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

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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
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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

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Microwave Multiplexer, 40-785B
pickeringtest.com
Specifications
Specification - 18 GHz Versions
Characteristic Impedance: 50 Ω
Connectors: SMA
Bandwidth DC to 18 GHz
Isolation: 80 dB (0-3 GHz)
70 dB (3-8 GHz)
60 dB (8-12.4 GHz)
60 dB (12.4-18 GHz)
Insertion Loss: 0.2 dB (0-3 GHz)
0.3 dB (3-8 GHz)
0.4 dB (8-12.4 GHz)
0.5 dB (12.4-18 GHz)
VSWR: 1.2:1 (0-3 GHz)
1.3:1 (3-8 GHz)
1.4:1 (8-12.4 GHz)
1.5:1 (12.4-18 GHz)
Maximum RF Carry Power: 240 W (0-3 GHz)
150 W (3-8 GHz)
120 W (8-12.4 GHz)
100 W (12.4-18 GHz)
Termination Power Rating: 1 W per termination,
3 W total per 6 channel
multiplexer.
Expected Life (Low Power): 18 GHz option
>5 million operations
18 GHz terminated option
>2 million operations
Typical Insertion Loss (dB) Plot for 18 GHz
Terminated Versions
Typical VSWR Plot for 18 GHz
Unterminated Versions
Typical Isolation (dB) Plot for 18 GHz
Unterminated Versions
Typical Insertion Loss (dB) Plot for 18 GHz
Unterminated Versions
Typical VSWR Plot for 18 GHz
Terminated Versions
Typical Isolation (dB) Plot for 18 GHz
Terminated Versions

Page 1.4 MICROWAVE MULTIPLEXER MODULE 40-785B
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SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
pickeringtest.com
Specifications
Specification - 26.5 GHz Unterminated Versions
Characteristic Impedance: 50 Ω
Connectors: SMA
Bandwidth DC to 26.5 GHz
Isolation: 80 dB (0-3 GHz)
70 dB (3-8 GHz)
60 dB (8-12.4 GHz)
60 dB (12.4-18 GHz)
50 dB (18-26.5 GHz)
Insertion Loss: 0.2 dB (0-3 GHz)
0.3 dB (3-8 GHz)
0.4 dB (8-12.4 GHz)
0.5 dB (12.4-18 GHz)
0.7 dB (18-26.5 GHz
VSWR: 1.2:1 (0-3 GHz)
1.3:1 (3-8 GHz)
1.4:1 (8-12.4 GHz)
1.5:1 (12.4-18 GHz)
1.7:1(18-26.5 GHz)
Maximum RF Carry Power: 240 W (0-3 GHz)
150 W (3-8 GHz)
120 W (8-12.4 GHz)
100 W (12.4-18 GHz)
40 W (18-26.5 GHz)
Expected Life (low power): 5 million ops per position
Typical Insertion Loss (dB) Plot for 26.5 GHz
Unterminated Versions
Typical VSWR Plot for 26.5 GHz
Unterminated Versions
Typical Isolation (dB) Plot for 26.5 GHz
Unterminated Versions

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MICROWAVE MULTIPLEXER MODULE 40-785B
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Microwave Multiplexer, 40-785B
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Specifications
Specification - 26.5 GHz Terminated Versions
Characteristic Impedance: 50 Ω
Connectors: SMA
Bandwidth DC to 26.5 GHz
Isolation: 80 dB (0-3 GHz)
70 dB (3-8 GHz)
60 dB (8-12.4 GHz)
60 dB (12.4-18 GHz)
55 dB (18-26.5 GHz)
Insertion Loss: 0.2 dB (0-3 GHz)
0.3 dB (3-8 GHz)
0.4 dB (8-12.4 GHz)
0.5 dB (12.4-18 GHz)
0.7 dB (18-26.5 GHz
VSWR: 1.2:1 (0-3 GHz)
1.3:1 (3-8 GHz)
1.4:1 (8-12.4 GHz)
1.5:1 (12.4-18 GHz)
1.7:1(18-26.5 GHz)
Maximum RF Carry Power: 240 W (0-3 GHz)
150 W (3-8 GHz)
120 W (8-12.4 GHz)
100 W (12.4-18 GHz)
40 W (18-26.5 GHz)
Termination power rating: 1 W per termination,
3 W total per 6 channel
multiplexer
Expected Life (low power): >2 million ops per position
Typical VSWR Plot for 26.5 GHz
Terminated Versions
Typical Isolation (dB) Plot for 26.5 GHz
Terminated Versions
Typical Insertion (dB) Loss Plot for 26.5 GHz
Terminated Versions

Page 1.6 MICROWAVE MULTIPLEXER MODULE 40-785B
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SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
pickeringtest.com
Specifications
Specification - 40 GHz Versions
Characteristic Impedance: 50 Ω
Connectors: SMA-2.9
Bandwidth DC to 40 GHz
Isolation: 70 dB (0-6 GHz)
60 dB (6-12.4 GHz)
60 dB (12.4-18 GHz)
55 dB (18-26.5 GHz)
50 dB (26.5-40 GHz)
Insertion Loss: 0.2 dB (0-6 GHz)
0.4 dB (6-12.4 GHz)
0.5 dB (12.4-18 GHz)
0.7 dB (18-26.5 GHz)
1.1 dB (26.5-40 GHz)
VSWR: 1.3:1 (0-6 GHz)
1.4:1 (6-12.4 GHz)
1.5:1 (12.4-18 GHz)
1.7:1(18-26.5 GHz)
2.2:1 (26.5-40 GHz
Maximum RF Carry Power: 40 W (0-6 GHz)
30 W (6-12.4 GHz)
25 W (12.4-18 GHz)
15 W (18-26.5 GHz)
5 W (26.5-40 GHz)
Termination power rating: 1 W per termination,
3 W total per 6 channel mux
Expected Life (Low Power): >2 million ops per position
Typical VSWR Plot for 40 GHz Terminated Versions
Typical Isolation (dB) Plot for 40 GHz Terminated Versions
Typical Insertion (dB) Loss Plot for 40 GHz
Terminated Versions
Typical Isolation (dB) Plot for 40 GHz
Unterminated Versions
Typical Insertion Loss (dB) Plot for 40 GHz
Unterminated Versions
Typical VSWR Plot for 40 GHz Unterminated Versions

Page 1.7
MICROWAVE MULTIPLEXER MODULE 40-785B
pickering SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
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Specifications
Specification - 50 GHz Versions
Characteristic Impedance: 50 Ω
Connectors: SMA-2.4
Bandwidth DC to 50 GHz
Isolation: 70 dB (0-6 GHz)
60 dB (6-12.4 GHz)
60 dB (12.4-18 GHz)
55 dB (18-26.5 GHz)
50 dB (26.5-40 GHz)
50 dB (40-50 GHz)
Insertion Loss: 0.2 dB (0-6 GHz)
0.4 dB (6-12.4 GHz)
0.5 dB (12.4-18 GHz)
0.7 dB (18-26.5 GHz)
0.9 dB (26.5-40 GHz)
1.2 dB (40-50 GHz)
VSWR: 1.3:1 (0-6 GHz)
1.4:1 (6-12.4 GHz)
1.5:1 (12.4-18 GHz)
1.7:1(18-26.5 GHz)
1.9:1 (26.5-40 GHz)
2.2:1 (40-50 GHz)
Maximum RF Carry Power: 40 W (0-6 GHz)
30 W (6-12.4 GHz)
25 W (12.4-18 GHz)
15 W (18-26.5 GHz)
5 W (26.5-40 GHz)
3 W (40-50 GHz)
Termination power rating: 1 W per termination,
3 W total per 6 channel
multiplexer
Expected Life (Low Power): >2 million operations per
position
Typical VSWR Plot for 50 GHz
Terminated & Unterminated Versions
Typical Isolation (dB) Plot for 50 GHz
Terminated & Unterminated Versions
Typical Insertion Loss (dB) Plot for 50 GHz
Terminated & Unterminated Versions

Page 1.8 MICROWAVE MULTIPLEXER MODULE 40-785B
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SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
pickeringtest.com
Specifications
Specification - 2.5 GHz Unterminated Version
Characteristic Impedance: 75 Ω
Connectors: 1.6/5.6
Bandwidth DC to 2.5 GHz
Isolation: 80 dB (0-1 GHz)
70 dB (1-2.5 GHz)
Insertion Loss: 0.2 dB (0-1 GHz)
0.3 dB (1-2.5 GHz)
VSWR: 1.2:1 (0-1 GHz)
1.3:1 (1-2.5 GHz)
Maximum RF Carry Power: 400 W (0-1 GHz)
240 W (1-2.5 GHz)
Expected Life (Low Power): >2 million operations per
position
Operating/Storage Conditions
Operating Conditions
Operating Temperature:
Humidity:
Altitude:
0 °C to +55 °C
Up to 90 % non-condensing
5000 m
Storage and Transport Conditions
Storage Temperature:
Humidity:
Altitude:
-20 °C to +75 °C
Up to 90 % non-condensing
15000 m
PXI & CompactPCI Compliance
The module is compliant with the PXI Specification 2.2.
Local Bus, Trigger Bus & Star Trigger are not implemented.
Uses a 33 MHz 32-bit backplane interface.
Safety & CE Compliance
All modules are fully CE compliant and meet applicable
EU directives: Low-voltage safety EN61010-1:2010,
EMC Immunity EN61326-1:2013,
Emissions EN55011:2009+A1:2010.
Power Requirements
+3.3 V +5 V +12 V -12 V
0 0.2 A 0.75 A 0
Connectors
PXI bus via 32-bit P1/J1 backplane connector.
Signals via coaxial connectors on microwave switches:
• 3 GHz, 50 Ω versions - N-type
• 18 GHz, 50 Ω versions - SMA
• 26.5 GHz, 50 Ω versions - SMA
• 40 GHz, 50 Ω versions - SMA-2.9
• 50 GHz, 50 Ω versions - SMA-2.4
• 2.5 GHz, 75 Ω versions - Siemens 1.6/5.6 75 Ω connectors
Mechanical Characteristics
Front panel mounted multiplexers:
• Single unterminated versions (except 3 GHz) - 3 PXI slots
• 3 GHz versions - 4 PXI slots
• Single terminated versions - 4 PXI slots
• Dual unterminated versions - 3 PXI slots
• Dual terminated versions - 6 PXI slots
Remote mounted multiplexer versions occupy one slot and
are supplied with a 1.5 m interface cable for each of the
supplied microwave relays.
3D models for all versions in a variety of popular file
formats are available on request.
Typical VSWR Plot for 2.5 GHz 75 Ω Versions
Typical Isolation (dB) Plot for 2.5 GHz 75 Ω Versions
Typical Insertion Loss (dB) Plot for 2.5 GHz 75 Ω Versions

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MICROWAVE MULTIPLEXER MODULE 40-785B
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Microwave Multiplexer, 40-785B
pickeringtest.com
Overview
pickering
MUX BANK 1
Remotely Mounted Microwave Multiplexers
3 off Interface Cables 1.5m Length
40-785B
Single Slot
Version
MUX BANK 2MUX BANK 3
6 45
123
6 4
5
123
6 4
5
123
Interconnection Between 40-785B Single Slot Version
and Remotely Mounted Microwave Multiplexers
Remote Mount Microwave Multiplexer (18-50 GHz) Range:
• Upper left, terminated 18 GHz relay.
• Upper middle, unterminated (all frequencies) relay.
• Upper right, terminated 26.5 GHz, 40 GHz or 50 GHz relay.
• Lower left, terminated 18 GHz relay mounted to optional bracket.
• Lower middle, 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

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SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
pickeringtest.com
Ordering Information
Mating Connectors & Cabling
For connection accessories for the 40-785B range please
refer to the 90-011D RF Cable Assemblies data sheet
where a complete list and documentation can be found for
accessories, or refer to the Connection Solutions catalog.
Product Order Codes
18G Hz Multiplexer Versions - 50 Ω
† Single 6 Chan, Panel mount, 50 Ω SMA
† Dual 6 Chan, Panel mount, 50 Ω SMA
40-785B-521
40-785B-522
Single 6 Chan, Panel mt, 50 Ω SMA, Term.
Dual 6 Chan, Panel mt, 50 Ω SMA, Term.
40-785B-521-T
40-785B-522-T
Single 6 Chan, Remote mount, 50 Ω SMA
Dual 6 Chan, Remote mount, 50 Ω SMA
Triple 6 Chan, Remote mount, 50 Ω SMA
40-785B-521-E
40-785B-522-E
40-785B-523-E
Single 6 Chan, Remote, 50 Ω SMA, Term.
Dual 6 Chan, Remote, 50 Ω SMA, Term.
Triple 6 Chan, Remote, 50 Ω SMA, Term.
40-785B-521-TE
40-785B-522-TE
40-785B-523-TE
26.5 GHz Multiplexer Versions - 50 Ω
‡ Single 6 Chan, Panel mount, 50 Ω SMA
‡ Dual 6 Chan, Panel mount, 50 Ω SMA
40-785B-531
40-785B-532
Single 6 Chan, Panel mt, 50 Ω SMA, Term.
Dual 6 Chan, Panel mt, 50 Ω SMA, Term.
40-785B-531-T
40-785B-532-T
Single 6 Chan, Remote mount, 50 Ω SMA
Dual 6 Chan, Remote mount, 50 Ω SMA
Triple 6 Chan, Remote mount, 50 Ω SMA
40-785B-531-E
40-785B-532-E
40-785B-533-E
Single 6 Chan, Remote, 50 Ω SMA, Term.
Dual 6 Chan, Remote, 50 Ω SMA, Term.
Triple 6 Chan, Remote, 50 Ω SMA, Term.
40-785B-531-TE
40-785B-532-TE
40-785B-533-TE
40 GHz Multiplexer Versions - 50 Ω
‡ Single 6 Chan, Panel mount, 50 Ω SMA-2.9
‡ Dual 6 Chan, Panel mount, 50 Ω SMA-2.9
40-785B-541
40-785B-542
Single 6 Chan, Panel mt, 50 Ω SMA-2.9, Term.
Dual 6 Chan, Panel mt, 50 Ω SMA-2.9, Term.
40-785B-541-T
40-785B-542-T
Single 6 Chan, Remote mount, 50 Ω SMA-2.9
Dual 6 Chan, Remote mount, 50
Ω SMA-2.9
Triple 6 Chan, Remote mount, 50
Ω SMA-2.9
40-785B-541-E
40-785B-542-E
40-785B-543-E
Single 6 Chan, Remote, 50Ω SMA-2.9, Term.
Dual 6 Chan, Remote, 50
Ω SMA-2.9, Term.
Triple 6 Chan, Remote, 50
Ω SMA-2.9, Term.
40-785B-541-TE
40-785B-542-TE
40-785B-543-TE
50 GHz Multiplexer Versions - 50 Ω
Single 6 Chan, Panel mount, 50 Ω SMA-2.4
Dual 6 Chan, Panel mount, 50 Ω SMA-2.4
40-785B-551
40-785B-552
Single 6 Chan, Panel mt, 50 Ω SMA-2.4, Term.
Dual 6 Chan, Panel mt, 50 Ω SMA-2.4, Term.
40-785B-551-T
40-785B-552-T
Single 6 Chan, Remote mount, 50 Ω SMA-2.4
Dual 6 Chan, Remote mount, 50 Ω SMA-2.4
Triple 6 Chan, Remote mount, 50 Ω SMA-2.4
40-785B-551-E
40-785B-552-E
40-785B-553-E
Single 6 Chan, Remote, 50 Ω SMA-2.4 , Term.
Dual 6 Chan, Remote, 50 Ω SMA-2.4, Term.
Triple 6 Chan, Remote, 50 Ω SMA-2.4 , Term.
40-785B-551-TE
40-785B-552-TE
40-785B-553-TE
2.5 GHz Multiplexer Versions - 75 Ω
Single 6 Chan, Panel mount, 75 Ω 1.6/5.6
Dual 6 Chan, Panel mount, 75 Ω 1.6/5.6
40-785B-751
40-785B-752
Single 6 Chan, Remote mount, 75 Ω 1.6/5.6
Dual 6 Chan, Remote mount, 75
Ω 1.6/5.6
Triple 6 Chan, Remote mount, 75
Ω 1.6/5.6
40-785B-751-E
40-785B-752-E
40-785B-753-E
3 GHz Multiplexer Versions - 50 Ω
Single 6 Chan, Panel mount, 50 Ω N-type 40-785B-561
Single 6 Chan, Panel mt, 50 Ω N-type, Term. 40-785B-561-T
Single 6 Chan, Remote mount, 50 Ω N-type
Dual 6 Chan, Remote mount, 50 Ω N-type
Triple 6 Chan, Remote mount, 50 Ω N-type
40-785B-561-E
40-785B-562-E
40-785B-563-E
Single 6 Chan, Remote, 50 Ω N-type, Term.
Dual 6 Chan, Remote, 50 Ω N-type, Term.
Triple 6 Chan, Remote, 50 Ω N-type, Term.
40-785B-561-TE
40-785B-562-TE
40-785B-563-TE
Product Customization
Pickering modules are designed and manufactured on our
own flexible manufacturing lines, giving complete product
control and enabling simple customization to meet very
specific requirements.
Customization can include:
• Alternative relay types
• Mixture of relay types
• Alternative number of relays
• Different performance specifications
All customized products are given a unique part number,
fully documented and may be ordered at any time in the
future. Please contact your local sales office to discuss.
Accessories
Microwave relay bracket for remote mounting:
Bracket for 40-785B-52x-E, 40-785B-53x-E,
40-785B-54x-E or 40-785B-55x-E 40-785A-521-E-MB
Bracket for 40-785B-52x-TE,
40-785B-53x-TE, 40-785B-54x-TE or
40-785B-55x-TE 40-785A-531-TE-MB
Bracket for 40-785B-56x-E or
40-785B-56x-TE 40-785A-561-TE-MB
Note: A single relay is mounted to each bracket, see user
manual for details. To mount more than one relay, order
multiples of the required part number.
† These models have equivalents in the 40-784A range that
occupy only two PXI slots.
‡ These models have been superceded with more
competitive options from model 40-784A, however remain
available for legacy requirements.
Legacy Relay Support
In January 2022 the SP6T terminated 18GHz relay was
replaced by the manufacturer due to obsolescence. The
alternate part has identical performance but utilises a
square mounting flange compared to the circular mount of
the previous relay.
Users of the remote mount SP6T terminated 18GHz
products should be aware that the mounting method has
changed and if purchasing the optional remote mount
bracket, an alternate part number should be used.
For relays supplied prior to January 2022 the round flange
based mounting bracket is available as part number
40-785A-521-TE-MB.

Page 1.11
MICROWAVE MULTIPLEXER MODULE 40-785B
pickering SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
pickeringtest.com
Supporting Products & Software
We also offer customized cabling and have a free online Cable Design Tool
that can be used to create custom cable solutions for many applications.
Visit: pickeringtest.com/cdt to start your design.
Mass Interconnect
We recommend the use of a mass interconnect solution when an
Interchangeable Test Adapter (ITA) is required for a PXI or LXI based
test system. Our modules are fully supported by both Virginia Panel and
MacPanel.
Pickering Reed Relays
We are the only switch provider with in-house reed relay manufacturing
capability via our Relay Division. These instrument grade reed relays feature
SoftCenter™ technology, ensuring long service life and repeatable contact
performance. To learn more, please go to: pickeringrelay.com
Chassis Compatibility
This PXI module must be used in a suitable chassis. It is compatible with the following chassis types:
• All chassis conforming to the 3U PXI and 3U Compact PCI (cPCI) specification
• Legacy and Hybrid Peripheral slots in a 3U PXI Express (PXIe) chassis
• Pickering Interfaces LXI or LXI/USB Modular Chassis
Chassis Selection Guide
Standard PXI or hybrid PXIe Chassis from any Vendor:
• Mix our 1000+ PXI switching & simulation modules with
any vendor’s PXI instrumentation
• Embedded or remote Windows PC control
• Real-time Operating System Support
• High data bandwidths, especially with PXI Express
• Integrated module timing and synchronization
Pickering LXI or LXI/USB Modular Chassis—only accept
our 1000+ PXI Switching & Simulation Modules:
• Ethernet or USB control enables remote operation
• Low-cost control from practically any controller
• LXI provides manual control via Web browsers
• Driverless software support
• Power sequencing immunity
• Ethernet provides chassis/controller voltage isolation
• Independence from Windows operating system
Connectivity Solutions
We provide a full range of supporting cable and connector solutions for all our switching products—20 connector families
with 1200+ products. We offer everything from simple mating connectors to complex cables assemblies and terminal blocks.
All assemblies are manufactured by Pickering and are guaranteed to mechanically and electrically mate to our modules.
Connectors & Backshells Multiway Cable Assemblies RF Cable Assemblies Connector Blocks

Page 1.12 MICROWAVE MULTIPLEXER MODULE 40-785B
pickering
SECTION 1 - TECHNICAL SPECIFICATION
Microwave Multiplexer, 40-785B
pickeringtest.com
Supporting Products & Software
© Copyright (2022) Pickering Interfaces. All Rights Reserved Pickering Interfaces maintains a commitment to continuous product development, consequently we reserve the right to vary from the description given in this data sheet.
Programming
Pickering provide kernel, IVI and VISA (NI & Keysight) drivers which are compatible with all Microsoft supported versions of
Windows and popular older versions. For a list of all supporting operating systems, please see: pickeringtest.com/os
The VISA driver is also compatible with Real-Time Operating Systems such as LabVIEW RT. For other RTOS support contact
Pickering. These drivers may be used with a variety of programming environments and applications including:
• Pickering Interfaces Switch Path Manager
• National Instruments products (LabVIEW, LabWindows/CVI, Switch Executive, MAX, TestStand, VeriStand, etc.)
• Microsoft Visual Studio products (Visual Basic, Visual C+)
• Keysight VEE and OpenTAP
• Mathworks Matlab
• Marvin ATEasy
• MTQ Testsolutions Tecap Test & Measurement Suite
Drivers for popular Linux distributions are available, other environments are also supported, please contact Pickering
with specific enquiries. We provide Soft Front Panels (SFPs) for our products for familiarity and manual control, as well as
comprehensive documentation and example programs to help you develop test routines with ease.
To learn more about software drivers and development environments, please go to: pickeringtest.com/software
Signal Routing Software
Our signal routing software, Switch Path Manager, automatically selects and energizes
switch paths through Pickering switching systems. Signal routing is performed by simply
defining test system endpoints to be connected together, greatly accelerating Test System
software development. To learn more, please go to: pickeringtest.com/spm
Diagnostic Relay Test Tools
eBIRST Switching System Test Tools are designed specifically for our PXI,
PCI or LXI products, these tools simplify switching system fault-finding by
quickly testing the system and graphically identifying the faulty relay.
To learn more, please go to: pickeringtest.com/ebirst
Three Year Warranty & Guaranteed Long-Term Support
All standard products manufactured by Pickering Interfaces are warranted against defective materials and workmanship
for a period of three years from the date of delivery to the original purchaser. Extended warranty and service agreements
are available for all our modules and systems with various levels to suit your requirements. Although we offer a 3-year
warranty as standard, we also include guaranteed long-term support—with a history of supporting our products for typically
15-20 years. To learn more, please go to: pickeringtest.com/support
Available Product Resources
We have a large library of product resources including success stories, product and support videos, articles and white
papers as well as application specific product brochures to assist when looking for the switching, simulation and
connection solutions you need. We have also published handy reference books on Switching Technology and for the PXI
and LXI standards.
To view, download or request any of our product resources, please visit: pickeringtest.com/resources