HP E1472A User Manual

HP E1472A User Manual

Six 1x4, 50- and 75-ohm rf multiplexer and expander
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Summary of Contents for HP E1472A

  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2: Table Of Contents

    Selecting the Relay Drive Level ......22 Connecting User Inputs To E1472A/73A ......23 Cabling Guidelines .
  • Page 3 Example: Using the Register and Pin-out Maps ....63 Chapter C: RF Multiplexer Error Messages Contents - 2 HP E1472A/73A/74A/75A User’s Manual...
  • Page 4: Warranty

    For warranty service or repair, this product must be returned to a service facility designated by Hewlett-Packard (HP). Buyer shall pre- pay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to HP from another country.
  • Page 5: Warnings

    DO NOT substitute parts or modify equipment: Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the product. Return the product to a Hewlett-Packard Sales and Service Office for service and repair to ensure that safety features are maintained. HP E1472A/73A/74A/75A User’s Manual...
  • Page 6: Declaration Of Conformity

    Supplementary Information: The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC and carries the "CE" marking accordingly. Safety qualification performed May, 1989. Tested in a typical HP B-size VXI configuration. September 5, 1996 Jim White, QA Manager European contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH, Department HQ-TRE, Herrenberger Straße 130, D-71034 Böblingen, Germany (FAX +49-7031-143143).
  • Page 7 Notes HP E1472A/73A/74A/75A User’s Manual...
  • Page 8: Manual Overview

    50 Ω RF Multiplexer, E1473A 50 Ω RF Multiplexer Expander, E1474A 75 Ω RF Multiplexer, and E1475A 75 Ω RF Multiplexer Expander modules. Except where noted, the term “ RF Multiplexer” refers to the HP E1472A 50 Ω RF Multiplexer and E1474A 75 Ω RF Multiplexer Modules. The term “...
  • Page 9 Notes HP E1472A/73A/74A/75A User’s Manual...
  • Page 10: Chapter 1: Getting Started

    You may connect either HP E1475A 75 Ohm Expander Relay Modules or the HP E1473A 50 Ohm Expander Relay Modules to the HP E1472A or HP E1474A Multiplexer module. The drivers on both modules can support either of the expander relay modules.
  • Page 11 RF MUX Note: During Power off, Power Up, and Reset, Channel 0 is connected to COM on Each Bank. Figure 1-1. Multiplexer/Expander Switching Diagram 10 Getting Started Chapter 1...
  • Page 12: Typical Configuration

    For a switchbox instrument, all RF Multiplexer channels within the instrument can be addressed using a single interface address. Instrument HP plug-in modules installed in an HP mainframe or used with an HP command module are treated as independent instruments each having a unique secondary Definition HP-IB address.
  • Page 13: Specifying Scpi Commands

    The logical addresses noted in Figure 1-2 applies to RF Multiplexers installed in an HP 75000 Series C Mainframe with an HP Command Module. See your specific “ HP Command Module Manual” for more information on switchboxes and logical addressing.
  • Page 14 MULTIPLE MODULE SWITCH BOX CARD NUMBERS Figure 1-2. Card Numbers for Multiple-Module Switchboxes MODULE NUMBERS Figure 1-3. Module Numbers Chapter 1 Getting Started 13...
  • Page 15: Module Number

    Module Number The module number identifies the module (RF Multiplexer, Expander #1, or Expander #2) within the card. The number depends on the desired module (RF Multiplexer, Expander #1, or Expander #2). Figure 1-3 illustrates the module numbers of a typical card. •...
  • Page 16: Initial Operation

    Hewlett-Packard Interface Bus (HP-IB). The HP-IB interface select code is 7, the HP-IB primary address is 09, and the HP-IB secondary address is 15. Refer to the your specific “ HP Command Module User’s Guide” for addressing information. Example: Reset the switchbox and connect RF Multiplexer channel 02 to COM 00.
  • Page 17 Notes 16 Getting Started Chapter 1...
  • Page 18: Warnings And Cautions

    • Selecting the Relay Drive Level ......Page 22 • Connecting User Inputs To E1472A/73A ....Page 23 •...
  • Page 19: Setting The Address Switch

    Valid address values are from 0 to Address Switch 255. If the RF Multiplexer is used with an HP Command Module in a C Size Mainframe, refer to the “ HP Command Module User’s Guide” for addressing information.
  • Page 20: Selecting The Interrupt Priority

    Interrupt Priority Command Module via the VXIbus backplane interrupt lines. For most applications where the RF Multiplexer module is installed in an HP 75000 Series C mainframe, the interrupt priority jumper does not have to be moved. This is because the VXIbus interrupt lines have the same priority and interrupt priority is established by installing modules in slots numerically closest to the Command Module.
  • Page 21: Expanding The Rf Multiplexer

    RMD4 cable to HP Expander (module 02) Bank 0-2 connector. Note RMD1 cable is connected to HP E1472A/74A (module 00) Bank 3-5 connector, and RMD0 cable is connected to HP E1472/74A (module 00) Bank 0-2 connector at the factory. These connections are not accessible with the shield in place and should not be moved.
  • Page 22 Module 00 E1472A or E1474A Module 01 E1473A or E1475A Module 02 E1473A or E1475A Figure 2-3. Expander Module Connection Chapter 2 Configuring the RF Multiplexer 21...
  • Page 23: Selecting The Relay Drive Level

    RF Multiplexer module and the Expander module relays. Drive Level Note DO NOT CHANGE the relay drive level if using the HP E1472A, E1473A, E1474A, OR E1475A modules. If external relays of +5 Vdc or +24 Vdc are used with the RF Multiplexer module, the drive level must be changed as follows: Position the RF Multiplexer on a flat surface.
  • Page 24: Connecting User Inputs To E1472A/73A

    Connecting User User inputs to the E1472A RF Multiplexer and E1473A Expander modules are via user-supplied female 50 Ohm SMB connectors to the male 50 Ohm SMB Inputs To connectors on the modules. Figure 2-5 shows the RF Multiplexer 50 Ohm SMB E1472A/73A connectors and associated channel numbers.
  • Page 25: Connecting User Inputs To E1474A/75A

    Connecting User User inputs to the RF Multiplexer and Expander modules are via user-supplied female 75 Ohm SMB connectors to the male 75 Ohm SMB connectors on the Inputs To modules. Figure 2-6 shows the RF Multiplexer 75 Ohm SMB connectors and E1474A/75A associated channel numbers.
  • Page 26: Example 1: Connection To A Network Analyzer

    Example 1: Figure 2-7 shows how to connect the HP E1474A/E1475A RF multiplexer to an HP 8753 Network Analyzer with an HP 85406B 75 Ohm "S" Parameter test set. Connection to a Similar connections can be used for other devices. The Type N plug is available...
  • Page 27: Example 2: Connection To A Network Analyzer

    Example 2: Figure 2-8 shows how to connect the HP E1474A/E1475A RF multiplexer to an HP 8753 Network Analyzer with an HP 85406A 50 Ohm "S" Parameter test set. Connection to a Similar connections can be used for other devices.
  • Page 28: Cables And Connectors

    Hewlett-Packard. Some 75 Ohm connectors are also available from E.F. Connectors Johnson Company. Table 2-1. Right-Angle SMB Female (Plug) to Right-Angle SMB Female (Plug) Length 50Ω HP Part Number 75Ω HP Part Number 55mm (2") 8120-5627 8120-5589 75mm (3") 8120-5628 8120-5590 125mm (5")
  • Page 29 Table 2-5. Right-Angle SMB Female (plug) to Bulkhead-mount BNC Female (jack) Length 50Ω HP Part Number 75Ω HP Part Number 125mm (5") 8120-5613 8120-5618 175mm (7") 8120-5614 8120-5619 325mm (13") 8120-5615 8120-5620 425mm (17") 8120-5616 8120-5621 925mm (36") 8120-5617 8120-5622 Table 2-6.
  • Page 30 Figure 2-9. Connector Drawings Chapter 2 Configuring the RF Multiplexer 29...
  • Page 31 Notes 30 Configuring the RF Multiplexer Chapter 2...
  • Page 32: Chapter 3: Using The Rf Multiplexer

    Using the RF Multiplexer Using This Chapter This chapter uses typical examples to show how to use the RF Multiplexer and Expander modules. This chapter contains the following sections: • RF Multiplexer Commands ......Page 31 •...
  • Page 33: Switching Channels

    Expander modules) to illustrate programming differences. It is important that the user understand that all the examples shown could have been performed using only one HP E1472A or E1474A RF Multiplexer module. Example: Standard Use standard switching to switch channels n0-n3 to COM n0 (where n = Switching bank number 0 to 5).
  • Page 34: Example: Tree Switching

    Figure 3-11 Example: RF Multiplexer Standard Switching Example: Tree Use tree switching to provide signal routing while maintaining characteristic impedance. With tree switching, signal delay time is more than doubled since the Switching signal must pass through two or more channel banks plus extra cabling. Keep cables as short as possible, especially between channel banks, to minimize delay.
  • Page 35: Example: Matrix-Type Switching

    Example: Matrix-Type Use matrix-type switching to provide connection of up to four devices under test (DUT) to up to four test instruments. With this configuration, only one channel Switching in bank 0 (one “ row” ) can be connected to one channel in bank 1 (one “...
  • Page 36: Checking For Errors

    For the example, use: • an HP-IB select code of 7, primary address of 09, and secondary address of 15 for the RF Multiplexer • an HP Series 200/300 Computer with HP BASIC...
  • Page 37 320 ENTER 70915; Code, Message$ 330 PRINT Code,Message$ 340 UNTIL Code=0 350 OUTPUT 70915;"*CLS" 360 STOP 370 SUBEND Comments The “ HP Command Module User’s Guide” contains detailed information on the Status and Standard Event Status registers. 36 Using the RF Multiplexer Chapter 3...
  • Page 38: Synchronizing The Rf Multiplexer

    For the example, use: • an HP-IB select code of 7, primary address of 09, and secondary address of 06 for the Counter • an HP-IB select code of 7, primary address of 09, and secondary address of 15 for the RF Multiplexer •...
  • Page 39 Notes 38 Using the RF Multiplexer Chapter 3...
  • Page 40: Command Types

    IEEE 488.2 Common (*) commands applicable to the RF Multiplexer. See the “ HP Command Module User’s Guide” for additional information on SCPI and common commands. This chapter contains the following sections: • Command Types ........Page 39 •...
  • Page 41 Command Separator A colon (:) always separates one command from the next lower level command as shown below: ROUTe:CLOSe? Colons separate the root command from the second level (ROUTe:CLOSe?). If a third level existed, the second level is also separated from the third level by a colon.
  • Page 42 Linking Commands Linking IEEE 488.2 Common Commands with SCPI Commands. Use a semicolon between the commands. For example: *RST;*RCL 1 CLOS (@101);*SAV 1 Linking Multiple SCPI Commands. Use both a semicolon and a colon between the commands. For example: CLOS (@101);:CLOS? (@101) SCPI also allows several commands within the same subsystem to be linked with a semicolon.
  • Page 43: Scpi Command Reference

    [ROUTe:]CLOSe [ROUTe:]CLOSe SCPI Command This section describes the Standard Commands for Programmable Instruments (SCPI) commands for the RF Multiplexer. Commands are listed alphabetically by Reference subsystem and also within each subsystem. Command guides are printed in the top margin of each page. The left guide indicates the first command listed on that page. The right guide indicates the last command listed on that page.
  • Page 44 [ROUTe:]CLOSe? [ROUTe:]CLOSe? • Closing Channels: To close a single channel, use [ROUTe:]CLOSe Comments (@ccmmnn); for multiple channels use [ROUTe:]CLOSe (@ccmmnn,ccmmnn,...) or any combination. Closure order for multiple channels with a single command is not guaranteed. • Channel Range: The RF Multiplexer will accept and execute channel ranges (ccmmnn:ccmmnn) without generating an error, but the result is to close the last channel in each bank within the range specified.
  • Page 45 [ROUTe:]OPEN? [ROUTe:]OPEN? OPEN? [ROUTe:]OPEN?<channel_list>returns the current state of the channel(s) queried. channel_list has the form (@ccmmnn) (see [ROUTe:]CLOSe for definition). The command returns 1 if channel(s) are open or returns 0 if channel(s) are closed. • Query is Software Readback: The ROUTe:OPEN? command returns the Comments current software state of the channels specified.
  • Page 46 Comments <number>command returns (for both modules): HEWLETT-PACKARD,E1472A,0,A.01.00 or HEWLETT-PACKARD,E1474A,0,A.01.00 where the 0 after HP E1472A or HP E1474A is the module serial number (always 0) and A.01.00 is an example of the module revision code number. Example Reading the Model Number of a Card #1 Module...
  • Page 47 <number>command returns: E1472A,E1473A,E1473A or E1474A,E1475A,E1475A where the E1472A and E1474A are the RF Multiplexer modules, and the E1473A,E1473A or E1475A,E1475 indicates that two expander modules are connected. A "0" in place of the “ E1473” or “ E1475” indicates that the Expander module(s) are not installed.
  • Page 48 SYSTem:ERRor? SYSTem:ERRor? :ERRor? SYSTem:ERRor? returns the error numbers and corresponding error messages in the error queue of a switchbox. See Appendix C for a listing of switchbox error numbers and messages. • Error Numbers/Messages in the Error Queue: Each error generated by a Comments switchbox stores an error number and corresponding error message in the error queue.
  • Page 49: Common Command Reference

    RF Multiplexer module. The operation of some of these commands Command is described in Chapter 3 of this manual. For more information on Common Reference Commands, refer to your specific HP Command Module User’s Guide or the ANSI/IEEE Standard 488.2-1987. Command Title...
  • Page 50 SCPI Commands Quick Reference Command Subsystem Command/Parameter Description [ROUTe:] CLOSe <channel_list> Close Channel(s). CLOSe? <channel_list> Query Channel(s) closed. OPEN? <channel_list> Query channel(s) opened. SYSTem :ERRor? Returns error number/message in a switchbox Error Queue. :CDEScription? <number> Returns description of module in a switchbox. :CTYPe? <number>...
  • Page 51 SYSTem:ERRor? SYSTem:ERRor? 50 Command Reference Chapter 4...
  • Page 52: 50-Ohm Rf Multiplexer Specifications

    Specifications 50-Ohm RF Multiplexer Specifications INPUT CHARACTERISTICS Signal Delay: <3nsec Maximum Voltage: 42 V Peak (any center or chassis to any other center or chassis) DC PERFORMANCE Maximum Current per channel or common: Thermal offset: 1A DC or AC RMS <6 µV Maximum Power per channel or common: Typical closed channel Resistance:...
  • Page 53: 75-Ohm Rf Multiplexer Specifications

    75-Ohm RF Multiplexer Specifications INPUT CHARACTERISTICS DC PERFORMANCE Maximum Voltage: Thermal offset: <6 µV 42 V Peak (any center or chassis to any other center or chassis) Typical closed channel Resistance: Maximum Current per channel or common: <1Ω 1A DC or AC RMS Insulation resistance (any terminal to any terminal) ≤(40 °C, 65% RH): Maximum Power per channel or common:...
  • Page 54: Relay Life

    Relay Life Relay Life Electromechanical relays are subject to normal wear-out. Relay life depends on several factors. The effects of loading and switching frequency are briefly discussed below: Relay Load. In general, higher power switching reduces relay life. In addition, capacitive/inductive loads and high inrush currents (e.g., turning on a lamp or starting a motor) reduces relay life.
  • Page 55 Notes 54 Relay Life Appendix A...
  • Page 56: Chapter B: Rf Multiplexer Registers

    • The register offset (for the desired register). The following example shows how to address the Status/Control Register of a RF Multiplexer module in a C-Size Mainframe using a HP E1405/E1406 Command Module. Register addresses for HP 75000 Series C plug-in modules are in address space VXI A16.
  • Page 57: Reading The Registers

    E1474A RF Multiplexer module, with or without Expander module(s) connected. The HP E1474A/E1475A use the same Device ID as the HP E1472A/E1473A. However, the relay module will generate a different remote module code to distinguish between the modules (see Remote Module ID Registers in this appendix).
  • Page 58: Remote Module Id Registers

    Remote Module ID Reading these registers determines the number and location of HP E1473A and HP E1475A Expander modules connected to the HP E1472A and HP E1474A RF Registers Multiplexers. The base +06 register returns module 00 status (RF Multiplexer relays connected to the RMD0/1 connector).
  • Page 59: Channel Enable Registers

    To disable the interrupt generated when channels are closed, write a “ 1” to bit 6 of the Status/Control Register (base +04 Note Typically, interrupts are only disabled to “peek-poke” a module. Refer to the operating manual of the Command Module used before disable the interrupt. Channel Enable Writes to the Channel Enable registers (base +10 to 1A...
  • Page 60 Read* Module 00 ID * Returns FFFF when RF Multiplexer relays are not connected. * Returns FF00 when E1472A RF Multiplexer relays are connected. * Returns FF11 when E1474A RF Multiplexer relays are connected. Remote Module ID Register b+08 Write...
  • Page 61 b+10 Write* CH22 CH21 CH20 CH12 CH11 CH10 CH02 CH01 CH00 CH 23 CH23 CH13 CH13 CH03 CH03 Read Always Returns FFFF * Write “ 1” closes channel to COMmon (only one channel per bank can be closed at one time). All other to “ 0”. RF Multiplexer Module 00 Banks 3-5 Channel Enable Registers - RMD1(*) b+12 Write*...
  • Page 62: Selecting Channels Using Your Own Relays

    Selecting Channels Figure B-1 shows the pin-outs for connectors P200 and P400 on the driver portion of the module (see Figure 2-3). Connector P200 has connections for remote relay Using Your Own modules (RMD) 0, 1, and 3; P400 has RMD 2, 4, and 5. Relays Figure B-14.
  • Page 63 Figure B-2 shows a simplified schematic of a remote relay module (RMD1 for example). Notice that P1 connector pins 1, 3, 4, and 5 set the Remote Module Code (RMC). For the 75 Ohm relay modules, the code is FF11 .
  • Page 64: Example: Using The Register And Pin-Out Maps

    Example: Using the As an example of using the register information, assume you want to use the HP E1474 to close a remote 5V relay, K1 (see Figure B-2), connected to the RMD 2 Register and Pin-out connector (Figure 2-3). First, change J400 on the driver board to the +5V position Maps (Figure 2-4).
  • Page 65 Notes 64 RF Multiplexer Registers Appendix B...
  • Page 66: Chapter C: Rf Multiplexer Error Messages

    RF Multiplexer Error Messages Table C-1 lists the error messages associated with the RF Multiplexer module programmed by SCPI. See the appropriate mainframe manual for a complete list of error messages. Table C-1. RF Multiplexer Error Messages Number Title Potential Cause –224 Illegal Parameter Attempting to execute a command with a...
  • Page 67 Notes 66 Error Messages Appendix C...

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