Pickering 42-724 User manual

pickeringtest.com
Issue 1.2 November 2022
40/42-724 User Manual
PXI/PXIe 32x8 RF Matrix Module

Page (II) 32X8 RF MATRIX MODULE 40/42-724
pickering
Page (II) REED RELAY MODULE 40-110/115/120/125
pickering
© COPYRIGHT (2022) PICKERING INTERFACES. ALL RIGHTS RESERVED.
No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by
any means without the written permission of Pickering Interfaces.
Technical details contained within this publication are subject to change without notice.
ISO 9001
Reg No. FM38792

Page (III)
32X8 RF MATRIX MODULE 40/42-724
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) 32X8 RF MATRIX MODULE 40/42-724
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)
32X8 RF MATRIX MODULE 40/42-724
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/PXIe Modules ...4.1
Module Architecture..............................................................4.2
Programming Sub-Units ......................................................4.3
Programming The Module ....................................................4.4
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
Component Layout ...............................................................7.3
CONTENTS

Page (VI) 32X8 RF MATRIX MODULE 40/42-724
pickering
THIS PAGE INTENTIONALLY BLANK

Page (VII)
32X8 RF MATRIX MODULE 40/42-724
pickering
Page (VII)
REED RELAY MODULE 40-110/115/120/125
pickering
WARNINGS AND CAUTIONS
WARNING - HAZARDOUS ENVIRONMENTS SYMBOL
atmospheres. If the product is to be used in hazardous environments we recommend that the user
ensures suitable protective measures are taken.
!
WARNING - DANGER OF ELECTRIC SHOCK SYMBOL
This module may contain hazardous voltages. Before removing the module from the rack remove all
supplies and disconnect user I/O signals.
Unused slots in the host chassis are populated with blanking plates to prevent access to user
I/O signals that may be present. Blanking panels are available to order from Pickering in a variety
of slot widths. If the product is not used in this manner for example by using an extender card then
additional care must be taken to avoid contact with exposed signals.
CAUTION - HANDLING OF ELECTROSTATIC-SENSITIVE DEVICES SYMBOL
Certain semiconductor devices used in this equipment are liable to damage due to static voltage.
Observe the following precautions when handling these devices in their unterminated state, or
sub-assemblies containing these devices:
1. Persons removing sub-assemblies from equipment using these devices must be earthed by a
wrist strap and a resistor at the point provided on the equipment.
2. Soldering irons used during the repair operations must be low voltage types with earthed tips and
isolated from the mains voltage by a double insulated transformer.
3. Outer clothing worn must be unable to generate static charges.
4.
anti-static bags.
CAUTION - PRODUCT DOCUMENTATION SYMBOL
and understood before attempting to install or operate the product.
!
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
All cleaning and servicing requires the equipment to be isolated and disconnected from the power source and user I/O
signals (refer to the Maintenance Section).
• Appropriate manual handling procedures should be followed as dictated by the weight of the individual module or
the combined weight of the modules & chassis.
• Should a fault occur with the module or chassis, immediately isolate and disconnect the incoming power to the
chassis and the user I/O signals.
• Ensure the equipment is installed, operated and maintained by trained and authorised personnel.
• For suitably equipped products in the event of an emergency press the red “emergency stop” button situated on
the front of the unit.

Page (VIII) 32X8 RF MATRIX MODULE 40/42-724
pickering
THIS PAGE INTENTIONALLY BLANK

Page 1.1
32X8 RF MATRIX MODULE 40/42-724
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
PXI/PXIe 32x8 RF Coaxial Matrix Modules 40/42-724
ISSUE 1.2 NOV 2022
yAvailable as PXI or PXIe Modules
yEasy to Use Loop-thru Option Allows Unlimited
X Axis Expansion
y300 MHz Usable Bandwidth, 150 MHz With Loop-thru
yVISA & IVI Drivers Supplied for Windows
yPXI Version Supported by PXI or LXI Chassis
ySupported by
eBIRST ™
y3 Year Warranty
40/42-724-021-L
32x8 Matrix With
Loop-Thru
The 40-724 (PXI) and 42-724 (PXIe) are RF matrix modules
suitable for switching frequencies up to 300 MHz. Having a
50 Ω characteristic impedance and front panel SMB
connectors, these modules provide a simple and scalable
bidirectional matrix for RF and are intended for the easy
construction of high performance switching systems.
The 40/42-724-021-L version includes Y loop-thru connectors
to allow easy matrix expansion between adjacent modules.
All X and Y connections have isolation switches. These can be
used to disconnect the matrix from the external test fixture to
maximize isolation and RF performance.
Matrix Operation
The 40/42-724 is a high density matrix designed to provide a
Y to X connection to maximize bandwidth.
This module is based on the same construction as the
popular 40-725 RF matrix, but has increased capacity and
optional Y axis loop thru allowing easy expansion.
Supported by eBIRST
This module is supported by eBIRST test tools. These
simplify switching fault-finding by quickly testing the
system and graphically identifying the faulty relay.
For more information go to: pickeringtest.com/ebirst
Other RF Matrix Modules in Pickering’s PXI Range:
40-725 8x9 500 MHz, 50 Ω/75 Ω
40-726A 12x8 300 MHz, 50 Ω/75 Ω - Optional Y Loop-Thru
40-727 16x4 300 MHz, 50 Ω/75 Ω - Optional Y Loop-Thru
40-728 16x2 300 MHz, 50 Ω/75 Ω - Optional Y Loop-Thru
40-729 8x4 300 MHz, 50 Ω/75 Ω - Optional Y Loop-Thru
40-750 8x2 1.5 GHz, 50 Ω/75 Ω - Y Loop-Thru
40/42-877A Single/dual 2x2 2.5 GHz, 50 Ω
40/42-837A Single/dual 2x2 2.5 GHz, 75 Ω
45-720A 6 U, 16x16 250 MHz, 50 Ω/75 Ω - Y Loop-Thru
Alternative LXI Ethernet Controlled RF Matrices:
60-760 Single/Dual 24x8 25 MHz, 50 Ω
60-711 Single/Dual 24x8 25 MHz, 75 Ω
65-110A Scalable 24x8 to 104x16 200 MHz, 50 Ω
Y1
Y2
Y3
Y4
X1 X2 X3 X4 X5 X6 X30 X31 X32
Y5
Y6
Y7
Y8
Isolation
Switches
Crosspoint
40/42-724-021 32x8 Matrix Without Loop-Thru
Y1
Y2
Y3
Y4
X1 X2 X3 X4 X5 X6 X30 X31 X32
Y5
Y6
Y7
Y8
Isolation
Switches
Crosspoint
YLT1 YLT2 YLT3 YLT4 YLT5 YLT6 YLT7 YLT8

Page 1.2 32X8 RF MATRIX MODULE 40/42-724
pickering
SECTION 1 - TECHNICAL SPECIFICATION
32x8 RF Coaxial Matrix, 40/42-724
pickeringtest.com
Overview
96x8 RF Matrix Created from 2-off 40/42-724-021-L and 1-off 40/42-724-021
(Loop-thru cables interconnect the Y-buses of each 32x8 matrix module)
Y Axis Loop-Thru
The easy to use loop-thru option allows 40/42-724 modules to be cascaded to form larger matrices whilst
minimizing impact on RF performance.
The 40/42-724-021-L version of the module has Y loop-thru connectors on the front panel which are simply
plugged into the Y connectors of the adjacent matrix module via SMB to SMB coaxial cables.
The loop thru system is designed to provide an extended connection from Y to X.
The inter-module front panel wiring for an example 96x8 matrix is shown below and the switching diagram is
show overleaf.
40/42-724-021-L
Module #1
40/42-724-021-L
Module #2
40/42-724-021
Module #3
X Connections
Y Connections
Y Loop-Thru
Connections
Y Loop-Thru
Coaxial Cables
pickering pickering pickering
X Connections

Page 1.3
32X8 RF MATRIX MODULE 40/42-724
pickering SECTION 1 - TECHNICAL SPECIFICATION
32x8 RF Coaxial Matrix, 40/42-724
pickeringtest.com
Overview
Y1 Y2 Y3 Y4
X1
X2
X3
X4
X31
X32
Y5 Y6 Y7 Y8
40/42-724-021-L Module #1
X33
X34
X35
X36
X63
X64
40/42-724-021-L Module #2
X65
X66
X67
X68
X95
X96
40/42-724-021 Module #3
X Connections
Y Connections
Y Loop-Thru
Coaxial Cables
Y Loop-Thru
Coaxial Cables
2 off 40-724-021-L and 1 off 40-724-021 32x8 RF Matrix Modules Interconnected as a 96x8 Matrix

Page 1.4 32X8 RF MATRIX MODULE 40/42-724
pickering
SECTION 1 - TECHNICAL SPECIFICATION
32x8 RF Coaxial Matrix, 40/42-724
pickeringtest.com
Specifications
40/42-724-0xx Insertion Loss For X to Y Signal Paths 40/42-724-0xx-L Insertion Loss For X to Y Signal Paths
40/42-724-0xx-L VSWR For X to Y Signal Paths
40/42-724-0xx VSWR For X to Y Signal Paths
RF Performance Plots for 40/42-724 RF Matrix Module

Page 1.5
32X8 RF MATRIX MODULE 40/42-724
pickering SECTION 1 - TECHNICAL SPECIFICATION
32x8 RF Coaxial Matrix, 40/42-724
pickeringtest.com
Specifications
General Matrix Switching Specification
Maximum Switch Voltage:
Maximum Switch Current:
Maximum Switch Power:
100 V
0.5 A
10 W
Characteristic Impedance: 50 Ω
On Path Resistance:
Off Path Resistance:
<1000 mΩ
>108 Ω
Expected Life - Matrix:
Expected Life - Loop-Thru:
1x109 operations
1x107 operations
Operate Time:
Release Time:
<1 ms, 0.5 ms typical
<1 ms, 0.5 ms typical
Matrix Closure Limit: Only a single X should be
switched to any Y point at
the same time.
Mechanical Characteristics
40-724 - Dual slot 3U PXI (CompactPCI card).
42-724 - Dual slot 3U PXIe, compatible with PXIe hybrid
slot.
Module weight: 580 g (fully populated 32x8 with loop-thru)
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 mounted SMB coaxial panel connectors:
RF Specification - 40/42-724-0xx
Maximum Frequency: Usable to 300 MHz
Insertion Loss (typical) †: 300 MHz <3 dB
VSWR (typical) †: <2.5:1 to 150 MHz
Crosstalk (typical) †: 10 MHz:
100 MHz:
300 MHz:
-60 dB
-40 dB
-30 dB
Isolation (typical): 10 MHz:
100 MHz:
300 MHz:
100 dB
80 dB
70 dB
Loop Thru RF Specification - 40/42-724-0xx-L
Maximum Frequency: Usable to 150 MHz *
Insertion Loss (typical): 100 MHz: <3 dB
VSWR (typical): <2.5:1 to 100 MHz
Crosstalk (typical): 10 MHz:
100 MHz:
-60 dB
-40 dB
Isolation (typical): 10 MHz:
100 MHz:
100 dB
80 dB
† RF performance is entirely dependant upon the
combination of crosspoints selected, the figures shown are
for one selected crosspoint on any X or Y channel only.
For further assistance on getting maximum performance
from the 40/42-724 please refer to the uperating manual.
* The lower RF performance of the 40/42-724-0xx-L
versions is due to the loop-thru connections not having
isolation switching.
Relay Type
The 40/42-724 is fitted with ruthenium sputtered reed
relays. A spare reed relay is built onto the daughter board
to allow easy maintenance with minimum downtime. All
reed relays are manufactured by our Relay Division:
pickeringrelay.com
Power Requirements - 40-724
+3.3 V +5 V +12 V -12 V
65 mA 1.8 A 0 0
Power Requirements - 42-724
+3.3 V +12 V
65 mA 900 mA
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 - 40-724
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 - 42-724
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.

Page 1.6 32X8 RF MATRIX MODULE 40/42-724
pickering
SECTION 1 - TECHNICAL SPECIFICATION
32x8 RF Coaxial Matrix, 40/42-724
pickeringtest.com
Ordering Information
Support Products
eBIRST Switching System Test Tool
40/42-724 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
40/42-724-0xx
40/42-724-0xx-L
93-002-001
93-002-001
93-002-202
93-002-202
Mating Connectors & Cabling
For connection accessories for the 40/42-724 modules
please refer to the 90-011D RF Cable Assemblies data
sheet where a complete list and documentation can be
found for accessories, or refer to the Connection Solutions
catalog.
Product Order Codes
PXI 32x8 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
40-724-021
40-724-021-L
PXI 32x4 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
40-724-022
40-724-022-L
PXI 16x8 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
40-724-011
40-724-011-L
PXI 16x4 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
40-724-012
40-724-012-L
PXIe 32x8 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
42-724-021
42-724-021-L
PXIe 32x4 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
42-724-022
42-724-022-L
PXIe 16x8 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
42-724-011
42-724-011-L
PXIe 16x4 RF Coaxial Matrix:
SMB, 50Ω
SMB, 50Ω with loop-thru on Y axis
42-724-012
42-724-012-L
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.
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.
42-724-021-L PXIe 32x8 Matrix With Loop-Thru
40/42-724-021 32x8 Matrix Without Loop-Thru

Page 1.7
32X8 RF MATRIX MODULE 40/42-724
pickering SECTION 1 - TECHNICAL SPECIFICATION
32x8 RF Coaxial Matrix, 40/42-724
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 1.8 32X8 RF MATRIX MODULE 40/42-724
pickering
SECTION 1 - TECHNICAL SPECIFICATION
32x8 RF Coaxial Matrix, 40/42-724
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 1.9
32X8 RF MATRIX MODULE 40/42-724
pickering SECTION 1 - TECHNICAL SPECIFICATION
PERFORMANCE GRADIENT
The bandwidth performance of the 40/42-724 family varies greatly dependent on the selected signal path. The
following images dene, in terms of frequency, the -3db insertion loss point for all paths within the 40/42-724-021
and 40/42-724-021 modules.
Figure 1.1 - 40/42-724-021 Bandwidth Variation with Signal Path
3dB Bandwidth

Page 1.10 32X8 RF MATRIX MODULE 40/42-724
pickering
SECTION 1 - TECHNICAL SPECIFICATION
Figure 1.2 - 40/42-724-021-L Bandwidth Variation with Signal Path
3dB Bandwidth

Page 2.1
32X8 RF MATRIX MODULE 40/42-724
pickering SECTION 2 - TECHNICAL DESCRIPTION
SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
A functional block diagram for the 40/42-724 is provided in Figure 2.1. The RF matrix Module is powered by 3.3V
and 5V inputs via Compact PCI connector J1, or 3.3V and 12V inputs via PXIe connector XJ3 and XJ4. The interface
to the user test equipment is via front panel mounted coaxial connectors. The module is populated with reed relays
arranged as a 32x8 RF matrix on two 16x8 daughter boards with isolation switching as well as loop-thru for the Y
signals. The relays are energised via control signals from relays drivers U1 to U11. The relay drivers are fed with
serial data from PCI bridge U1 via isolators U16 to U20. Module conguration is determined by data stored in
EEPROM U8, the PCI bridge U1 is congured by EEPROM U7.
A 16x8 version is available constructed with a single matrix daughter board. Also, 16x4 and 32x4 versions are
available having one or two partially populated daughter boards respectively. Detailed switching diagrams for all
versions showing the default contact states, with and without optional loop-thru is given in Figures 2.2 to 2.5.
PCI Bridge
Configuration
U9-10
Level
Translators
U2-3
PCI Bridge U1
Mother Board
GND
Module
Configuration
U8
Compact PCI Bus Connector J1 (40-724-0x1)
PXI/PXIe 32x8/16x8 RF Matrix Module 40/42-724-0x1
+5V
+3.3V
16x8 Matrix
Daughter Board 1
(fitted to
40/42-724-021
& 40/42-724-011)
PCB Interconnection
Relay
Drivers
U1-11
Relay
Drivers
U1-11
X1-16
Connections
16x8 Matrix
Daughter Board 2
(fitted to
40/42-724-021 only)
Reed Relays RL1-176
Reed Relays RL1-176
Front Panel SMB Connectors
Y1-8
Connections
X17-32
Connections
YLT1-8*
Connections
Front Panel SMB Connectors
*YLT1-8 Connections are only fitted to 40/42-724-0x1-L versions with loop-thru
Matrix Y-bus interconnections
GND
PXIe Connectors XJ3 & XJ4 (42-724-0x1)
+12V
+3.3V
PCB Interconnection
Digital Isolators U16-20
Figure 2.1 - 32x8/16x8 RF Matrix Module 40/42-724-0x1: Functional Block Diagram
Note: The 32x4/16x4 (40/42-724-0x2) versions have the same architecture but have partially
populated 16x4 daughter boards and only 4 Y connections.

Page 2.2 32X8 RF MATRIX MODULE 40/42-724
pickering
SECTION 2 - TECHNICAL DESCRIPTION
X1
RL128 RL127 RL126 RL125 RL124 RL123 RL122 RL121
RL120 RL119 RL118 RL117 RL116 RL115 RL114 RL113
RL48 RL47 RL46 RL45 RL44 RL43 RL42 RL41
RL40 RL39 RL38 RL37 RL36 RL35 RL34 RL33
RL96 RL95 RL94 RL93 RL92 RL91 RL90 RL89
RL88 RL87 RL86 RL85 RL84 RL83 RL82 RL81
RL16 RL15 RL14 RL13 RL12 RL11 RL10 RL9
RL8 RL7 RL6 RL5 RL4 RL3 RL2 RL1
RL160
RL144
RL159
RL143
RL158
RL142
RL157
RL141
RL156
RL140
RL155
RL139
RL154
RL138
RL153
RL137
RL152
RL136
RL151
RL135
RL150
RL134
RL149
RL133
RL148
RL132
RL147
RL131
RL146
RL130
RL145
RL129
RL176 RL172
RL175 RL171
RL166 RL162
RL165 RL161
X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16
RL112 RL111 RL110 RL109 RL108 RL107 RL106 RL105
RL104 RL103 RL102 RL101 RL100 RL99 RL98 RL97
RL80 RL79 RL78 RL77 RL76 RL75 RL74 RL73
RL72 RL71 RL70 RL69 RL68 RL67 RL66 RL65
RL174 RL170
RL173 RL169
RL64 RL63 RL62 RL61 RL60 RL59 RL58 RL57
RL56 RL55 RL54 RL53 RL52 RL51 RL50 RL49
RL32 RL31 RL30 RL29 RL28 RL27 RL26 RL25
RL24 RL23 RL22 RL21 RL20 RL19 RL18 RL17
RL168 RL164
RL167 RL163
X17
RL89 RL90 RL91 RL92 RL93 RL94 RL95 RL96
RL81 RL82 RL83 RL84 RL85 RL86 RL87 RL88
RL9 RL10 RL11 RL12 RL13 RL14 RL15 RL16
RL1 RL2 RL3 RL4 RL5 RL6 RL7 RL8
RL121 RL122 RL123 RL124 RL125 RL126 RL127 RL128
RL113 RL114 RL115 RL116 RL117 RL118 RL119 RL120
RL41 RL42 RL43 RL44 RL45 RL46 RL47 RL48
RL33 RL34 RL35 RL36 RL37 RL38 RL39 RL40
RL145
RL129
RL146
RL130
RL147
RL131
RL148
RL132
RL149
RL133
RL150
RL134
RL151
RL135
RL152
RL136
RL153
RL137
RL154
RL138
RL155
RL139
RL156
RL140
RL157
RL141
RL158
RL142
RL159
RL143
RL160
RL144
RL172 RL176
RL171 RL175
RL162 RL166
RL161 RL165
X18 X19 X20 X21 X22 X23 X24 X25 X26 X27 X28 X29 X30 X31 X32
RL73 RL74 RL75 RL76 RL77 RL78 RL79 RL80
RL65 RL66 RL67 RL68 RL69 RL70 RL71 RL72
RL105 RL106 RL107 RL108 RL109 RL110 RL111 RL112
RL97 RL98 RL99 RL100 RL101 RL102 RL103 RL104
RL170 RL174
RL169 RL173
RL25 RL26 RL27 RL28 RL29 RL30 RL31 RL32
RL17 RL18 RL19 RL20 RL21 RL22 RL23 RL24
RL57 RL58 RL59 RL60 RL61 RL62 RL63 RL64
RL49 RL50 RL51 RL52 RL53 RL54 RL55 RL56
RL164 RL168
RL163 RL167
16x8 RF Matrix Daughter Board 1
16x8 RF Matrix Daughter Board 2
Y1
Y2
Y7
Y8
Y3
Y4
Y5
Y6
YLT1*
YLT2*
YLT3*
YLT4*
YLT5*
YLT6*
YLT7*
YLT8*
Figure 2.2 - 40/42-724-021 32x8 RF Matrix Module:
Switching Diagram Showing Default Switch Positions
*Connections YLT1-8 are only tted to the 40/42-724-021-L which includes Y loop-thru