Pickering SYSTEM 10 User Manual
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Pickering SYSTEM 10 User Manual

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

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  • Page 1 User Manual SYSTEM 10/20 GPIB RF Multiplexer Module (Model Nos. 10-740/740A) *Please contact Pickering for alternative PXI/LXI/USB solutions Issue 5.1 July 2019 pickeringtest.com pickering R.F. MULTIPLEXER MODULE 10-740/740A Page (1)
  • Page 2 © 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.
  • Page 3 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.

  • Page 4: Product Safety

    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.

  • Page 5: Table Of Contents

    CONTENTS Copyright Statement ..............II Technical Support and Warranty ..........III Product Safety ................IV Contents (this page) ..............V Warnings and Cautions ..............VII Section 1 Technical Specification ...............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...
  • Page 6 THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page (VI)

  • Page 7: Warnings And Cautions

    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.
  • Page 8 THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page (VIII)

  • Page 9: Technical Specification

    The multiplexer has a characteristic impedance of 50Ω. The 10-740A is also suitable for low frequency applications *Please contact Pickering for alternative requiring BNC coaxial switching. It may be operated as a PXI/LXI/USB solutions 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).
  • Page 10 SECTION 1 - TECHNICAL SPECIFICATION Specifications pickering RF Multiplexer Module – 10-740A Switching Specification 10-740A-501 INSERTION LOSS: (Dual 8 to 1 Mode) 0 dB Characteristic Impedance: 50Ω -0.4 dB Maximum Frequency: 150MHz -0.8 dB Rise Time: -1.2 dB Insertion Loss (<20GHz): <3dB...
  • Page 11 BNC to BNC Lead, 1 metre, 50Ω 10-980-510 Product Customization For other RF connection accessories for the 10-740A module Pickering System 10 modules are designed and manufactured please refer to the 90-011D RF Cable Assemblies data sheet on our own flexible manufacturing lines, giving complete product...
  • Page 12 SECTION 1 - TECHNICAL SPECIFICATION pickering Electrical & Mechanical Specifications Approx Weight (g) Dimensions (mm) Front Panel Width 106.6 Height 128.5 Overall Length † Power /Current Consumption Maximum 250mA 250mA Power Minimum 120mA Power † Approx dimensions. Standard 160mm 3U Eurocard (as specified in DIN 41494.) Voltage Supplies Logic Supply 5Vdc ±5%.
  • Page 13 SECTION 1 - TECHNICAL SPECIFICATION pickering 1.3 SINGLE 16 TO 1 MULTIPLEXER MODE This configuration provides a single 16 to 1 multiplexer, it operates in a similar manner to the 8 to 1 version. However R.F. performance is significantly 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...
  • Page 14 SECTION 1 - TECHNICAL SPECIFICATION pickering THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page 1.6...

  • Page 15: Technical Description

    SECTION 2 - TECHNICAL DESCRIPTION pickering 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.
  • Page 16 SECTION 2 - TECHNICAL DESCRIPTION pickering THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page 2.2...

  • Page 17: Installation

    The module is designed for indoor use only. 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.
  • Page 18 (See the Pickering 10-910M IEEE-488 GPIB System 10/20 Ancillaries manual for further details). (When fitted, additional modules will be automatically recognised by the interface card. See Figure 3.1). 4. If necessary fit the module guide rails as supplied with the module to both the top and bottom of the chassis in that slot position.

  • Page 19: Software Installation

    Figure 3.3 - Card Insertion in a Model 10-930A-001 Front Access Chassis SOFTWARE INSTALLATION Refer to the Pickering manual 10-921M. pickeringtest.com For the latest version of the driver please refer to our web site where links to our Software Download page will provide the driver software for the various programming environments encountered.

  • Page 20: Reconfiguring The Driver Card To Your Application

    Other values are 5V (relay) on link 3, and 5V (logic) on link 1. 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.
  • Page 21 Using the 10-210/220 breadboard module. Here the user has access to the analogue bus and settled lines on the System 10 backplane. This format is useful if some sort of signal preconditioning is to be done (e.g. amplification).

  • Page 22: Interconnecting Rf Switching Modules

    SECTION 3 - INSTALLATION pickering INTERCONNECTING R.F. SWITCHING MODULES 1. Large Multiplexers Large multiplexers would normally be constructed using multiple dual 8 to 1 units, built into a tree switching network. All module interconnections are made using direct BNC to BNC cabling (no T-junctions) to minimise performance degradation (particularly VSWR.
  • Page 23 SECTION 3 - INSTALLATION pickering 2. 8x8 Matrix (Single Channel) This provides an 8 x 8 matrix with a single channel switch (Figure 3.6), so that only one crosspoint at a time may be selected. (This is arranged in a back-to-back multiplexer format). If you require more than one crosspoint to be operated at a time then you will require a “multi-channel”...
  • Page 24 SECTION 3 - INSTALLATION pickering 3. 32 x 32 Matrix (Single Channel) A single channel 32 x 32 matrix is illustrated in Figure 3.7. 10-102 MUX 10-102 MUX 10-102 MUX 10-102 MUX 10-102 MUX Figure 3.7 - 32 x 32 Matrix (1 Channel) (Using 5 x 10-740 Modules Configured in Dual 8 to 1 Multiplexer Mode) R.F.
  • Page 25 Matrices requiring more than one channel but not the maximum number (e.g. an 8x8 matrix with 2 channel capability) may be constructed using a mix of the single channel and full matrix techniques outlined here and above. For further help please contact Pickering. 10-740 MUX...
  • Page 26 SECTION 3 - INSTALLATION pickering THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page 3.10...

  • Page 27: Programming The Module

    SECTION 4 - PROGRAMMING GUIDE pickering SECTION 4 - PROGRAMMING GUIDE PROGRAMMING THE MODULE Selecting the Module Primary Address Choose a primary device address (from 0 - 30) using the address select switch SW1 on the driver card. Each module must have a different address to the existing modules in the rack or system, however all cascaded multiplexers must have the same primary address.
  • Page 28 If your application does not require maximised RF performance then configure all modules in 16 to 1 mode, as above. If a large RF multiplexer system is to be constructed then the higher performance given in Pickering’s System 20 range of RF/Microwave switching modules may be worth considering.
  • Page 29 SECTION 4 - PROGRAMMING GUIDE pickering General Programming Commands ARESET a Open all channels/crosspoints on device a DELAY t Force a minimum delay of t milliseconds between two instructions RESET Open all switches on all modules VIEW? a View status of device a...
  • Page 30 SECTION 4 - PROGRAMMING GUIDE pickering THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page 4.4...
  • Page 31 SECTION 5 - CONNECTOR INFORMATION pickering SECTION 5 - CONNECTOR INFORMATION Connections to the 10-740 modules are made via BNC or SMB plugs. A Pin out diagram is shown below. pickering Front Panel Connectors - Bank 1 Connector Signal Connector...
  • Page 32 SECTION 5 - CONNECTOR INFORMATION pickering THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page 5.2...

  • Page 33: 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, however for the GPIB/RS-232 Interface to work correctly there must be at least one switching module present in the rack.
  • Page 34 SECTION 6 - TROUBLE SHOOTING pickering THIS PAGE INTENTIONALLY BLANK R.F. MULTIPLEXER MODULE 10-740/740A Page 6.2...

  • Page 35: Maintenance Information

    • Wipe the product & chassis surfaces with a clean dry anti-static cloth only. SOFTWARE UPDATE For System 10/20 modules operating in a System 10/20 chassis, no software updates are required. For the pickeringtest.com latest version of the driver please refer to our web site...
  • Page 36 SECTION 7 - MAINTENANCE INFORMATION pickering RELAY LOOK-UP TABLES Table 7.1 - Relay Look-up Table (All Types) (Intermediate relays not detailed) Bank 1 Signal Path (with relay energised) Front 10-740-501 10-740-701 10-740A-501 10-740A-501-C Relay Panel number Dual 8 channel Dual 8 channel...
  • Page 37 SECTION 7 - MAINTENANCE INFORMATION pickering FRONT PANEL CONNECTORS - BANK 1 RL11 RL10 RL23 RL24 RL25 RL26 Com1 RL17 Com2 RL18 RL16 RL27 RL29 RL30 RL28 RL19 RL20 RL14 RL21 RL22 RL12 RL13 RL15 FRONT PANEL CONNECTORS- BANK 2 Figure 7.1 - Relay Architecture (Dual 8 Channel, 1 Pole)

  • Page 38: Pcb And Component Layout

    SECTION 7 - MAINTENANCE INFORMATION pickering PCB AND COMPONENT LAYOUT RL10 RL11 RL14 RL12 RL13 RL15 RL16 RL18 RL21 RL20 Figure 7.2 - Relay Board A/PC/116 (All versions) R.F. MULTIPLEXER MODULE 10-740/740A Page 7.4...
  • Page 39 SECTION 7 - MAINTENANCE INFORMATION pickering Figure 7.3 - 10-740-501/701 Figure 7.4 - 10-740-501/701 R.F. MULTIPLEXER MODULE 10-740/740A Page 7.5...
  • Page 40 SECTION 7 - MAINTENANCE INFORMATION pickering BACKPLANE CONNECTOR J1 Figure 7.5 - Driver PCB Layout (A/PC/069) Note: Some components may not be fitted depending on the module. R.F. MULTIPLEXER MODULE 10-740/740A Page 7.6...

This manual is also suitable for:

System 2010-74010-740a

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