Pickering 40-297A User manual

pickeringtest.com
Issue 1.0 October 2022
40/42-297A User Manual
PXI/PXIe High Density Precision Resistor Module

Page (II) PXI/PXIe High Density Precision Resistor Module 40/42-297A
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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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PXI/PXIe High Density Precision Resistor Module 40/42-297A
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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) PXI/PXIe High Density Precision Resistor Module 40/42-297A
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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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PXI/PXIe High Density Precision Resistor Module 40/42-297A
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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
Guidance on Using the Module............................................2.2
Section 3
Installation....................................................................................3.1
Pre Operation Checks...........................................................3.1
Hardware Installation ............................................................3.2
Software Installation .............................................................3.2
Testing Operation ..................................................................3.3
Section 4
Programming Guide....................................................................4.1
Programming Options For Pickering PXI/PXIe Modules ...4.1
Module Architecture..............................................................4.2
Programming Module............................................................4.2
Using The Soft Front Panel ..................................................4.4
Section 5
Connector Information................................................................5.1
Section 6
Trouble Shooting .........................................................................6.1
Section 7
Maintenance Information............................................................7.1
Verication & Adjustment Procedure ..................................7.2
Verication Test Results .......................................................7.9
CONTENTS

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THIS PAGE INTENTIONALLY BLANK

Page (VII)
PXI/PXIe High Density Precision Resistor Module 40/42-297A
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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

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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
PXI/PXIe High Density Precision Resistor Module 40/42-297A
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
Precision Resistor Module (Part No. 4x-297A) Available with
Between 3 & 18 Channels
The 40-297A (PXI) and the 42-297A (PXIe) provide a
simple solution for applications requiring accurate
simulation of resistive sensors. They are available
in a variety of resistance ranges and resolutions to
meet the needs of functional test systems and are
suitable for engine controller testing where resistive
sensors provide information such as temperature.
Additionally, resistor channels can be set as short or
open circuit to simulate a wiring or sensor fault.
Software control is simplified by the use of resistor value calls. The module uses the setting closest to the requested value, and
the user can interrogate the module to find the actual resistance setting used.
A calibration cable can be attached to the module allowing a DMM to verify each channel. This considerably simplifies the
checking of the module’s calibration. Verification is performed with the UUT disconnected from the module.
The 4x-297A is available in 70 standard builds in each platform that suit the most
common applications:
• A narrow resistance range version with 9 or 18 channels.
• A medium resistance range version with 4 or 9 channels.
• A wide resistance range version with 3 or 6 channels.
For applications requiring greater resolution and accuracy, or to support verification
with the UUT connected, consider the 40-260 series Precision Resistor Modules.
Updated Product Information
This product has been introduced as a “form & fit” update to the 40-297, the
changes are to provide PXIe options, higher maximum voltage plus higher
resolution range expansion. Otherwise, the electrical performance of the 40-297 and
4x-297A families are very similar, the pinout and software are identical.
yAvailable as a PXI or PXIe Module
yHigh Density Resistor Simulation
yUp To 18 Channels in a One Slot Module
yResistance Resolution to 0.125 Ω
yValues From 1 Ω to 85.3 MΩ
yAccuracy of up to ±0.1 % ± Resolution
yShort and Open Simulation
ySimple Software Control Through Resistance Calls
yVISA & Kernel Drivers Supplied for Windows
yPXI Versions Supported by PXI or LXI Chassis
y3 Year Warranty
42-297A-150
PXIe Version
Channel 1
Switched Resistor
Open
Short
Channel 2
Switched Resistor
Open
Short
Channel 18
Switched Resistor
Open
Short
Channel 2
Switched Resistor
Open
Short
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4x-297A
PXI/PXIe High Density Precision Resistor
Issue 1.0 Oct 2022

Page 1.2 PXI/PXIe High Density Precision Resistor Module 40/42-297A
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SECTION 1 - TECHNICAL SPECIFICATION
Soft Front Panel for Precision Resistor Modules
PXI/PXIe Part Number
(Number of Channels)
Resistance Range
Resolution
1Ω 10Ω 100Ω 1kΩ 10kΩ 100kΩ 1MΩ 10MΩ 100MΩ
40/42-297A-010 (18) 40/42-297A-110 (9) 0.125 Ω
40/42-297A-011 (18) 40/42-297A-111 (9) 0.25 Ω
40/42-297A-012 (18) 40/42-297A-112 (9) 0.5 Ω
40/42-297A-013 (18) 40/42-297A-113 (9) 1 Ω
40/42-297A-014 (18) 40/42-297A-114 (9) 2 Ω
40/42-297A-015 (18) 40/42-297A-115 (9) 4 Ω
40/42-297A-016 (18) 40/42-297A-116 (9) 8 Ω
40/42-297A-020 (9) 40/42-297A-120 (4) 0.125 Ω
40/42-297A-021 (9) 40/42-297A-121 (4) 0.25 Ω
40/42-297A-022 (9) 40/42-297A-122 (4) 0.5 Ω
40/42-297A-023 (9) 40/42-297A-123 (4) 1 Ω
40/42-297A-024 (9) 40/42-297A-124 (4) 2 Ω
40/42-297A-025 (9) 40/42-297A-125 (4) 4 Ω
40/42-297A-026 (9) 40/42-297A-126 (4) 8 Ω
40/42-297A-030 (9) 40/42-297A-130 (4) 0.125 Ω
40/42-297A-031 (9) 40/42-297A-131 (4) 0.25 Ω
40/42-297A-032 (9) 40/42-297A-132 (4) 0.5 Ω
40/42-297A-033 (9) 40/42-297A-133 (4) 1 Ω
40/42-297A-034 (9) 40/42-297A-134 (4) 2 Ω
40/42-297A-035 (9) 40/42-297A-135 (4) 4 Ω
40/42-297A-036 (9) 40/42-297A-136 (4) 8 Ω
40/42-297A-040 (6) 40/42-297A-140 (3) 0.125 Ω
40/42-297A-041 (6) 40/42-297A-141 (3) 0.25 Ω
40/42-297A-042 (6) 40/42-297A-142 (3) 0.5 Ω
40/42-297A-043 (6) 40/42-297A-143 (3) 1 Ω
40/42-297A-044 (6) 40/42-297A-144 (3) 2 Ω
40/42-297A-045 (6) 40/42-297A-145 (3) 4 Ω
40/42-297A-046 (6) 40/42-297A-146 (3) 8 Ω
40/42-297A-050 (6) 40/42-297A-150 (3) 0.125 Ω
40/42-297A-051 (6) 40/42-297A-151 (3) 0.25 Ω
40/42-297A-052 (6) 40/42-297A-152 (3) 0.5 Ω
40/42-297A-053 (6) 40/42-297A-153 (3) 1 Ω
40/42-297A-054 (6) 40/42-297A-154 (3) 2 Ω
40/42-297A-055 (6) 40/42-297A-155 (3) 4 Ω
40/42-297A-056 (6) 40/42-297A-156 (3) 8 Ω
4x-297A Precision Resistor Module Range
4x-297A
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PXI/PXIe High Density Precision Resistor

Page 1.3
PXI/PXIe High Density Precision Resistor Module 40/42-297A
pickering SECTION 1 - TECHNICAL SPECIFICATION
Operating/Storage Conditions
Operating Temperature:
Humidity:
Altitude:
0 °C to +55 °C
Up to 90 % non-condensing
5000 m
Storage Temperature:
Humidity:
Altitude:
-20 °C to +75 °C
Up to 90 % non-condensing
15000 m
Power Requirements - 40-297A
+3.3 V +5 V +12 V -12 V
0.24 A 1.6 A max 0 0
Power Requirements - 42-297A
+3.3 V +12 V
0.46 A 0.75 A max
Mechanical Characteristics
40-297A - Single slot 3U PXI (CompactPCI card).
42-297A - Single slot 3U PXIe, compatible with PXIe hybrid
slot.
3D models for all versions in a variety of popular file
formats are available on request.
Connectors
40-297A - PXI bus via 32-bit P1/J1 backplane connector.
42-297A - PXIe bus via XJ3 and XJ4 backplane connectors.
Resistor channel signals via front panel 37-pin male
D-Type connector.
Specification
Accuracy: ±0.2 % ±Resolution @ <300 Ω,
±0.1 % ±Resolution @ ≥300 Ω
@ ±10 °C from calibration temperature
and up to 50 % humidity. *
(factory calibration @ 21 °C)
Fault Simulation: Open and short circuit
(typically <0.3 Ω)
Max Power: 0.5 W **
Max Voltage: 200 V† or as limited by power
Thermal Offset: 6 µV max
Settling Time: <3 ms ‡
Software
Control:
By resistance calls to module for
selected channel.
Calibration: 4-wire resistance measurement of
selected channel for verification
purposes with UUT removed and a
special cable assembly attached. Factory
calibration data is stored in the module.
Expected Life
(operations): 100 million (10 mA)
* If working at temperatures or humidity outside this range,
please contact your local sales office to discuss.
** Or as limited by voltage/current.
† For full voltage rating, signal sources must be fully isolated
from mains supply and safety earth.
‡ The total operate time when setting a resistance may be
longer depending upon the change requested due to relay
sequencing.
4x-297A
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Specifications

Page 1.4 PXI/PXIe High Density Precision Resistor Module 40/42-297A
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SECTION 1 - TECHNICAL SPECIFICATION
PXI Product Order Codes
0.125 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 31 Ω 9 40-297A-110 18 40-297A-010
1.5 Ω to 472 Ω 4 40-297A-120 9 40-297A-020
2 Ω to 6.97 kΩ 4 40-297A-130 9 40-297A-030
2.5 Ω to 102 kΩ 3 40-297A-140 6 40-297A-040
3 Ω to 1.51 MΩ 3 40-297A-150 6 40-297A-050
0.25 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 61 Ω 9 40-297A-111 18 40-297A-011
1.5 Ω to 925 Ω 4 40-297A-121 9 40-297A-021
2 Ω to 13.6 kΩ 4 40-297A-131 9 40-297A-031
2.5 Ω to 201 kΩ 3 40-297A-141 6 40-297A-041
3 Ω to 2.97 MΩ 3 40-297A-151 6 40-297A-051
0.5 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 120 Ω 9 40-297A-112 18 40-297A-012
1.5 Ω to 1.81 kΩ 4 40-297A-122 9 40-297A-022
2 Ω to 26.7 kΩ 4 40-297A-132 9 40-297A-032
2.5 Ω to 395 kΩ 3 40-297A-142 6 40-297A-042
3 Ω to 5.82 MΩ 3 40-297A-152 6 40-297A-052
1 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 238 Ω 9 40-297A-113 18 40-297A-013
1.5 Ω to 3.55 kΩ 4 40-297A-123 9 40-297A-023
2 Ω to 52.4 kΩ 4 40-297A-133 9 40-297A-033
2.5 Ω to 773 kΩ 3 40-297A-143 6 40-297A-043
3 Ω to 11.4 MΩ 3 40-297A-153 6 40-297A-053
*Due to the large resolution of the card, actual result on lower
resistance will have a larger effect by the ±resolution than the
% accuracy.
2 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 470 Ω 9 40-297A-114 18 40-297A-014
1.5 Ω to 6.97 kΩ 4 40-297A-124 9 40-297A-024
2 Ω to 102 kΩ 4 40-297A-134 9 40-297A-034
2.5 Ω to 1.51 MΩ 3 40-297A-144 6 40-297A-044
3 Ω to 22.3 MΩ 3 40-297A-154 6 40-297A-054
4 Ω Resolution*
Range Chan. Order Code Chan. Order Code
1 Ω to 920 Ω 9 40-297A-115 18 40-297A-015
1.5 Ω to 13.6 kΩ 4 40-297A-125 9 40-297A-025
2 Ω to 201 kΩ 4 40-297A-135 9 40-297A-035
2.5 Ω to 2.97 MΩ 3 40-297A-145 6 40-297A-045
3 Ω to 43.8 MΩ 3 40-297A-155 6 40-297A-055
8 Ω Resolution*
Range Chan. Order Code Chan. Order Code
1 Ω to 1.8 kΩ 9 40-297A-116 18 40-297A-016
1.5 Ω to 26.7 kΩ 4 40-297A-126 9 40-297A-026
2 Ω to 395 kΩ 4 40-297A-136 9 40-297A-036
2.5 Ω to 5.82 MΩ 3 40-297A-146 6 40-297A-046
3 Ω to 85.3 MΩ 3 40-297A-156 6 40-297A-056
4x-297A
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Ordering Information

Page 1.5
PXI/PXIe High Density Precision Resistor Module 40/42-297A
pickering SECTION 1 - TECHNICAL SPECIFICATION
PXIe Product Order Codes
0.125 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 31 Ω 9 42-297A-110 18 42-297A-010
1.5 Ω to 472 Ω 4 42-297A-120 9 42-297A-020
2 Ω to 6.97 kΩ 4 42-297A-130 9 42-297A-030
2.5 Ω to 102 kΩ 3 42-297A-140 6 42-297A-040
3 Ω to 1.51 MΩ 3 42-297A-150 6 42-297A-050
0.25 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 61 Ω 9 42-297A-111 18 42-297A-011
1.5 Ω to 925 Ω 4 42-297A-121 9 42-297A-021
2 Ω to 13.6 kΩ 4 42-297A-131 9 42-297A-031
2.5 Ω to 201 kΩ 3 42-297A-141 6 42-297A-041
3 Ω to 2.97 MΩ 3 42-297A-151 6 42-297A-051
0.5 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 120 Ω 9 42-297A-112 18 42-297A-012
1.5 Ω to 1.81 kΩ 4 42-297A-122 9 42-297A-022
2 Ω to 26.7 kΩ 4 42-297A-132 9 42-297A-032
2.5 Ω to 395 kΩ 3 42-297A-142 6 42-297A-042
3 Ω to 5.82 MΩ 3 42-297A-152 6 42-297A-052
1 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 238 Ω 9 42-297A-113 18 42-297A-013
1.5 Ω to 3.55 kΩ 4 42-297A-123 9 42-297A-023
2 Ω to 52.4 kΩ 4 42-297A-133 9 42-297A-033
2.5 Ω to 773 kΩ 3 42-297A-143 6 42-297A-043
3 Ω to 11.4 MΩ 3 42-297A-153 6 42-297A-053
*Due to the large resolution of the card, actual result on lower
resistance will have a larger effect by the ±resolution than the
% accuracy.
2 Ω Resolution
Range Chan. Order Code Chan. Order Code
1 Ω to 470 Ω 9 42-297A-114 18 42-297A-014
1.5 Ω to 6.97 kΩ 4 42-297A-124 9 42-297A-024
2 Ω to 102 kΩ 4 42-297A-134 9 42-297A-034
2.5 Ω to 1.51 MΩ 3 42-297A-144 6 42-297A-044
3 Ω to 22.3 MΩ 3 42-297A-154 6 42-297A-054
4 Ω Resolution*
Range Chan. Order Code Chan. Order Code
1 Ω to 920 Ω 9 42-297A-115 18 42-297A-015
1.5 Ω to 13.6 kΩ 4 42-297A-125 9 42-297A-025
2 Ω to 201 kΩ 4 42-297A-135 9 42-297A-035
2.5 Ω to 2.97 MΩ 3 42-297A-145 6 42-297A-045
3 Ω to 43.8 MΩ 3 42-297A-155 6 42-297A-055
8 Ω Resolution*
Range Chan. Order Code Chan. Order Code
1 Ω to 1.8 kΩ 9 42-297A-116 18 42-297A-016
1.5 Ω to 26.7 kΩ 4 42-297A-126 9 42-297A-026
2 Ω to 395 kΩ 4 42-297A-136 9 42-297A-036
2.5 Ω to 5.82 MΩ 3 42-297A-146 6 42-297A-046
3 Ω to 85.3 MΩ 3 42-297A-156 6 42-297A-056
Connection Accessories
For a complete list of connection accessories and
documentation for the 40/42-297A module please refer to our
37-pin D-type datasheet (90-007D).
Support Products
Accessories
Calibration lead for 4-wire resistance measurement using
DMM - 37-pin male D-type to shrouded 4 mm bayonet plugs.
1 m length: 40-975-037-1m
4x-297A
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Ordering Information

Page 1.6 PXI/PXIe High Density Precision Resistor Module 40/42-297A
pickering
SECTION 1 - TECHNICAL SPECIFICATION
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 resistance range
• Alternative resolution
• Different number of channels
• 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.
View showing the Daughter card of the Precision Resistor
PXI & CompactPCI Compliance - 40-297A
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.
PXIe Compliance - 42-297A
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.
Other Resistor Modules
Pickering Interfaces manufacture a range of variable
resistor modules in PXI and PXIe format. If you have
a requirement for a variable resistor module please
contact your local sales office with the information
below and we will advise you on the best solution for
your application.
Lowest Resistance †
Highest Resistance
Resistance Resolution
Overall Accuracy
Maximum Power/Current
Number of Channels (variable resistors)
† Resistance is as measured across the user connector
terminals, minimum resistance must have a non-zero value.
4x-297A
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PXI/PXIe High Density Precision Resistor

Page 1.7
PXI/PXIe High Density Precision Resistor Module 40/42-297A
pickering SECTION 1 - TECHNICAL SPECIFICATION
The 4x-297A is part of a range of Precision Resistor Modules suitable for simulation applications.
For applications that do not require the precision or accuracy of our precision range, look to our PXI Standard Resistor range
which includes models 40-280, 40-281, 40-282, 40-290, 40-291, 40-292, 40-293, 40-294, 40-295 and 40-296.
Pickering’s Range of Precision Resistor Modules
Resistor
Type Channels Range Resolution Model No.
Precision 3 90 Ω to 8 kΩ <10 mΩ 40-260
Precision 2 1.5 Ω to 2.9 kΩ
or 10 Ω to 36 kΩ
<2 mΩ
or <15 mΩ 40-261
RTD
Simulator
18, 12
or 6
90 Ω to 250 Ω or
900 Ω to 2500 Ω
<8 mΩ
or <90 mΩ 40-262
RTD
Simulator
24, 20, 16,
12, 8 or 4
40 Ω to 900 Ω,
200 Ω to 4.5 kΩ
or 400 Ω to 9 kΩ
<10 mΩ, <50 mΩ
or <100 mΩ 40-263
Strain Gauge
Simulator 6, 4 or 2
350 Ω,
1 kΩ, 1.5 kΩ,
2 kΩ or 3 kΩ
<2 mΩ, <10 mΩ,
<12.5 mΩ, <20 mΩ
or <25 mΩ
40-265
High Density
Precision
18, 9, 6, 4
or 3 Up to 85.3 MΩ 0.125 Ω, 0.25 Ω, 0.5 Ω, 1 Ω, 2 Ω, 4 Ω or 8 Ω 4x-297A
High Density
Precision
18, 9, 6, 4
or 3 Up to 22.3 MΩ 0.125 Ω, 0.25 Ω, 0.5 Ω, 1 Ω or 2 Ω 40-298
40-26540-262 40-26340-260 40-261 40-2984x-297A
4x-297A
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PXI/PXIe High Density Precision Resistor

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Supporting Products & Software
Chassis Compatibility
The PXI versions of this module 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
Pickering LXI or LXI/USB Modular Chassis
Only accept our PXI Switching & Simulation Modules:
• Choose from 1000+ Pickering PXI 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
PXI and PXIe (with PXIe and/or Hybrid slots)
Chassis from any Vendor:
• Mix our 1000+ PXI/PXIe switching &
simulation modules with any vendor’s
PXI/PXIe instrumentation
• Embedded or remote Windows
PC control
• Real-time Operating System Support
• High data bandwidths, especially with PXI Express
• Integrated module timing and synchronization

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Supporting Products & Software
Connectors
& Backshells
Multi-way
Cable Assemblies
RF Cable
Assemblies
Breakouts
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. These accessories are detailed in Connector Accessories data sheets, where a
complete list and documentation can be found for each accessory.
Connector
Blocks
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.
• Fully supported on modern browsers and tablet operating systems.
• Built-in tutorials and videos allow you to get quickly up to speed.
• Store cable assemblies in the Cloud and develop over time.
• Each cable design has a downloadable PDF documentation file
detailing all specifications
Start designing your custom cabling, go to pickeringtest.com/cdt
Mass Interconnect
We recommend the use of a mass interconnect solution when an Interchangeable Test Adapter (ITA) is required for PXI/LXI
based test systems. Our modules are fully supported by 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 go to pickeringrelay.com

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Supporting Products & Software
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 more information go to 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, Simulink
• Marvin ATEasy
• MTQ Testsolutions Tecap Test & Measurement Suite
• Python
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 go to pickeringtest.com/software
DMM+ R3a
S+ R3b
DMM- R3c
S- R3d
DMM
S+ S-
DMM+ DMM-
aX1 aX3
aX4
aX7 aX9 aX11 aX13 aX15 aX17 aX19 aX21 aX23 aX25 aX27 aX31
aY1
aY2
aY3
aY4
Switch 1
bY1
bY2
bY3
bY4
bY5
bY6
bY7
bY8
bX1 bX5 bX7 bX9 bX11 bX13 bX15 bX17 bX19 bX21 bX23
R3a R3b
R3c R3d
Switch 2 Device Under Test
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 go to pickeringtest.com/spm

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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.
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 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
three years from the date of delivery to the original purchaser. Extended warranty and service agreements are available with
various levels for 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 go to pickeringtest.com/support
Available Product Resources
We have a library of resources including success stories, product and support videos, articles and white papers as well as
application-specific brochures to assist you. We have also published reference books on switching technology and the PXI and
LXI standards.
To view, download or request any of our product resources go to pickeringtest.com/resources
B
B
IRST
IRST
e
e

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