Pickering 40/42-139A User manual

pickeringtest.com
Issue 1.1 March 2023
40/42-139A User Manual
PXI/PXIe High Density 2 A Relay Module

Page (II) PXI/PXIe High Density 2 A Relay Module 40/42-139A
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)
PXI/PXIe High Density 2 A Relay Module 40/42-139A
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) PXI/PXIe High Density 2 A Relay Module 40/42-139A
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)
PXI/PXIe High Density 2 A Relay Module 40/42-139A
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
Guidance on Power Handling...............................................1.4
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/PXIe Modules ...4.1
Module Architecture - SPST Version ...................................4.2
Module Architecture - DPST Version ...................................4.3
Module Architecture - SPDT Version ...................................4.4
Module Architecture - DPDT Version...................................4.5
Programming The Module ....................................................4.6
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.............................................................7.1
CONTENTS

Page (VI) PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
THIS PAGE INTENTIONALLY BLANK

Page (VII)
PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
Page (VII)
2 AMP 1-POLE UHD MATRIX MODULES 40-575 / 576 / 577 / 578 / 579
pickering
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) PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
Page (VIII) 2 AMP 1-POLE UHD MATRIX MODULES 40-575 / 576 / 577 / 578 / 579
pickering
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
PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
PXI/PXIe High Density 2 A Relay Module 40/42-139A
ISSUE 1.0 JUN 2022
Supported by eBIRST
eBIRST test tools simplify fault-finding by quickly testing the
system and graphically identifying the faulty relay.
For more information go to: pickeringtest.com/ebirst
yAvailable as a PXI or PXIe Module
yHigh Density Electro-mechanical Relay Module
y80 x SPST, 40 x DPST, 52 x SPDT
or 26 x DPDT Configurations
yMaximum Current 2 A Hot or Cold Switching
ySwitch up to 300 VDC/250 VAC and up to 60 W
Max Power
yVISA, IVI & Kernel Drivers Supplied for Windows
yPXI Version Supported by PXI or LXI Chassis
ySupported by
eBIRST ™
y3 Year Warranty
The 40-139A (PXI) and 42-139A (PXIe) 2 A modules are suitable
for high density switching applications with medium power.
Featuring 2A current capacity and voltage rating to
300VDC/250VAC, available configurations are:
• 80 x SPST (Single Pole Single Throw)
• 40 x DPST (Double Pole Single Throw)
• 52 x SPDT (Single Pole Double Throw)
• 26 x DPDT (Double Pole Double Throw)
Connections are made via a front panel mounted 160 pin DIN
41612 high density connector. Pickering provide a wide range of
connector and cabling solutions to support this module, refer to
Pickering’s “Interconnection Catalog” or visit our web site.
Typical applications will be found in Automotive, Aerospace,
Military and Power Cell Testing applications
80 x SPST 40 x DPST 52 x SPDT 26 x DPDT
40/42-139A High Density Relay Module Configurations
B52
A52
C52
A80
C80
A40.2
C40.2
A40.1
C40.1 B26.2
A26.2
C26.2
B26.1
A26.1
C26.1
B1.2
A1.2
C1.2
B1.1
A1.1
C1.1
B1
A1
C1
B2
A2
C2
B3
A3
C3
A1.2
C1.2
A1.1
C1.1
A2.2
C2.2
A2.1
C2.1
A1
C1
A2
C2
A3
C3
A4
C4
Alternative Slot-Saving High Density Mixed
Configuration Relay Module:
40-138 Custom Solutions from a mix of
SPST, DPST, SPDT & DPDT Relays
Alternative High Density 2 A Relay Module:
40-100 83 x SPDT Relays
Alternative Lower Density 2 A Relay Modules:
40-132 16 or 32 x SPST Relays
40-137 39 x SPST Relays
40-132 16 or 19 x DPST Relays
40-131 16 or 26 x SPDT Relays
40-130 8 or 13 x DPDT Relays
Updated Product Information
This product has been introduced as an update to the
40-139, the change is to provide PXIe options.

Page 1.2 PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
SECTION 1 - TECHNICAL SPECIFICATION
High Density 2 A Relay Module, 40/42-139A
pickeringtest.com
Specifications
Relay Type
40-139 series modules are fitted with electro-mechanical
signal relays with palladium-ruthenium, gold covered
contacts.
The module is of a single circuit board construction
and uses through hole relays (not SMT relays) so field
maintenance is greatly simplified. In addition a spare relay
is built onto the circuit board to allow easy maintenance
with minimum downtime.
Switching Specification
Switch Type: Electro-mechanical
Contact Type: Palladium-Ruthenium,
Gold Covered Bifurcated
Max Switch Voltage: 300 VDC/250 VAC *
Max Power:
Max Switch Current:
Max Continuous Carry Current:
Max Pulsed Carry Current
Example (for single switch path):
62.5 VA, 60 W from 30 V
to 220 VDC, 30 W to
300 VDC (resistive load)
2 A **
2 A **
6 A for 100 ms
(up to 10 % duty cycle)
Initial On Path Resistance:
Off Path Resistance:
Minimum Voltage:
Thermal Offset:
<350 mΩ, 150 mΩ typical
(1 A measurement
condition)
>109 Ω
100 µV
<10 µV
Operate Time: < 3 ms
Expected Life (operations)
Very low power signal load:
Low power load (2W):
Medium power load (30W):
Full power load (60W):
>108
>1.5x107 (0.1 A, 20 VDC)
>5x106 (1A, 30 VDC)
>1x105 (2A, 30 VDC)
>1x105 (0.1A, 300 VDC)
* For full voltage rating, signal sources to be switched
must be fully isolated from mains supply and safety earth.
** Limited to 1.5 A when all channels are used. No
limitations when up to 50 % of channels are used. See
Guidance On Power Handling section in the user manual
for further details.
RF Specification
Bandwidth (-3 dB): 65 MHz (40/42-139A-101)
70 MHz (40/42-139A-102)
60 MHz (40/42-139A-201)
50 MHz (40/42-139A-202)
Crosstalk (typical): -60 dB at 10 kHz
-60 dB at 100 kHz
-40 dB at 1 MHz
-20 dB at 10 MHz
Isolation (typical): 55 dB at 10 kHz
55 dB at 100 kHz
40 dB at 1 MHz
20 dB at 10 MHz
Power Requirements - 40-139A
+3.3 V +5 V +12 V -12 V
0.14 A (typical) 0.26 A (40-139A-202)
0.40 A (40-139A-102)
0.52 A (40-139A-201)
0.78 A (40-139A-101)
0 0
Power Requirements - 42-139A
+3.3 V +12 V
0.37 A (typical) 0.13 A (42-139A-202)
0.19 A (42-139A-102)
0.24 A (42-139A-201)
0.39 A (42-139A-101)
Mechanical Characteristics
40-139A - Single slot 3U PXI (CompactPCI card).
42-139A - Single slot 3U PXIe, compatible with PXIe hybrid
slot.
Module weight: 200 g (40/42-139-101).
180 g (40/42-139-201).
3D models for all versions in a variety of popular file
formats are available on request.
Connectors
40-139A - PXI bus via 32-bit P1/J1 backplane connector.
42-139A - PXIe bus via XJ3 and XJ4 backplane connectors.
Signals via front panel 160-pin male DIN 41612 connector,
for pin outs please refer to the operating manual.
We recommend that Pickering mating connectors are used
with this module which are designed to ensure there are
no mechanical interference problems when used in a PXI
chassis.

Page 1.3
PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering SECTION 1 - TECHNICAL SPECIFICATION
High Density 2 A Relay Module, 40/42-139A
pickeringtest.com
Specifications & 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
40/42-139A 93-002-001 93-002-410
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
40/42-139A-xxx 91-100-001
For further assistance, please contact your local Pickering
sales office.
Mating Connectors & Cabling
For connection accessories for the 40/42-139A series
please refer to the 90-001D 160-pin DIN 41612 Connector
Accessories data sheet where a complete list and
documentation can be found for accessories, or refer to
the Connection Solutions catalog.
Product Order Codes
PXI 80xSPST, 2 A Relay Module
PXI 40xDPST, 2 A Relay Module
PXI 52xSPDT, 2 A Relay Module
PXI 26xDPDT, 2 A Relay Module
40-139A-101
40-139A-102
40-139A-201
40-139A-202
PXIe 80xSPST, 2 A Relay Module
PXIe 40xDPST, 2 A Relay Module
PXIe 52xSPDT, 2 A Relay Module
PXIe 26xDPDT, 2 A Relay Module
42-139A-101
42-139A-102
42-139A-201
42-139A-202
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.
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 - 40-139A
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.
PXIe Compliance - 42-139A
The module is compliant with the PXIe Specification 1.0.
Local Bus, Trigger Bus & Star Trigger are not implemented.
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.
42-139A PXIe High Density Relay Module

Page 1.4 PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
SECTION 1 - TECHNICAL SPECIFICATION
High Density 2 A Relay Module, 40/42-139A
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
The PXI versions of this module must be used in a suitable chassis. They are 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
The PXIe versions of this module are compatible with the following chassis types:
• All chassis conforming to the 3U PXIe specification
• PXIe and Hybrid Peripheral slots in a 3U PXI Express (PXIe) 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 1.5
PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering SECTION 1 - TECHNICAL SPECIFICATION
High Density 2 A Relay Module, 40/42-139A
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

Page 1.6 PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
SECTION 1 - TECHNICAL SPECIFICATION
The limitations described are thermal characteristics, and short term closure counts or current increases in excess
of these numbers will not cause problems.
The closures noted refer to any setting which requires the relay state to be changed from it’s default (unpowered)
condition.
●For SPST switching, this refers to the number of relays energised with the stated current owing in the
contact.
●For SPDT and DPDT switching, it refers to the relay being in the energised state and the stated current
owing in the closed contact, In the un-energised state the thermal load will be lower.
●For DPST and DPDT switching where current is owing in both closed contacts, the recommendations
count each switch as two closures.
It should be noted that users with a Pickering Interfaces 40-908, 40-914 or 40-918 PXI chassis mounted in
accordance with the user instructions ensuring free air ow, can expect a capacity of 40W per slot.
GUIDANCE ON POWER HANDLING
The PXI standard recommends that each slot consumes less than 25 Watts to ensure that the chassis does not
overheat. Some chassis may be capable of handling more than 25W per slot.
For the 40-139A there are three main contributing factors to the power consumption of the module:
●Fixed power from the PXI interface and relay controllers
●Relay coil power
●Power loss from the signal being switched due to path resistance.
Applications vary considerably as to how many relays may be closed and what current each contact carries. Users
should consider how much power the module is likely to dissipate from all sources.
For the 40-139A the Figure 2.1 below provides guidance. It assumes that all contacts carry the same current and
that every path has the maximum resistance value shown on the data sheet. It is therefore a worst case scenario. If
your application is likely to load large numbers of contacts with currents over 1.5 Amps you should consult the graph
to nd the number of closures we recommend. In most applications this is of no concern since many contacts may
be unused or are relatively lightly loaded.
Figure 2.1 Plot of recommended number of closures of relays (vertical) versus carry current
(horizontal, Amps). This assumes a maximum contact resistance of 350mΩ and a chassis
capable of supporting the minimum 25W per slot recommended in the PXI standard.

Page 2.1
PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering SECTION 2 - TECHNICAL DESCRIPTION
SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
Figure 2.1 - High Density 2A Relay Module 40/42-139A: Functional Block Diagram
A functional block diagram is provided in Figure 2.1. The module is powered by +5V and +3.3V (PXI) or +3.3V
and +12V (PXIe) supplies via the backplane connectors. The interface to the user test equipment is via the front
panel mounted 160-pin DIN 41612 connector, J1. Depending upon the model number, the module comprises a
PCB populated with SPST, DPST, SPDT or DPDT electro-mechanical relays. The relays are energised via control
signals from relay drivers. The relay drivers are addressed by PCI bridge U1 to output the required signal. Module
conguration and PCI Bridge conguration is stored in memory devices.
Relay
Drivers
PXI/PXIe High Density Relay Module - 40/42-139A
Relays RL1-26, RL1-52,
RL1-40 or RL1-80
One of Four Different
SPST, DPST, SPDT or DPDT
Relay Configurations
Front Panel Male Connector J1
160-pin Male DIN 41612
PCI Bridge
Configuration
Memory
Level
Translators
U2-3
(40-139A)
PCI Bridge U1
GND
Module
Configuration
Memory
Compact PCI Bus
Connector J1 (40-139A)
+5V
+3.3V
GND
PXIe Connectors
XJ3 & XJ4 (42-139A)
+12V
+3.3V

Page 2.2 PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
SECTION 2 - TECHNICAL DESCRIPTION
THIS PAGE INTENTIONALLY BLANK

Page 3.1
PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering SECTION 3 - INSTALLATION
Page 3.1
REED RELAY MODULE 40-110/115/120/125
pickeringSECTION 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.
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/PXIe/LXI chassis. The module is for indoor use only.
Figure 3.1 - Installing the Module into a PXI/PXIe/cPCI/LXI Chassis
PXI / PXIe / LXI Chassis
Ensure that the designated area for the chassis containing the module is of flat and solid construction to
PXI / PXIe Module

Page 3.2 PXI/PXIe High Density 2 A Relay Module 40/42-139A
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.

Page 3.3
PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering SECTION 3 - INSTALLATION
Page 3.3
REED RELAY MODULE 40-110/115/120/125
pickering SECTION 3 - INSTALLATION
Figure 3.3 - General Soft Front Panel Selector
TESTING OPERATION
After installation of the hardware and Pickering PXI Driver software package start the General Soft Front
Panel (GSFP) using the desktop icon or via the Start menu (Start Menu-> Pickering Interfaces Ltd ->
General Soft Front Panel).
A selector panel will appear, listing all installed Pickering PCI, PXI or LXI switch cards and resistor cards. Click
on the card you wish to control, and a graphical control panel is presented allowing operation of the card.
Panels can be opened simultaneously for all the installed cards.
More details how to use the GSFP can be found in the manual, via menu Help\Manual
Figure 3.2 - General Soft Front Panel Icon

Page 3.4 PXI/PXIe High Density 2 A Relay Module 40/42-139A
pickering
SECTION 3 - INSTALLATION
THIS PAGE INTENTIONALLY BLANK