Pickering 40-540 User manual

pickeringtest.com
Issue 5.6 May 2023
40-540/541/542 User Manual
PXI Ultra High Density Matrix Modules

Page (II) ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
Page (II) REED RELAY MODULE 40-110/115/120/125
pickering
© COPYRIGHT (2023) 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)
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
Page (III)
REED RELAY MODULE 40-110/115/120/125
pickering
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) ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
Page (IV) REED RELAY MODULE 40-110/115/120/125
pickering
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.

Page (V)
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
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
Switching System Test Tools ...............................................7.1
Relay Lookup Tables - 40-540 ..............................................7.3
Relay Lookup Tables - 40-541 ..............................................7.7
Relay Lookup Tables - 40-542 ..............................................7.11
CONTENTS

Page (VI) ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
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THIS PAGE INTENTIONALLY BLANK

Page (VII)
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
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Page (VII)
2 AMP 1-POLE UHD MATRIX MODULES 40-575 / 576 / 577 / 578 / 579
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WARNINGS AND CAUTIONS
WARNING - HAZARDOUS ENVIRONMENTS SYMBOL
This product is not specically 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.
!
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.
Not to be used in safety critical circuits, refer to the Pickering Interfaces’ terms & conditions of sale.
This module must not be used for the switching of Mains Circuits. For the switching of voltages up
to the module’s full specication, Secondary Circuit power supplies and the Device Under Test must
be fully isolated from the Mains Circuit and the safety earth.
The host chassis must be correctly installed and be connected to mains or factory safety ground,
please refer to your chassis installation manual.
Diagram Showing Separation Between The Mains Circuit and Secondary Circuit / DUT
For the purposes of this document, a Mains Circuit is an installation classied as Overvoltage
Category II up to 300V. Separation between the Secondary Circuit and Mains Circuit is achieved
by a transformer in which the primary windings are separated from the secondary windings by
reinforced insulation, double insulation, or a screen connected to the protective conductor terminal.
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. Printed Circuit Boards (PCBs) tted with these devices must be stored and transported in
anti-static bags.
PXI Switching
Module
Device
Under Test
Power
Supply
Power
Supply
Host Chassis
Secondary Circuit
Mains
Circuit
Mains
Circuit
Mains/Factory
Safety Ground

Page (VIII) ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
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Page (VIII) 2 AMP 1-POLE UHD MATRIX MODULES 40-575 / 576 / 577 / 578 / 579
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CAUTION - PRODUCT DOCUMENTATION SYMBOL
Suitably qualied & trained users should ensure that the accompanying documentation is fully read
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.

Page 1.1
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
PXI Ultra High Density Matrix 40-540/541/542
ISSUE 14.4 APR 2023
Supported by eBIRST
These test tools simplify fault-finding by quickly testing the
system and graphically identifying the faulty relay.
For more information go to: pickeringtest.com/ebirst
yWorld’s Highest Density Single-Slot 3U PXI Reed
Relay Matrix Module With 528 Crosspoints
yUses High Reliability Pickering Ruthenium Reed
Relays For Maximum Performance
yMinimize Cost Using Partially Populated
Configurations - Available for All Models
ySwitch up to 150 V, 0.5 A with 10 W Max Power
yFast Operating Speed <300 µs
yDrivers Supplied for Windows & Linux,
Plus Support for Real-time Systems
yEase of Maintenance & Repair Through the
Use of Leaded Relays
ySupported by PXI or LXI Chassis
ySupported by
eBIRST ™
y3 Year Warranty
The world’s highest density single slot PXI reed relay
matrix module, the 40-540/541/542, is available as a 132x4,
66x8 or 33x16 matrix with 1-pole switching.
Typical applications include signal routing in functional
ATE and data acquisition systems. These matrices are
constructed using high reliability sputtered ruthenium reed
relays, offering >109 operations to give maximum switching
confidence with long life and stable contact resistance.
Larger matrices may be constructed by daisy chaining
the common signals from multiple modules. However, for
applications that require a very large matrix, Pickering’s
BRIC™ modules are best suited.
Pickering Interfaces can construct custom cable
assemblies for all of our PXI modules, please contact sales
office for assistance.
40-540-021 132 x 4 Matrix
X2 X4 X8 X1 X3 X5 X6 X7 X12 X9 X10 X11 X14 X16 X13 X15
X33 X31 X32
Y2
Y4
Y8
Y1
Y3
Y5
Y6
Y7
Matrix
Crosspoint
Y10
Y12
Y16
Y9
Y11
Y13
Y14
Y15
X2 X4 X8 X1 X3 X5 X6 X7 X12 X9 X10 X11 X14 X16 X13 X15
X66 X64 X65
Y2
Y4
Y8
Y1
Y3
Y5
Y6
Y7
Matrix
Crosspoint
X2 X4 X8 X1 X3 X5 X6 X7 X12 X9 X10 X11 X14 X13 X15 X132 X130 X131
Y2
Y4
Y1
Y3
Matrix
Crosspoint
X16
40-542-021 33 x 16 Matrix
40-541-021 66 x 8 Matrix
Front Panel Connector
The 40-540-021 module is based on the obsolete Molex
LFH series connector that has been superseded by a
Pickering commissioned form, fit, function equivalent. The
new connector series is 100% compatible with the Molex
connectors allowing either gender of Pickering connector
to mate with the corresponding Molex part without issue.

Page 1.2 ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
SECTION 1 - TECHNICAL SPECIFICATION
Ultra High Density Matrix, 40-540/541/542
pickeringtest.com
Overview
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40-540 Fully Populated 132x4 Matrix
40-540 Partially Populated 132x2 Matrix
40-540 Partially Populated 100x4 Matrix
123412341234
1 2 3 4 5 6 7 8 9 01 1 2 3 4 5 6 7 8 9 02
1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9 0
2 2 2 2 2 2 2 2 2 31
2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6
1 2 3 4 5 6 7 8 9 01 1 2 3 4 5 6 7 8 9 02
1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9 0
2 2 2 2 2 2 2 2 2 31
2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6
1 2 3 4 5 6 7 8 9 01 1 2 3 4 5 6 7 8 9 02
1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9 0
2 2 2 2 2 2 2 2 2 31
2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6
40-541 Fully Populated 66x8 Matrix
40-541 Partially Populated 66x6 Matrix
40-541 Partially Populated 40x6 Matrix
12345 6 7 8 12345 6 7 8 12345 6 7 8
The 40-540, 40-541 and 40-542 may be ordered partially populated to a
specific matrix configuration (if volumes dictate), the diagrams show some
example configurations.
The illustrations right show:
• A 40-540 fully populated 132x4 matrix.
• A 40-540 partially populated 132x2 matrix.
• A 40-540 partially populated 100x4 matrix.
The illustrations below show:
• A 40-541 fully populated 66x8 matrix.
• A 40-541 partially populated 66x6 matrix.
• A 40-541 partially populated 40x6 matrix.
• A 40-542 fully populated 33x16 matrix.
• A 40-542 partially populated 25x16 matrix.
• A 40-542 partially populated 33x12 matrix.
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40-542 Fully Populated 33x16 Matrix
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40-542 Partially Populated 25x16 Matrix
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40-542 Partially Populated 33x12 Matrix
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Page 1.3
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering SECTION 1 - TECHNICAL SPECIFICATION
Ultra High Density Matrix, 40-540/541/542
pickeringtest.com
Overview
Advantages Over Competing PXI High Density Matrix Solutions
40-540/541/542 Matrix Competing PXI High
Density Matrix
World’s Highest Density 3U
1-Slot PXI Matrix Yes No
Reed relay type
Instrumentation Quality
Sputtered Ruthenium Reed
Relays.
Lower Cost Rhodium Reed Relays.
Simple relay replacement Easy to replace Pickering leaded
reed relays.
“Challenging” to replace surface
mount reed relays.
Matrix orderable in lower
capacity versions
Yes - Just specify X and Y limits.
You pay for just what you need.
No - You pay full price every time
whatever your needs.
Upgrade matrix at any time Yes - Fast turnaround factory
upgrade. No
Terminal block required No - Just use standard
commercial connectors.
Required to configure matrix and
offer strain relief.
Robust direct connection to PXI
matrix front panel Yes Terminal block usually required.
Maximum number of
simultaneously operated relays 100 40
Spare relays conveniently
located within PXI module Yes No
Relay count tracking
No - Because Pickering provide
a Full Matrix Diagnostic Tool -
eBIRST.
Yes - But this method is
unreliable†
Diagnostic Tool available Yes No
Switch 150 Volts DC Yes No
Predictable Bandwidth Yes
No - Significantly reduced where
an external terminal block is
required for configuration
Wide selection of screened
cable assemblies Yes No
Fully LXI Compliant Yes (using 60-102D/103D
Chassis) No
† Counting relay operations as a way of anticipating failure may prove very misleading, since it takes
no account of the relay load (over 95% of reed relay failures are due to excessive loads). Expected
life for a reed relay will vary by a factor of up to 1000, dependant upon load type (ranging from >109
operations for low power loads to >1x106 operations for high power loads).

Page 1.4 ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
SECTION 1 - TECHNICAL SPECIFICATION
Ultra High Density Matrix, 40-540/541/542
pickeringtest.com
Specifications
Switching Specification
Switch Type: Ruthenium Reed
Max Switch Voltage: 150 VDC/100 VAC*
Max Power:
Max Switch Current:
Max Carry Current:
10 W
0.5 A
0.5 A
Initial Path Resistance
On (Single Module):
Off (Single Module):
<1 Ω
>109 Ω
Operate Time:
Release Time:
<300 µs
<300 µs
Maximum number of
simultaneously operated relays: 135 (40-540)
100 (40-541/542)
Expected Life, low power load:
Expected Life, full power load:
>109 operations
>1x106 operations
* For full voltage rating, signal sources to be switched
must be fully isolated from mains supply and safety earth.
Power Requirements
+3.3 V +5 V +12 V -12 V
0 800 mA (typ 280 mA) 0 0
Mechanical Characteristics
Single slot 3U PXI (CompactPCI card).
Module weight: 400 g (40-542-021).
3D models for all versions in a variety of popular file
formats are available on request.
Connectors
PXI bus via 32-bit P1/J1 backplane connector.
Signals via front panel connectors:
• 132x4 Matrix (40-540-021): 200-pin female LFH*
• 66x8 Matrix (40-541-021): 96-pin male micro-D
• 33x16 Matrix (40-542-021): 68-pin male micro-D
For pin outs please refer to the operating manual.
* LFH relates to the obsolete Molex connector series and
is retained for continuity, products will be fitted with a
form, fit, function Pickering equivalent connector that is
intermateable with the original Molex parts.
Relay Type
The 40-540/541/542 modules are fitted with ruthenium
sputtered reed relays, these offer very long life with good
low level switching performance and excellent contact
resistance stability. Spare reed relays are built onto the
circuit board to allow easy maintenance with minimum
downtime.
All reed relays are manufactured by our Relay Division:
pickeringrelay.com
RF Specification - In a 50 Ω System
Bandwidth (-3 dB): 15 MHz
20 MHz
25 MHz
(40-540-021)
(40-541-021)
(40-542-021)
Crosstalk (typical): 10 kHz:
100 kHz:
1 MHz
10 MHz
-90 dB
-75 dB
-55 dB
-35 dB
Isolation (typical): 10 kHz:
100 kHz:
1 MHz
10 MHz
90 dB
85 dB
70 dB
60 dB
40-541-021 Insertion Loss Plot (typical worst case)
40-542-021 Insertion Loss Plot (typical worst case)
40-540-021 Insertion Loss Plot (typical worst case)

Page 1.5
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering SECTION 1 - TECHNICAL SPECIFICATION
Ultra High Density Matrix, 40-540/541/542
pickeringtest.com
Specifications
For applications that require a very large number of matrix crosspoints, Pickering’s range of versatile BRIC modules
should be considered.
The BRIC4 is a 4-slot PXI module available with over 2200 crosspoints, the BRIC8 is an 8-slot PXI module available with over
4400 crosspoints. Single pole, double pole or screened relay options are available and matrix Y dimensions of 4, 8, 16 or 32
can be specified. For more information, please refer to the 40-560A BRIC data sheet available for download from our web
site - pickeringtest.com
pickeringtest.com
PXI BRIC™ Multi-Slot Matrix 40-560A
ISSUE 5.0 MAY 2018
• Integrated PXI Matrix Module With Built In
High Performance Screened Analog Bus
• Available as 2, 4 and 8 Slot 3U PXI Modules
• 1 Pole Switching
• Switch up to 150Volts, 0.5A, 10W
• Automatic Isolation Relay Switches Maximizes
Bandwidth and Matrix Reliability
• Simplified Maintenance Through The Use of
Leaded Reed Relays
• Support in Any PXI Compliant Chassis or
Control Through Ethernet in Our LXI Modular
Chassis
• VISA, IVI & Kernel Drivers Supplied for
Windows
• Built-In Diagnostics -
BIRST
™
• Supported by
eBIRST
™
• 3 Year Warranty
BRIC
™
PXI Reed Relay Matrices
The 40-560A PXI BRIC is an ultra high density matrix module. It is
available in 2, 4 or 8-slot sizes to suit high performance PXI matrix
requirements and is constructed using instrumentation quality reed
relays.
With its high level of switching density, the 40-560A PXI matrix
allows a complete Functional ATE system to be housed in a single
3U PXI chassis, BRIC modules allow the use of much lower cost 8
or 14 slot PXI chassis.
• BRIC2 is a 2-slot PXI Module, this can hold up to 3 matrix
daughtercards, >1100 crosspoints.
• BRIC4 is a 4-slot PXI Module, this can hold up to 6 matrix
daughtercards, >2200 crosspoints.
• BRIC8 is an 8-slot PXI Module, which can hold up to 12 matrix
daughtercards, >4400 crosspoints.
High Reliability and Easy of Use
All models are constructed using the world’s smallest and highest
reliability ruthenium reed relays, offering >10
9
operations to give
maximum switching condence with long life and very stable
contact resistance.
Built-In Relay Self-Test -
BIRST
The BIRST facility provides a quick and simple way of nding relay
failures within the module. No test equipment is required, simply
disconnect the UUT from the BRIC’s connectors, launch the BIRST
application and the tool will run a diagnostic test that will nd all
relays with faulty contacts.
For more information go to: pickeringtest.com/birst
Supported by
eBIRST
In addition to BIRST, these modules are also supported by our
eBIRST test tools. These tools simplify switching system fault-
nding by quickly testing the system and graphically identifying the
faulty relay.
For more information go to: pickeringtest.com/ebirst
The 40-560A PXI BRICs are designed to minimize the cost and
complexity of cable assemblies to the device under test and
instrumentation. Analog busing is housed within the module using
a high performance screened analog backplane. Pickering can
construct custom cable assemblies for all of our PXI modules,
please contact sales ofce for further assistance.
PICKERING INTERFACES BRIC™ MATRIX MODULES
✓
Servicing the competitor's high density matrix requires
the use of expensive SMT rework equipment. Pickering's
Matrix requires simple hand tools.
✓
To upgrade the competitor's solution, extra PXI cards
are needed as well as terminal blocks and cables. With
Pickering's BRIC, extra daughter cards are simply added.
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 and 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.
Pickering Electronics State-Of-The-Art Reed Relays
PXI Matrix modules are constructed using very high
density reed relays manufactured by our Relay Division.
Sputtered Ruthenium
Reed Relays offer
maximum performance,
they are hermetically
sealed and offer a
very stable, long life
relay contact (typically
109 operations) with
very fast operate
time. Alternative
types such as electro-mechanical armature relays or non-
instrumentation grade reed relays are lower cost but do
not offer the consistent contact resistance, long life, fast
switching speed and low level switching capability of a reed
relay.
All of the reed relays used in our matrix switching modules
are manufactured by our Relay Division, these offer
maximum switching performance. Please visit the reed relay
web site at pickeringrelay.com for further information.

Page 1.6 ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
SECTION 1 - TECHNICAL SPECIFICATION
Ultra High Density Matrix, 40-540/541/542
pickeringtest.com
Ordering Information
Support Products
eBIRST Switching System Test Tool
This product is supported by the eBIRST test tools which
simplify the identification of failed relays, the required
eBIRST tools are below. For more information go to:
pickeringtest.com/ebirst
Product Test Tool Adaptor Termination
40-540
40-541
40-542
93-002-001
93-002-001
93-006-001
Not Reqd
93-002-226
93-006-222
Not Reqd
93-016-103
93-015-103
Spare Relay Kits
Kits of replacement relays are available for the majority of
Pickering’s PXI switching products, simplifying servicing
and reducing down-time.
Product Relay Kit
40-540/541/542 91-100-006 & 91-100-010
For further assistance, please contact your local Pickering
sales office.
Mating Connectors & Cabling
For connection accessories for the 40-540/541/542
modules please refer to the 90-002D 200-pin LFH, 90-016D
96-pin micro-D and 90-015D 68-pin micro-D Connector
Accessories data sheets where a complete list and
documentation can be found for accessories, or refer to
the Connection Solutions catalog.
Product Order Codes
Ultra High Density PXI Matrix Modules:
Single 132x4 Matrix, 1 Pole
Single 66x8 Matrix, 1 Pole
Single 33x16 Matrix, 1 Pole
40-540-021
40-541-021
40-542-021
Partially Populated Versions:
These are available by specifying the X and Y size in the
product code, for example:
40-540-021-100x4 (100x4 1-pole matrix).
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 reed relay types
• Mixture of reed 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.
Pickering can supply mating 200-pin connectors and
cable assemblies to enable easy integration of the
40-540/541/542 series of matrix modules

Page 1.7
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering SECTION 1 - TECHNICAL SPECIFICATION
Ultra High Density Matrix, 40-540/541/542
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 1.8 ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
SECTION 1 - TECHNICAL SPECIFICATION
Ultra High Density Matrix, 40-540/541/542
pickeringtest.com
Supporting Products & Software
© Copyright (2023) 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 support is provided for LabVIEW Real Time Operating Systems (Pharlap and Linux-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++)
• Programming Languages C, C++, C#, Python
• 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 also have 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

Page 2.1
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering SECTION 2 - TECHNICAL DESCRIPTION
SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
MODULE
CONFIGURATION
U3
PCI
BRIDGE
U1
PCI BRIDGE
CONFIGURATION
U2
TERMINATING
RESISTORS
R1 TO R12
COMPACT PCI
BUS
CONNECTOR
J1
+5V
0V
200-PIN
LFH
CONNECTOR
RELAY
DRIVERS
U50 to U62
RELAY
COILS
RL1 to RL208
RELAY
CONTACTS
RL1 to RL208
RELAY
DRIVERS
U63 to U82
DAUGHTERBOARD
RELAY
COILS
RL209 to RL528
RELAY
CONTACTS
RL209 to RL528
X2 X4 X8 X1 X3 X5 X6 X7
X12 X9 X10 X11
X14 X13 X15
X132 X130 X131
Y2
Y4
Y1
Y3
MATRIX
CROSSPOINT
X16
A functional block diagram is provided in Figure 2.1. The Module is powered by the +5V supply from the PXI
backplane via Compact PCI connector J1. The interface to the user’s equipment is via the front panel mounted 200-
pin LFH, 96-pin micro-D or 68-pin micro-D connector, J2.
The module comprises a mother board and a daughter board populated with single pole ruthenium reed relays
congured as a 132x4 (40-540), a 66x8 (40-541) or a 33x16 (40-542) matrix. The relays are energised via control
signals from relay drivers U50 to U82. Each relay driver is loaded with serial data from PCI bridge U1 to operate the
required matrix crosspoint.The main PCI interface circuitry and the drivers and relays that make up one half of the
matrix are built onto the mother board. The daughter board is tted on top of the mother board and is populated with
the drivers and relays that make up the other half of the matrix. Signals are sent between the two halves of the matrix
via an inter-PCB connector. Module conguration is determined by data stored in Serial EPROM U3. PCI Bridge U1
is congured by Flash EPROM U2.
Figure 2.1 - 132x4 Ultra High Density Matrix Module 40-540: Functional Block Diagram
(the 40-541 and 40-542 are functionally the same but are congured
as 66x8 and 33x16 matrices respectively)

Page 2.2 ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
SECTION 2 - TECHNICAL DESCRIPTION
THIS PAGE INTENTIONALLY BLANK

Page 3.1
ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering SECTION 3 - INSTALLATION
Page 3.1
REED RELAY MODULE 40-110/115/120/125
pickering SECTION 3 - INSTALLATION
kg
PREOPERATION CHECKS (UNPACKING)
1. Check the module for transport damage and report any damage immediately to Pickering Interfaces.
Do not attempt to install the product if any damage is evident.
2. Position the chassis relative to any other equipment the module(s) will connect with. Ensure the chassis is not
connected to the electrical supply.
3. Ensure that the designated area for the chassis containing the module is of at and solid construction to
withstand and support the combined weight of the module(s) and chassis.
SECTION 3 - INSTALLATION
!
Refer to the Warnings and Cautions at the front of this manual
Modular products require installation in a suitable PXI/LXI chassis. The module is designed for indoor use only.
Figure 3.1 - Installing the Module into a PXI/cPCI/LXI Chassis
PXI / LXI Chassis

Page 3.2 ULTRA HIGH DENSITY MATRIX MODULES 40-540/541/542
pickering
SECTION 3 - INSTALLATION
Page 3.2 REED RELAY MODULE 40-110/115/120/125
pickering
SECTION 3 - INSTALLATION
SOFTWARE INSTALLATION
First install the appropriate Pickering PXI switch card drivers by running the installer program Setup.exe (provided
in a compressed zip le), either from the CD-ROM supplied, or by downloading the latest version from our website
pickeringtest.com - the recommended method. Setup is accompanied by a ReadMe le containing
additional installation information. A single installation covers all cards in the System 40, System 45 and System
50 ranges.
When installation completes, the installed drivers’ ReadMe le is offered for display. It can also be displayed
later using a shortcut on the Programs>>Pickering menu.
If you are not a LabVIEW user you should choose the “full” version, and once that has been installed run
the LabVIEW Runtime Engine installer via the shortcut on the Programs>>Pickering menu. In the absence of
LabVIEW the Runtime Engine is required to support the Pickering Test Panels application.
!
HARDWARE INSTALLATION
ELECTRICAL CONNECTION (CHASSIS)
1. The chassis must be electrically installed in accordance with local regional electrical codes by a qualied
engineer.
2. The chassis must be grounded.
Electrostatic discharge can damage the components on the module. To avoid such damage in handling the
board refer to page VII.
Ensure that there is adequate ventilation.
The module should be installed in accordance with the following procedure:
1. Ensure that the system is turned OFF but still connected to mains so that it remains grounded.
2. Choose an appropriate slot in the rack.
3. Remove the blanking plate for the chosen slot.
4. Ensure that the injector/ejector handle is in its downward position. Align the module with the card guides on
the top and bottom of the slot.
Do not raise the injector/ejector handle whilst inserting the module as the module will not insert properly.
5. Hold the handle whilst slowly sliding the module into the card guides until the handle catches on the injector/
ejector rail (refer to Figure 3.1).
6. Raise the injector/ejector handle until the module rmly seats into the backplane. The front panel of the
module should be ush with the front panel of the chassis.
7. Secure the front panel of the module using both screws to the chassis front panel mounting rails.
8. In a system employing a remote control interface to connect an external controller to a PXI chassis or to link
multiple chassis, power-up the system as follows:
a. For a system comprising an external controller and one chassis, power up the chassis before powering up
the external controller.
b. For a system comprising more than one chassis, turn ON the last chassis in the system followed by the
penultimate, etc, and nally turn ON the external controller or chassis containing the system controller.
9. For Pickering Interfaces modular LXI installation there is no requirement to use any particular power up
sequence.