HP E1367A, E1366A User Manual

Contents

HP E1366A/67A RF Multiplexers User’s Manual

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Safet y Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Reader Comment Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1. Getting Started wit h the H P E1366A/E1367A RF Multiplexers . . . . . . . . . . . . . . 11

Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Multiplexer Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Basic Operati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Typical Confi gura tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Programming th e Mul ti pl ex er Modul e . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Specifying SCPI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Initial Opera ti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2. Configuring the HP E1 366A/E1367A RF Mu ltiplexer s . . . . . . . . . . . . . . . . . . . 17

Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Connecting User Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Typical Multiplexer Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Standard Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Tree Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Matrix-Type Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Changing Multipl exer Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3. Using the HP E1366A/E1367A RF Multiplexer Mod ule . . . . . . . . . . . . . . . . . . 25

Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Multiplexer Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Switching Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Example: Standa rd Switchin g . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Examp le: T r e e Switchi n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Examp le: Matrix- Type Switching . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Switching Channels Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Scannin g Cha nne ls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Example: S c anning Using Tr ig Out Port . . . . . . . . . . . . . . . . . . . . . . 29

Scannin g Ch a nne ls Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4. Understanding the HP E1366A/ E1367A RF Multiplexers . . . . . . . . . . . . . . . . . 31

Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Scannin g Cha nne ls Command s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Using S canning Trigger Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Scanning with Ex ternal I nstruments . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Example: S ca nni ng wit h Exter nal Device . . . . . . . . . . . . . . . . . . . . . . 34

HP E1366A/67A R F Multiplexers User’s Manual Contents 1

Example: S c anning Using "Trig Out" and " Event In" Por ts . . . . . . . . . . . . 35

Using the Scan Complet e Bi t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Examp le: S c an Complete Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5. HP E1366A/E1367A RF Multiplexe r s Command Referenc e . . . . . . . . . . . . . . . 37

Using This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Command Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Common Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

SCPI Command F ormat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Linking Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

ABORt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

ARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

:COUNt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

:COUNt? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

DISPlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

:MONitor[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

:MONitor:CARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

INITiate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

:CONTinuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

:CONTinuous? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

[:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

OUTPut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

[:STATe] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

[:STATe] ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

[ROUTe:] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

CLOSe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

CLOSe? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

OPEN? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

SCAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

SCAN:MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

SCAN:MODE? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

STATus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

:OPERati on[:E VENt]? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

:OPERati on:E N ABle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

SYSTem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

:ERRor? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

:CDEScript i on? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

:CTYPe? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

:CPON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

TRIGger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

[:IMMediate] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

:SOURce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

:SOURce? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

IEEE 488.2 Common Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Command Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

2 HP E1366A/67A RF Multip lexers User’s Manual Contents

A. HP E1366A/E1367A RF Multiplexer Spec i fic ations . . . . . . . . . . . . . . . . . . . . 61

Relay Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

End of Life Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Replacement Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

B. HP E1366A/ E1367A Multiplexer Regi sters . . . . . . . . . . . . . . . . . . . . . . . . . 65

Address ing the R eg isters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Reading the Re gisters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

ID/Device Type Regi sters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Status/C ont rol Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Channel Enable Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Writing to the Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Status/C ont rol Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Channel Enable Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

C. HP E1366A/E1367A RF Multiplexer Error M essages . . . . . . . . . . . . . . . . . . . 69

HP E1366A/67A R F Multiplexers User’s Manual Contents 3

Notes

4 HP E1366A/67A RF Multip lexers User’s Manual Contents

Certification

Hewlett-Pac kard Compa ny certif ies that this product m et its published sp ecifi cation s at the time of shipment from the factory. H ewlettPackard further certifies that its calibration measurements are traceable to the United Stat es Nation al Instit ute of Stand ard s and Technology (for m erl y Nat ional Bur ea u of Standar ds ), to the ex tent allo wed by that orga ni zati on’ s cal ib rat ion f ac ili t y, and t o th e calibrat ion facilities of ot her International Sta ndards Organizat i on members.

Warranty

This Hewlet t-Pa ck ar d product is warr ante d agai nst de fect s in mate rials and w orkmansh ip for a period of three years from date of shipment. Duration and conditions of warrant y for this produ ct may be superseded when the product is i nt egrated into (becomes a part of) other HP product s. Du ring the warranty period, Hewlett -Pa ckard Company will, at its option, eith er rep ai r or re pl ace pr oducts which prove to be defective.

For warranty se r vice or repair, this product must be returned to a service faci l ity de si gnated by Hewlett-Packard (HP ). Bu yer shall prepay shipping cha rges to HP and HP shal l pay shipping charges t o re tu rn the product to B uyer. However, Bu yer shall pay all shipping charges, duties, and taxe s for products returned to HP from anot her count r y.

HP warrants that its softwar e and firmwar e designa ted b y HP for use with a product will execute its programmin g instru cti ons wh en properly installe d on that product. HP does not warrant that the operat ion of the product, or software , or firmware will be uninterrupted or er ro r f r ee.

Limitation Of Warrant y

The foreg oin g warra nt y sh al l not apply t o defects resulting from i mproper or inadequate mainte nance by Buyer, Buyer-supplied pr oducts or interfacing, unauthori ze d m odificati on or misus e, operation outside of the environmenta l specificat i ons for the product, or improper site prep arat i on or maint ena nce.

The design and imp le mentation of any circuit on this product is the sole responsibility of th e Buyer. HP does not warrant th e Buyer’s circuitr y or malfunctions of HP products that result from the Bu yer’s circuitry. In addition, HP does not warrant any damage that occurs as a result of the B uyer’s circuit or an y defects th at re sult fr om Buyer-supplied product s.

NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED W ARRANT IES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Exclusive Remedie s

THE REMED IES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES. HP SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.

Notice

The information contained in this document is subject to change without notice. HEWLETT-PACKARD (HP) MAKES NO WARRANTY OF ANY KIND W ITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. HP shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance or use of this material. This document c ontains proprieta ry informati on which is prote ct ed by copyrigh t. A ll rights are rese rved. No part of thi s document may be photocopied, reproduced, or translate d to another lan guage wit h out the prior written consent of Hewlett -Packar d C ompany. HP assumes no responsibility for the use or reliability of its software on equipment that is not furnished by HP.

Restricted Rights Legen d

Use, dupli ca tion or discl osu re by the U. S. Go vernme nt is subje ct to rest rict i ons as set fort h in subparagraph (c)(1) (ii ) of the Rights i n Technical Data and Comp uter Softwa re clause in D F ARS 252.227-701 3.

Hewlett-Packar d Company 3000 Hanover Street Palo Alto, Cal if ornia 943 04 U.S. A.

Rights for non-DOD U.S. Government Departments and Agen ci es are as set f orth in F AR 52.227 -19 (c) (1,2).

HP E1366A & E1367A RF Multiplexer Modules User’s Manu al

Edition 3

HP E1366A & E1367A RF Multiplexe r Modules User’s Manual 5

Documentatio n History

All Editions and Updates of this manual and their creation date are listed below. The first Edition of the manual is Edition 1. The Edition number increment s by 1 whenever the manua l is revised . Updates , which are issued betw een Edi ti ons, c ontain repla ce ment pa ges to correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it wil l contain all of the Update inf ormat ion for the pre viou s Editi on. Each new Ed iti on or Update also incl ude s a revis ed c op y of this documentation history page.

Edition 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S epte mber 1989

Edition 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 1993

Edition 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . December 1995

Safety Symbols

Instruction manual symbol affixed to product. Indicat es that the user must refer to the manual for specific WARNING or CAUTION information to avoid personal injury or damage to the product.

Alternating current (AC).

Direct curren t (DC).

Indicates the field wiring terminal that must be connected to earth ground before operating the equipment—protects against electrical shock in case of fault.

Frame or chassis ground termi nal — t ypi-

cally connects to the equipment’s metal frame.

WARNING

CAUTION

Indicate s ha za rdous voltage s.

Calls at te nt i on t o a pr ocedure, practice, or condition that could cause bodily injury or death.

Calls at te nt i on t o a pr ocedure, practice, or c ondition that could possibly cause damage to equipme nt or perma nen t los s of data.

WARNINGS

The following ge ner al safet y prec aut ions mus t be observed du ring al l phas es of oper ation , ser vice , and repai r of this pr oduct. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and inten ded use of the product. Hewlett-Pac kar d Company assumes no liability for the cust o mer’s fai lure to comply with these requirements.

Ground the equipment: For Safety Cl as s 1 equipmen t (equ ipment ha vin g a protective ea rth ter mi nal) , an unint erru ptib le sa fety earth

ground must be provide d from the ma in s power sour ce to the produ ct input wi rin g termi nals or suppli ed power cable .

DO NOT operate the produc t in an explosive at mospher e or in the presen ce of flammable gases or fume s.

For continued protect ion a gainst fire, repl ace the line fuse (s) only with fuse(s) of the same voltage and curre nt rating and type. DO NOT use repaired fuses or short-circui ted fuse holders.

Keep away from live circuits: Operatin g personnel must not remove equipment covers or shields. Procedures involving the removal of covers or shields are for use by service-trained personn el onl y. Unde r ce rta in c onditi ons , dangerous voltages m ay exist even with the equipment switched off. To avoid dangerous ele ctrical shock , DO NOT perf orm procedures involving cover or shield removal unless you are qualified to do so.

DO NOT operate damaged equipment: Whene ver it i s p ossibl e tha t the sa fe ty protection features buil t int o t hi s product have been impaired, eithe r t hr ough physical da m age, excessive mois t ure , or any other reason, REMOVE POWER and do not use the product until safe operation can be verified by service-trained personnel. If necessary, return the produ ct to a Hewlett -Packar d Sa les and Ser vice Office for service and repair to ensure that safety features are maintaine d.

DO NOT service or adjust alon e: Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.

DO NOT substitute parts or modify equipment: Because of the danger of introducing additional hazards , do not install substitute parts or perform any unauthorized modifica tion to the product. Retur n the product to a Hewlet t-P ackar d Sales and Ser vice O ffice for service and repair to ensure th at sa fe ty features are ma i nt ai ne d.

6 HP E1366A & E1367A RF Multiplex er Modules User’s Man ual

Declaration of Conformity

according to ISO/IEC Guide 22 and EN 45014

Manufacturer’s Name: Hewlett-Pa ckar d C ompany

Loveland Manufacturing Center

Manufact urer’s Addre s s: 815 14th Street S.W.

Loveland, Colorado 80537

declares, that the product:

Product Name: RF Multiplexer

Model Number : HP E1366A/E1367A

Produc t Opt ion s: All

conforms to the following Pr od uct Spe cifi cati ons :

Safety: IEC 1010-1 (1990) Incl . Amend 1 (1992) /E N610 10-1 (1993)

CSA C22.2 #1010.1 (1 992) UL 1244

EMC: CISPR 11:1990/EN55011 (1991 ): Group1, Cl ass A

IEC 801-2:1991/ E N5008 2-1 (1 992) : 4kV CD, 8kV AD IEC 801-3:1984/ E N5008 2-1 (1 992) : 3 V/m IEC 801-4:1988/ E N5008 2-1 (1 992) : 1kV P ower Lin e .5kV Signal Lines

Supplementary Information: The product her ewi th c ompl ies wit h th e requirements of the Low Voltage Dire ctive 73/23/EEC and the EMC Directive 8 9/336/ EEC (inclu si ve 93/68/EEC ) and carr ies the "CE" mark acc ordingly.

Tested in a typical HP B-size m ainfr am e.

December 5, 1995 Jim White, QA Manager

European conta ct: Your loca l He wlett-Pa cka rd Sales a nd Servi ce O ffic e or Hewlett- Packa rd GmbH, Departm ent HQ-TRE, Herr en ber ger Straße 130, D- 71034 Böblingen, Germ any (FAX +49-7031-143143).

HP E1366A & E1367A RF Multiplexe r Modules User’s Manual 7

Notes

8 HP E1366A & E1367A RF Multiplex er Modules User’s Man ual

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HP E1366A & E1367A RF Multiplexer Module User’s Manual

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10 HP E1366A & E1367A RF Multiplexe r Mod ule User’s Manual

Getting Started with the

HP E1366A/E1367A RF Multiplexers

Using This Chapter

This chapter includes an RF multiplexer’s description, addressing guidelines, and an example to check initial op eration. Chap ter contents are:

• Multiplexer Module Description . . . . . . . . . . . . . . . . . . . . . Page 11

• Prog ram min g the Mult iplex er Module. . . . . . . . . . . . . . . . . Page 1 3

• Initial O peration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15

Multiplexer Module Description

The HP E1366A 50Ω RF Multiplexer (2 x 4:1) and the HP E1367A 75Ω RF Multiplexer (2 x 4:1) are VXIbus and VMEbus B-size register-based products which provide bidirectional switching and scanning for user inputs and outputs. The multipl exers can operate in a B-size VXIbus or VMEbus mainframe or (with an adapter) in a C-size VXIbus mainframe.

Chapter 1

For the RF multip le x ers, s witching consists of connecting a channel to its common terminal. Scanning consists of connecting a series of channels (one at a time) to the app ropriate common terminal.

Basic Operation The multiplexers consist of two banks of channels (bank 0 and bank 1) to

form two 4:1 multiplexers. Bank 0 includes channels 00 through 03 and com 00. Bank 1 includes channels 10 through 13 and com 10. S`ee Figure 1-1 for a simpli fied switching diagra m.

Each chann el is switched (c onnec t ed to its common) by closing the appropriate (nonlatch ing) relays. Channels 00 through 03 can be switched to com 00, and channels 10 through 13 can be switched to com 10. Only one channel in ea ch ba nk can be connected to its common at a time.

User inputs a nd outp uts to eac h channel are made through BNC connectors. When open (disconnected from common), each channel is terminated in its characteristic impedance (50Ω for the E1366A, 75Ω for the E1367 A).

A terminati on resistor (5 0Ω for the HP E1366A or 75Ω for the HP E1367A) is mounted on each channel, but can be remo ved as desired. At power- on or reset, all channels are open and terminated in their characteristic impedance, and both commons are open.

Chapter 1 Getting Started with the HP E1366A/E1367A RF Multiplexers 11

Figure 1-1. Multiplexers Switching Diagr am

12 Getting Started with the HP E1366A/E1367A RF Multiplexers Chapter 1

Typi cal

Configuration

The multiplexer relays are configured in a “ tree” structure which provides high isolation and low VSWR (voltage standing wave ratio). Each channel can switch user inputs up to 42 Vdc or 42 Vac peak. User input frequenc ies to the multiplexers can be from dc to 1.3 GHz.

The multiplexers can be configured for several arrangements, such as standard, tree, or matrix. You can use single scanning, multiple scanning, or continuous scanning for any configuration.

For a SCPI (Standard C o mmands for Programm ab le Instruments) environment, one or more multiplexers can be defined as a switchbox instru ment. For a switchbo x instr ument, all multiplexer channels within the instru ment can b e ad dressed using a single interfa ce a ddre ss.

Programming the Multiplexer Module

To program th e RF multip lexers using SCPI, you must select the contr olle r language, interface address, and SCPI commands to be used. Guidelines to select SCPI commands for the RF multiplexers follow. See the appropriate HP B-size or C-size configuration guide for interface addressing and controller language informatio n.

Note This discussion applies to SCPI programming. See Appendix B,

Specifying SCPI

Commands

Multip lexe r C han nel

Address

RF Multiplexers Registers, for information on multiplexer registers.

To address specific channels within an RF multiplexer, you must specify the SCPI command and multiplexer channel address. For the RF multiplexers,

CLOSe <channel_list> to switch (close) channels and use

use

OPEN<chann el_list> to disconnec t channe ls . Use SCAN <channel_ list > to

scan (sequentially close) multiplexer channels.

For the RF multiple xers, the channel addre ss ( chann el_lis t) is in the form:

• (@ccnn) for a single channel

• (@ccnn,ccnn) for multiple channels

• (@ccnn:ccnn) for sequential channels

• (@ccnn:ccnn,ccnn:ccnn) for groups of sequential channels

• or any combination of the above

where "cc" is the multiplexer card number (01-99) and "nn" is the channel numbers (00-03 and 10-13).

Chapter 1 Getting Started with the HP E1366A/E1367A RF Multiplexers 13

Multiplexer Card

Numbers

The multiplexer card number depends on the switchbox configuration (single-module or multiple-module) set for the multiplexers. (Leading zeroes can be ignored for the card number.) For a single-module switchbox, the card nu mber is always 01.

For a multiple-module switchbox, the card numbers are 01, 02,...,n. The switch modu le with the lowest l ogica l a ddr e ss is a lwa ys card n u mber 01. The card number with the next successive logical address is card number 02, and so on. See the HP B-size configuration guide for a definition of logical addresses.

Example: Multi ple-Module Switchbox Card Numbers

Assume the three multiplexers in the following figure form a multiple -mu ltip lex er s witc hbox ins trument with mult iple x er logica l addresses of 120, 121, and 122. Since card nu mber 01 is assign ed to the module with the lowest log ical addr ess , etc., t h e card numbers are as sho wn.

Figure 1-2. Multiple-Multi plexer Switch box Instru men t

Multiplexer Channe l

Numbers

RF multiplexer channel numbers are 00 through 03 and 10 through 13. The channels can be addressed using channel numbers or channel ranges. For a single-module switchbox, channel ranges can span across the two channel banks. For multiple-module switchboxes, channel ranges can span across the channels of all modules.

14 Getting Started with the HP E1366A/E1367A RF Multiplexers Chapter 1

Use commas (,) to form a c hannel list or u se a colon (:) to form a channel range. Only valid channels can be accessed in a channel list or channel range. Also, the channel list or channel range must be from a lower channel number to a higher channel numb er. For example, acc epta ble, but

SCAN (@213:100) generates an error.

SCAN (@100:213) is

Example: RF Multiplexer Channel Lists/Ranges

Channel Lists:

Initia l Oper atio n

CLOS (@100,112) OPEN (@203,210)

Channel Ranges:

OPEN (@100:113) SCAN (@100:213)

!Close channels 00 and 12 on card 01 !Ope n ch anne ls 03 a nd 10 on card 02

!Open all channels on card 01 !Scan all channels on cards 01 and 02

An example program follows which uses Hewlett-Packard BASIC and SCPI language to get you started using the RF multiplexers. The computer used in the example is an HP 9000 Series 200/300 (or equivalent) controller with HP BASIC as the program language. The computer interfaces to the mainframe using the Hewlett-Packard Interface Bus (HP-IB)

This program closes channel 02 of an RF multiplexer at logical address 120 (secondary address = 120/8 = 15) and queries the channel closure state. The result is returned to the controller and display ed (1 = chann el closed, 0 = channel open). See the HP B-size configuration guide for information on addressing.

Example: Close Multiplexer Channel

OUTPUT 70915;"CLOS (@102)" OUTPUT 70915;"CLOS? (@102)" ! Query channel 02 state ENTER 70915;Value

PRINT Valu e END

* HP-IB is Hewlett-Packard ’s implem entat ion of IEEE Std 488. 1-1 984

! Close channel 02

Enter result into Value

Display result

Chapter 1 Getting Started with the HP E1366A/E1367A RF Multiplexers 15

Notes

16 Getting Started with the HP E1366A/E1367A RF Multiplexers Chapter 1

Configuring the HP E1366A/E1367A

Using This Chapter

This chapter shows how to make user connections to the RF multiplexers and how to configure the multiplexer modules. Chapter contents are:

• Warnin gs and Cau tions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17

• Connecting User Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 18

• Typical Multiplexer Configurations . . . . . . . . . . . . . . . . . . . Page 20

• Changing Multiplexer Components. . . . . . . . . . . . . . . . . . . . Page 23

Warnings and Cautions

Warning SHOCK HAZARD. Only qualified, service-trained personnel

who are aware of the hazards involved should install, configure, or remove the RF multiplexers. Remove all power sources from the mainframe and installed modules before installing or removing a module.

Chapter 2

RF Multiplexers

Warning CHANNEL WIRING INSUL ATION. All channels that have a

common connection must be insulated so that the user is protected from electrical shock in the event that two or more channels are connected together. This means wiring for all channels must be insulated as though each channel carries the voltage of the highest voltage channel.

Caution MAXIMUM VOLTAGE/CURRENT. Maximum voltage between

any RF multiplexer center conductor or shield to any other center conductor, shield, or chassis ground is 42 Vdc or 42 Vac peak. Maximum current per channel or common is 1 A dc or 1 A ac RMS. Maximum switching power is 24 W or 24 VA per channel or common. Maximum power per resistive termination is 1 W or 1 VA. Exceedin g any limit may damage the module.

Chapter 2 Configuring the HP E1366A/E1367A RF Multiplexers 17

Caution CENTER CONDUCTOR MAY SHORT TO SHIELD. Each

channel’s center conductor may momentarily short to the shield when the channel is opened or closed. Use only resistive (5 0Ω or 75Ω) or current-limited (<1 A) inputs with less th an 0.1 µF total capa cita nce .

Caution STATIC-SENSITIVE DEVICE. Use anti-static procedures when

removing, configuring, and installi n g a module . The multiplexer modules are susceptible to static discharges. Do not install a multiplexer without its metal shield attached.

Connecting User Inputs

User inputs to the RF multiplexers are made through user-supplied male BNC connectors to the female BNC connectors on the modules. Figure 2-1 shows the multiplexer femal e BNC connectors and associated chan nel numbers.

Figure 2-1. BNC Connector Locati on s

18 Configuring the HP E1366A/E1367A RF Multiplexers Chapter 2

Some guidelines for user input cabling are:

• For best high-frequency performance, user cabling should have at

least two braided sh ields or one br a id and a f oi l wrap.

• Always use shielded coaxial cables with the characteristic

impedance of the multiplexer used ( 5 0Ω or 75Ω). Keep cables as short as possible, especially in high-frequency circuits or pulse circuits where a rise/fall time of <50 nsec is critical.

• Long cables can add delay time which can cause timing problems.

All test equipment, such as counters, spectrum analyzers, and oscilloscopes, m ust be terminated i n the chara cteristic impedance to minimize reflection loss.

• To maintain low dc offset voltages, cables should have copper center

conductors, not copper-clad steel. RG-233/U cable is recommended. Table 2-1 lists H ewl ett-Pa c kard BNCca b les whi ch meet these guidelines.

Table 2-1. Hewlett-Packard BNC Cabl es

Type Length Part Number 50 Ω coaxial 30 cm (12 in)

61 cm (24 in ) 122 cm (48 in)

75 Ω coax i al 30 cm (12 in)

61 cm (24 in )

8120-1838 8120-1839 8120-1840

5062-6452 5063-0061

Chapter 2 Configuring the HP E1366A/E1367A RF Multiplexers 19

Typical Multiplexer Configurations

Typical RF mult iplexer configurations are:

• Standard configuration (2 x 4:1 multiplex er)

• Tree configuration (1 x 12:1 multiplexer)

• Matrix-type configuration (4:1 to 4:1 multiplexer)

Standard

Configuration

Figure 2-2 shows the standard configuration (2 x 4:1) for the RF multiplex ers. With this configuration, you can switch c hannels 00-03 to com 00 and switch channels 10-13 to com 10. One channel per bank can be connected to its common at a ti me.

Figure 2-2. Typi cal Stan d ard Co nfig uratio n

20 Configuring the HP E1366A/E1367A RF Multiplexers Chapter 2

Tree Configuration Figure 2-3 shows a typical tree configuration which uses two RF

multiplexers to provide a 1 x 12:1 multiplexer. This configuration provides isolation of test points while maintainin g charact eristic imp edance. With tree configuration, signal delay time is more than doubled s ince the signal must pass through two channel banks plus extra cabling. Keep cables as short as possible, especially between channel banks, to minimize delay.

Figure 2-3. Typical Tree Conf iguratio n

Chapter 2 Configuring the HP E1366A/E1367A RF Multiplexers 21

Matrix-Type

Configuration

Figure 2-4 shows the two banks of an RF multiplexer connected to form a matrix-type arrangement. This con fi gurat ion pr o vides a way to co nnect multiple devices under test (DUTs) to multiple test instruments. With this configurati on, only one channel in bank 0 (one “row”) can be connected to one channel in bank 1 ( one “colu mn”) at a time.

Figure 2-4. T ypi cal Mat rix-Type Con fi gurati o n

22 Configuring the HP E1366A/E1367A RF Multiplexers Chapter 2

Changing Multiplexer Components

As required, you can change the logical address switch setting, replace the protection fuses, change the interrupt priority jumper setting, or remove channel t erminat ion r e sistors. See Figure 2 -5 f or loca tions.

Figure 2-5. RF Multiplexer Component Locations

Chapter 2 Configuring the HP E1366A/E1367A RF Multiplexers 23

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