Agilent Technologies 5071A User Manual

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Telecommunications Options Supplemental Manual

This manual describes the Telecommunicati ons optio ns f or th e Agilent 5071A Primary Frequency Standard. The information in this manual applies toinstruments with one or more telecommunications options having the number prefix listed below, unless accomplanied by a "Manual Updating Changes" package indicating otherwise.

SERIAL NUMBER PREFIX: 3249A and above Options: 048, 104, 105, 220, 221, 222, 270, 271, and 272

Agilent 5071A Primary Frequency Standard

Copyright Agilent Technologies, Inc. 1994, 2000

Printed: December 2000

Printed in USA

Manual part number 05071-90042

Certification and Warranty

Certification

Agilent Technologies certifies that this product met its published specification at the time of shipment from the factory. Agilent further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by the Institute’s calibration facility, and to the calibration facilities of other Inte rn a t i onal Standards Organization members.

Warranty

Agilent warrants Agilent hardware, accessories and supplies against defects in materials and workmanship for a period of one year from date of shipment. If Agilent receives notice of such defects during the warranty period, Agilent will, at its option, either repair or replace products which prove to be defective. Replacement products may be either new or like-new.

Agilent warrants that Agilent software will not fail to execute its programming instructions, for the period specified above, due to defects in material and workmanship when properly installed and used. If Agilent receives notice of such defects during the warranty period, Agilent will replace software media which does not execute its programming instructions due to such defects.

Safety Considerations General

This product and related documentation must be reviewed for familiarization with this safety markings and instructions before operation.

This product is a safety Class I instrument (provided with a protective earth terminal).

Before Applying Power

Verify that the product is set to match the available line voltage and the correct fuse is installed. Refer to instructions in Chapter 1 of the Manual.

Before Cleaning

Disconnect the product from operating power before cleaning.

Safety Earth Ground

An uninterruptible safety earth ground must be provided from the mains power source to the product input wiring te rm i n a l s or supplied power cable.

Warning Symbols That May Be Used In This Book

Instruction manual symbol; the product will be marked with this symbol when it is necessary for the user to refer to the instructio n manual.

Safety Considerations (contd)

Indicates earth (ground) terminal.

Indicates terminal is connected to chassis when such connection is not apparent.

Indicates Alternating current.

Indicates Direct current.

WARNING

BODILY INJURY OR DEATH MAY RESULT FROM FAILURE TO HEED A WARNING. DO NOT PROCEED BEYOND A WARNING SIGN UNTIL THE INDICATED CONDITIONS ARE FULLY UNDERSTOOD AND MET.

CAUTION

Damage to equipment, or incorrect measurement data, may result from failure to heed a caution. Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met.

For detailed warranty information, se e b a c k ma tter.

Indicates hazardous voltages.

Agilent Technologies, Inc. 8.CD.NL.A.03.11.97.R1.J.CW2F Santa Clara Site 5301 Stevens Creek Boulevard Santa Clara, California 95052-8059

For additional safety and acoustic noise inf ormation, see back matter.

MANUAL UPDATING CHANGES CHANGE DATE: December 12, 2001

MANUAL UPDATING COVERAGE

This supplement adapts your manual to

Serial Numbers prefixed through:

US3930

ABOUT THIS SUPPLEMENT

The information in this supplement is provided to correct manual errors and to adapt the manual to instruments containing changes after the manual print date.

Change and correction information in this supplement is itemized by page numbers corresponding to the original manual pages. The pages in this supplement are organized in numerical order by manual page number.

HOW TO USE THIS SUPPLEMENT

Insert this title page in front of the title page in your manual.

MANUAL IDENTIFICATION

Instrument: Agilent 5071A

Primary Frequency Standard

Telecommunications Options

Supplemental Manual

Manual Print Date: December 2000 Manual Part Number: 05071-90042

Perform all changes specified for “All Serials”, and all changes through the Series Prefix of

your instrument or board.

Insert any complete replacement pages provided into your manual in the proper location. The following pages are included in this update:

If your manual has been updated according to the last edition of this supplement, you need only perform those changes pertaining to the new series prefix; see List of Effective Pages. New information affecting “All Serials” will be indicated by a “#” in front of the change.

LIST OF EFFECTIVE PAGES

SERIAL PREFIX, SERIAL # OR DATE CODE

# All Serials ....................... 3-3.

All Serials ....................... All pages.

MANUAL CHANGES

AGILENT 5071A TELECOMMUNICATIONS OPTIONS SUPPLEMENTAL MANUAL

SERIAL PREFIX, SERIAL # OR DATE CODE

CHANGES

# Page 3-3, Accessories Furnished, dc input connector

All Serials >Add the following

PAGES

Option 048: Delete reference to dc input connector part number 1251-0126

Title Page, Serial Number Prefix

All Serials >Change from "3249A and above" to "US3930"

Throughout The Entire Manual

All Serials >Change all references of "HP" to "Agilent"

>Change all references of "HP 5071A" to "5071A"

(05071-90042, December 2000)

Contents

Preface

How to Use This Manual v

Instrument Identification v Instruments Covered by This Manual vi Manual Organization vi How to Order Manuals vi

1 Operating and Programming

Introduction 1-2

Introducing the HP 5071A 1-2

HP 5071A Major Features 1-2

Operating The HP 5071A 1-2

Clock Functions 1-2

Getting Started 1-3

The HP 5071A at a Glance 1-3

Connectors 1-3 Rear Panel Connections 1-3 Starting The HP 5071A 1-6 Performing Basic Tasks 1-6

Synchronizing to an External 1 PPS Reference 1-6 Powering Down the HP 5071A 1-6

Using the HP 5071A 1-7

Monitoring Status 1- 7 Disabling the Internal Standby Battery 1-7

In Case of Difficulty 1-8

Front-Panel Indicators and Messages 1-8 Operating System Failures 1-8

Restarting the HP 5071A 1-8 Verifying Operation 1-8

2. Rear-Panel Output Connectors 1-8

HP 5071A Command References 1-9

HP 5071A Command Summary 1-9

SCPI Commands 1-9

SCPI Subsystem Commands 1-9

Status Reporting 1-9

Rear-Panel Status Output Operation 1-9

Status Output Programming 1-9

iii

Contents

Installation 1-10

Preparation for Use 1-10

Power Requirements 1-10

Bench Operation 1-10 Operating the HP 5071A From External Dc Power 1-10

Preparing the HP 5071A For External Dc Operation 1-11

Replacing the External Dc Input Power Fuse 1-11 Internal Standby Battery Maintenance 1-11 Long-Term Storage 1-11

2Service

Performance Tests 2-2 Service 2-3

Top-Level Diagnostic Tree Organization 2-4 Warmup and Fatal Error Diagnostic Tree 2-5 Advisory Messages 2-6 Assembly/Module Diagnostic Trees 2-8 A9 Diagnostic Tree (A/M Subsection 4) 2-9

Theory of Operation 2-10

Introduction 2-10 Simplified Functional Description 2-10 Functional Block Descriptions 2-11 Instrument Control Block 2-12 Reference Oscillator/RF-Chain Block 2-12 Input/Output 2-13 Power Supply Block 2-14 A1 Motherboard Circuit Description 2-15 A11 Power Steering Logic Assembly 2-16 48V Subpanel Assembly 2-17 B1 Internal-Standby Battery 2-18

Replaceable Parts 2-19

Exchange Assemblies 2-19

Backdating 2-21

Contents

3 Specifications

Supplemental Characteristics 3-2

Time Standard 3-2

Clock 1PPS Outputs 3-2

Clock Synchronization 3-2 Internal Standby Battery (Nominal Values) 3-2 Environmental 2-9

Power Requirements 3-2 Weight 3-3 Accessories Furnished 3-3

dc input connector 3-3

Available Accessories and Options 3-4

Options 3-4

Contents

Preface

This manual provides operating, programming, and assembly-level service information for the HP 5071A Primary Frequency Standard Telecommunications options.

How to Use This Manual

Telecommunications option information is presented as changes, additions, and deletions to the material covered in the HP 5071A Operating and Programming and Assembly-Level Service manuals. The information appears in sequential order of occurr ence corresponding to the subject headings that are affected by the options.

Each occurrence of telecommunications option information uses the following presentation format:

Subject hea d in g ( s): a. Left-justified option designation where:

Option 048 = 48 Vdc power option, and Any TCO Option = Telecommunications

output options 104, 105, 220, 221, 222, 270, 271, or 272.

b. Text information explanation for

either HP 5071A manual, and/or,

c. Corrected text informatio n for the

cited subject heading(s)

Except for the rear-panel illustration in chapter 1 of the HP 5071A Operating and Programming manual and Figure 2-1, all changes and corrections to manual illustrations appear as descriptive text items that convey new, changed, or deleted information about the artwork.

The structure of topics covered corresponds to the outlines of the HP 5071A Operating and Programming and Assembly-Level Service manual except for specifications which occupies its own chapter. (See manual organization below.)

Instrument Identification

Instrument identification is made from the serial number located on the rear panel of the HP 5071A. Agilent uses a two-part serial number with the first part (prefix) identifying a series of instruments and the second part (suffix) identify ing a particular instrument within a series. An Agilent assigned alpha character between the prefix and suffix identifies the country in which the instrument was manufactured.

vii

Preface

Instruments Covered by This manual

This manual applies to any HP 5071A Primary Frequency Standard that is equipped with one or more of the telecommunications options shown on the title page and has the same serial number prefix(es) also shown on the title page. If the serial number prefix of your standard differs from that listed o n the tit le page of this manual, then the re may be differences between this manual and your instrument.

Instruments having a higher serial prefix are covered when required by one or more manual-change sheets included with this manual. If a required change sheet is missing, contact your nearest Agilent Sales Office listed at the back of this manual.

Manual Organization

This telecommunication options supplemental manual consists of a table of contents, preface, and three chap ters. The page running headers identify the chapters and sections of t his manual. The chapt er contents are summarized as follows:

Chapter 1,

Chapter 2,

Chapter 3,

Operating and Programming, is divided into seven sections: Introduction, Getting Started, Using the 5071A, In Case of Difficulty, HP 5071A Command References, and Installation.

Assembly-Level Service, is divided into five sections: Performance Tests, Service, Theory of Operation, Replaceable Parts, and Backdating.

Specifications, is divided into two sections: Supplemental Characteristics, and Available Accessories and Optio ns .

How to Order Manuals

This manual’s part number is 05071-90031. Use it to order copies of this manual. The HP 5071A Operating and Programming manual part number is 05071-90029. The HP 5071A Assembly-Level Service manual part number is 05071-90003.

viii

Operating and Programming

Operating and Program m ing

Introduction

This section describes the additions, changes, and deletions to the information that appears in the introduction of the 5071A Operating and Programming manual.

Introducing the 5071A

5071A Major Features

Option 048:

Any TCO Option:

Option 048:

In the bulleted text delete:

• 45 minute standby battery

Operating The 5071A

Clock Functions

1st paragraph, 2nd sentence is changed:

The 1 pps output is moveable in time and can be automatically synchronized with other 1 PPS sources.

3rd paragraph is changed:

1 pps output: There is one 1 pps output on the 5071A front panel.

4th paragraph is changed:

The 1 pps output is TTL compatible and requires 50Ω termination. You can automatically synchronize the 1 PPS signal to an external 1 PPS, or manually change its timing by up to ± 500 ms in 50 ns steps. Use the front-panel Sync Input for an external system reference input.

2nd paragraph (page vii) is changed:

Power input and management: The 5071A operates from either ac or dc power. Power-source priority is controlled by the 5071A. The priority order is:

1. External dc power: when below the specified minimum voltage (40 Vdc on both dc inputs), or when absent, the 5071A switches to,

2. Ac line power.

(Item 3 is deleted.)

1-2

Operating and Program m ing

Getting Started

This section describes the additions, changes, and deletions to the information that appears in chapter 1 of the 5071A Operating and Programming manual.

CHAPTER GUIDE Where to Find Important Topics

Option 048:

Any TCO Option:

Option 048:

In the bulleted list delete:

• Powering Down the 5071A 1-8

The 5071A at a Glance

Connectors

The paragraph immediately following item 8. Sync Input is changed-

(The electrical characteristics of these connectors are the same as the rear-panel 1 pps Output and Sync Input. See “Rear-Panel Features” on page 4 and 5 for more information.) The rear-panel 1 pps outputs and sync input connectors are absent. The front-panel 1 pps output and sync input signal characteristics are however accurately described by items 5 and 6 of Table 1-1 “Connector Descriptions” in the Operating and Programming manual.

Rear-Panel Connections

Table 1-1 Connector Descriptions items in the Operating and

Programming manual are changed: Items 5 and 6 are absent from the rear-panel. Item 9 is absent. Item 10 Connector Type is a 5-screw terminal strip. Item 10 Signal Characteristics are 40-58 Vdc on the rear-panel

terminal strip dc-power inputs 1 and/or 2 with GND as chassis ground.

1-3

Operating and Program m ing

Getting Started

5071A Rear Panel Connections

(See Table 1-1 in this chapter for connector descriptions)

1 2

NOTE

Programmable outputs 5MHz or 10MHz

SERIAL PLATE

12.75

+13 dBm 50 W Sine Wave

ort

OUTPUTS

1 MHz

100 kHz

OPTIONS

001 Hi Performance

5071A

WARNING:

To avold electric shock, do not remove covers.

No user-serviceable parts inside. Refer all servicing to qualified personnel.

CAUTION:

METRIC & INCH HARDWARE CONSULT SERVICE MANUAL

ISM 1-A

FOR LABORATORY USE BY QUALIFIED PERSONNEL FOUR USAGE EN LABORATOIRE PAR PERSONNEL QUALIFIE

8 kHz Sync In

TTL 50W

8 kHz Sync Out

TTL 50W

Framed Output G.703/6

G.704 50W

Sync Out

75W G.703/10

RS - 232C

(DTE)

2.048 Mb/s Sync Out

Status Output

50W TTL

34 5

The illustration on these pages depicts an 5071A equipped with Telecomm Options 048 and 272. When the telecomm output option includes either 100 or 120 Ω balanced output lines, the Framed Output connector will be a two-center-conductor BNC in place of the one shown above. In addition, the Mb/s and impedance designations will correspond to the particular telecomm output option shipped with the 5071A.

1-4

Operating and Program m ing

Getting Started

48 VDC

npu

POWER/FUSE

100/120

1.5 AT

req

50-400 Hz

CAU

TION:

r cont

inued protection agains

onl

y with fuse o

ange

:40

npu

48 VDC 48 VDC

npu

f same typ

58 V

perat

: 2.5A 250

FUSE

ing Voltage

100VA MAX

e a

220/240

50-60 H

t fir

e, repl

ace

nd rat

ing

0.8 A

120 Vac

TELECO OPTIONS

048 104

1.544 Mb/

105

2.048 Mb/

221 271

222 272

220 270

1-5

Operating and Program m ing

Getting Started

Table 1-1 Rear-Panel Telecommunications Options Connections

Item

Number

1 2

5 6

* Note: Item 3, Framed Output complies with ITU-T (formerly CCITT) G.703/6 (G.703/2

if option 104 or 105 is present) formatted per G.704. Item 4, per G.703/10, 75 Ω (Additionally @ 1.544 MHz if option 104 or 105 present).

Function

8 kHz Sync In BNC (F) 8 kHz Sync Out BNC (F) Framed Output BNC (F)

Sync Out BNC (F) Sync Out BNC (F) Dc Power Fuse Cartridge

Dc Power Input 5-Screw

Connector

Type

Fuse

Terminal

Strip

Signal Characteristics

8 kHz, TTL level, into 50 Ω 8 kHz, TTL level, into 50 Ω

4.8 V p-p max into 75 Ω

(6V p-p into 100, or 120 Ω)

3 V p-p max into 75 Ω

TTL level, into 50 Ω

Fuses external dc power, 2.5 amp, 250-

volt rating (part number 2110-0952)

40 - 58 Vdc, 100 W Max, as labeled on

rear panel (See bottom of page 1-10)

Starting The 5071A

Option 048:

Any TCO Option:

Option 048:

Bottom of page 1-6. * note is changed:

* 1 entry may be present: “Power source is BATT”

Performing Basic Tasks

Synchronizing to an External 1 PPS Reference

Observe the following changes to the external synchronization

procedure:

References to 1 PPS outputs and Sync inputs are singular. Reference to rear-panel 1 pps output(s) and Sync input do not apply. Use of the front-panel ARM REAR menu option will always result in

the display showing Sync timed out.

Powering Down the 5071A

This procedure is deleted.

1-6

Operating and Program m ing

Using the 5071A

This section describes the additions, changes, and deletions to the information that appears in chapter 2 of the 5071A Operating and Programming manual.

CHAPTER GUIDE

Any TCO Option:

Option 048:

All references to 1 PPS outputs and Sync inputs are singular.

Chapter Summary

In the bulleted list delete.

• Disabling the Internal-Standby Battery 2-15 Where to Find Important Topics

In the bulleted list delete:

• Disabling the Internal Battery 2-15

Monitoring Status

Table 2-2. Internal Operating Parameters

The bottom rightmost table cell entry under Typical Range is changed:

DC or AC

Disabling the Internal -Standby Battery

This procedure is deleted.

1-7

Operating and Program m ing

In Case of Difficulty

This section describes the additions, changes, and deletions to the information that appears in chapter 3 of the 5071A Operating and Programming manual.

Front-Panel Indicators and Messages

Table 3-1. Front-Panel Status Lights

Option 048:

Option 048: Option 048:

Option 048:

Any TCO Option:

All references to internal-battery power, battery status, or battery

operation are deleted.

Operating System Failure

Restarting the 5071A

Step 3 of the procedure is deleted.

Step 4 is renumbered and changed:

3. Reapply external dc or ac-line power.

Step 5 becomes step 4.

Verifying Operation

2. Rear-Panel Output Connectors

Checking the Outputs

Step 1 of the procedure is changed:

1. Connect one of the 5071A outputs to an input channel of the 54600A with a 50Ω feed through termination and BNC cable. (When verifying rear-panel telecommunications outputs, use manual scope settings and the appropriate termination as shown on the rear-panel labels and in Table 1-1. The referenced rearpanel telecommunications outputs should comply with ITU-T (formerly CCITT) G.703/6 (G.703/2 if option 104 or 105 is pres ent) , formatted per G.704. Sync Out complies per G.703/10, 75 Ω (Additionally @ 1.544 MHz if option 104 or 105 is present.

1-8

Operating and Program m ing

5071A Command References

This section describes the additions, changes, and deletions to the information that appears in chapter 5 of the 5071A Operating and Programming manual.

5071A Command Summary

SCPI Commands

Table 5-2. SCPI Command Summary

Option 048:

Any TCO Option:

Option 048:

The response form for

changed:

AC/DC/LOW

The operation of [SOURce]:PTIMe:SYNC with the REAR parameter will

always result in sync timed out with arming terminated after 1.5 seconds,

DIAGnostic:STATus:SUPPLY? command has

SCPI Subsystem Commands

The changes for the 5071A Command Summary above also apply to the

corresponding SCPI Subsystem Command references,

Status Reporting

Table 5-5. SCPI OPERation Status Register

In table 5-5. Bit 9 (On Battery) will always be zero (0).

Rear-Panel Status Output Operation

Status Output Programming

The actual use of SCPI OPERation status register Bit 9 as a

programmed condition will never cause a status output port state change.

The programming examples shown will work only when the 48 Vdc power option is absent, but are still valid to describe the technique for programming the status output port.

1-9

Operating and Program m ing

Specifications

Refer to chapter 3 of this manual for telecommunications options specification changes.

1-10

Operating and Program m ing

Installation

This section describes the additions, changes, and deletions to the information that appears in chapter 7 of the 5071A Operating and Programming manual.

CHAPTER GUIDE Chapter Summary

Option 048:

In the bulleted list delete:

• Internal Battery Maintenance 7-11

Where to Find Important Topics

In the bulleted list delete:

• Disconnecting the Internal Battery 7-13

• Removing and Replacing the Internal Battery 7-13

• Using the Battery Disconnect Switch 7-12

Preparation for Use

Power Requirements

2nd paragraph, 1st and 2nd sentences are changed:

Operating power may also be supplied as external dc voltages between 40 and 58 Vdc. Maximum dc-power consumption is 100 W.

Bench Operation

1st WARNING sentence is changed-

The 5071A weighs 28 kg (61 lbs).

Operating the 5071A From External Dc Power

Option 048:

1st paragraph, 1st sentence is :

In addition to ac power capability, the 5071A can also operate from an external dc source with a voltage range of ± 40 to 58 Vdc.

Note content following the first paragraph is changed:

The 5071A runs from dc power when both ac and dc power are available. The 5071A will not run from ac power unless the dc power source fails or is disconnected.

1-11

Operating and Program m ing

Installation

Preparing the RP 5071-A For External-Dc Operation

Option 048:

Delete the existing procedure and use the following procedure

1. Connect the positive (+) terminal of the 40 to 58 Vdc power to the + screw terminal of INPUT 1 on the rear-panel 5-terminal barrier strip.

2. Connect the minus (–) terminal of the 40 to 58 Vdc power to the – screw terminal of INPUT 1 on the rear-panel 5-terminal barrier strip.

3. Connect the system or power source ground terminal to the 3rd (center) screw terminal of the rear-panel barrier strip labeled chassis GND.

4. Check your connections for correct polarity, voltage range, and tightness before you turn the dc power on.

5. If a second 48 Vdc power source will be used, repeat steps 1 through 4 with INPUT 2 of the rear-panel barrier strip. (INPUT 2 will be an alternate power source if INPUT 1 should fail, be disconnected, or sag below the voltage of INPUT 2.)

6. Connect external ac power to the rear-panel ac input connector.

7. Remove dc power from INPUT 1 (and INPUT 2 if connected) on the rear-panel barrier strip. Observe the front panel, the status message should read: source AC.

Option 048:

8. Reapply dc power to the instrument; the front-panel status message reads: source DC.

Replacing the External Dc Input Power Fuse

Step 3 of the procedure is changed:

3. Insert the replacement fuse (2.5 A, 250-volt rating, part number 2110-0952).

Internal Standby Battery Maintenance

All procedures are deleted.

Long-Term Storage

The last parenthetical sentence of the last paragraph referencing the

internal-standby battery is deleted-

1-12

Assembly-Level Service

Performance Tests

This section describes the additions, changes, and deletions to the information that appears in chapter 1 of the 5071A Primary Frequency Standard Assembly-Level Service manual.

5071A Operational Verification

Rear-Panel Output Signal Checks

Any TCO Option:

Step 2 at the top of page 1-9. second parenthetical sentence is changed

and has an additional sentence:

(Use manual settings if needed to check the front-panel 1 pps output.) Verify that the G.70n referenced rear-panel telecommunications outputs comply with ITU-T (formerly CCITT) G.703/6 (G . 703/2 if option 104 or 105 is present), formatted per G.704. Sync Out complies per G.703/10, 75 Ω (Additionally @ 1.544 MHz if option 104 or 105 is present.

2-2

Assembly-Level Service

Service

This section describes the additions, changes, and deletions to the information that appears in chapter 2 of the 5071A Primary Frequency Standard Assembly-Level Service manual.

Assembly Identification and Location

Table 2-2. 5071A Assembly Identification

Any TCO Option:

Option 048: Option 048: Option 048:

The part number and exchange part number for A9 are as follows for the

eight different telecommunications options:

TCO Option Part Number Exchange Part Number

104 05071-60276 05071-69276 105 05071-60281 05071-69281 220 05071-60286 05071-69286 221 05071-60287 05071-69287 222 05071-60288 05071-69288 270 05071-60289 05071-69289 271 05071-60273 05071-69273 272 05071-60290 05071-69290

The part number for A1 is 05071-60028 when option 048 is present. The part number for A11 is 05071-60033 when option 048 is Present The part number for A12 is 05071-60279 when option 048 is Present

. .

Option 048:

The -part number for T1- is 9100-5134 when option 048 is present

2-3

Assembly-Level Service

Service

Figure 2-1. Instrument Top View

Option 048:

The “Batteries (Hidden behind battery door)”callout is changed to:

48 Vdc Input Terminals and Fuse

Top-Level Diagnostic Tree Organization

Warning Message Diagnostic Tree (Diagnostic Subsection 4)

On page 2-15, item number “1.4.4 Power Source is Batt” is deleted and

item “1.4.4.1” is changed to 1.4.4.

Top-Level Diagnostic Tree (Diagnostic Section 1)

1.0.0 First Power On

Step 3 text is changed:

Ensure that the rear-panel dc-line fuse holder has a good fuse of the correct rating.

Step 6 text is changed:

Power on the 5071A by applying dc or ac power.

The

If No response to the QUESTION: is changed:

Disconnect power immediately and check the appropriate rear-panel power fuse.

If fuse is intact, Go to, 1.0.1.1.0. If fuse is blown, Go to, 2. 1. 1. 1. 0 (Power Supply Diagnostic Tree.)

Step 1. 0. 1. 1. 0 is added below:

1.0.1.1.0 DC Input 1 and 2 Power Steering Circuit Check

Use the DC Input 1 and 2 Power Steering Circuit Schematic (Figure 2-1.) located on page 17 of this chapter to troubleshoot the dc power input steering function.

QUESTION: Is the DC input power steering circuit functional?

(48V Subpanel Assembly, Option 048)

If Yes: Go to, 1. 0. 1. 1. If No: Replace the 48V Subpanel Assembly,

(part number 05071-60277) and retest.

2-4

Assembly-Level Service

Service

Warm-up and Fatal Error Diagnostic Tree

(Diagnostic Subsection 3)

1.3.1.1 Operating Error-Code Interpretation

Any TCO Option:

Option 048:

On page 2-28,

changed to:

16. Unused bit, always 0

1.3.2.1 Cs Oven Failed: Ion Pump Overcurrent Warm-up Error

The

If No response to the QUESTION, is changed to:

The problem may have cleared itself, remove instrument power and retest.

1.3.2.2 A16/CBT Excess Ion-Pump

Step 1 text is changed to:

Remove instrument power and wait at least 60 seconds for the high voltage supplies to bleed down.

FIRST WORD message item 16 “SAW Osc unlocked” is

Current Test

Warning Message Diagnostic Tree (Subsection 4)

1.4.4 Power Source is Batt

This procedure is deleted,

1.4.4.1 Ac-Line Operation - Battery Indicator On

Option 048:

This procedure is renumbered as 1.4.4.

1.4.4.2 Instrument Ac Power Absent

Step 1 text is changed to:

Apply ac power.

Step 3 text is changed to:

Verify that the voltage is between 45 and 51 Vdc and record results.

The QUESTION: is changed to:

Is the voltage 45 - 51 Vdc?

2-5

Option 048:

Assembly-Level Service

Service

1.4.4.2.1 A1C4 Voltage Test Procedure

The

QUESTION, is changed to:

Is the voltage between 45 and 51 Vdc?

1.4.4.3 LF1/T1 Transformer Fault Verification

Option 048:

Any TCO Option:

Option 048:

Step 2 text is changed to:

Verify presence of 33 - 47 Vrms.

The QUESTION: is changed to:

Is the voltage between 33 - 47 Vrms?

The T1 part number within

changed to:

(9100-5134)

If No response text to the QUESTION., is

Advisory Messages (Subsection 7)

1.7.1 Advisory Message Interpretation

Advisory Message: “SAW Osc unlocked” is deleted,

Functional-Group Diagnostic Trees (Diagnostic Section 2)

1 Power-Supply Diagnostic Tree: 2.1.1.1.0

The bulleted item “B1 24V Internal-Standby Battery” on page 2-45 is deleted.

Power-Supply Diagnostic Tree (Functional Group Subsection 1)

The bulleted item “B1 24V Internal-Standby Battery” on page 2-46 is deleted.

Option 048:

2.1.1.1.1 A12 Power Input Test

Step 2 4 text is changed to:

Verify that the voltage present is between 45 and 51 Vdc with no more than 1 Vrms ripple.

The second sentence of the

changed:

b) Verify that the voltage present is between 45 and 51 Vdc with no more than 1 Vrms ripple.

2-6

If No response to the first QUESTION: is

Assembly-Level Service

Service

2.1.1.1.2 A11/A11 Cable Test

Option 048:

Step 2 text is changed to:

Verify that the voltage present is between 45 and 51 Vdc with no more than 1 Vrms ripple.

2.1.1.1.3 A11/A11-A1 Cables Test

Step 2 text is changed to:

Verify that the voltage present is between 45 and 51 Vdc with no more than 1 Vrms ripple.

2.1.1.1.4 A1CR3 Bridge Rectifier Test

Step 2 text is changed to:

Verify that the voltage is at least 33 Vrms.

2.1.2.2.0 Ac-Line Fuse Fault Isolation: r/o LF1/T1

The T1 part number within

If No response text to the QUESTION: is

changed to:

(9100-5134)

2.1.4.0.0 Ext. Dc Input Fuse Fault

Option 048:

OPTION 048:

The second sentence of the first paragraph is changed to:

The assumption here is that ONLY the dc fuse blows, with the instrument operating normally from the ac line.

2.1.5.0.0 No Operation From Internal Standby Battery

This procedure is deleted.

2.1.5.1.0 Internal-Battery Charger Test

This procedure is deleted.

2.1.5.2.0 A11 F1 Fuse Fault

This procedure is deleted.

2-7

Assembly-Level Service

Service

Assembly/Module Diagnostic Trees (Diagnostic Section 3)

A8 Diagnostic Tree (A/M Subsection 3)

3.3.3 1 PPS Outputs Test

Any TCO Option:

Step 2 text is changed to:

Use the oscilloscope with 50 Ω input termination to check for 20 microsecond pulses at a rate of one pulse per second at the external front-panel 1 PPS output connector.

Step 3 text first sentence is changed to:

Verify that the 1 PPS output level is: pulse low level less than

0.5 volts, and pulse high level more than 3.0 volts.

QUESTION: is changed to:

The

Is the 1 PPS output as specified in step 2?

3.3.4 A8 Front/Rear-Panel Sync Input Test

The procedure title is changed to:

3.3.4 A8 Front-Panel Sync Input Test

Step 5 is deleted.

3.3.5 A8-to-Chassis Interconnect Test

Step 3 text is changed to:

Carefully remove the two SMB cable connectors (Note their locations first.) from J17 and J18 on A1.

Step 4 text is changed to.

Verify continuity and rule out short-to-ground for both cables an their corresponding front-panel 1 pps output and Sync input connectors. Record results.

QUESTION, text is changed to:

The

Are any of the two SMB-to-BNC cable assemblies open or shorted?

2-8

Assembly-Level Service

Service

A9 Diagnostic Tree (A/M Subsection 4)

3.4.5.0 A9 Mon Signal Test

Any TCO Option:

Any TCO Option: Any TCO Option:

This procedure is deleted.

3.4.6.0 A9 J4 80-MHz Signal Test

This procedure is deleted. The following procedure is added:

4.4.4.1 A9-to-Chassis TCO Option signal Interconnect Test

If one or more of the four rear-panel telecommunications outputs are absent or operating out of specification, use the following procedure to

isolate the fault. 1 Remove instrument power. 2 Carefully remove the five (or six for a differential framed output)

telecomm signal SMB cable connectors (Note their locations first.)

from J6, J7, J8, (J9 - used only for options 104, 105, 220, 221, and

222), J10, and J11 on A9.

3 Verify continuity and rule out short-to-ground for all five cables and

their corresponding rear-panel input and outputs. 4 Reconnect the verified cables and connectors.

QUESTION: Are any of the five SMB-to-BNC cable assemblies open

or shorted?

If Yes: Replace the cable ass embly as required and retes t .

If No: Reapply instrument power, retest A9 TCO input/outputs, and

replace A9 if any TCO signal output fault persists.

2-9

Assembly-Level Service

Theory of Operation

This section describes the additions, changes, and deletions to the

information that appears in chapter 3 of the 5071A Primary

Frequency Standard Assembly-Level Service manual.

Introduction

A1 Motherboard Circuit Description

Option 048:

Any TCO Option:

The second sentence of the paragraph at the bottom of page 3-3 is

changed to:

It gives you information about how individual components on A1 and

component groups (including A11, A12, and T1) perform their

functions and provide dc power to the instrument.

Simplified Functional Description

Item 6 text is changed to:

Power distribution; A1, A11, A12, LF1, and T1.

Figure 3-1. 5071 A Simplified Block Diagram

The block diagram is changed in the following ways:

The rear-panel Sync Input entering the left side of the Input/Output

Block is absent.

The rear-panel 1 PPS outputs exiting the right side of the Input/

Output Block are absent.

A bi-directional line is added from the right side of the Reference

Oscillator/RF-Chain Block to the right border of the diagram with a

callout title “Telecommunications Input/Outputs”.

Option 048:

Any TCO Option:

The block diagram is changed in the following way:

The B1 Standby Battery in the Power Supply Block is absent.

Reference Oscillator/RF-Chain Block

The second paragraph has an added second sentence:

Any telecommunications output option provides a Sync input and four

outputs that are fed into and derived from the Reference Oscillator/

RF Chain Block.

2-10

Assembly-Level Service

Theory of Operation

Input/Output Block

Any TCO Option:

Option 048:

Any TCO Option:

Option 048:

The first sentence of the second paragraph is changed to:

The block also receives a front-panel Sync-input signal to synchronize

the 1 pps output with an external system or event.

Power Supply Block

The text is changed to:

The power supply block provides the instrument with required

internal dc power from either ac power or an external dc power

source. It monitors the presence of these power sources, switching

from one to another as required.

Functional Block Descriptions

On page 3-7. the second bulleted item text under the Reference

Oscillator/RF-Chain Block is changed to:

A9 Frequency Multiplier/Telecommunication Sync Input/Outputs

Synthesizer

On page 3-7. the last bulleted item under the Power Supply Block is

deleted:

Any TCO Option: Any TCO Option:

Figure 3-2. 5071 A Overall Block Diagram

The Rear-Panel Sync Input at the top of page 3-8 is deleted: The A9 Frequency Multiplier Module block has the following name and

input output changes:

A9 Frequency Multiplier/Telecommunications Input Sync and Output

Synthesizer Module

An additional 8 kHz Sync Input is routed to A9 from the rear panel.

Four additional outputs exit A9 and are routed to the rear panel;

• 8 kHz Sync Out

• Framed Output

• Sync Out

• Sync Out TTL

2-11

Assembly-Level Service

Theory of Operation

Figure 3-2. 5071 A Overall Block Diagram (Continued)

Any TCO Option:

Option 048:

Any TCO Option:

The A8 1 PPS Assembly has the following input/output changes:

Input B is deleted.

Both rear-panel 1 PPS outputs are deleted.

The Power-Supply Block has the following changes:

The DC Power input voltage is changed from 22-42V to 40-58V

The B1 24V Battery and A11 Battery Charger are deleted.

Instrument Control Block

Operating Firmware: Warning Mode

The first sentence of the Warning Mode description at the top of page

3-14 is changed:

The warning mode occurs when the health monitor detects a possible

problem.

Reference Oscillator/RF-Chain Block

The third paragraph on page 3-15 that describes A9 has an additional

sentence:

In addition, all telecommunications options sync input and outputs

are routed to and synthesized within the A9 module.

2-12

Assembly-Level Service

Theory of Operation

Table 3-2. Reference Oscillator/RF-Chain Block Interconnections

Any TCO Option:

The following interconnection information is added to table 3-2 on page

3-16:

Source

Module or

Assembly

A9 N/A Telecommunications

From Path Connectors

Signal Name

8 kHz Sync Input

8 kHz Sync Out

Framed Output

Sync Out, G.703/10

Sync Out, 50Ω TTL

To Path Connectors

A9J7 8 kHz Sync Input,

A9J8 8 kHz Sync Out,

Opt 27n: A9J10

Opt 104, 105, and 22n: A9J9-A9J10

A9J11 Sync Out, G.703/10

A9J6

Destination Module or Assembly

Rear Panel

Rear Panel Framed Output,

Rear Panel

Rear Panel Sync out 50Ω TTL,

Rear Panel

Any TCO Option:

Input/Output Block

Table 3-5. Input/Output Block Interconnections

The third paragraph on page 3-21 that describes A8 is changed:

A8 has four inputs and two outputs. An 80 MHz input from A9 is

used with I-bus command I/O to generate: a. 1-MHz system clock

signal sent to A2, 4, 6, and 7, and b. one front-panel 1 PPS output. In

addition, a front-panel Sync input connector is used with I-bus

command signals to synchronize the instrument’s 1-pps output to

external events and systems.

The following information is deleted from table 3-5 on page 3-21:

• Second row describing the rear-panel Sync Input,

• Seventh and eight rows concerning the rear-panel 1 pps outputs.

2-13

Assembly-Level Service

Theory of Operation

Power Supply Block

Option 048:

Option 048: Option 048:

The first sentence of the first paragraph at the top of page 3-22 is

changed:

The Power-Supply Block consists of LF1 line filter/cable assembly, T1

toroidal power transformer, A1

circuits, A11 power steering logic assembly, and A12 Dc-Dc power-

converter module.

The second paragraph at the top of page 3-22 is changed:

The power-supply block provides the instrument with internal dc

power from either an ac power or external dc power source. It

monitors the presence of these power sources, switching from external

dc to ac line as required.

The voltages specified in the third paragraph on page 3-22 are changed:

28 Vrms is 37 Vrms and 32-38 Vdc is 45-51 Vdc

The fifth paragraph on page 3-22 is deleted: The sixth paragraph on page 3-22 is changed:

A11 implements the power-source steering hierarchy and provides

power-status signals to A3. A11 receives the dc and ac power sources,

selects one of them and routes it to the A12 Dc-Dc power converter

module.

rectifier/crowbar/Ext dc input filter

Option 048:

The last paragraph on page, 3-22 is changed:

A12 converts the 40-58 Vdc steered power to nominal +5V, +12V, and

-12V dc and routes these three voltages to A1 at A1J2.

2-14

Assembly-Level Service

Theory of Operation

Table 3-6. Power Supply Block Interconnections

Option 048:

The following signal name information in table 3-6 on page 3-23 is

changed:

• The voltage range in the third row is changed from 22-42 Volts to 40-58 Volts.

• The voltage range in the fourth row is changed from 32-38 Volts to 45-51 Volts.

• The voltage range in the fifth and sixth row is changed f r om 22- 42 Volts to 40-58 Volts.

• The only signal names present in the tenth row are: DC Valid, DC Valid Return, AC Valid, and AC Valid Return.

A1 Motherboard Circuit Description

Overvoltage Protection Circuit

The dc voltage ratings specified in the last sentences of paragraphs four

and five on page 3-24 are changed:

56 Vdc is 72 Vdc and 50 Vdc is 65 Vdc.

The dc voltage rating specified in the last sentence of paragraph three on

page 3-25 is changed:

56 Vdc is 72 Vdc.

Option 048:

External Dc Input Circuit

The paragraph that describes the external dc input circuit on page 3-25

is changed:

A1J1 receives the dc input from an external dc source (40-58V). The dc voltage is then routed to a filter consisting of A1L1 and A1C2 before being sent to A11 Power Steering Logic Assembly via connector A1J4. Diode A1CR2 prevents any damage to the instrument if the external dc-input source is reversed. The current handling capability of A1CR2 is higher than that of the external input fuse (2.5A) so the fuse blows before the diode fails.

2-15

Assembly-Level Service

Theory of Operation

A11 Power Steering Logic Assembly

Option 048:

The paragraph that describes the power-steering logic circuit on page 3-

25 is changed:

A11 directs the outputs of two power sources to the main instrument input bus in a hierarchical order. The two power sources are: 1) the external dc input and 2) the dc from the ac line (through a transformer, rectifier, and filter). The main instrument power input goes directly to A12 Dc-Dc Power Converter Module which supplies power to all instrument components (except A11 Power Steering Logic Assembly itself, which has its own supply). All circuits are divided up into three functional blocks: external dc, housekeeping, and dc from ac line.

Figure 3-3. A1 Power Supply/Distribution Schematic Diagram

The circuit diagram on page 3-26 is changed:

• The input voltage range for the External DC Input Filter Block is 40-58 VDC,

• The value of C2 is 470 µf,

• The value of C4 is 4700 µf ,

• The value of R4 is 17.8 Ω,

• The voltage rating of VR1 is 68V,

• The value of L1 is 235 µH.

Option 048:

Figure 3-3. A1 Power Supply/Distribution Schematic Diagram (cont.)

The circuit diagram on page 3-27 is changed:

• The value of C3 is 470 µf,

• The value of R7 is 31.6 kΩ.

• The value of R8 is 31.6 kΩ.

Figure 3-4. A1 Slot/Module Interconnect Diagram

The slot/module interconnect diagram on -page 3-28 is changed.

The Ext DC Connector (J1) is deleted and replaced by a five-screw terminal strip and associated subpanel assembly ( part number 05071-60277) that includes the dc input fuse.

Refer to Figure 2-1 for a schematic diagram of the five-screw dc input terminal strip and associated power steering diodes for dc power input 1 and input 2.

2-16

Assembly-Level Service

Theory of Operation

Option 048:

The slot/module interconnect diagram on page 3-28 is changed:

The J3 Low Current Steering Logic connector does not have +5 VDC, POWER FAIL, or BAT VALID signals pres ent.

48V Subpanel Assembly

The schematic diagram in figure 2-1 below illustrates the wiring of the 48V Subpanel Assembly. This assembly steers dc input power, and provides fuse protection for the external 48V external dc input power. The output of this circuit at P1 is routed to the input of the External DC Input Filter Block (J1) illustrated at the top-left comer of figure 3-3. in the 5071A Assembly-Level Service manual.

npu

Grn/Yel

DC Fuse Holder

F2 2.5A DC Fuse

3 Position Solder

MP2

Terminal strip

assis

ound

MP3

Rear Panel

Red Red

Grn/Yel

Blk

MP3

Solder Lug

To A1

MP1

Rear Panel

DC Power

5 Position screw

Terminal strip

Figure 2-1. DC Input 1 and 2 Power Steering Schematic (48V Subpanel

Assembly, part number 05071-60277)

2-17

Assembly-Level Service

Theory of Operation

Figure 3-5. A1 Power-Supply Block Diagram

Option 048:

The Power Supply block diagram on page 3-30 is changed:

• The Ext DC Input voltage is 40-58 VDC,

• The F2 fuse rating is 2. 5A,

• The T1 toroidal power transformer part number is 9100-5134,

• The P/O B1 battery packs are deleted,

• The 05071-60226 battery connector assemblies are deleted,

• The F1 fuse and series-connected diode on A11 are deleted.

The external dc input(s) enter the instrument via the 48V Subpanel Assembly (part number 05071-60277) which provides both inputs with power steering and fuse protection. The schematic diagram for the Subpanel Assembly appears in Figure 2-1 of this chapter.

B1 Internal-Standby Battery

The paragraph describing the B1 Internal Standby Battery on page 3-31

is deleted:

2-18

Assembly-Level Service

Replaceable Parts

This section describes the additions, changes, and deletions to the information that appears in chapter 5 of the 5071A Primary Frequency Standard Assembly-Level Service manual.

Exchange Assemblies

Table 5-1. A9 Telecommunications Options (TCO) Exchange Assemblies

Any TCO Option:

Option 048: Option 048:

The part number and exchange part number for A9 are as follows for the

eight different telecommunications options:

TCO Option Part Number Exchange Part Number

The part number for A1 is 05071-60028 when option 048 is present. The part number for A11 is 05071-60033 when option 048 is present.

Option 048: Option 048:

The part number for A12 is 05071-60279 when option 048 is present, The 48V Subpanel Assembly illustrated by the schematic diagram shown

in Figure 2-1 is part number 05071-60277.

2-19

Assembly-Level Service

Replaceable Parts

2-20

Assembly-Level Service

BACKDATING

This section describes the additions, changes, and deletions to the information that appears in chapter 7 of the 5071A Primary Frequency Standard Assembly-Level Service manual.

2-21

Assembly-Level Service

BACKDATING

2-22

Specifications

Supplemental Characteristics

This section describes the additions, changes, and deletions to the information that appears in the Supplemental Characteristics section of the Specification chapter for either the HP 5071A Operating and Programming manual or the HP 5071A Assembly-Level Service manual.

Time Standard

Clock 1 PPS Outputs

Any TCO Option:

Option 048:

All references to 1 PPS Outputs are singular.

Clock Synchronization

The 2nd sentence is changed:

Sync pulse: front-panel input; may be armed via remote command or front-panel keystrokes.

Internal Standby Battery (Nominal Values)

Delete all Internal Standby Battery specifications when the 48 Vdc

Power option is present.

Environmental

Power Requirements

The following items under Input Power (nominal) are changed:

dc: Primary power source; unit will draw dc power in preference to ac power.

The following items under Input voltage: dc: are changed:

dc: 40-58 Vdc operating for option 048. Damage level: 72V. The maximum allowable volt-age between either input terminal and

chassis is 60V.

3-2

Specifications

Supplemental Characteristics

Weight

Option 048:

The following are changed:

Net weight: 28 kg (61 lb.). Shipping weight: 38 kg (83 lb.).

Accessories Furnished dc input connector

The dc input connector description is changed:

5-screw terminal standard barrier strip

3-3

Specifications

Available Accessories and Options

This section describes the additions, changes, and deletions to the information that appears in the Available Accessories and Options section of the Specification chapter for either the HP 5071A Operating and Programming manual or the HP 5071A Assembly-Level Service manual.

Option 048:

Any TCO Option:

The description for the HP 5089A has additional information:

The HP 5089A will not power the HP 5071A when option 048 is present.

Options

The descriptions for the telecommunications output options are added

beneath the description of option 048:

104: 1.544 Mbbs, 100 Ω balanced, Super Frame (D4) 105: 1.544 Mbbs, 100 Ω balanced, Extended Super Frame (ESF) 220: 2.048 Mbbs, 120 Ω balanced, Common Channel Signaling 221: 2.048 Mbbs, 120 Ω balanced, Channel Associated Signaling 222: 2.048 Mbbs, 120 Ω balanced, Channel Associated Signaling

with CRC4

270: 2.048 Mbbs, 75 Ω unbalanced, Common Channel Signaling 271: 2.048 Mbbs, 75 Ω unbalanced, Channel Associated Signaling 272: 2.048 Mbbs, 75 Ω unbalanced, Channel Associated Signaling

with CRC4

The above telecommunications options comply with CCITT recommendations G.703 and G.704 for electrical signal characteristics and formatted content.

In addition to the G.703 & G.704 defined outputs, all telecommunications options provide the following input/outputs:

• 8 kHz Frame Sync In

• 8 kHz Frame Sync Out

• Sync Out (Telecommunications Rate 1.544 or 2.048 Mbbs)

3-4

Service and Support

Contacting Agilent Technologies:

For more information about Agilent test and measurement products, applications, and services, visit our web site at http://www.agilent.com/services/English/index.html.

Agilent’s Test and Measurement Fax Service for United States and Canada:

Technical information for test and measurement products and services is available 24 hours a day, 7 days a week, by calling 1-800-800-5281.

Technical Support:

If you need technical assis tanc e with an Agile nt test and m easur eme nt produc t or appli catio n, y ou c an find a li st of local service representatives on the web site liste d above . If you do not have access to the Internet, one of the following centers can direct you to your nearest representative:

Asia Pacific:

Hong Kong, SA R

Tel: (852) 2599-7777

Fax: (852) 2506-9284

Australia/New Zealand:

Blackburn, Victoria, Australia

Tel: 1-800-629-485 (Australia) Tel: 0-800-738-378 (New Zealand)

Fax: (61-3) 9272-0749

Canada:

Mississauga, ON, Canada

Tel: 877-894-4414

Fax: (905) 206-4700

Europe:

European Marketin g O rga ni z ation The Netherlands

Tel: +31 20 547 9999

Fax: +31 20 547 7799

Japan:

Measurement Assistance Center Tokyo, Japan

Tel: 81-426-56-7832

Fax: 81-426-56-7843

Latin America:

Latin America Region Headquarters Miami, FL, U.S.A.

Tel: (305) 267-4245

Fax: (305) 267-4288

United States:

Test & Measurement Call Center Englewood, CO, U.S.A.

Tel: (800) 452-4844 (Toll free in US) Fax: (303) 662-3726

Printed in U.S.A Data subject to change Rev 12/2000

Continued from front matter. . .

Warranty (contd)

Agilent does not warrant that the operation of Agilent products will be uninterrupted or error free. If Agilent is unable, within a reasonable time, to repair or replace any product to a condition as warranted, customer will be entitled to a refund of the purchase price upon prompt return of the product.

Agilent products may contain rema nu fa c t u red parts equivalent to new i n performance or may have been subjected to incidental use.

The warranty period begins on the date of delivery or on the date of installation if installed by Agilent. If customer schedules or delays Agilent installation more than 30 days after delivery, warranty begins on the 31st day from delivery.

Warranty does not apply to defects resul t i n g from (a) improper or inadequate maintenance or calibration, (b) software, interfacing, parts or supplies not supplied by Agilent, (c) unauthorized modification or misuse, (d) operation outside of the published environmental specifications for the product, or (e) improper site preparation or maintenance.

TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR CONDITION, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED AND AGILENT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE.

Agilent will be liable for damage to tangible property per incident up to the greater of $300,000 or the actual amount paid for the product that is the subject of the claim, and for damages for bodily injury or death, to the extent that all such damages are determined by a court of competent jurisdiction to have been directl y ca used by a defective Agilent product.

TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS WARRANTY STATEMENT ARE CUSTOMER’S SOLE AND EXCLUSIVE REMEDIES. EXCEPT AS INDICATED ABOVE, IN NO EVENT WILL AGILENT OR ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL (INCLUDING LOST PROFIT OR DATA), OR OTHER DAMAGE, WHETHER BASED IN CONTRACT, TORT, OR OTHERWISE.

For consumer transactio ns in Australia and New Zealand: the warranty terms contained in this statement, except to the extent lawfully permitted, do not exclude, restrict or modify and are in addition to the mandatory statutory rights applicable to the sale of this product to you.

Assistance

Product maintenance agreements and other customer assistance agreements are available for Agilent products.

For any assistance, contact your nearest Agilent Sales and Service Office.

Safety Considerations (contd)

WARNING

ANY INTERRUPTION OF THE PROTECTIVE GROUNDING CONDUCTOR (INSIDE OR OUTSIDE THE INSTRUMENT) OR DISCONNECTING THE PROTECTIVE EARTH TERMINAL WILL CAUSE A POTENTIAL SH OC K HAZARD THAT COULD RESULT IN PERSONAL INJURY. (GROUNDING ONE CONDUCTOR OF A TWO CONDUCTOR OUTLET IS NOT SUFFICIENT PROTECTION.)

Whenever it is likely that the protection has been impaired, the instrument must be made inoperative and be secured against any unintended opera tion.

If this instrument is to be energized via an autotransformer (for voltage reduction) m a ke sure the common terminal is connected to the earthed pole terminal (neutral) of the power source.

Instructions for adjustments while covers are removed and for servicing are for use by service-trained personnel only. To avoid dangerous electric shock, do not perform such adjustments or servicing unless qualified to do so.

For continued protection against fire, replace the line fuse(s) only with 250V fuse(s) of the same current rating and type (for example, normal blow, time delay). Do not use repaired fuses or short circuited fuseholders.

Acoustic Noise Emissions

LpA<47 dB at operator position, at normal operation, tested per EN 27779. All data are the results from type test.

Geräuschemission

LpA<47 dB am Arbeits platz, normaler Betrieb, geprüft nach EN 27779. Die Angagen beruhen auf Ergebnissen von Typenprüfungen.

Electrostatic Discharge Immunity Testing

When the product is tested with 8kV AD, 4kV CD and 4kV ID according to IEC801-2, a system error may occur that may affec t measurement data made during these disturbance s. After these occurrences , the system self-recovers without user intervention.

8.CD.NL.A.03.11.97.R1.J.CW2B

DECLARATION OF CONFORMITY

According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014

Manufacturer’s Name:

Manufacturer’s Address

Declares, that the product

Product Name:

Model Number:

Product Options:

Conforms with the following product specifications:

EMC Standard

CISPR 22: 1997 / EN 55022:1998 IEC 1000-4-2:1995 / EN 50082-1:1997 IEC 1000-4-3:1995 / EN 50082-1:1997 IEC 1000-4-4:1995 / EN 50082-1:1997

Safety

Supplementary Information:

The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC, the EMC Directive 89/336/EEC (including 93/68/EEC) and carries the CE marking accordingly.

IEC 1010-1:1990+A2 / EN 61010-1:1993

Agilent Technologies, Inc.

Santa Clara Site 5301 Stevens Creek Boulevard Santa Clara, California 95052-8059 U.S.A.

Primary Frequency Standard

5071A

This declaration includes all product options.

Limit

Class A 4kV CD, 8kV AD 3 V/m

0.5kV signal lines, 1kV power lines

May 11, 1999

Date

Bruce Euler, Quality Engineering Manager

For further information, please contact your local Agilent Technologies sales office, agent or distributor.

WARNING: This is a Class A product. In a domestic environment this product may cause radio interference, in which case, the user may be required to take adequate measures.



Manual Part Number 05071-90042 Printed in U.S.A., DECEMBER 2000

Agilent Technologies 5071A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

DECLARATION OF CONFORMITY