Pickering 10-780A User manual

Page (1)
MICROWAVE SWITCH MODULE 10-780A
pickering
Issue 5.1 June 2019
User Manual
GPIB Microwave Switch Module
(Model No. 10-780A)
pickeringtest.com pickering
SYSTEM 10/20
*Please contact Pickering for alternative
PXI/LXI/USB solutions
*

Page (II) MICROWAVE SWITCH MODULE 10-780A
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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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MICROWAVE SWITCH MODULE 10-780A
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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) MICROWAVE SWITCH MODULE 10-780A
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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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MICROWAVE SWITCH MODULE 10-780A
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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
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................................................7.3
CONTENTS
Please use the hyperlinked text to navigate to the page required

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MICROWAVE SWITCH MODULE 10-780A
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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
MICROWAVE SWITCH MODULE 10-780A
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SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
GPIB Microwave Switch Module 10-780A
ISSUE 5.3 JUL 2019
• 2 or 4 Changeover Relays per Module
• 50Ω with 18GHz Bandwidth + Option for
26.5GHz
• High Performance Microwave Relays
• Front Panel Mounted SMA Connectors With
Indicator LEDs
• Tree Networks May Be Constructed By Inter-
Linking Individual Modules
Switching Diagram for the 10-780A Microwave
Switch Module with 4 Relays
NO
NC
Relay 1
C
Relay 2
C
Relay 3
C
Relay 4
C
NO
NC
NO
NC
NO
NC
Microwave switching modules offer a choice of 2 or 4 changeover
switches (SPDT) per module with bandwidths to 18GHz (usable to
20GHz, optional to 26.5GHz) with 50Ω impedance. Connections
are made via high performance front panel mounted connectors.
As these switches are electromechanical they cover the complete
frequency range from d.c. to GHz. These modules give you
the highest RF & Microwave switching performance available
within a Pickering Switching System. Applications are mainly
in the Microwave region, however there are many uses in the
RF spectrum where extremely low insertion loss and ultra high
isolation are critical.
They may also be used for applications requiring power switching
to 100W.
Programming
The Microwave Switching Module is simple to program either by
single relay or by pattern (4 relays simultaneously)
ARESET a Open all switches on module a
CLOSE a,b Close switch number bon module a
OPEN a,b Open switch number bon module a
RESET Open all switches on all modules
VIEW? a[,b] View status of module a, can be viewed at
any time either as a byte or by switch as a
logical value (1 or 0)
WRITE a,w Send byte wto module a
*Please contact Pickering for alternative
PXI/LXI/USB solutions
*

Page 1.2 MICROWAVE SWITCH MODULE 10-780A
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SECTION 1 - TECHNICAL SPECIFICATION
Microwave Switch Module – 10-780A
pickeringtest.com
Specifications
General Specification (All Versions)
Maximum Voltage:
Max Switch Current:
100Vdc
1A
On Path Resistance:
Off Path Resistance:
Differential Thermal Offset:
<200mΩ
>1010Ω
<20µV
Switching Time: >20ms
Expected Life: >1x106operations
Mechanical Characteristics
All models conform to the 3U height (128mm) Eurocard standard
and are 160mm deep. Panel width is 2.4 Inches.
Connectors
The 10-780A Microwave Switch Module is available with 50Ω front
panel mounted SMA connectors.
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
Microwave Performance Plots for the 10-780A-524
Changeover Relay Module (50Ω)
0dB
-0.1dB
-0.2dB
-0.3dB
10-780A INSERTION LOSS 50 Ohm
-0.4dB
5GHz 10GHz 15GHz 20GHz
10-780A VSWR (RETURN LOSS) 50 Ohm
1.3
1.2
1.1
1.0
1.4
18dB
21dB
26dB
VSWR
Return Loss
5GHz 10GHz15GHz 20GHz
10-780A ISOLATION 50 Ohm
-100 dB
-90 dB
-80 dB
5GHz 10GHz 15GHz 20GHz
-110 dB
-70 dB
Microwave Specification (50Ω SMA Version)
Frequency/GHz:
Loss:
VSWR:
Isolation/dB:
<2
<0.2
<1.2
>80
<6
<0.2
1.25
>70
<12
<0.4
1.4
>60
<18
<0.5
1.5
>60
<26.5
<0.7
1.7
>50
Switching Power
(average):
100W at <3GHz
60W at <12GHz
30W at <18GHz
15W at <26.5GHz
NB. Peak power switching can be well in excess of the above values
but this will affect the switch life.

Page 1.3
MICROWAVE SWITCH MODULE 10-780A
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Microwave Switch Module – 10-780A
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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 - Microwave Switches
2xSPDT, 18GHz,50Ω, SMA
4xSPDT, 18GHz,50Ω, SMA
Replacement 18GHz, 50Ω Relay
10-780A-522
10-780A-524
10-780A-922
2xSPDT, 26.5GHz,50Ω, SMA
4xSPDT, 26.5GHz,50Ω, SMA
Replacement 26.5GHz, 50Ω Relay
10-780A-532
10-780A-534
10-780A-932
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
For connection accessories for the 10-780A 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 MICROWAVE SWITCH MODULE 10-780A
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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) 410
Dimensions (mm)
Front Panel Width 60.9
Height 128.5
Overall Length † 189
Power /Current Consumption
Maximum 5V 600mA
12V 450mA
Minimum 5V
12V 0mA
† Approx dimensions. Standard 160mm 3U Eurocard (as specied in DIN 41494.)
Former Products
Please note that manufacture has now ceased for the product versions listed below. The newer 10-780A versions
simply denote a different relay tted. Should you require any additional information related to them not contained
in this manual please contact the factory.
Product Order Codes
1 x SPDT Microwave Switch, 12.4GHz, 50 Ω , N Type 10-780-511
2 x SPDT Microwave Switch, 12.4GHz, 50 Ω , N Type 10-780-512
2 x SPDT Microwave Switch, 2.5GHz, 75 Ω , 1.6/5.6 10-780-712
4 x SPDT Microwave Switch, 2.5GHz, 75 Ω , 1.6/5.6 10-780-714
2 x SPDT Microwave Switch, 18GHz, 50 Ω , SMA 10-780-522
4 x SPDT Microwave Switch, 18GHz, 50 Ω , SMA 10-780-524
2 x SPDT Microwave Switch, 26.5GHz, 50 Ω , SMA 10-780-532
4 x SPDT Microwave Switch, 26.5GHz, 50 Ω , SMA 10-780-534

Page 2.1
MICROWAVE SWITCH MODULE 10-780A
pickering SECTION 2 - TECHNICAL DESCRIPTION
SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
Figure 2.1 - Functional Block Diagram (10-780A)
FRONT PANEL CONNECTORS
U5
RELAY
DRIVER
CONTROL LOGIC
U1
LOGIC
ARRAY
U4
&
GATE
LIMITING
RESISTOR
NETWORK
CONNECTOR J1
+5V
0V RELAY
COILS
+12V
LIMITING
RESISTOR
NETWORK
U3
D TYPE
FLIP FLOP
U2
D TYPE
FLIP FLOP
RELAY
CONTACTS
8
8
8
8
8
FRONT PANEL
A functional block diagram is provided in Figure 2.1. The module is powered via the chassis connector J1 with a 12V
relay supply and 5V logic. The interface to the user test equipment is via the front panel mounted connectors. The
module comprises a General Purpose PCB driving SPDT Microwave relays with LEDs on the front panel indicating
when the relays are energised via control signals from relay driver U5. The relay driver is fed with serial data via the
control logic, comprising U1, U2, U3 and U4. Relay switching is determined by operator programming.

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SECTION 2 - TECHNICAL DESCRIPTION
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Page 3.1
MICROWAVE SWITCH MODULE 10-780A
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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 MICROWAVE SWITCH MODULE 10-780A
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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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MICROWAVE SWITCH MODULE 10-780A
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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.

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SECTION 3 - INSTALLATION
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Page 4.1
MICROWAVE SWITCH MODULE 10-780A
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SECTION 4 - PROGRAMMING GUIDE
Selecting the Module Address
Choose device address (from 0 - 30) using the address select switch on the driver card.
A different address to the existing modules in the rack or system must be chosen.
The address selected in Figure 4.1 is 22 (16 + 4 + 2 = 22).
PROGRAMMING THE MODULE
ON
1 2 3 4 5
16 8 4 2 1
Address
Note that not all cards contain an address select switch with the address being set by software for those cards.
Figure 4.1 - Module Address Switches
Figure 4.2 - A USB/GPIB Interface Lead
Programming Using the Intelligent GPIB/RS-232 Interface
The programming computer will need a GPIB card, a USB to GPIB Interface (Figure 4.2) or an Ethernet connection
to talk to the interface and communicate with the system depending on the type of interface tted.
• If a 10-920-001 Interface is tted a GPIB connection will be required.
• A 10-921-001 Interface requires either a GPIB or RS-232 connection.
• A 10-922-001 Interface requires an RS-232 Ethernet connection.
NOTE: Placing a
switch in the “ON”
position sets the
corresponding
address bit to “1”.

Page 4.2 MICROWAVE SWITCH MODULE 10-780A
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SECTION 4 - PROGRAMMING GUIDE
The 10-780 module is simple to program either by single bit or by word (8 bits).
ARESET a Clear all outputs on module a
CLOSE a,b Set bit number b on module a
DELAY t Force a minimum delay of t milliseconds between two instructions
OPEN a,b Clear bit number b on module a
RESET Clear all bits/switches on all modules
VIEW? a[,b] View status of module a, can be viewed at any time either as a word or by bit b as a logical
value (1 or 0)
WRITE a,w Send word w to module a
The module is programmed as an 8 bit output port using either single bit or whole byte (8 bits) programming:
To close relay number 5 on module 11.
CLOSE 11,5
Or to close all relays on module 8.
WRITE 8,255
Now to look at status of module 11.
VIEW? 8 will return “255”
For more details on programming see the manual for the IEEE-488/RS-232 interface module 10-920A/921.