Pickering 40-570A User manual

pickeringtest.com
Issue 1.1 February 2020
40-570A User Manual
PXI High Density Multiplexer BRIC™ Module

Page (II) HIGH DENSITY MUX BRIC 40-570A
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Page (II) REED RELAY MODULE 40-110/115/120/125
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© COPYRIGHT (2020) 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)
HIGH DENSITY MUX BRIC 40-570A
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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) HIGH DENSITY MUX BRIC 40-570A
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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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HIGH DENSITY MUX BRIC 40-570A
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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
Mechanical 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 PXI Modules ..............................4.1
Module Architecture..............................................................4.2
Programming The Module ....................................................4.3
Using Pickering Drivers in LabVIEW ...................................4.5
Section 5
Connector Information................................................................5.1
Section 6
Troubleshooting ..........................................................................6.1
Section 7
Maintenance Information............................................................7.1
Fuse Replacement.................................................................7.1
Relay Look-Up Tables ...........................................................7.1
PCB Layout Diagrams...........................................................7.16
Module Removal From Chassis ...........................................7.18
Card Removal From BRIC.....................................................7.20
Card Replacement.................................................................7.22
CONTENTS

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THIS PAGE INTENTIONALLY BLANK

Page (VII)
HIGH DENSITY MUX BRIC 40-570A
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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
HIGH DENSITY MUX BRIC 40-570A
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
PXI High Density MUX BRIC™ 40-570A
ISSUE 1.0 FEB 2019
• High Density Multiplexer With Multiple
Configuration Options
• Wide Range of Sizes up to 6-Channel/160-Pole,
12-Channel/80-Pole, 24-Channel/40-Pole,
48-Channel/20-Pole, & 96-Channel/10-Pole
• Scalable (up to 6 relay cards)
• Expandable Via Common Loop-Thru Connector
With Isolation Switching for Optimal Signal
Integrity in Larger Systems
• Maximum Switch Current of 1A
• Switch up to 100V and up to 60W Max Power
• VISA, IVI & Kernel Drivers Supplied for
Windows
• Supported by PXI or LXI Chassis
• 3 Year Warranty
Switching Diagram for 40-570A High Density MUX In
6-Channel 160-Pole Format
CH1.1
CH5.2
CH5.160
CH1.2
CH1.160
CH5.1
CH6.2
CH6.160
CH6.1
CH2,2
CH2.160
CH2.1
CH3.2
CH3.160
CH3.1
CH4.2
CH4.160
CH4.1
COM.1
COM.2
COM.160
160 Poles
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5Channel 6
Common Loop-Thru
COM-LT.2
COM-LT.160
COM-LT.1
Common
The 40-570A is a High Density Multiplexer designed to simplify
the connection of a common set of test equipment to one of a
number of different devices for testing. It is ideal for applications
where the equipment needs to conduct the same test process
on a series of similar devices one at a time. It is available in a
variety of congurations that allow testing with differing number
of devices to be tested and different connection widths to suit
differing test equipment pin counts.
The 40-570A can be operated as a conventional multiplexer
with break-before-make action when a new channel is selected.
Alternatively, variants of the multiplexer can be supplied that
allow multiple channels to be simultaneously selected.
The 40-570A channel selection congurations have been
revised from the 40-570. The 40-570A module defaults to single
channel selection with multiple channel selection variants
dened by use of a sufx.
All versions of the 40-570A are supported in a BRIC8 format
that occupies 8 PXI 3U mechanical slots, one of which provides
the PXI interface and power.
MUX size can be ordered with different widths (pole counts)
and with different numbers of relay cards to support varying
number of devices to be tested. For example, the fully
populated 40-570A can be ordered in congurations supporting:
• 6 test devices with 160 connections
• 12 test devices with 80 connections
• 24 test devices with 40 connections
• 48 test devices with 20 connections
• 96 test devices with 10 connections
The pin layout of user connection is arranged to simplify the
cabling design. All versions use high quality electro-mechanical
relays with palladium-ruthenium gold covered contacts.

Page 1.2 HIGH DENSITY MUX BRIC 40-570A
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SECTION 1 - TECHNICAL SPECIFICATION
High Density MUX BRIC – 40-570A
pickeringtest.com
Overview
CH1
CH3
CH2
CH4
CH5
CH6
160
160
160
160
160
160
160
160
160
160
160
160
160
CH1
CH3
CH2
CH4
CH5
CH6
CH7
80
80
80
80
80
80
80
80
80
80
80
80
80
80
80
CH8
80 80
CH9
80 80
CH10
80 80
CH11
80 80
CH12
80 80
CH1
CH3
CH2
CH4
CH5
CH6
CH7
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
CH8
40 40
CH9
40 40
CH10
40 40
CH11
40 40
CH12
40 40
CH13
40 40
CH14
40 40
CH15
40 40
CH16
40 40
CH17
40 40
CH18
40 40
CH19
40 40
CH20
40 40
CH21
40 40
CH22
40 40
CH23
40 40
CH24
40 40
CH1
CH3
CH2
CH4
CH5
CH6
CH7
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
CH8
20 20
CH41
20 20
CH42
20 20
CH43
20 20
CH44
20 20
CH45
20 20
CH46
20 20
CH47
20 20
CH48
20 20
CH1
CH3
CH2
CH4
CH5
CH6
CH7
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
CH8
10 10
CH89
10 10
CH90
10 10
CH91
10 10
CH92
10 10
CH93
10 10
CH94
10 10
CH95
10 10
CH96
10 10
COM
160
LOOP-
THRU
160
COM
80
LOOP-
THRU
80
COM
40
LOOP-
THRU
40
COM
20
LOOP-
THRU
20
COM
10
LOOP-
THRU
10
6-Channel, 160-pole
Multiplexer
12-Channel, 80-pole
Multiplexer
24-Channel, 40-pole
Multiplexer
48-Channel, 20-pole
Multiplexer
96-Channel, 10-pole
Multiplexer
Switching Diagrams for the Five Possible Fully Populated Switching Configurations Available for the
40-570A High Density BRIC Multiplexer

Page 1.3
HIGH DENSITY MUX BRIC 40-570A
pickering SECTION 1 - TECHNICAL SPECIFICATION
High Density MUX BRIC – 40-570A
pickeringtest.com
Specifications
Switching Specification
Switch Type: Electro-mechanical
Contact Type: Palladium-Ruthenium, Gold
Covered Bifurcated
Max Switch Voltage: 100V*
Max Hot Switch Contact Power:
Max Switch Current:
Max Carry Current:
Max Combined Switch Path
Loading:
60W
1A
1A
25W continuous power
(for example:
160 x 395mA per path,
80 x 559mA per path,
40 x 791mA per path,
or 25 x 1A per path)
Initial On Path Resistance:
Off Path Resistance:
<1Ω
>109Ω
Operate Time: 6ms typical,
3ms for multichannel mode
Expected Life (operations)
Very low power signal load:
Low power load (2W):
Medium power load (30W):
Full power load (60W):
>1x108
>1.5x107(0.1A 20VDC)
>5x106(1A 30VDC)
>1x105(1A 60VDC)
Bandwidth - 40-570A-116
(50Ω system): 3dB insertion loss @ 12MHz,
-20dB crosstalk @ 2.5MHz,
please contact sales ofce
for advice concerning other
congurations
* For full voltage rating, signal sources to be switched must be fully
isolated from mains supply and safety earth.
Power Requirements
+3.3V +5V +12V -12V
100mA 6A max 0 0
Operating/Storage Conditions
Operating Conditions
Operating Temperature:
Humidity:
Altitude:
0°C to +55°C
Up to 90% non-condensing
5000m
Storage and Transport Conditions
Storage Temperature:
Humidity:
Altitude:
-20°C to +75°C
Up to 90% non-condensing
15000m
PXI & CompactPCI Compliance
The module is compliant with the PXI Specication 2.2. Local Bus,
Trigger Bus and Star Trigger are not implemented.
Uses a 33MHz 32-bit backplane interface.
Safety & CE Compliance
All modules are fully CE compliant and meet applicable EU
directives: Low-voltage safety EN61010-1:2010, EMC Immunity
EN61326-1:2013, Emissions EN55011:2009+A1:2010.
Mechanical Characteristics
Eight slot 3U PXI (CompactPCI card).
3D models for all versions in a variety of popular le formats are
available on request.
Connectors
PXI bus via 32-bit P1/J1 backplane connector.
Signals via multiple front panel 160-pin male DIN 41612 connectors
(Up to 8 per module), for pin outs please refer to the operating
manual.
Note: 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.
Relay Type
The 40-570A modules are tted with high quality electro-
mechanical relays with palladium-ruthenium gold covered contacts.

Page 1.4 HIGH DENSITY MUX BRIC 40-570A
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SECTION 1 - TECHNICAL SPECIFICATION
High Density MUX BRIC – 40-570A
pickeringtest.com
Ordering Information
Mating Connectors & Cabling
For connection accessories for the 40-570A modules 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 Customization
Pickering PXI modules are designed and manufactured on our own
exible manufacturing lines, giving complete product control and
enabling simple customization to meet very specic requirements.
Customization can include:
• Alternative relay types
• Mixture of relay types
• Alternative number of relays
• Different performance specications
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 ofce to discuss.
Product Order Codes -
High Density MUX BRIC
Channel
Selection Model Variant Order Code
Single
Single
Single
Single
Single
2-Channel, 160-Pole
3-Channel, 160-Pole
4-Channel, 160-Pole
5-Channel, 160-Pole
6-Channel, 160-Pole
40-570A-012
40-570A-013
40-570A-014
40-570A-015
40-570A-016
Single
Single
Single
Single
Single
Single
2-Channel, 80-Pole
4-Channel, 80-Pole
6-Channel, 80-Pole
8-Channel, 80-Pole
10-Channel, 80-Pole
12-Channel, 80-Pole
40-570A-111
40-570A-112
40-570A-113
40-570A-114
40-570A-115
40-570A-116
Single
Single
Single
Single
Single
Single
4-Channel, 40-Pole
8-Channel, 40-Pole
12-Channel, 40-Pole
16-Channel, 40-Pole
20-Channel, 40-Pole
24-Channel, 40-Pole
40-570A-211
40-570A-212
40-570A-213
40-570A-214
40-570A-215
40-570A-216
Single
Single
Single
Single
Single
Single
8-Channel, 20-Pole
16-Channel, 20-Pole
24-Channel, 20-Pole
32-Channel, 20-Pole
40-Channel, 20-Pole
48-Channel, 20-Pole
40-570A-311
40-570A-312
40-570A-313
40-570A-314
40-570A-315
40-570A-316
Single
Single
Single
Single
Single
Single
16-Channel, 10-Pole
32-Channel, 10-Pole
48-Channel, 10-Pole
64-Channel, 10-Pole
80-Channel, 10-Pole
96-Channel, 10-Pole
40-570A-411
40-570A-412
40-570A-413
40-570A-414
40-570A-415
40-570A-416
Note: The above modules are available in multiple channel
selection mode by adding the “-M” sufx to the part number.
For example, the 2-channel 160-pole MUX with multiple channel
capability would be: 40-570A-012-M
Note: Congurations can be altered on a return to the factory
basis, please contact Pickering sales ofce for details.
For the expansion of an existing BRIC multiplexer or
replacement of faulty BRIC daughter cards please contact your
local sales ofce.

Page 1.5
HIGH DENSITY MUX BRIC 40-570A
pickering SECTION 1 - TECHNICAL SPECIFICATION
High Density MUX BRIC – 40-570A
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 sister company, Pickering Electronics. These instrument grade reed relays feature
SoftCenter® technology, ensuring long service life and repeatable contact performance.
To learn more, please go to: pickeringrelay.com
Chassis Compatibility
This PXI module must be used in a suitable chassis. It is compatible with the following chassis types:
• All chassis conforming to the 3U PXI and 3U Compact PCI (cPCI) specication
• Legacy and Hybrid Peripheral slots in a 3U PXI Express (PXIe) chassis
• Pickering Interfaces LXI or LXI/USB Modular Chassis
Chassis Selection Guide
Standard PXI or hybrid PXIe Chassis from any Vendor:
• Mix our 1000+ PXI switching & simulation modules with any
vendor’s PXI instrumentation
• Embedded or remote Windows PC control
• Real-time Operating System Support
• High data bandwidths, especially with PXI Express
• Integrated module timing and synchronization
Pickering LXI or LXI/USB Modular Chassis—only accept
our 1000+ PXI Switching & Simulation Modules:
• Ethernet or USB control enables remote operation
• Low-cost control from practically any controller
• LXI provides manual control via Web browsers
• Driverless software support
• Power sequencing immunity
• Ethernet provides chassis/controller voltage isolation
• Independence from Windows operating system
Connectivity Solutions
We provide a full range of supporting cable and connector solutions for all our switching products—20 connector families with 1200+
products. We offer everything from simple mating connectors to complex cables assemblies and terminal blocks. All assemblies are
manufactured by Pickering and are guaranteed to mechanically and electrically mate to our modules.
Connectors & Backshells Multiway Cable Assemblies RF Cable Assemblies Connector Blocks

Page 1.6 HIGH DENSITY MUX BRIC 40-570A
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SECTION 1 - TECHNICAL SPECIFICATION
High Density MUX BRIC – 40-570A
pickeringtest.com
Supporting Products & Software
© Copyright (2020) 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 specic 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 dening 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 specically for our PXI, PCI or LXI
products, these tools simplify switching system fault-nding 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, as well as complete product
catalogs and product reference maps to assist when looking for the switching, simulation and cable and connector 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 2.1
HIGH DENSITY MUX BRIC 40-570A
pickering SECTION 2 - TECHNICAL DESCRIPTION
SECTION 2 - TECHNICAL DESCRIPTION
MECHANICAL DESCRIPTION
Figure 2.1 - Fully Populated 40-570A MUX BRIC Module
FUNCTIONAL DESCRIPTION
A functional block diagram is provided in Figure 2.2. The BRIC Module is powered by the +3.3V and +5V voltage
rails via the Compact PCI connector J1 mounted on the controller board. The bridge device, U1 provides the PXI
interface, and EPROMs U2 and U3 store the bridge and module conguration respectively. Relay control signals
in serial form are sent from the bridge, via the level translation devices, U5 to U11 to connector J3 on the controller
board. This mates with connector J1 on the BRIC backplane which distributes power and control signals to the other
BRIC sub-cards.
The BRIC backplane has card positions numbered Slot 1 to Slot 7. Slot 1 has the conguration relay card tted and
is double width to accommodate the loop-thru connector on the mezzanine board. Slots 2 to 7 are for the multiplexer
relay cards - between 1 and 6 can be tted depending upon the number of channels specied. The backplane
includes an analog bus which is daisy-chained between Slots 1 to 7. This has 160 separate signals to accommodate
the maximum pole count available for the MUX. Connector J1 on the backplane hosts the PXI controller board.
All versions of the MUX use the same multiplexer relay card. This comprises 80 double-pole electro-mechanical
relays and relay drivers, U2 to U6, which are serially controlled via the BRIC backplane. When energised, the relays
connect the signals on the DIN 41612 front panel connector to the backplane. The number of signals simultaneously
switched depends upon the pole count specied for the overall MUX module.
The conguration relay card in Slot 1 has a different build version depending upon the pole count required. In the
case of the 80-pole MUX, the 160 signals of the analog bus are divided into two groups and combined to produce 80
common signals. The commons are routed to a DIN 41612 connector on the front panel via changeover switches.
These switches allow the common connections from the front panel to be routed to either the MUX common on
the BRIC backplane, or a loop-thru connector which can be used for expansion of the multiplexer. The loop-thru
connector is in the rst connector position on the BRIC and is mounted on a mezzanine board which is in turn
mounted on the conguration relay card. Switching diagrams for the different versions of the 40-570A MUX are
shown in Figures 2.3 to 2.7.
The 40-570A BRIC Module comprises an alloy chassis with a PXI occupancy of 8 slots. This houses a backplane
and positions for 7 sub-cards. The rst position is occupied by the conguration card, the common connector and
the loop-thru connector (mounted as a mezzanine board on the conguration card). The remaining positions are
occupied by the multiplexer relay card that perform the switching function of the module. Depending upon the
overall size of the MUX, between one and six multiplexer relay cards can be tted. Also in the rst slot position is the
controller sub-board which links the PXI connector on the back of the BRIC to the BRIC backplane. This provides
the PXI interface for the module and controls the switching functions of the relay cards.

Page 2.2 HIGH DENSITY MUX BRIC 40-570A
pickering
SECTION 2 - TECHNICAL DESCRIPTION
PCI
BRIDGE
U1
PCI BRIDGE
CONFIGURATION
U2
TERMINATING
RESISTORS
R1 TO R14
COMPACT PCI BUS CONNECTOR J1
LEVEL
TRANSLATION
U5 TO U11
+5V
GND
BRIC
BACKPLANE
J14
-15
CONTROL BUS
VOLTAGE
SELECTION
J10
-11
J6-7
J2-3
ANALOG BUS
160-PIN DIN 41612 PLUG
J1-2
MUX
CHANNELS
RELAY
DRIVERS
U2 TO U6
J3
RELAY
COILS
MUX
(RELAYS
RL1-80)
COMMON
160-PIN DIN 41612 PLUG
J1-2
MUX
CHANNELS
RELAY
DRIVERS
U2 TO U6
J3
RELAY
COILS
MUX
(RELAYS
RL1-80)
COMMON
160-PIN DIN 41612 PLUG
J1-2
MUX
CHANNELS
RELAY
DRIVERS
U2 TO U6
J3
RELAY
COILS
MUX
(RELAYS
RL1-80)
COMMON
160-PIN DIN 41612 PLUG
J1-2
MUX
CHANNELS
RELAY
DRIVERS
U2 TO U6
J3
RELAY
COILS
MUX
(RELAYS
RL1-80)
COMMON
160-PIN DIN 41612 PLUG
J1-2
MUX
CHANNELS
RELAY
DRIVERS
U2 TO U6
J3
RELAY
COILS
MUX
(RELAYS
RL1-80)
COMMON
160-PIN DIN 41612 PLUG
MULTIPLEXER RELAY CARD 1
J1-2
MUX
CHANNELS
RELAY
DRIVERS
U2 TO U6
J3
RELAY
COILS
MUX
(RELAYS
RL1-80)
COMMON
CONFIGURATION CARD
J1-2 MUX
COM.
RELAY
DRIVERS
160-PIN DIN 41612 PLUG
J3
RELAY
COILS
COMMON
CHANGE-OVER
RELAYS
160-PIN DIN 41612 PLUG
J3
J4
J1
MULTIPLEXER RELAY CARD 2
MULTIPLEXER RELAY CARD 3
MULTIPLEXER RELAY CARD 4
MULTIPLEXER RELAY CARD 5
MULTIPLEXER RELAY CARD 6
LOOP-THRU
BOARD
J12
-13
J8-9
J4-5
J3 J1
+3.3V
+12V FUSES
MODULE
CONFIGURATION
U3
PXI CONTROLLER BOARD
SLOT 7SLOT 6SLOT 5SLOT 4SLOT 3SLOT 2SLOT 1
SLOT 0
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
DEPENDING UPON
THE VERSION,
5, 10, 20, 40 OR 80
RELAYS ARE FITTED
Figure 2.2 - 40-570A High
Density MUX BRIC Module:
Functional Block Diagram

Page 2.3
HIGH DENSITY MUX BRIC 40-570A
pickering SECTION 2 - TECHNICAL DESCRIPTION
ANALOG BACKPLANE
Front Panel 160-pin DIN 41612 Connector
MULTIPLEXER
RELAY CARD 1
CH1.1 CH1.160
160
Front Panel 160-pin DIN 41612 Connector
COM.1 COM.160
CONFIGURATION
RELAY CARD
LOOP-THRU BOARD
Front Panel 160-pin DIN 41612 Connector
COM-LT.1 COM-LT.160
160
MULTIPLEXER
RELAY CARD 2
MULTIPLEXER
RELAY CARD 3
MULTIPLEXER
RELAY CARD 4
MULTIPLEXER
RELAY CARD 5
MULTIPLEXER
RELAY CARD 6
2-Channel, 160-Pole (40-570A-012) 3-Channel, 160-Pole (40-570A-013) 4-Channel, 160-Pole (40-570A-014) 5-Channel, 160-Pole (40-570A-015) 6-Channel, 160-Pole (40-570A-016)
Front Panel 160-pin DIN 41612 Connector
CH2.1 CH2.160
160
Front Panel 160-pin DIN 41612 Connector
CH3.1 CH3.160
160
Front Panel 160-pin DIN 41612 Connector
CH4.1 CH4.160
160
Front Panel 160-pin DIN 41612 Connector
CH5.1 CH5.160
160
Front Panel 160-pin DIN 41612 Connector
CH6.1 CH6.160
160
Figure 2.3 - Switching Architecture of the 6-Channel, 160-Pole MUX

Page 2.4 HIGH DENSITY MUX BRIC 40-570A
pickering
SECTION 2 - TECHNICAL DESCRIPTION
Front Panel 160-pin DIN 41612 Connector
ANALOG BACKPLANE
CH11.1 CH11.80 CH12.1 CH12.80
Front Panel 160-pin DIN 41612 Connector
CH9.1 CH9.80 CH10.1 CH10.80
80
80
Front Panel 160-pin DIN 41612 Connector
CH7.1 CH7.80 CH8.1 CH8.80
80
Front Panel 160-pin DIN 41612 Connector
CH5.1 CH5.80 CH6.1 CH6.80
80
Front Panel 160-pin DIN 41612 Connector
CH3.1 CH3.80 CH4.1 CH4.80
80
Front Panel 160-pin DIN 41612 Connector
MULTIPLEXER
RELAY CARD 1
CH1.1 CH1.80 CH2.1 CH2.80
80
Front Panel 160-pin DIN 41612 Connector
COM.1 COM.80
CONFIGURATION
RELAY CARD
LOOP-THRU BOARD
Front Panel 160-pin DIN 41612 Connector
COM-LT.1 COM-LT.80
80
MULTIPLEXER
RELAY CARD 2
MULTIPLEXER
RELAY CARD 3
MULTIPLEXER
RELAY CARD 4
MULTIPLEXER
RELAY CARD 5
MULTIPLEXER
RELAY CARD 6
2-Channel, 80-Pole (40-570A-111) 4-Channel, 80-Pole (40-570A-112) 6-Channel, 80-Pole (40-570A-113) 8-Channel, 80-Pole (40-570A-114)
10-Channel, 80-Pole (40-570A-115) 12-Channel, 80-Pole (40-570A-116)
Figure 2.4 - Switching Architecture of the 12-Channel, 80-Pole MUX

Page 2.5
HIGH DENSITY MUX BRIC 40-570A
pickering SECTION 2 - TECHNICAL DESCRIPTION
ANALOG BACKPLANE
Front Panel 160-pin DIN 41612 Connector
MULTIPLEXER
RELAY CARD 1
40
Front Panel 160-pin DIN 41612 Connector
COM.1 COM.40
CONFIGURATION
RELAY CARD
LOOP-THRU BOARD
Front Panel 160-pin DIN 41612 Connector
COM-LT.1 COM-LT.40
40
MULTIPLEXER
RELAY CARD 2
MULTIPLEXER
RELAY CARD 3
MULTIPLEXER
RELAY CARD 4
MULTIPLEXER
RELAY CARD 5
MULTIPLEXER
RELAY CARD 6
4-Channel, 40-Pole (40-570A-211) 8-Channel, 40-Pole (40-570A-212)
12-Channel, 40-Pole (40-570A-213) 16-Channel, 40-Pole (40-570A-214) 20-Channel, 40-Pole (40-570A-215) 24-Channel, 40-Pole (40-570A-216)
Front Panel 160-pin DIN 41612 Connector
40
Front Panel 160-pin DIN 41612 Connector
40
Front Panel 160-pin DIN 41612 Connector
40
Front Panel 160-pin DIN 41612 Connector
40
Front Panel 160-pin DIN 41612 Connector
1 40
40
1 40 1 40 1 40
CH21 CH22 CH23 CH24
1 40 1 40 1 40 1 40
CH17 CH18 CH19 CH20
1 40 1 40 1 40 1 40
CH13 CH14 CH15 CH16
1 40 1 40 1 40 1 40
CH9 CH10 CH11 CH12
1 40 1 40 1 40 1 40
CH5 CH6 CH7 CH8
1 40 1 40 1 40 1 40
CH1 CH2 CH3 CH4
Figure 2.5 - Switching Architecture of the 24-Channel, 40-Pole MUX

Page 2.6 HIGH DENSITY MUX BRIC 40-570A
pickering
SECTION 2 - TECHNICAL DESCRIPTION
ANALOG BACKPLANE
Front Panel 160-pin DIN 41612 Connector
MULTIPLEXER
RELAY CARD 1
20
Front Panel 160-pin DIN 41612 Connector
COM.1 COM.20
CONFIGURATION
RELAY CARD
LOOP-THRU BOARD
Front Panel 160-pin DIN 41612 Connector
COM-LT.1 COM-LT.20
20
MULTIPLEXER
RELAY CARD 2
MULTIPLEXER
RELAY CARD 3
MULTIPLEXER
RELAY CARD 4
MULTIPLEXER
RELAY CARD 5
MULTIPLEXER
RELAY CARD 6
8-Channel, 20-Pole (40-570A-311)
16-Channel, 20-Pole (40-570A-312) 24-Channel, 20-Pole (40-570A-313) 32-Channel, 20-Pole (40-570A-314) 40-Channel, 20-Pole (40-570A-315) 48-Channel, 20-Pole (40-570A-316)
1 20
CH1 1 20 CH2 1 20 CH3 1 20 CH4 1 20 CH5 1 20 CH6 1 20 CH7 1 20 CH8
Front Panel 160-pin DIN 41612 Connector
20
1 20
CH9 1 20 CH10 1 20 CH11 1 20 CH12 1 20 CH13 1 20 CH14 1 20 CH15 1 20 CH16
Front Panel 160-pin DIN 41612 Connector
20
1 20
CH17 1 20 CH18 1 20 CH19 1 20 CH20 1 20 CH21 1 20 CH22 1 20 CH23 1 20 CH24
Front Panel 160-pin DIN 41612 Connector
20
1 20
CH25 1 20 CH26 1 20 CH27 1 20 CH28 1 20 CH28 1 20 CH30 1 20 CH31 1 20 CH32
Front Panel 160-pin DIN 41612 Connector
20
1 20
CH33 1 20 CH34 1 20 CH35 1 20 CH36 1 20 CH37 1 20 CH38 1 20 CH39 1 20 CH40
Front Panel 160-pin DIN 41612 Connector
20
1 20
CH41 1 20 CH42 1 20 CH43 1 20 CH44 1 20 CH45 1 20 CH46 1 20 CH47 1 20 CH48
Figure 2.6 - Switching Architecture of the 48-Channel, 20-Pole MUX