Microchip Technology CSIII Manuel utilisateur
2021 Microchip Technology Inc. Advance Information DS50003057A
CSIII (Model 4310B) User’s
Guide
DS50003057A-page 2 Advance Information 2021 Microchip Technology Inc.
Information contained in this publication is provided for the sole
purpose of designing with and using Microchip products. Infor-
mation regarding device applications and the like is provided
only for your convenience and may be superseded by updates.
It is your responsibility to ensure that your application meets
with your specifications.
THIS INFORMATION IS PROVIDED BY MICROCHIP "AS IS".
MICROCHIP MAKES NO REPRESENTATIONS OR WAR-
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RELATED TO THE INFORMATION INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTIES OF NON-
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RECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUEN-
TIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND
WHATSOEVER RELATED TO THE INFORMATION OR ITS
USE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS
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ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON
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the buyer agrees to defend, indemnify and hold harmless
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Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specifications contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is secure when used in the intended manner and under normal conditions.
• There are dishonest and possibly illegal methods being used in attempts to breach the code protection features of the Microchip
devices. We believe that these methods require using the Microchip products in a manner outside the operating specifications
contained in Microchip's Data Sheets. Attempts to breach these code protection features, most likely, cannot be accomplished
without violating Microchip's intellectual property rights.
• Microchip is willing to work with any customer who is concerned about the integrity of its code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of its code. Code protection does not
mean that we are guaranteeing the product is "unbreakable." Code protection is constantly evolving. We at Microchip are
committed to continuously improving the code protection features of our products. Attempts to break Microchip's code protection
feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or
other copyrighted work, you may have a right to sue for relief under that Act.
Trademarks
The Microchip name and logo, the Microchip logo, Adaptec,
AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT,
chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex,
flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck,
LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi,
Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer,
PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire,
Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST,
SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon,
TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA are registered
trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries.
AgileSwitch, APT, ClockWorks, The Embedded Control Solutions
Company, EtherSynch, FlashTec, Hyper Speed Control, HyperLight
Load, IntelliMOS, Libero, motorBench, mTouch, Powermite 3,
Precision Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-
Wire, SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub,
TimePictra, TimeProvider, WinPath, and ZL are registered
trademarks of Microchip Technology Incorporated in the U.S.A.
Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, Augmented Switching, BlueSky,
BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive,
CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net,
Dynamic Average Matching, DAM, ECAN, Espresso T1S,
EtherGREEN, IdealBridge, In-Circuit Serial Programming, ICSP,
INICnet, Intelligent Paralleling, Inter-Chip Connectivity,
JitterBlocker, maxCrypto, maxView, memBrain, Mindi, MiWi,
MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK,
NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net,
PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE,
Ripple Blocker, RTAX, RTG4, SAM-ICE, Serial Quad I/O,
simpleMAP, SimpliPHY, SmartBuffer, SMART-I.S., storClad, SQI,
SuperSwitcher, SuperSwitcher II, Switchtec, SynchroPHY, Total
Endurance, TSHARC, USBCheck, VariSense, VectorBlox, VeriPHY,
ViewSpan, WiperLock, XpressConnect, and ZENA are trademarks
of Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated in
the U.S.A.
The Adaptec logo, Frequency on Demand, Silicon Storage
Technology, and Symmcom are registered trademarks of Microchip
Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany
II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in
other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2021, Microchip Technology Incorporated, All Rights Reserved.
ISBN: 978-1-5224-7867-6
For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.
CSIII (MODEL 4310B) USER’S GUIDE
2021 Microchip Technology Inc. DS50003057A-page 3
Preface
PURPOSE OF THIS GUIDE
The CSIII user guide provides basic recommendations for use of Microchip's CSIII
4310B cesium reference.
WHO SHOULD READ THIS GUIDE
This document is intended for engineers and technicians who have purchased the
CSIII and need to understand how to operate the product.
DOCUMENT LAYOUT
This guide contains the following sections:
•Chapter 1. “Product Overview”: Provides an overview of the product, describes
the major hardware and software features, and lists the system specifications.
•Chapter 2. “Installation”: Contains the Principle of Operation, Start-Up
Sequence, and aspects related to first power-up.
•Chapter 3. “Operation”: Provides an overview of the telemetry interface and
command structure.
•Chapter 4. “Maintenance and Troubleshooting”: Contains information on
required maintenance, troubleshooting, shipping and cesium tube replacement.
•Chapter 5. “Theory of Operation”: Explains principals of operation.
•Appendix A. “Specifications”: Refers to latest product specifications in product
data sheet DS00003499.
•Appendix B. “Programmer’s Guide”: This section describes the protocol for the
RS-232 interface and includes general communication parameters and the com-
mand list. Note that this section is designed for experienced programmers and
assumes a general knowledge of RS-232 interface programming.
•Appendix C. “Customer Assistance/Technical Support”: This appendix con-
tains information about contacting Microchip using support services.
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our website
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXXXXA”, where “XXXXXXXX” is the document number and “A” is the revision level
of the document.
For the most up-to-date information on development tools, see the MPLAB® IDE online help.
Select the Help menu, and then Topics, to open a list of available online help files.
CSIII (Model 4310B) User’s Guide
DS50003057A-page 4 2021 Microchip Technology Inc.
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB® IDE User’s Guide
Emphasized text ...is the only compiler...
Initial caps A window the Output window
A dialog the Settings dialog
A menu selection select Enable Programmer
Quotes A field name in a window or
dialog
“Save project before build”
Underlined, italic text with
right angle bracket
A menu path File>Save
Bold characters A dialog button Click OK
A tab Click the Power tab
N‘Rnnnn A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
4‘b0010, 2‘hF1
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Italic Courier New A variable argument file.o, where file can be
any valid filename
Square brackets [ ] Optional arguments mcc18 [options] file
[options]
Curly brackets and pipe
character: { | }
Choice of mutually exclusive
arguments; an OR selection
errorlevel {0|1}
Ellipses... Replaces repeated text var_name [,
var_name...]
Represents code supplied by
user
void main (void)
{ ...
}
Preface
2021 Microchip Technology Inc. DS50003057A-page 5
WARNINGS, CAUTIONS, RECOMMENDATIONS, AND NOTES
Warnings, Cautions, Recommendations, and Notes attract attention to essential or crit-
ical information in this guide. The types of information included in each are displayed
in a style consistent with the examples below.
WHERE TO FIND ANSWERS TO PRODUCT AND DOCUMENT QUESTIONS
For additional information about the products described in this guide, please contact
your Microchip representative or your local sales office. You can also contact us on the
web at www.microsemi.com/ftdsupport.
When this manual is updated the latest version will be available for downloading from
Microchip’s web site. Manuals are provided in PDF format for ease of use. After down-
loading, you can view the manual on a computer or print it using Adobe Acrobat
Reader.
Manual updates are available at: www.microsemi.com/ftdsupport
RELATED DOCUMENTS AND INFORMATION
See your Microchip representative or sales office for a complete list of available docu-
mentation. To order any accessory, contact the Microchip Sales Department. See
www.microsemi.com/sales-contacts/0 for sales support contact information. If you
encounter any difficulties installing or using the product, contact Microchip Frequency
and Time Systems (FTS) Services and Support:
U.S.A. Call Center: including Americas, Asia and Pacific Rim
Frequency and Time Systems
3870 N 1st St.
San Jose, CA 95134
Toll-free in North America: 1-888-367-7966
Telephone: 408-428-7907
Fax: 408-428-7998
WARNING
To avoid serious personal injury or death, do not disregard warnings. All warnings use
this style. Warnings are installation, operation, or maintenance procedures, practices,
or statements, that if not strictly observed, may result in serious personal injury or even
death.
CAUTION
To avoid personal injury, do not disregard cautions. All cautions use this style. Cau-
tions are installation, operation, or maintenance procedures, practices, conditions, or
statements, that if not strictly observed, may result in damage to, or destruction of, the
equipment. Cautions are also used to indicate a long-term health hazard.
Note: All notes use this style. Notes contain installation, operation, or mainte-
nance procedures, practices, conditions, or statements that alert you to
important information, which may make your task easier or increase your
understanding.
CSIII (Model 4310B) User’s Guide
DS50003057A-page 6 2021 Microchip Technology Inc.
email: [email protected]
Internet: www.microsemi.com/ftdsupport
Europe, Middle East, and Africa (EMEA)
Microchip FTS Services and Support EMEA
Altlaufstrasse 42
85635 Hoehenkirchen-Siegertsbrunn
Germany
Telephone: +49 700 3288 6435
Fax: +49 8102 8961 533
email: [email protected]
email: [email protected]
THE MICROCHIP WEBSITE
Microchip provides online support via our website at www.microchip.com. This website
is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the website contains the following
information:
•Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
•General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
•Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.
Technical support is available through the website at:
http://www.microchip.com/support.
DOCUMENT REVISION HISTORY
Revision A (December 2020)
• Initial release of this document as Microchip DS50003057A.
- Under Microsemi’s literature system, this document was 900-00509-000,
rev B.
CSIII (MODEL 4310B) USER’S GUIDE
2021 Microchip Technology Inc. DS50003057A-page 7
Table of Contents
Preface ............................................................................................................................ 3
Purpose of This Guide........................................................................................... 3
Who Should Read This Guide............................................................................... 3
Document Layout .................................................................................................. 3
Conventions Used in this Guide ............................................................................ 4
Warnings, Cautions, Recommendations, and Notes............................................. 5
Where to Find Answers to Product and Document Questions .............................. 5
Related Documents and Information..................................................................... 5
The Microchip Website.......................................................................................... 6
Customer Support ................................................................................................. 6
Document Revision History ................................................................................... 6
Chapter 1. Product Overview ........................................................................................ 9
1.1 Introduction...................................................................................................... 9
1.2 LED Indicators................................................................................................. 9
1.3 Rear Panel Connections ................................................................................. 9
1.4 Software ........................................................................................................ 10
1.5 Power ............................................................................................................ 10
1.6 Factory Configurations .................................................................................. 10
Chapter 2. Installation.................................................................................................. 11
2.1 Installation ..................................................................................................... 11
2.2 Unpacking Instructions .................................................................................. 11
2.3 Environmental Considerations ...................................................................... 11
2.4 Pre-Installation Checklist............................................................................... 11
2.5 Tools and Materials ....................................................................................... 12
2.6 Installing the CsIII.......................................................................................... 12
2.7 Installing the Monitor3 Software .................................................................... 13
2.8 Establishing Communications ....................................................................... 13
CSIII (MODEL 4310B) User’s Guide
DS50003057A-page 8 2021 Microchip Technology Inc.
Chapter 3. Operation ....................................................................................................15
3.1 Monitor3 main Status Window....................................................................... 15
3.2 Unit Monitoring and Data Logging................................................................. 16
3.3 Adjusting Output Frequencies....................................................................... 18
3.4 Synchronizing to a 1PPS Source .................................................................. 18
3.5 Slewing the Output Phase............................................................................. 19
3.6 Alarms ........................................................................................................... 20
3.7 Event Logging ............................................................................................... 21
3.8 Factory Settings ............................................................................................ 21
3.9 Communications............................................................................................ 22
Chapter 4. Maintenance and Troubleshooting ..........................................................23
4.1 Preventive Maintenance................................................................................ 23
4.2 Troubleshooting............................................................................................. 24
4.3 Shipping ........................................................................................................ 24
4.4 Hazardous material (HAZMAT) Shipping Considerations............................. 24
4.5 Shipping Products Back to the Factory ......................................................... 24
4.6 Shipping Carriers........................................................................................... 25
4.7 Storage.......................................................................................................... 25
4.8 Cesium Beam Tube Vacuum ........................................................................ 25
4.9 Cesium Beam Tube Shelf Life....................................................................... 25
Chapter 5. Theory of Operation...................................................................................27
5.1 Cesium beam Frequency Standard Concept ................................................ 27
5.2 Cesium Beam Tube....................................................................................... 28
5.3 Clock Servo................................................................................................... 32
5.4 Zeeman Servo............................................................................................... 33
5.5 Gain Servo .................................................................................................... 33
5.6 Microwave Power Servo................................................................................ 34
5.7 Unit Initialization ............................................................................................ 35
5.8 Alarms and Indicators.................................................................................... 36
Appendix A. Specifications .........................................................................................37
A.1 Alarm Interface.............................................................................................. 37
A.2 Options.......................................................................................................... 37
Appendix B. Programmer’s Guide ..............................................................................39
B.1 General Parameters...................................................................................... 39
B.2 Restart Message........................................................................................... 39
B.3 Cesium Command Reference....................................................................... 40
B.4 Event Log...................................................................................................... 45
Appendix C. Customer Assistance/Technical Support ............................................47
Worldwide Sales and Service .....................................................................................49
CSIII (MODEL 4310B) USER’S GUIDE
2021 Microchip Technology Inc. DS50003057A-page 9
Chapter 1. Product Overview
1.1 INTRODUCTION
The Microchip CsIII Cesium Beam Frequency Standard is designed for high-precision
timing and frequency applications requiring high stability, low-noise RF, and 1PPS ref-
erence signals. The CsIII comes in a standard 19-inch wide rack mount housing. It is
2U high (3.75”) and weighs 28 lbs (12.7 kg). For more information, see Appendix
A. “Specifications”.
1.2 LED INDICATORS
The following indicators are available on both the front and the rear panel.
• Power Indicator - Indicates power applied to instrument (green LED)
• Lock Indicator - Indicates normal operation (green LED)
• Alarm Indicator - Indicates unit alarm condition (red LED)
FIGURE 1-1: CsIII Front Panel.
1.3 REAR PANEL CONNECTIONS
• 5 MHz - BNC 5 MHz output (50Ω)
• 10 MHz - BNC 10 MHz output (50Ω)
• 10 MHz TTL - BNC 10 MHz TTL output (50Ω)
• 1PPS - BNC 1PPS output (50 Ω)
• SYNC - BNC input to synchronize 1PPS output to external source (50Ω)
• ALARM - DB9 Female, Form C relay
• RS-232 - DB9 Male DTE
FIGURE 1-2: CsIII Rear Panel.
CSIII (Model 4310B) User’s Guide
DS50003057A-page 10 2021 Microchip Technology Inc.
1.4 SOFTWARE
The CsIII’s principal user interface is the Microchip Monitor3 software. Monitor3 runs
on Microsoft Windows PCs (Windows 95 or newer) and connects to the CsIII with a
standard RS-232 null modem cable. In addition to providing comprehensive configura-
tion and control of the CsIII, Monitor3 provides periodic monitoring of the instrument’s
state-of-health parameters and optionally logs data to disk for subsequent analysis.
Monitor3 also provides logging of Alarm events to a log file for monitoring and trouble-
shooting purposes. Monitor3 is not essential to operate the CsIII if there is no need to
modify factory default parameters, adjust frequency or phase of outputs, or to monitor
internal health parameters. In some applications, users may develop their own inter-
face software for control and monitoring of the CsIII. For more information about the
RS-232 command structure and command list, see Appendix B. “Programmer’s
Guide”.
1.5 POWER
External power is supplied by a standard AC power cord or by a DC power connection.
The following is the power hierarchy.
• The unit operates from the AC power, if AC power is available.
• The unit operates from the DC input, If DC power is available and AC power is
not.
FIGURE 1-3: DC Input and Pin Assignments.
1.6 FACTORY CONFIGURATIONS
The CsIII is available with optional features that permit the system designer to specify
the most cost- effective solution for a particular application. Optional features include:
• E1 or T1 telecommunication outputs
For complete list of options, see Appendix A. “Specifications”.
Mating Connector:
ACS02E14S-5P-472
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