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Operating Manual Model 4065C Cesium Time And

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Operating Manual Model 4065C Cesium Time And OPERATING MANUAL MODEL 4065C CESIUM TIME AND FREQUENCY STANDARD Option 013, Rack Slides (FTS 6013) Option 063, DS1 Frequency Synthesizer (see Section 4) Option 064, CEPT Frequency Synthesizer (see Section 4) FTS Part Number: 11846-001 Revision: J Printed: 17 August 2000 Copyright 2000 DATUM INC. OPERATING MANUAL ADDENDUM Applicable to the following: MODEL MANUAL PART NUMBERS PRS50 N/A 11271 DCD N/A 08949 DCD N/A 08950 3310 N/A 11227 5045A N/A 08499 4065A 08518 08490 4040A/RS 11846 08832 Rev. - June 23, 1999 The serial number label applied at the factory to the units above contains more information that is necessary for the electronic identification of the unit. The unit identification (electronically stored within the unit) will be the last five digits of the serial number, which is physically marked on the unit’s label. The serial number label is a 10 digit, unique number YYWWXXXXXX Where: Y = Year W = Week of Year X = Sequential numbers Example: 9923000105 Serial number was assigned on the 23’rd week of 1999 (AKA Lot Date Code, LDC) and have a sequential number of 000105. When communicating with the unit the serial number in the example above is 00105. FTS 4065C Cesium Frequency Standard SECTION 1 GENERAL INFORMATION TABLE OF CONTENTS SECTION 1. GENERAL INFORMATION.....................................................................................................................................................1-1 1.1 INTRODUCTION .....................................................................................................................................................................................1-1 1.2 SUMMARY DESCRIPTION...................................................................................................................................................................1-1 1.3 INSTRUMENT IDENTIFICATION .......................................................................................................................................................1-2 1.4 STORAGE/SHELF LIFE, FTS 4065C....................................................................................................................................................1-10 1.4.1 Battery Storage............................................................................................................................................................................1-10 1.4.2 Cesium Beam Tube Vacuum and Standby Operation............................................................................................................1-11 1.4.3 Cesium Beam Tube Shelf Life....................................................................................................................................................1-11 1.5 PREPARATION FOR SHIPMENT.......................................................................................................................................................1-12 1.5.1 Hazardous Material (HAZMAT) Shipping Considerations .................................................................................................1-12 1.5.2 Packing Materials .......................................................................................................................................................................1-12 1.5.3 Shipping Procedure.....................................................................................................................................................................1-13 1.5.4 Placement Of Labels On Shipping Case...................................................................................................................................1-13 1.5.5 Shipment.......................................................................................................................................................................................1-13 1.6 INSTALLATION....................................................................................................................................................................................1-15 1.6.1 Environment.................................................................................................................................................................................1-15 1.6.2 Mounting......................................................................................................................................................................................1-15 1.6.3 Electrical Connections................................................................................................................................................................1-18 1.6.4 Chassis Rack Slides (Option 013) .............................................................................................................................................1-18 1.6.4.1 Mounting Procedure..................................................................................................................................................................1-18 LIST OF TABLES TABLE 1-1 SPECIFICATIONS, FTS 4065C...................................................................................................................................... 1-4 TABLE 1-2 RECOMMENDED TEST EQUIPMENT........................................................................................................................ 1-9 TABLE 1-3 BATTERY RECHARGE INTERVALS......................................................................................................................... 1-10 TABLE 1-4 LEFT BLANK INTENTIONALLY TABLE 1-5 CESIUM BEAM TUBE SHELF LIFE........................................................................................................................... 1-11 LIST OF FIGURES FIGURE 1-1 FTS 4065C........................................................................................................................................................................ 1-3 FIGURE 1-2 FREQUENCY STABILITY (5 second time constant, 2nd order loop).................................................................... 1-8 FIGURE 1-3 SNGLE SIDE-BAND PHASE NOISE SPECTRAL DENSITY.................................................................................... 1-8 FIGURE 1-4 ILLUSTRATION OF CESIUM SHIPPING CASE..................................................................................................... 1-14 FIGURE 1-5 LABEL INFORMATION ............................................................................................................................................. 1-14 FIGURE 1-6 INTERFACE CONTROL DRAWING......................................................................................................................... 1-16 FIGURE 1-7 RACK SLIDE ASSEMBLY DIAGRAM..................................................................................................................... 1-19 FTS 4065C Cesium Frequency Standard SECTION 2 OPERATION TABLE OF CONTENTS SECTION 2. OPERATION ..................................................................................................................................................................................2-1 2.1 INTRODUCTION .....................................................................................................................................................................................2-1 2.2 TURN-ON PROCEDURE.........................................................................................................................................................................2-1 2.3 KEYBOARD DESCRIPTION ..................................................................................................................................................................2-1 2.4 OPERATIONAL CHECK.........................................................................................................................................................................2-3 2.5 TURNING OFF...........................................................................................................................................................................................2-4 2.6 PULSE SYNCHRONIZATION AND TIME SETTING .......................................................................................................................2-8 2.6.1 1 PPS Synchronization..................................................................................................................................................................2-8 2.6.1.1 Left blank intentionally..............................................................................................................................................................2-8 2.6.1.2 Time Setting Procedure .............................................................................................................................................................2-8 2.6.1.3 1 Second Advance/Delay .........................................................................................................................................................2-9 2.6.1.4 1 PPM Reset................................................................................................................................................................................2-9 2.6.2 1 PPS Advance/Delay.................................................................................................................................................................2-10 2.6.2.1 1 PPS Advance/Delay Setting Procedure .............................................................................................................................2-11
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