pickering 40-121 PXI Switched Guard Reed Relay Module User Manual

40-121 User Manual
PXI Switched Guard Reed Relay Module

40-121 PXI Switched Guard Reed Relay Module

© COPYRIGHT (2023) PICKERING INTERFACES. ALL RIGHTS RESERVED.
No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by any means without the written permission of Pickering Interfaces.
Technical details contained within this publication are subject to change without notice.

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 fulfil 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

Pickering Interfaces Headquarters
Stephenson Road Clacton-on-Sea CO15 4NL United Kingdom
Tel: +44 (0)1255-687900
E-Mail: [email protected]
USA
Tel: (West) +1 541 471 0700
Tel: (East) +1 781 897 1710
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France
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Germany
Tel: +49 89 125 953 160
E-mail: [email protected]
Sweden
Tel: +46 340-69 06 69
E-mail: [email protected]
Czech Republic
Tel: +420 558 987 613
E-mail: [email protected]
China
Tel: +86 4008 799 765
E-mail: [email protected]

PRODUCT SAFETY

SAFETY SYMBOLS
The following safety symbols may be used on the product and throughout the product documentation.

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.

WARNING  –  HAZARDOUS ENVIRONMENTS	SYMBOL
This product is not specifically 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 specification, 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 classified 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) fitted with these devices must be stored and transported in anti-static bags.

CAUTION – PRODUCT DOCUMENTATION	SYMBOL
Suitably qualified & 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.

SECTION 1 – TECHNICAL SPECIFICATION

• 26x or 13x SPST Relays or 16x or 8x 2:1 Multiplexers per Module
• Switched Guard for Maximized Isolation Resistance
• Up to 10 13 Ω Isolation Resistance
• Uses High Reliability Pickering Ruthenium
  Reed Relays For Maximum Performance
• Fast Operating Speed 500 µs Typical
• Switch up to 100 V
• Drivers Supplied for Windows & Linux, Plus Support for Real-time Systems
• Supported by PXI or LXI Chassis
• 3 Year Warranty

The 40-121 provides 26 or 13 SPST switches or 16 or 8 2:1 multiplexers in a single slot PXI module and designed to provide an isolation resistance in excess of 10 13 Ω.
It has been designed to ensure high isolation resistance through the use of switched guards, making it ideal for low level measurements and semiconductor test.

Relay Type
The 40-121 is fitted with ruthenium sputtered reed relays, these offer very long life with good low level switching performance and excellent contact resistance stability. Spare reed relays are built onto the circuit board to allow easy maintenance with minimum downtime. All reed relays are manufactured by our Relay Division: pickeringrelay.com

Pickering’s Range of Switched Guard Modules:
40-121-001	26 x SPST Switches
40-121-002	13 x SPST Switches
40-121-011	16 x 2:1 Multiplexers
40-121-012	8 x 2:1 Multiplexers
4x-590-101	16×4 Matrix
4x-590-102	8×4 Matrix
65-290-002	8×16 Matrix (plug-in module for 65-200 LXI Scalable Chassis)

26x SPST Switched Guard Reed Relay Module Switching Diagram (Part No. 40-121-001)

16x 2:1 Multiplexer Switched Guard Reed Relay Module Switching Diagram (Part No. 40-121-011)

Switching Specification

Switch Type:	Pickering Reed Relay (Ruthenium Sputtered)
Max Switch Voltage: Max Guard Voltage:	100 V * 100 V *
Max Power: Max Switch Current:	20 W 1 A
Bandwidth (-3 dB):	150 MHz
Typical Operate Time: Settling Time:	0.5 ms 2 minutes
Initial On Path Resistance: Off Path Resistance: Offset Voltage (EMF after 5 min.): Offset Current **: Isolation Resistance:	Signal: <400 mΩ (typical) Guard: <200 mΩ (typical) >109 Ω TBC TBC Up to 1013  Ω †
Capacitance, Channel Crosstalk (signal-to-signal): Capacitance, Guard Crosstalk (signal-to-guard):	TBC TBC
Expected Life, low power: Expected Life, high power:	1×10 9  operations >1×106 operations

* For full voltage rating, signal sources to be switched must be fully isolated from mains supply and safety earth.
** When zero voltage applied to all input & output ports. † Point to point utilising the driven guard, 10 V drive, 21 ºC, 40 % RH.

Power Requirements

+3.3 V	+5 V	+12 V	-12 V
250 mA	500 mA	0	0

Mechanical Characteristics
Single slot 3U PXI (CompactPCI card).
Module weight: 330 g
3D models for all versions in a variety of popular file formats are available on request.

Connectors
PXI bus via 32-bit P1/J1 backplane connector.
Signals via front panel connectors:

• 40-121-001 2x male 26-pin MS-M RF multi-way
• 40-121-002 1x male 26-pin MS-M RF multi-way
• 40-121-011 2x male 26-pin MS-M RF multi-way
• 40-121-012 1x male 26-pin MS-M RF multi-way

Operating/Storage Conditions

Operating Temperature: 0 °C to +55 °C
Humidity: Up to 90 % non-condensing Altitude: 5000 m
Storage Temperature: -20 °C to +75 °C
Humidity: Up to 90 % non-condensing
Altitude: 15000 m

Product Order Codes
Switched Guard Reed Relay Module:

26x SPST Switches	40-121-001
13x SPST Switches	40-121-002
16x 2:1 Multiplexers	40-121-011
8x 2:1 Multiplexers	40-121-012

Product Customization
Pickering’s modules are designed and manufactured on our own flexible manufacturing lines, giving complete product control and enabling simple customization to meet very specific requirements.
Customization can include:

• Alternative reed relay types
• Mixture of reed relay types
• Alternative number of relays
• Different performance specifications

All customized products are given a unique part number, fully documented and may be ordered at any time in the future. Please contact your local sales office to discuss.

40-121-001 PXI Switched Guard Reed Relay Module With Connector Covers Removed

Support Products
Mating Connectors & Cabling
For connection accessories for the 40-121 please refer to the 90-017D 26-pin MS-M RF Connector Accessories data sheet where a complete list and documentation can be found for accessories.

Pickering Electronics State-Of-The-Art Reed Relays
This module is constructed using custom reed relays manufactured by our Relay Division.
Sputtered RutheniumReed Relays offer maximum performance, they are hermetically sealed and offer a very stable, long life relay contact (typically 10 9 operations) with very fast operate time. Alternative types such as electro-mechanical armature relays or noninstrumentation grade reed relays are lower cost but do not offer the consistent contact resistance, long life, fast switching speed and low level switching capability of a reed relay.
All of the reed relays used in our matrix switching modules are manufactured by our Relay Division, these offer maximum switching performance. Please visit the reed relay web site at pickeringrelay.com for further information.

PXI & CompactPCI Compliance
The module is compliant with the PXI Specification 2.2. Local Bus, Trigger Bus and Star Trigger are not implemented.
Uses a 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.

Chassis Compatibility
This PXI module must be used in a suitable chassis. It is compatible with the following chassis types:

• All chassis conforming to the 3U PXI and 3U Compact PCI (cPCI) specification
• Legacy and Hybrid Peripheral slots in a 3U PXI Express (PXIe) chassis
• Pickering Interfaces LXI or LXI/USB Modular Chassis

Chassis Selection Guide
Standard PXI or hybrid PXIe Chassis From Any Vendor:

• Mix our 1000+ PXI switching & simulation modules with any vendor’s PXI instrumentation
• Embedded or remote Windows PC control
• Real-time Operating System Support
• High data bandwidths, especially with PXI Express
• Integrated module timing and synchronization

Pickering LXI or LXI/USB Modular Chassis
Only accept our 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

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.

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

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 support is provided for LabVIEW Real Time Operating Systems (Pharlap and Linux-RT). For other RTOS support contact Pickering. These drivers may be used with a variety of programming environments and applications including:

• Pickering Interfaces Switch Path Manager
• National Instruments products (LabVIEW, LabWindows/CVI, Switch Executive, MAX, TestStand, VeriStand, etc.)
• Microsoft Visual Studio products (Visual Basic, Visual C++)
• Programming Languages C, C++, C#, Python
• Keysight VEE and OpenTAP
• Mathworks MATLAB, Simulink
• 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 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 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 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

SECTION 2 – TECHNICAL DESCRIPTION

FUNCTIONAL DESCRIPTION
A functional block diagram is provided in Figure 2.1. The Switched Guard Module is powered by +5V and +3.3V inputs via Compact PCI connector J1. The interface to the user test equipment is via front panel mounted male 26-pin MS-M multi-way RF connectors, two for the 40-121-001/011 (J2 and J3) or one for the 40-121-002/012 (J2). The module comprises a PCB populated with 26 or 13 double pole reed relays arranged as SPST with switched guard, or 32 or 16 double pole reed relays arranged as 16 or 8 two channel multiplexers with switched guard. Each signal path utilizes one reed relay – one pole switches the signal, the other pole switches the guard. The relays are energised with control signals from relay drivers U10 & U11 via digital isolator U9. The isolator  is driven by PCI bridge U3. Module configuration is determined by data stored in EEPROM U6. PCI Bridge U3 is configured by EEPROM U8.Figure 2.1 – Switched Guard Reed Relay Module 40-121: Functional Block Diagram

SECTION 3 – INSTALLATION

Refer to the Warnings and Cautions at the front of this manual
Modular products require installation in a suitable PXI/LXI chassis. The module is designed for indoor use only.

PREOPERATION CHECKS (UNPACKING)

1. Check the module for transport damage and report any damage immediately to Pickering Interfaces.
   Do not attempt to install the product if any damage is evident.
2. Position the chassis relative to any other equipment the module(s) will connect with. Ensure the chassis is not connected to the electrical supply.
3. Ensure that the designated area for the chassis containing the module is of flat and solid construction to withstand and support the combined weight of the module(s) and chassis.

Figure 3.1 – Installing the Module into a PXI/cPCI/LXI Chassis

HARDWARE INSTALLATION
ELECTRICAL CONNECTION (CHASSIS)

1. The chassis must be electrically installed in accordance with local regional electrical codes by a qualified engineer.
2. The chassis must be grounded.

Electrostatic discharge can damage the components on the module. To avoid such damage in handling the board refer to page VII.
Ensure that there is adequate ventilation.

The module should be installed in accordance with the following procedure:

1. Ensure that the system is turned OFF but still connected to mains so that it remains grounded.
2. Choose an appropriate slot in the rack.
3. Remove the blanking plate for the chosen slot.
4. Ensure that the injector/ejector handle is in its downward position. Align the module with the card guides on the top and bottom of the slot.
   Do not raise the injector/ejector handle whilst inserting the module as the module will not insert properly.
5. Hold the handle whilst slowly sliding the module into the card guides until the handle catches on the injector/ ejector rail (refer to Figure 3.1).
6. Raise the injector/ejector handle until the module firmly seats into the backplane. The front panel of the module should be flush with the front panel of the chassis.
7. Secure the front panel of the module using both screws to the chassis front panel mounting rails.
8. In a system employing a remote control interface to connect an external controller to a PXI chassis or to link multiple chassis, power-up the system as follows:
   a. For a system comprising an external controller and one chassis, power up the chassis before powering up the external controller.
   b. For a system comprising more than one chassis, turn ON the last chassis in the system followed by the penultimate, etc, and finally turn ON the external controller or chassis containing the system controller.
9. For Pickering Interfaces modular LXI installation there is no requirement to use any particular power up sequence.

SOFTWARE INSTALLATION
First install the appropriate Pickering PXI switch card drivers by running the installer program Setup.exe (provided in a compressed zip file), either from the CD-ROM supplied, or by downloading the latest version from our website pickeringtest.com – the recommended method. Setup is accompanied by a ReadMe file containing additional installation information. A single installation covers all cards in the System 40, System 45 and System 50 ranges.
When installation completes, the installed drivers’ ReadMe file is offered for display. It can also be displayed later using a shortcut on the Programs>>Pickering menu.
If you are not a LabVIEW user you should choose the “full” version, and once that has been installed run the LabVIEW Runtime Engine installer via the shortcut on the Programs>>Pickering menu. In the absence of LabVIEW the Runtime Engine is required to support the Pickering Test Panels application.

TESTING OPERATION
After installation of the hardware and Pickering PXI Driver software package start the General Soft Front Panel (GSFP) using the desktop icon or via the Start menu (Start Menu-> Pickering Interfaces Ltd -> General Soft Front Panel).

Figure 3.2 – General Soft Front Panel Icon

A selector panel will appear, listing all installed Pickering PCI, PXI or LXI switch cards and resistor cards. Click on the card you wish to control, and a graphical control panel is presented allowing operation of the card. Panels can be opened simultaneously for all the installed cards.

Figure 3.3 – General Soft Front Panel Selector

More details how to use the GSFP can be found in the manual, via menu HelpManual

SECTION 4 – PROGRAMMING GUIDE

PROGRAMMING OPTIONS FOR PICKERING INTERFACES PXI MODULES
For information on the installation and use of drivers and the programming of Pickering’s products in various software environments, please refer to the Software User Manual.
This is available as a download from: https://www.pickeringtest.com/support/software-drivers-and-downloads
Also, it can be accessed from the DVD supplied with the product: <DVD_DRIVE>downloadsDocumentationSoftware-Manual.pdf

MODULE ARCHITECTURE
SPST Versions
The 40-121-001/002 are arrays of 26 or 13 independent reed relays. The relays are two pole – one pole switches the signal, the other pole switches the corresponding guard connection. In the default state, all signal and guard paths are open. Energising a particular relay creates a signal path between the C and A terminals for both the signal and its guard connection. The module’s switching architecture is shown in the default state in the diagrams below:

One sub-unit is used to control all the module’s relays as shown below. Enabling a particular bit closes the corresponding C to A signal path.

Sub- Unit	Bit	40-121-001 Signal Path (with relay energised)	40-121-002 Signal Path (with relay energised)	IVI Channel Names		Relay Number On PCB
1	1	C1 to A1	C1 to A1	Com1	Ch1	RL4
	2	C2 to A2	C2 to A2	Com2	Ch2	RL6
	3	C3 to A3	C3 to A3	Com3	Ch3	RL3
	4	C4 to A4	C4 to A4	Com4	Ch4	RL1
	5	C5 to A5	C5 to A5	Com5	Ch5	RL8
	6	C6 to A6	C6 to A6	Com6	Ch6	RL10
	7	C7 to A7	C7 to A7	Com7	Ch7	RL7
	8	C8 to A8	C8 to A8	Com8	Ch8	RL2
	9	C9 to A9	C9 to A9	Com9	Ch9	RL12
	10	C10 to A10	C10 to A10	Com10	Ch10	RL14
	11	C11 to A11	C11 to A11	Com11	Ch11	RL11
	12	C12 to A12	C12 to A12	Com12	Ch12	RL17
	13	C13 to A13	C13 to A13	Com13	Ch13	RL15
	14	C14 to A14	―	Com14	Ch14	RL18
	15	C15 to A15	―	Com15	Ch15	RL24
	16	C16 to A16	―	Com16	Ch16	RL21
	17	C17 to A17	―	Com17	Ch17	RL20
	18	C18 to A18	―	Com18	Ch18	RL16
	19	C19 to A19	―	Com19	Ch19	RL26
	20	C20 to A20	―	Com20	Ch20	RL27
	21	C21 to A21	―	Com21	Ch21	RL23
	22	C22 to A22	―	Com22	Ch22	RL19
	23	C23 to A23	―	Com23	Ch23	RL29
	24	C24 to A24	―	Com24	Ch24	RL30
	25	C25 to A25	―	Com25	Ch25	RL31
	26	C26 to A26	―	Com26	Ch26	RL32

2:1 Multiplexer Versions
The 40-121-011/012 is an array of 32 or 16 2-pole reed relays configured as a 16 or 8 channel 2:1 multiplexer. The multiplexers of each bank are formed from two relays – one for the CHx.1 signal path and one for the CHx.2 signal path. The relays are arranged so that one pole switches a signal and the other pole switches the corresponding guard. In the default state, all signal and guard paths are open. Energising a particular relay creates a signal path between the corresponding Cx and CHx.1 or Cx and CHx.2 terminals for both the signal and its guard connection.
The module’s switching architecture is shown in the default state in the diagram below:Each channel has one bit to control the “CHx.1” signal path and one bit to control the “CHx.2” signal path. When energised, both the Signal and Guard paths are closed simultaneously.
These bits are contained in a single sub-unit as shown in the table below.

Sub- Unit	Bit	40-121-011 Signal Path (with relay energised)	40-121-012 Signal Path (with relay energised)	IVI Channel Names		Relay Number on PCB
1	1	C1 to CH1.1	C1 to CH1.1	comA	chA1	RL7
	2	C1 to CH1.2	C1 to CH1.2	comA	chA2	RL8
	3	C2 to CH2.1	C2 to CH2.1	comB	chB1	RL3
	4	C2 to CH2.2	C2 to CH2.2	comB	chB2	RL4
	5	C3 to CH3.1	C3 to CH3.1	comC	chC1	RL1
	6	C3 to CH3.2	C3 to CH3.2	comC	chC2	RL2
	7	C4 to CH4.1	C4 to CH4.1	comD	chD1	RL5
	8	C4 to CH4.2	C4 to CH4.2	comD	chD2	RL6
	9	C5 to CH5.1	C5 to CH5.1	comE	chE1	RL11
	10	C5 to CH5.2	C5 to CH5.2	comE	chE2	RL12
	11	C6 to CH6.1	C6 to CH6.1	comF	chF1	RL15
	12	C6 to CH6.2	C6 to CH6.2	comF	chF2	RL16
	13	C7 to CH7.1	C7 to CH7.1	comG	chG1	RL13
	14	C7 to CH7.2	C7 to CH7.2	comG	chG2	RL14
	15	C8 to CH8.1	C8 to CH8.1	comH	chH1	RL9
	16	C8 to CH8.2	C8 to CH8.2	comH	chH2	RL10
	17	C9 to CH9.1	―	comI	chI1	RL18
	18	C9 to CH9.2	―	comI	chI2	RL19
	19	C10 to CH10.1	―	comJ	chJ1	RL17
	20	C10 to CH10.2	―	comJ	chJ2	RL21
	21	C11 to CH11.1	―	comK	chK1	RL20
	22	C11 to CH11.2	―	comK	chK2	RL24
	23	C12 to CH12.1	―	comL	chL1	RL22
	24	C12 to CH12.2	―	comL	chL2	RL23
	25	C13 to CH13.1	―	comM	chM1	RL26
	26	C13 to CH13.2	―	comM	chM2	RL27
	27	C14 to CH14.1	―	comN	chN1	RL31
	28	C14 to CH14.2	―	comN	chN2	RL32
	29	C15 to CH15.1	―	comO	chO1	RL28
	30	C15 to CH15.2	―	comO	chO2	RL29
	31	C16 to CH16.1	―	comP	chP1	RL25
	32	C16 to CH16.2	―	comP	chP2	RL30

PROGRAMMING THE MODULE
SPST Versions
Here are examples of using the drivers with the 40-121-001 (26 x SPST) module. Other modules in the range operate in the same way but have a different number of bits in the sub-unit.
Using PILPXI
To operate a relay the user could use the simple OpBit command or the WriteSub commands
OpBitWriteSub
Using PIPX40
setChannelState
setChannelPattern

Using pi40iv
The IVI driver has no special labelling for this card and treats the array of switches as a simple array, labelling the channels using the normal com./ch labelling tags.The IVI Swtch driver specification contains no bulk setting capabilities.

2:1 Multiplexer Versions
Here are examples of using the drivers with the 40-121-011 (16 x 2:1 MUX) module. Other modules in the range operate in the same way but have a different number of bits in the sub-unit.
Using PILPXI
To operate a relay the user could use the simple OpBit command or the WriteSub commands
OpBitWriteSub
Using PIPX40
setChannelState
setChannelPattern

Using pi40iv
The IVI driver has no special labelling for this card and treats the array of switches as a simple array, labelling the channels using the normal com./ch labelling tags.The IVI Swtch driver specification contains no bulk setting capabilities.

SECTION 5 – CONNECTOR INFORMATION

Figure 5.1 – Pinouts: 26xSPST Switched Guard Reed Relay Module 40-121-001 (2x male 26-pin MS-M multi-way RF connectors viewed from front of module)

Figure 5.2 – Pinouts: 13xSPST Switched Guard Reed Relay Module 40-121-002
(Male 26-pin MS-M multi-way RF connector viewed from front of module)

Figure 5.3 – Pinouts: 16x 2:1 Multiplexer Switched Guard Reed Relay Module 40-121-011
(2x male 26-pin MS-M multi-way RF connectors viewed from front of module)Figure 5.4 – Pinouts: 8x 2:1 Multiplexer Switched Guard Reed Relay Module 40-121-012
(Male 26-pin MS-M multi-way RF connector viewed from front of module)

SECTION 6 – TROUBLE SHOOTING

Refer to the Warnings and Cautions at the front of this manual

INSTALLATION PROBLEMS
The Plug & Play functionality of Pickering switch cards generally ensures trouble-free installation.
If you do experience any installation problems you should first ensure that all cards are properly seated in their slots. Improperly mated cards may go undetected by the operating system, or may be detected as a card of an unknown type. They can also cause the computer to freeze at various stages in the boot sequence.
If your system employs a remote control interface you should check the integrity of all remote control interface links. When the system is powered up, and during Windows start-up, you should expect to see periodic activity on the remote control interface RX/TX (yellow) indicators, clearing to leave only the PWR/LNK (green) LEDs illuminated. The RX/TX indicators should show activity when you attempt to access a card.

DIAGNOSTIC UTILITY
The Pickering Diagnostic Utility (accessible through the Programs>>Pickering>>PXI Utilities menu) generates a diagnostic report of the system’s PCI configuration, highlighting any potential configuration problems. Specific details of all installed Pickering switch cards are included. All the installed Pickering switch cards should be listed in the “Pilpxi information” section – if one or more cards is missing it may be possible to determine the reason by referring to the PCI configuration dump contained in the report, but interpretation of this information is far from straightforward, and the best course is to contact Pickering support: [email protected], if possible including a copy of the diagnostic report.
In the “VISA information” section, if VISA is not installed its absence will be reported. This does not affect operation using the Direct I/O driver, and is not a problem unless you wish to use VISA. VISA is a component of National Instruments LabWindows/CVI and LabVIEW, or is available as a standalone environment.
If VISA is present and is of a sufficiently recent version, the section “Pipx40 information” should present a listing similar to “Pilpxi information”.
Please note that the Diagnostic Utility cannot access cards if they are currently opened by some other application, such as the Test Panels or Terminal Monitor.

SWITCHING SYSTEM TEST TOOLS
Please refer to Section 7 – Maintenance Information.

SECTION 7 – MAINTENANCE INFORMATION

Refer to the Warnings and Cautions at the front of this manual

PERIODIC MAINTENANCE
This product and its corresponding chassis do not require any periodic maintenance.

GENERAL CLEANING

• Isolate the electrical power from the chassis and ensure that no user I/O signals are being applied.
• Wipe the product & chassis surfaces with a clean dry anti-static cloth only.

SOFTWARE UPDATE
For PXI modules operating in a PXI chassis, no module software updates are required. For the latest version of the driver please refer to our web site pickeringtest.com where links to our Software Download page will provide the latest version of the driver software for the various programming environments encountered.
For PXI modules which are supported in one of Pickering Interfaces’ Modular LXI Chassis (such as the 60-102B and 60-103B) no module software update is required. If the module was introduced after the LXI chassis was manufactured the module may not be recognized, in this case the chassis firmware may need upgrading. This is a simple process which is described in the manual for the Modular LXI Chassis.

RELAY LOOK-UP TABLES
The following pages provide a cross reference between the signal paths of the Relay Module and the physical relays on the PCB. The tables can be used in the fault finding process and should be used in conjunction with the corresponding PCB layout diagrams to identify the position of faulty relays.

TABLE 7.1 – Switched Guard Reed Relay Module, SPST Versions – Relay Numbering

Signal Path (with relay energised)	Relay No. 40-121-001	Relay No. 40-121-002
C1 to A1	RL4	RL4
C2 to A2	RL6	RL6
C3 to A3	RL3	RL3
C4 to A4	RL1	RL1
C5 to A5	RL8	RL8
C6 to A6	RL10	RL10
C7 to A7	RL7	RL7
C8 to A8	RL2	RL2
C9 to A9	RL12	RL12
C10 to A10	RL14	RL14
C11 to A11	RL11	RL11
C12 to A12	RL17	RL17
C13 to A13	RL15	RL15
C14 to A14	RL18	Not Fitted
C15 to A15	RL24	Not Fitted
C16 to A16	RL21	Not Fitted
C17 to A17	RL20	Not Fitted
C18 to A18	RL16	Not Fitted
C19 to A19	RL26	Not Fitted
C20 to A20	RL27	Not Fitted
C21 to A21	RL23	Not Fitted
C22 to A22	RL19	Not Fitted
C23 to A23	RL29	Not Fitted
C24 to A24	RL30	Not Fitted
C25 to A25	RL31	Not Fitted
C26 to A26	RL32	Not Fitted

TABLE 7.2 – Switched Guard Reed Relay Module, 2:1 Multiplexer Versions – Relay Numbering

Signal Path (with relay energised)	Relay No. 40-121-011	Relay No. 40-121-012
C1 to CH1.1	RL7	RL7
C1 to CH1.2	RL8	RL8
C2 to CH2.1	RL3	RL3
C2 to CH2.2	RL4	RL4
C3 to CH3.1	RL1	RL1
C3 to CH3.2	RL2	RL2
C4 to CH4.1	RL5	RL5
C4 to CH4.2	RL6	RL6
C5 to CH5.1	RL11	RL11
C5 to CH5.2	RL12	RL12
C6 to CH6.1	RL15	RL15
C6 to CH6.2	RL16	RL16
C7 to CH7.1	RL13	RL13
C7 to CH7.2	RL14	RL14
C8 to CH8.1	RL9	RL9
C8 to CH8.2	RL10	RL10
C9 to CH9.1	RL18	Not Fitted
C9 to CH9.2	RL19	Not Fitted
C10 to CH10.1	RL17	Not Fitted
C10 to CH10.2	RL21	Not Fitted
C11 to CH11.1	RL20	Not Fitted
C11 to CH11.2	RL24	Not Fitted
C12 to CH12.1	RL22	Not Fitted
C12 to CH12.2	RL23	Not Fitted
C13 to CH13.1	RL26	Not Fitted
C13 to CH13.2	RL27	Not Fitted
C14 to CH14.1	RL31	Not Fitted
C14 to CH14.2	RL32	Not Fitted
C15 to CH15.1	RL28	Not Fitted
C15 to CH15.2	RL29	Not Fitted
C16 to CH16.1	RL25	Not Fitted
C16 to CH16.2	RL30	Not Fitted

Figure 7.1 – 40-121-001/002 Switched Guard Reed Relay Module, SPST – Component Layout

Figure 7.2 – 40-121-011/012 Switched Guard Reed Relay Module, 2:1 Multiplexer – Component Layout