....................................................A.1
Appendix B
Mounting Bracket Information ...................................................B.1
CONTENTS

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Page (VII)
MICROWAVE MULTIPLEXER MODULE 40-785B
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Page (VII)
REED RELAY MODULE 40-110/115/120/125
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WARNINGS AND CAUTIONS
WARNING - HAZARDOUS ENVIRONMENTS SYMBOL
atmospheres. If the product is to be used in hazardous environments we recommend that the user
ensures suitable protective measures are taken.
!
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 host 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 - 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:
1. 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.
2. 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.
3. Outer clothing worn must be unable to generate static charges.
4.
anti-static bags.
CAUTION - PRODUCT DOCUMENTATION SYMBOL
and understood before attempting to install or operate the product.
!
SAFETY INSTRUCTIONS
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.

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Page 1.1
MICROWAVE MULTIPLEXER MODULE 40-785B
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
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PXI Microwave Multiplexer Modules 40-785B
ISSUE 4.2 SEP 2022
ySingle or Dual 6 Channel Panel Mounted
Multiplexer
yUp To 3 Remote Multiplexers From Single Slot
Version
y50 Ω Versions With 3-50 GHz Bandwidth
y50 Ω Terminated and Unterminated Versions
y75 Ω Version With 2.5 GHz Bandwidth
yLED Indication
yVISA, IVI & Kernel Drivers Supplied for Windows
ySupported by PXI or LXI Chassis
y3 Year Warranty
3
4Com
MUX Bank 1
5
6
1
2
off
3
4Com
5
6
1
2
off
MUX Bank 2
Model 40-785B-522
Features 2 Separate Non
Terminated 6 Channel
Microwave Multiplexers
(model 40-785B-521 has 1
multiplexer bank)
Default State Shown
3
4
MUX Bank
5
6
1
2
COM
Model 40-785B-521-T
Features a single
Terminated 6 Channel
Microwave Multiplexer
(model 40-785B-522-T has 2
multiplexer banks)
Default State Shown
Single slot version controls
1, 2 or 3 remotely mounted
microwave multiplexers via
interface cables
The 40-785B range of PXI microwave multiplexer modules
are suitable for switching 50 Ω signals up to 50 GHz. They
are available in single or dual 6 channel 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 multiplexers are supplied with a 1.5m interface cable.
The panel mounted 50 Ω terminated version occupies 4 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.
The 40-785B range is suitable
for constructing complex
microwave switching networks
and includes switching
configurations to suit most
applications. Connection is
by high performance SMA,
SMA-2.9, SMA-2.4 or N-type
connectors for 50 Ω versions.
These modules give you the
highest RF and microwave
switching 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.

Page 1.2 MICROWAVE MULTIPLEXER MODULE 40-785B
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SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
pickeringtest.com
Specifications
General Multiplexer Information
Relay Manufacturer: Radiall
Configuration: SP6T Microwave MUX with
1, 2 or 3 independent banks.
LED Indicators: Multiplexers have blue LEDs
to indicate a closed RF path.
Operate Time: Typically 15ms
Maximum Cold Switch
Voltage: 100 V
Maximum Carry Current: 1 A
Specification - 3 GHz Versions
Characteristic Impedance: 50 Ω
Connectors: N-type
Bandwidth DC to 3 GHz
Isolation: 80 dB (0-3 GHz)
Insertion Loss: 0.2 dB (0-3 GHz)
VSWR: 1.2:1 (0-3 GHz)
Maximum RF Carry Power: 400 W (0-3 GHz)
Termination Power Rating: 1 W per termination,
3 W total per 6 channel
multiplexer.
Expected Life (Low Power): 3 GHz option,
>2 million operations
3 GHz terminated option,
>2 million operations
Typical VSWR Plot for 3 GHz
Terminated & Unterminated Versions
Typical Isolation (dB) Plot for 3 GHz
Terminated & Unterminated Versions
Typical Insertion Loss (dB) Plot for 3 GHz
Terminated & Unterminated Versions