Agilent Technologies 34946A Bedienungsanleitung

Agilent Technologies

Agilent 34946A-34947A

Microwave

Switch/Driver Modules

User’s Guide

Agilent Technologies, Inc.

Printed in Malaysia

Edition 1

June 2008 E0608

*34980-90046*

34980-90046

Notices

No part of this manual may be reproduced

in any form or by any means (including

electronic storage and retrieval or transla-

tion into a foreign language) without prior

agreement and written consent from

Agilent Technologies, Inc. as governed

by United States and international copy-

right laws.

Manual Part Number

34980-90046

Edition

First Edition, June 2008

Printed in Malaysia

Agilent Technologies, Inc.

3501 Stevens Creek Blvd

Santa Clara, CA 95052 USA

Microsoft® and Windows® are U.S. regis-

tered trademarks of Microsoft Corporation.

Software Revision

This guide is valid for the firmware that

was installed in the instrument at the time

of manufacture. However, upgrading the

firmware may add or change product

features. For the latest firmware and

documentation, go to the product page at:

www.agilent.com/find/34980A

Warranty

The material contained in this docu-

ment is provided “as is,” and is sub-

ject to being changed, without notice,

in future editions. Further, to the max-

imum extent permitted by applicable

law, Agilent disclaims all warranties,

either express or implied, with regard

to this manual and any information

contained herein, including but not

limited to the implied warranties of

merchantability and fitness for a par-

ticular purpose. Agilent shall not be

liable for errors or for incidental or

consequential damages in connection

with the furnishing, use, or perfor-

mance of this document or of any

information contained herein. Should

Agilent and the user have a separate

written agreement with warranty

terms covering the material in this

document that conflict with these

terms, the warranty terms in the sep-

arate agreement shall control.

Technology Licenses

The hardware and/or software described in

this document are furnished under a

license and may be used or copied only in

accordance with the terms of such license.

Restricted Rights Legend

U.S. Government Restricted Rights.

Software and technical data rights granted

to the federal government include only

those rights customarily provided to end

user customers. Agilent provides this

customary commercial license in Software

and technical data pursuant to FAR 12.211

(Technical Data) and 12.212 (Computer

Software) and, for the Department of

Defense, DFARS 252.227-7015 (Technical

Data - Commercial Items) and DFARS

227.7202-3 (Rights in Commercial Com-

puter Software or Computer Software

Documentation).

Safety Notices

CAUTION

A CAUTION notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed or

adhered to, could result in damage

to the product or loss of important

data. Do not proceed beyond a

CAUTION notice until the indicated

conditions are fully understood and

met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly per-

formed or adhered to, could result

in personal injury or death. Do not

proceed beyond a WARNING

notice until the indicated condi-

tions are fully understood and met.

ii Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide

Additional Safety Notices

The following general safety precautions

must be observed during all phases of oper-

ation of this instrument. Failure to comply

with these precautions or with specific

warnings or instructions elsewhere in this

manual violates safety standards of design,

manufacture, and intended use of the

instrument. Agilent Technologies assumes

no liability of the customer’s failure to com-

ply with the requirements.

General

Do not use this products in any manner not

specified by the manufacturer. The protec-

tive features of this product may be

impaired if it is used in a manner not speci-

fied in the operation instructions.

Before Applying Power

Verify that all safety precautions are taken.

Make all connections to the unit before

applying power.

Ground the Instrument

This product is provided with protective

earth terminals. To minimize shock hazard,

the instrument must be connected to the

ac power mains through a grounded power

cable, with the ground wire firmly con-

nected to an electrical ground (safety

ground) at the power outlet. Any interrup-

tion of the protective (grounding) conduc-

tor or disconnection of the protective earth

terminal will cause a potential shock haz-

ard that could result in personal injury.

Do Not Operate in an Explosive

Atmosphere

Do not operate the instrument in the pres-

ence of flammable gases or fumes.

Do Not Remove the Instrument

Cover

Only qualified, service-trained personal

who are aware of the hazards involved

should remove instrument covers. Always

disconnect the power cable and any exter-

nal circuits before removing the instrument

cover.

Do Not Modify the Instrument

Do not install substitute parts or perform

any unauthorized modification to the prod-

uct. Return the product to an Agilent Sales

and Service Office for service and repair to

ensure that safety features are maintained.

In Case of Damage

Instruments that appear damaged or defec-

tive should be made inoperative and

secured against unintended operation until

they can be repaired by qualified service

personnel.

Safety Symbols

Waste Electrical and Electronic

Equipment (WEEE) Directive

2002/96/EC

This product complies with the WEEE

Directive (2002/96/EC) marking require-

ment. The affixed product label (see above)

indicates that you must not discard this

electrical/electronic product in domestic

household waste.

Product Category: With reference to the

equipment types in the WEEE directive

Annex 1, this product is classified as a

“Monitoring and Control instrumentation”

product.

To return unwanted products, contact

your local Agilent office, or go to

www.agilent.com/environment/product

for more information.

Technical Support

If you have questions about your shipment,

or if you need information about warranty,

service, or technical support, contact

Agilent Technologies:

In the United States: (800) 829-4444

In Europe: 31 20 547 2111

In Japan: 0120-421-345

Or go to www.agilent.com/find/assist

for information on contacting Agilent in

your country of specific location. You can

also contact your Agilent Technologies

Representative.

Alternating current

Frame or chassis

terminal

Standby supply. Unit is

not completely

disconnected from ac

mains when switch is off

Caution, risk of electric

shock

Caution, refer to

accompanying description

Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide iii

iv Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide

The Declaration of Conformity (DoC) for the 34980A mainframe instrument

can be found on page iii in the 34980A Mainframe User’s Guide. That DoC

applies to the 34980A mainframe and all available plug-in modules.

Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide v

Contents

34946A and 34947A Dual/Triple Microwave Switch Modules . . . . . . . . . . . . . . . . . . . . . . .1

34946A and 34947A Option 001 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

34946A and 34947A SCPI Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Installing SMA Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

34946A and 34947A Simplified Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

vi Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide

34946A and 34947A Dual/Triple Microwave Switch Modules

Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide 1

34946A and 34947A Dual/Triple Microwave Switch Modules

The 34946A and 34947A modules provide single-pole, double-throw switches

in 4 GHz, 20 GHz, and 26 GHz options. The 34946A and 34947A modules are

also available with no switches installed - but include cable kits that allow you

to connect switches external to the module chassis. The configuration options

of the modules are summarized below:

The 34946A and 34947A modules do not connect to the analog buses. Instead,

all connections are made through the visible SMA connectors via external

cables. Each connector on the modules is labeled with a three-digit number

that represents a channel you can control programmatically from the front

panel or from the Web UI.

34946A Dual 1x2 SPDT Terminated

Microwave Switch

34947A Triple 1x2 SPDT Unterminated

Microwave Switch

Option 001: No switches installed

Option 004: 4 GHz switches installed

Option 020: 20 GHz switches installed

Option 026: 26 GHz switches installed

Option 001: No switches installed

Option 004: 4 GHz switches installed

Option 020: 20 GHz switches installed

Option 026: 26 GHz switches installed

Supported Switches:

Agilent N1810UL Unterminated 3-port SPDT

Agilent N1810TL Terminated 3-port SPDT

Agilent N1811TL Terminated 4-port transfer

Agilent N1812UL Unterminated 5-port transfer

Supported Switches:

Agilent N1810UL Unterminated 3-port SPDT

Switch reference document number:

5968-9653E

Switch reference document number:

5968-9653E

34946A Option 001 contains cables and connectors to support two of the supported switches

listed above.

34947A Option 001 contains cables and connectors to support three Agilent N1810UL switches.

NOTE There are several suppliers of RF cables and connectors used with Agilent

switches. Three suppliers are listed below:

Pasternack Enterprises, Inc.

http://www.pasternack.com

Micro-Coax

http://www.micro-coax.com

S. M. Electronics L.L.C.

http://www.smelectronics.us

2 Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide

34946A and 34947A Dual/Triple Microwave Switch Modules

The 34946A module (Options 004, 020, 026) has two independent Agilent

N1810TL switches. These terminated 3-port 50-ohm switches are designed to

maintain impedance matching. The 34947A module (Options 004, 020, 026)

contains three independent Agilent N1810UL switches. These higher density

3-port switches are unterminated. For channel configuration on each module,

refer to the simplified schematics on page 5.

The 34946A and 34947A modules implement a verification (position

indication) feature, which senses the actual hardware state of the specified

channels following a ROUTe:CLOSe or ROUTe:OPEN operation. If a switch

operation appears to have failed, an error will be generated at the time the

ROUTe:CLOSe or ROUTe:OPEN command is executed. An error will be generated

for each channel operation that did not properly verify. The verification

process will slow overall switching performance on the module.

34946A and 34947A Option 001 Installation

Option 001 to the 34946A and 34947A is a 30-pin ribbon connector to 9-pin

D-Sub connector cable kit. The option allows you to connect two (34946A) or

three (34947A) switches external to the instrument chassis.

The steps for installing the cable assembly and 9-pin D-Sub connectors are as

follows:

1. Remove the 34946A or 34947A cover by removing the screw (T-10 torx) on

the top of the instrument (Figure 1).

2. Insert the ribbon cable into the connector on the printed circuit board as

shown (Figure 1).

3. 34946A - Route the center and left 9-pin strands through the corresponding

slots of the instrument face plate (Figure 1). Cut the cable strands to the

desired length, or if necessary, the full length of the strands can be used.

Do not attach the D-Sub connector (Step 4) until the strands have been

routed through the face plate slots.

3. 34947A - Route the right, center, and left 9-pin strands through the

corresponding slots of the face plate as shown (Figure 1).

NOTE 34946A Option 001 and 34947A Option 001as purchased meet all safety and EMC

regulatory requirements. Any modifications or additions to the options and their

conformance to local regulatory requirements are the responsibility of the user.

CAUTION Use care when handling the 34946A or 34947A chassis with the cover removed

as components within the chassis are susceptible to damage from ESD.

34946A and 34947A Dual/Triple Microwave Switch Modules

Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide 3

Cut the cable strands to the desired length, or if necessary, the full length of

the strands can be used.

Do not attach the D-Sub connector (Step 4) until the strands have been

routed through the face plate slots.

Figure 1. 34946A and 34947A Option 001 Installation.

4. Insert the ribbon cable strand into the D-Sub connector as shown. Align the

metal contacts of the connector over the pins. Press the connector onto the

strand using a vise or clamp to press the contacts evenly through the cable

insulation. Continue to press the connector until the metal contacts are no

longer visible. Remove any excess part of the strand protruding through the

connector.

5. Fold the excess ribbon cable length back into the chassis body behind the

faceplate. Re-attach the instrument cover and tighten the torx screw to secure

the cover in place.

The pinouts of the N1810/11/12 switches and of the D-Sub connector are

shown in Figure 2. Note that the pin numbers of the switch are defined as

shown, not as printed on the connector.

34946A w/Option 001 34947A w/Option 001

9-pin strand

align connector contacts over rows in cable strand

4 Agilent 34946A-34947A Microwave Switch/Driver Modules User’s Guide

34946A and 34947A Dual/Triple Microwave Switch Modules

Figure 2. N1810/11/12 Switch and D-Sub Connector Pinouts.

34946A and 34947A SCPI Programming Examples

The programming examples below provide you with SCPI command examples

to use for actions specific to the microwave switch modules.

The slot and channel addressing scheme used in these examples follow the

form sccc where sis the mainframe slot number (1 through 8) and ccc is the

three-digit channel number. For information on specific configurations, refer

to the simplified schematics in this chapter.

For complete information on the SCPI commands used to program the 34980A,

refer to the Agilent 34980A Programmer’s Reference contained on the 34980A

Product Reference CD. For example programs, also refer to the 34980A

Product Reference CD.

Example: Closing channels You can use the ROUTe:CLOSe to close channels on

the microwave switch modules, but these modules do not support the

ROUTe:OPEN command. You can open channels by closing other channels. With

this “one-step” operation, the relays switch in the proper order that avoids

momentary connection of the wrong input to the switch output. The following

statement closes channel 201 of a microwave switch module installed in slot 5.

ROUTe:CLOSe (@5201)

Example: Querying channels for open or close state The following command

returns the open (1) or close (0) state of channel 202 for a module in slot 3.

ROUTe:CLOSe? (@3202)

Example: Querying the system for module identify The following command

returns the identify of the module installed in slot 7.

SYSTem:CTYPe? 7

13579

2468

N1810/11/12 DC Connector Pin Out

9 7 5 3 1

8 6 4 2

Option 001 D-Sub

Connector Pinout

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