Pickering SYSTEM 10 User manual

Page (1)
R.F. MULTIPLEXER MODULE 10-740/740A
pickering
Issue 5.1 July 2019
User Manual
GPIB RF Multiplexer Module
(Model Nos. 10-740/740A)
pickeringtest.com pickering
SYSTEM 10/20
*Please contact Pickering for alternative
PXI/LXI/USB solutions
*

Page (II) R.F. MULTIPLEXER MODULE 10-740/740A
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Page (II) REED RELAY MODULE 40-110/115/120/125
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© COPYRIGHT (2019) PICKERING INTERFACES. ALL RIGHTS RESERVED.
No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by
any means without the written permission of Pickering Interfaces.
Technical details contained within this publication are subject to change without notice.
ISO 9001
Reg No. FM38792

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R.F. MULTIPLEXER MODULE 10-740/740A
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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) R.F. MULTIPLEXER MODULE 10-740/740A
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Page (IV) GENERAL PURPOSE REED RELAY MODULE 10-110/115/120/125
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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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R.F. MULTIPLEXER MODULE 10-740/740A
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Copyright Statement ...................................................................II
Technical Support and Warranty................................................III
Product Safety .............................................................................IV
Contents (this page)....................................................................V
Warnings and Cautions ..............................................................VII
Section 1
Technical Specication...............................................................1.1
Section 2
Technical Description .................................................................2.1
Functional Description..........................................................2.1
Section 3
Installation....................................................................................3.1
Pre-Operation Checks...........................................................3.1
Hardware Installation ............................................................3.1
Software Installation .............................................................3.3
Reconguring the Driver Card to Your Application ...........3.4
Interconnecting RF Switching Modules ..............................3.6
Section 4
Programming Guide....................................................................4.1
Programming the Module .....................................................4.1
Section 5
Connector Information................................................................5.1
Section 6
Trouble Shooting.........................................................................6.1
Installation Problems ...........................................................6.1
Section 7
Maintenance Information............................................................7.1
Relay Lookup Tables.............................................................7.1
PCB and Component Layout................................................7.4
CONTENTS
Please use the hyperlinked text to navigate to the page required

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Page (VII)
R.F. MULTIPLEXER MODULE 10-740/740A
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Page (VII)
GENERAL PURPOSE REED RELAY MODULE 10-110/115/120/125
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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 System 10/20 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. Printed Circuit Boards (PCBs) tted with these devices must be stored and transported in
anti-static bags.
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.

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Page 1.1
R.F. MULTIPLEXER MODULE 10-740/740A
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SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
GPIB RF Multiplexer Module 10-740A
ISSUE 5.2 JUL 2019
• Dual 8 to 1 R.F. Multiplexer with 150MHz
Bandwidth
• 50Ω Characteristic Impedance
• Configurable as 16 to 1 Multiplexer with
Reduced Bandwidth
• Front Panel Mounted BNC Plugs
• Front Panel Indicator LEDs
• Suitable for Many Screened Low Frequency
Applications
1
2
3
8
Common
1
2
3
8
Common
1
2
3
16
Common
1
2
3
8
Common
1
2
3
8
Common
1
2
3
16
Common
Dual 8-Channel RF Multiplexer Mode
Alternative 16-Channel RF Multiplexer Mode
Model 10-740A is a dual 8 to 1 RF Multiplexer with a bandwidth
up to 150MHz. The 10-740A may also be congured (via internal
DIP switches) as a 16 to 1 multiplexer but with reduced RF
performance. The multiplexer has a characteristic impedance of
50Ω.
The 10-740A is also suitable for low frequency applications
requiring BNC coaxial switching. It may be operated as a
normal RF multiplexer (with only 1 channel selected at a time),
alternatively 2 or more channels may be simultaneously selected
(but with much reduced RF performance).
Applications include routing high frequency signals to and from
oscilloscopes, analyzers, signal generators and synthesizers,
video/audio switching, switching high frequency logic and many
other situations involving coaxial or guarded switching.
Programming
The multiplexer module is simple to program:
ARESET a Open all channels on device a
DELAY t Force a minimum delay of tmilliseconds
between two instructions
RESET Open all switches on all modules
VIEW? a View status of device a
CHAN a,c Select channel con multiplexer a.
When in dual 8 to 1 mode the address is
prexed by 1 or 2.
CHAN a,c,s Multi-channel selection argument s
allows
opening/closing of any combination
of channels, but with reduced RF
performance.
*Please contact Pickering for alternative
PXI/LXI/USB solutions
*

Page 1.2 R.F. MULTIPLEXER MODULE 10-740/740A
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SECTION 1 - TECHNICAL SPECIFICATION
RF Multiplexer Module – 10-740A
pickeringtest.com
Specifications
Switching Specification
Characteristic Impedance: 50Ω
Maximum Frequency:
Rise Time:
Insertion Loss (<20GHz):
VSWR:
Isolation:
Crosstalk:
150MHz
2ns
<3dB
1:1.7
>55dB
>40dB
Maximum Voltage:
Maximum Power:
Maximum Switch Current:
Maximum Carry Current:
100V d.c.
10W
0.5A
1.2A
On Path Resistance:
Off Path Resistance:
Noise:
Differential Thermal Offset:
<250mΩ
>1011Ω
<-75dBm
<20µV
Capacitance, Open Channel:
Capacitance, Channel-Channel:
Capacitance, Open Channel-GND:
<0.1pF
<0.1pF
<15pF
Switching Time: 15ms
Expected Life (Low power):
Expected Life (Max power):
>1x108operations
>5x106 operations
Mechanical Characteristics
All models conform to the 3U height (128mm) Eurocard standard
and are 160mm deep. Panel width for the 10-740A module is 4.2
Inches.
Connectors
The 10-740A RF Multiplexer Module is available with 50Ω front
panel connectors. Alternative connectors are available to order
such as 1.0/2.3, SMZ, Mini SMB or BT type 43 - Please consult the
sales ofce.
Operating/Storage Conditions
Operating Conditions
Operating Temperature:
Humidity:
Altitude:
0°C to +55°C
Up to 95% non-condensing
5000m
Storage and Transport Conditions
Storage Temperature:
Humidity:
Altitude:
-20°C to +75°C
Up to 95% non-condensing
15000m
0 dB
-0.8 dB
-1.2 dB
-1.6 dB
-2.0 dB
-2.4 dB
-2.8 dB
-0.4 dB
-3.2 dB
50MHz 100MHz 150MHz
10-740A-501 INSERTION LOSS: (Dual 8 to 1 Mode)
-50 dB
-60 dB
-70 dB
-80 dB
-90 dB
-100 dB
100MHz 200MHz 300MHz
10-740A-501 ISOLATION: (Dual 8 to 1 Mode)
Insertion Loss Plot for 10-740A-501, 300MHz MUX
1.6
1.4
1.2
1.0
50MHz 100MHz
10-740A-501 VSWR (Dual 8 to 1 Mode)
-30 dB
-50 dB
-60 dB
-70 dB
-80 dB
-90 dB
-40 dB
100MHz 200MHz 300MHz
10-740A-501 CROSSTALK: (Dual 8 to 1 Mode)
Worst Case (Adjacent
Channel)
Best Case
VSWR Plot for 10-740A-501, 300MHz MUX
Isolation Plot for 10-740A-501, 300MHz MUX
Crosstalk Plot for 10-740A-501, 300MHz MUX
Additional Specification (16 to 1 Mode)
Maximum Frequency: 40MHz

Page 1.3
R.F. MULTIPLEXER MODULE 10-740/740A
pickering SECTION 1 - TECHNICAL SPECIFICATION
NOTE:
The 10-740A versions of the product are an updated version of the
10-740 although most of the detail is still relevent.
RF Multiplexer Module – 10-740A
pickeringtest.com
Ordering Information
© Copyright (2019) 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.
Product Order Codes
Dual 8 to 1 RF MUX, BNC, 50Ω 10-740A-501
Product Customization
Pickering System 10 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.
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.
Mating Connectors & Cabling
An example of cabling available for the 10-740A is:
BNC to BNC Lead, 1 metre, 50Ω 10-980-510
For other RF connection accessories for the 10-740A module
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.

Page 1.4 R.F. MULTIPLEXER MODULE 10-740/740A
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SECTION 1 - TECHNICAL SPECIFICATION
Electrical & Mechanical Specications
Voltage Supplies
Logic Supply 5Vdc ±5%.
Relay Supply 12Vdc ±10%
Approx Weight (g) 800
Dimensions (mm)
Front Panel Width 106.6
Height 128.5
Overall Length † 189
Power /Current Consumption
Maximum 5V 250mA
12V 250mA
Power
Minimum 5V 120mA
12V 0mA
Power
† Approx dimensions. Standard 160mm 3U Eurocard (as specied in DIN 41494.)
DUAL 8 TO 1 MULTIPLEXER MODE
This is the standard conguration offering the user most exibility, the module contains two separate 8 to 1
multiplexers, which may be operated independently of one another. These units offer the user a very exible building
block to construct large R.F. switching systems, see Section 3 for further information.
Model 10-740-511/711 multiplexers offer termination for all non-selected inputs, this function may be disabled using
the conguration switches.
1
2
3
8
Com 1
Bank 1 Bank 2
1
2
3
8
Com 1
50 Ω
50
Ω
50 Ω
50 Ω
50
Ω
50
Ω
50 Ω
50 Ω

Page 1.5
R.F. MULTIPLEXER MODULE 10-740/740A
pickering SECTION 1 - TECHNICAL SPECIFICATION
1.3 SINGLE 16 TO 1 MULTIPLEXER MODE
This conguration provides a single 16 to 1 multiplexer, it operates in a similar manner to the 8 to 1 version. However
R.F. performance is signicantly reduced, please refer to the table below. If your application requires maximum
performance it would be advisable to use 8 to 1 multiplexers constructed in a tree network (see Section 3.1 for
further details).
Model 10-740-511/711 multiplexers offer termination for all non-selected inputs, this function may be disabled using
conguration switches.
Frequency 10-740
Insertion Loss <100MHz <2.0dB
VSWR <100MHz <2.0:1
Isolation <100MHz >65dB
Crosstalk <100MHz >50dB
Detailed R.F. Specication (Single 16 to 1 Multiplexer Mode)
1
50
2
3
8
Com 1
Bank 1
Ω
Bank 2
1
2
3
8
Com 1
50 Ω
50 Ω
50 Ω
50
Ω
50 Ω
50 Ω
50 Ω
Single 16 to 1 Multiplexer Mode
Connection to the common side of the multiplexer is via either Com 1 or Com 2

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SECTION 1 - TECHNICAL SPECIFICATION
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Page 2.1
R.F. MULTIPLEXER MODULE 10-740/740A
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SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
A functional block diagram is provided in Figure 2.1. The Module is powered by a 5V logic and a 12V relay supply via
backplane connector J1. The module comprises a Driver PCB feeding the Relay PCB with serial data via its control
logic IC’s. The interface to the user test equipment is via the front panel mounted connectors.
The Relay PCB is populated with R.F. electro-mechanical relays arranged as a Dual 8 Channel 1 Pole Mux, or a 16
Channel 1 Pole Mux at reduced performance. LED’s on the front panel indicate when a particular channel is active.
Relay switching is determined by operator programming.
Modules can be coupled together to provide an even larger multiplexer as required.
Figure 2.1 - Functional Block Diagram
FRONT PANEL CONNECTORS
RELAY
COILS
RELAY
CONTACTS
TO FRONT
PANEL
CONNECTOR J1
Bank 1 and Bank 2
Depending on Application
LEDs
INDICATING
AN ACTIVE
CHANNEL
CONNECTOR J1
DRIVER
CARD
Relay PCB

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SECTION 2 - TECHNICAL DESCRIPTION
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Page 3.1
R.F. MULTIPLEXER MODULE 10-740/740A
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Page 3.1
GENERAL PURPOSE REED RELAY MODULE 10-110/115/120/125
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Power
Supply
(Posn 1)
Interface
Module
(Posn 2)
Other modules
(Not position dependent)
Figure 3.1 - Model 10-930A-002 Rear Access System10 Chassis
with Various Modules Fitted
kg
PRE-OPERATION 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 at and solid construction to
withstand and support the combined weight of the module(s) and chassis.
SECTION 3 - INSTALLATION
!
Refer to the Warnings and Cautions at the front of this manual
Modular products require installation in a suitable System 10/20 chassis.
The module is designed for indoor use only.
!
HARDWARE INSTALLATION
ELECTRICAL CONNECTION (CHASSIS)
1. The chassis must be electrically installed in accordance with local regional electrical codes by a qualied
engineer.
2. Ensure the power supply lead provides the necessary integrity of chassis ground.
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.

Page 3.2 R.F. MULTIPLEXER MODULE 10-740/740A
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SECTION 3 - INSTALLATION
Page 3.2 GENERAL PURPOSE REED RELAY MODULE 10-110/115/120/125
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SECTION 3 - INSTALLATION
!
MODULE INSTALLATION
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. If the module has address switches ensure they are set to the appropriate position. (See Section 4).
Note individual modules are not sent out with a system drawing detailing their address.
3. Choose an appropriate slot in the rack and remove the blanking plate (if tted).
(See the Pickering 10-910M IEEE-488 GPIB System 10/20 Ancillaries manual for further details).
(When tted, additional modules will be automatically recognised by the interface card. See Figure 3.1).
4. If necessary t the module guide rails as supplied with the module to both the top and bottom of the chassis
in that slot position. One guide rail slot should be to the left of the connector as shown in Figure 3.2.
5. Align the module with the backplane and screw holes at the front of the chassis.
Hold the handle whilst slowly sliding the module into the card guides until the module seats rmly into the
backplane. See Figure 3.3. The front panel of the module should be ush with the front or rear panel of the
chassis.
6. Screw the front panel of the module to the chassis front panel mounting rails.
7. Ensure all necessary modules including the power supply are tted to the rack and other slots blanked off
before powering up.
To achieve the correct initialisation of the sytem, ensure any slave chassis are powered up before the master
chassis.
Figure 3.2 - Module Guide Rail Position

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R.F. MULTIPLEXER MODULE 10-740/740A
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Page 3.3
GENERAL PURPOSE REED RELAY MODULE 10-110/115/120/125
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Figure 3.3 - Card Insertion in a Model 10-930A-001 Front Access Chassis
SOFTWARE INSTALLATION
Refer to the Pickering manual 10-921M.
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 driver software for the various programming environments encountered.

Page 3.4 R.F. MULTIPLEXER MODULE 10-740/740A
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SECTION 3 - INSTALLATION
Reconguring the Driver Card to Your Application
The 10-740 module will leave the factory precongured, so take great care if you wish to change any of the settings.
If in doubt contact Pickering for further details.
Universal Driver Card: Conguration Links
There are four choices of relay settling time, the default of 1ms is normally used.
† The “Settled” line is triggered after this delay
The Break-before-Make time delay is equal to half the settling time
LK4 LK5 RelaySettling Time †
0 0 4.0ms
0 1 1.0ms (Default setting)
1 0 0.5ms
1 1 0.0ms
LK6 LK7 LK8 LK9 Conguration († Default)
0 0 0 0 Dual 8 to 1 Multiplexer (no 50Ω Termination)
0 0 0 1 Dual 8 to 1 Multiplexer with 50Ω Termination †
0 1 0 0 Single 16 to 1 Multiplexer (no 50Ω Termination)
0 1 0 1 Single 16 to 1 Multiplexer with 50Ω Termination
Figure 3.4 - Driver Card Links
Power Supply value is selected using the illustrated link. Default is 12Vdc on link 2.
Other values are 5V (relay) on link 3, and 5V (logic) on link 1.
LK 4
LK 5
LK 6
LK 7
LK 8
LK 9
O
N
1234
FAILURE TO SET LINKS CORRECTLY
WILL CAUSE FAULTY OPERATION
– If in doubt, please contact Pickering Interfaces for
advice, or you may return your module for
reconfiguration and service.
Note: If driver card configuration links are invalid then the
multiplexer will be reported as having a size of 0, the
DIAGNOSTIC? command will reveal “Invalid link settings”
123
POWER