Spectracom 8197 User manual

MODEL 8197

GPS AGELESSMASTER OSCILLATOR

INSTRUCTION MANUAL

SPECTRACOM CORPORATION

95 Methodist Hill Drive, Suite 500

Rochester, NY 14623

PHONE 585-321-5800

FAX 585-321-5219

REVISIONS, IF ANY, ARE LOCATED AT THE END OF THE MANUAL

MANUAL REVISION A

December 2003

5-Year Warranty

SPECTRACOM 95 Methodist Hill Drive Suite 500 Rochester, NY 14623

+1.585.321.5800 FAX: +1.585.321.5218 www.spectracomcorp.com sa[email protected]

LIMITED WARRANTY________________________________

Spectracom warrants each new product manufactured and sold by

it to be free from defects in material, workmanship, and

construction, except for batteries, fuses, or other material normally

consumed in operation that may be contained therein, for five

years after shipment to the original purchaser (which period is

referred to as the "warranty period"). This warranty shall not

apply if the product is used contrary to the instructions in its

manual or is otherwise subjected to misuse, abnormal operations,

accident, lightning or transient surge, repairs or modifications not

performed by Spectracom.

The GPS receiver is warranted for one year from date of shipment

and subject to the exceptions listed above. The power adaptor, if

supplied, is warranted for one year from date of shipment and

subject to the exceptions listed above.

The Rubidium oscillator, if supplied, is warranted for two years

from date of shipment and subject to the exceptions listed above.

All other items and pieces of equipment not specified above,

including the antenna unit, antenna surge suppressor and antenna

pre-amplifier are warranted for 5 years, subject to the exceptions

listed above.

WARRANTY CLAIMS________________________________

Spectracom's obligation under this warranty is limited to in-factory

service and repair, at Spectracom's option, of the product or the

component thereof, which is found to be defective. If in

Spectracom's judgment the defective condition in a Spectracom

product is for a cause listed above for which Spectracom is not

responsible, Spectracom will make the repairs or replacement of

components and charge its then current price, which buyer agrees

to pay.

Spectracom shall not have any warranty obligations if the

procedure for warranty claims is not followed. Users must notify

Spectracom of the claim with full information as to the claimed

defect. Spectracom products shall not be returned unless a return

authorization number is issued by Spectracom. Spectracom

products must be returned with the description of the claimed

defect and identification of the individual to be contacted if

additional information is needed. Spectracom products must be

returned properly packed with transportation charges prepaid.

EXCEPT FOR THE LIMITED WARRANTY STATED ABOVE,

SPECTRACOM DISCLAIMS ALL WARRANTIES OF ANY KIND

WITH REGARD TO SPECTRACOM PRODUCTS OR OTHER

MATERIALS PROVIDED BY SPECTRACOM, INCLUDING

WITHOUT LIMITATION ANY IMPLIED WARRANTY OR

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Spectracom shall have no liability or responsibility to the original

customer or any other party with respect to any liability, loss, or

damage caused directly or indirectly by an Spectracom product,

material, or software sold or provided by Spectracom,

replacement parts or units, or services provided, including but not

limited to any interruption of service, excess charges resulting from

malfunctions of hardware or software, loss of business or

anticipatory profits resulting from the use or operation of the

Spectracom product or software, whatsoever or howsoever

caused. In no event shall Spectracom be liable for any direct,

indirect, special or consequential damages whether the claims are

grounded in contract, tort (including negligence), or strict liability.

EXTENDED WARRANTY COVERAGE___________________

Extended warranties can be purchased for additional periods

beyond the standard five-year warranty. Contact Spectracom no

later than the last year of the standard five-year warranty for

extended coverage.

TABLE OF CONTENTS

SECTION 1 GENERAL INFORMATION

1.0 INTRODUCTION .................................................................................................................... 1-1

1.1 FEATURES ............................................................................................................................ 1-2

1.2 WARRANTY INFORMATION AND PRODUCT SUPPORT.................................................. 1-2

1.3 MANUAL ERRATA AND SPECIAL DOCUMENTATION .....................................................1-3

1.4 UNPACKING.......................................................................................................................... 1-3

1.5 SPECIFICATIONS ................................................................................................................. 1-4

1.5.1 Receiver ....................................................................................................................1-4

1.5.2 Standard Frequency Outputs .................................................................................... 1-4

1.5.3 Frequency Standard Stability .................................................................................... 1-5

1.5.4 1 PPS Output.............................................................................................................1-5

1.5.5 1544 kHz Timing Outputs..........................................................................................1-6

1.5.6 2048 kHz Timing Outputs..........................................................................................1-6

1.5.7 Data Clock Timing Outputs ....................................................................................... 1-7

1.5.8 Data Sync Timing Outputs ........................................................................................ 1-7

1.5.9 Indicator Lamps .........................................................................................................1-8

1.5.10 Alarms .......................................................................................................................1-8

1.5.10.1 Alarms Classifications ................................................................................. 1-9

1.5.10.2 Tracking Alarm Classifications .................................................................1-10

1.5.10.3 Alarm Interface .........................................................................................1-10

1.5.11 Communication Ports ..............................................................................................1-11

1.5.11.1 RS-232 Com.............................................................................................. 1-11

1.5.11.2 RS-485 Com.............................................................................................. 1-11

1.5.12 Input Power .............................................................................................................1-12

1.5.13 Mechanical ..............................................................................................................1-12

1.5.14 Environmental..........................................................................................................1-13

1.5.15 Model 8225 GPS Antenna Specifications ...............................................................1-13

1.5.15.1 Electrical Specifications.............................................................................1-13

1.5.15.2 Mechanical Specifications .........................................................................1-13

1.5.16 Model 8226 Impulse Suppressor.............................................................................1-13

1.5.17 Model 8227 Inline Amplifier .....................................................................................1-14

SECTION 2 INSTALLATION

2.0 INTRODUCTION .................................................................................................................... 2-1

2.1 MODEL 8225 GPS ANTENNA ..............................................................................................2-1

2.1.1 Antenna Installation ...................................................................................................2-1

2.2 ANTENNA CABLE..................................................................................................................2-2

2.2.1 Cable Lengths ...........................................................................................................2-3

2.3 MODEL 8226 IMPULSE SUPPRESSOR .............................................................................. 2-3

2.4 MODEL 8227 GPS INLINE AMPLIFIER................................................................................ 2-4

2.5 MODEL 8197 PREPARATION FOR USE ............................................................................. 2-6

2.5.1 Antenna Connection.................................................................................................. 2-6

2.5.2 AC Power ..................................................................................................................2-6

2.5.3 DC Power ..................................................................................................................2-6

2.5.4 Chassis Ground.........................................................................................................2-7

2.6 INITIAL OPERATION............................................................................................................. 2-7

2.7 QUALIFYING THE INSTALLATION...................................................................................... 2-8

2.7.1 GPS Signal Status ....................................................................................................2-8

2.7.2 Tracking Histogram .................................................................................................2-10

2.8 RECEPTION TROUBLESHOOTING................................................................................... 2-11

2.8.1 No Reception .........................................................................................................2-11

2.8.2 Low GPS Quality .....................................................................................................2-12

2.9 FACTORY CONFIGURATION............................................................................................. 2-12

SECTION 3 OPERATION

3.0 INTRODUCTION .................................................................................................................... 3-1

3.1 FRONT PANEL FUNCTIONS................................................................................................ 3-1

3.1.1 Status Lamps.............................................................................................................3-1

3.1.1.1 Power .........................................................................................................3-1

3.1.1.2 Tracking GPS ............................................................................................. 3-1

3.1.1.3 Oscillator Locked .......................................................................................3-1

3.1.2 Alarm Lamps .............................................................................................................3-1

3.1.2.1 Major Alarm Lamp ......................................................................................3-2

3.1.2.2 Minor Alarm Lamp ......................................................................................3-2

3.1.3 Battery Lamps (Option 02 only)..................................................................................3-4

3.1.3.1 Ready Lamp................................................................................................ 3-4

3.1.3.2 Charging Lamp ...........................................................................................3-4

3.1.3.3 Replace Lamp.............................................................................................3-4

3.1.4 RS-232 Com..............................................................................................................3-5

3.1.5 10-MHz Output ..........................................................................................................3-6

3.1.6 1PPS Output..............................................................................................................3-6

3.2 REAR PANEL FUNCTIONS .................................................................................................. 3-6

3.2.1 GPS Antenna.............................................................................................................3-6

3.2.2 Frequency Outputs .................................................................................................... 3-6

3.2.2.1 Signature Control........................................................................................3-6

3.2.2.2 Output Options ...........................................................................................3-8

3.2.3 1544 kHz and 2048 kHz Timing Outputs ................................................................. 3-8

3.2.3.1 RS-485 Outputs ..........................................................................................3-9

3.2.3.2 Major Alarm Contacts ...............................................................................3-10

3.2.4 Data Clock Timing Outputs .....................................................................................3-10

3.2.4.1 RS-485 Outputs ........................................................................................3-11

3.2.4.2 Major Alarm Relay ....................................................................................3-12

3.2.5 Set Up Switches ......................................................................................................3-12

3.2.5.1 RS-485 Address .......................................................................................3-12

3.2.5.2 RS-485 Baud Rate....................................................................................3-13

3.2.5.3 Spares.......................................................................................................3-13

3.2.5.4 Termination ...............................................................................................3-13

3.2.6 RS-485 COM ...........................................................................................................3-14

3.2.7 Data Sync Timing Outputs ...................................................................................... 3-15

3.2.7.1 RS-485 Outputs ........................................................................................3-17

3.2.7.2 Major Alarm Contacts ...............................................................................3-17

3.2.8 Alarm Outputs..........................................................................................................3-18

3.2.9 DC Power ................................................................................................................3-19

3.2.10 AC Power ................................................................................................................3-20

3.2.11 Cooling Fan .............................................................................................................3-21

3.2.12 Chassis Ground.......................................................................................................3-21

3.2.13 Battery Disconnect Switch.......................................................................................3-21

SECTION 4 SOFTWARE COMMANDS

4.0 INTRODUCTION .................................................................................................................... 4-1

4.1 RS-232 COMMANDS............................................................................................................. 4-1

4.2 RS-232 COMMAND DESCRIPTIONS ................................................................................... 4-2

4.2.1 ANTENNA CABLE DELAY........................................................................................4-3

4.2.2 ALARM TIMEOUTS...................................................................................................4-4

4.2.3 CLEAR ALARM ......................................................................................................... 4-5

4.2.4 CLEAR BATTERY ALARM ....................................................................................... 4-6

4.2.5 CONFIGURATION ....................................................................................................4-7

4.2.6 DISPLAY ALARM LOG ............................................................................................. 4-8

4.2.7 DATE .........................................................................................................................4-9

4.2.8 DISPLAY FREQUENCY MEASUREMENT ............................................................4-10

4.2.9 DISPLAY OSCILLATOR LOG.................................................................................4-11

4.2.10 DISPLAY TRACKING HISTOGRAM....................................................................... 4-13

4.2.11 EVENT OUTPUT..................................................................................................... 4-15

4.2.12 GPS SIGNAL STATUS............................................................................................ 4-16

4.2.13 HELP .......................................................................................................................4-18

4.2.14 LOCATION ..............................................................................................................4-19

4.2.15 SIGNATURE CONTROL.........................................................................................4-20

4.2.16 SET MODE..............................................................................................................4-21

4.2.17 STATUS INFORMATION ........................................................................................4-22

4.2.18 TIME ........................................................................................................................4-23

4.2.19 TEST MODE............................................................................................................4-24

4.2.20 TIME ZONE OFFSET.............................................................................................. 4-25

4.2.21 UTC TO GPS TIME .................................................................................................4-26

4.2.22 VERSION ................................................................................................................4-27

4.2.23 1PPS OFFSET ........................................................................................................4-28

4.3 RS-485 COMMAND STRUCTURE.....................................................................................4-29

4.4 RS-485 COMMAND DESCRIPTIONS .................................................................................4-30

4.4.1 ANTENNA CABLE DELAY......................................................................................4-30

4.4.2 ALARM EVENT HISTORY ......................................................................................4-31

4.4.3 ALARM STATUS .....................................................................................................4-31

4.4.4 ALARM TIMEOUTS.................................................................................................4-31

4.4.5 CLEAR ALARM HISTORY ...................................................................................... 4-31

4.4.6 GPS SIGNAL STATUS............................................................................................4-32

4.4.7 LOCATION ..............................................................................................................4-33

4.4.8 SIGNAL SELECTION ..............................................................................................4-33

4.4.9 SHORT STATUS..................................................................................................... 4-33

4.4.10 TIME AND DATE..................................................................................................... 4-34

4.4.11 TIME ZONE OFFSET.............................................................................................. 4-34

4.4.12 WHO........................................................................................................................4-34

4.4.13 1PPS OFFSET ........................................................................................................4-34

SECTION 5 OPTIONS AND ACCESSORIES

5.0 INTRODUCTION .................................................................................................................... 5-1

5.1 OPTION 02 INTERNAL BATTERY BACKUP....................................................................... 5-2

5.1.1 Battery Lamps ...........................................................................................................5-2

5.1.2 Option 02 Specifications............................................................................................5-3

5.2 OPTION 03 BUILT IN DISTRIBUTION AMPLIFIER ............................................................. 5-3

5.2.1 System Components ................................................................................................. 5-3

5.2.1.1 Model 8140T Line Taps...........................................................................5-3

5.2.1.2 Model 8140VT VersaTap Frequency Synthesizer ..................................5-4

5.2.1.3 Model 8140TA Line Extender Amplifier................................................... 5-4

5.2.1.4 Model 8140MT MultiTap..........................................................................5-5

5.2.2 Design of Distribution Networks ................................................................................5-6

5.3 OPTION 06 - 12.8-MHZ OUTPUTS ....................................................................................... 5-8

5.4 OPTION 07 - 5-MHZ OUTPUTS ............................................................................................ 5-9

5.5 OPTION 08 - 1-MHZ OUTPUTS ............................................................................................ 5-9

5.6 OPTION 11 - RACK MOUNT SLIDES .................................................................................. 5-9

5.7 OPTION 14 - CTCSS OUTPUTS ........................................................................................ 5-10

5.7.1 Data Sync Timing Outputs ...................................................................................... 5-10

5.7.2 Data Sync Alarm Contacts ...................................................................................... 5-12

5.7.3 RS-485 Timing Signals............................................................................................5-13

5.7.4 CTCSS Configuration ..............................................................................................5-13

SECTION 6 SERVICE INFORMATION

6.0 INTRODUCTION .................................................................................................................... 6-1

6.1 BATTERY REPLACEMENT .................................................................................................. 6-1

6.1.1 Battery Replacement Instructions ............................................................................. 6-1

TABLES

TABLE 1-1 MODEL 8197 ANCILLARY KITS .....................................................................................1-3

TABLE 2-1 DC POWER CONFIGURATIONS ...................................................................................2-6

TABLE 2-2 TYPICAL ANTENNA CABLE RESISTANCE VALUES..................................................2-11

TABLE 2-3 DEFAULT SETTINGS....................................................................................................2-13

TABLE 3-1 RS-232 COMM PIN ASSIGNMENTS ..............................................................................3-5

TABLE 3-2 TIMING OUTPUT PIN ASSIGNMENTS ..........................................................................3-9

TABLE 3-3 DATA CLOCK PIN ASSIGNMENTS..............................................................................3-11

TABLE 3-4 ADDRESS SELECTION ................................................................................................3-13

TABLE 3-5 RS-485 COM PIN ASSIGNMENTS ...............................................................................3-14

TABLE 3-6 DATA SYNC PIN ASSIGNMENTS ................................................................................3-16

TABLE 3-7 ALARM OPERATION ....................................................................................................3-19

TABLE 3-8 DC POWER CONFIGURATIONS .................................................................................3-19

TABLE 4-1 ALPHABETICAL LIST OF RS-232 COMMANDS............................................................4-2

TABLE 4-2 COMMON OFFSET VALUES........................................................................................4-25

TABLE 4-3 RS-485 COMMAND PROTOCOL .................................................................................4-29

TABLE 4-4 ALPHABETICAL LIST OF RS-485 COMMANDS..........................................................4-30

TABLE 5-1 LINE TAP LOADS............................................................................................................5-6

TABLE 5-2 OPTION 11 CHECKLIST .................................................................................................5-9

TABLE 5-3 OPTION 14 DATA SYNC PIN ASSIGNMENTS ............................................................5-11

TABLE 5-4 CTCSS #1 AND CTCSS #2 FREQUENCY LIST...........................................................5-12

TABLE 5-5 CTCSS TONE LIST .......................................................................................................5-14

ILLUSTRATIONS

FIGURE 1-1 MODEL 8197 AGELESS MASTER OSCILLATOR .........................................................1-1

FIGURE 2-1 ANTENNA INSTALLATION .............................................................................................2-2

FIGURE 2-2 MODEL 8226 IMPULSE SUPPRESSOR ........................................................................ 2-3

FIGURE 2-3 CONNECTOR ASSEMBLY INSTRUCTIONS .................................................................2-4

FIGURE 2-4 MODEL 8227 INLINE AMPLIFIER................................................................................... 2-5

FIGURE 2-5 CABLE GUIDELINES ......................................................................................................2-5

FIGURE 2-6 DC POWER CONNECTOR ............................................................................................. 2-7

FIGURE 3-1 MODEL 8197 FRONT PANEL .........................................................................................3-3

FIGURE 3-2 RS-232 COM PIN NUMBERING .....................................................................................3-5

FIGURE 3-3 MODEL 8197 REAR PANEL ...........................................................................................3-7

FIGURE 3-4 TIMING OUTPUT CONNECTOR ....................................................................................3-8

FIGURE 3-5 RS-485 OUTPUT .............................................................................................................3-9

FIGURE 3-6 SINGLE-ENDED CONNECTION...................................................................................3-10

FIGURE 3-7 DATA CLOCK CONNECTOR........................................................................................3-10

FIGURE 3-8 RS-485 LINE DRIVER ...................................................................................................3-12

FIGURE 3-9 COM CONNECTOR ......................................................................................................3-14

FIGURE 3-10 RS-485 CONNECTION..................................................................................................3-15

FIGURE 3-11 DATA SYNC CONNECTOR .......................................................................................... 3-15

FIGURE 3-12 DATA SYNC DRIVERS ................................................................................................. 3-17

FIGURE 3-13 ALARM OUTPUTS TERMINAL BLOCK........................................................................3-18

FIGURE 3-14 DC POWER CONNECTOR ........................................................................................... 3-20

FIGURE 3-15 AC POWER MODULE ................................................................................................... 3-21

FIGURE 4-1 COMMAND STRUCTURE...............................................................................................4-1

FIGURE 5-1 LINE TAP NUMBER AND DISTANCE CHART - OPTION 03......................................... 5-7

FIGURE 5-2 TYPICAL INTERCONNECTION DIAGRAM ....................................................................5-8

FIGURE 5-3 SLIDES, OPTION 11 .....................................................................................................5-10

FIGURE 5-4 DATA SYNC CONNECTOR ..........................................................................................5-11

FIGURE 5-5 DATA SYNC DRIVERS .................................................................................................5-13

MODEL 8197

SECTION 1

GENERAL INFORMATION

1.0 INTRODUCTION

1.1 FEATURES

1.2 WARRANTY INFORMATION AND PRODUCT SUPPORT

1.3 MANUAL ERRATA AND SPECIAL DOCUMENTATION

1.4 UNPACKING

1.5 SPECIFICATIONS

Page 1-1 8197 Instruction Manual

GENERAL INFORMATION

1.0 INTRODUCTION

The patented Spectracom Model 8197 AgelessMaster Oscillator*, shown in

Figure 1-1, is a disciplined Rubidium frequency source. Its outputs are locked to

the United States Naval Observatory via the NAVSTAR Global Positioning

System (GPS). Spectracom’s field-proven AgelessOscillator technology

provides continual automatic frequency control. A long-term averaging algorithm

compensates for oscillator aging and temperature drift.

The Model 8197 is ideally suited as a site master oscillator for communication

systems. Typical transmitter applications include land mobile simulcast, SMR

(Specialized Mobile Radio), paging simulcast, satellite/microwave

communications links, cellular telephone, and broadcast television.

FIGURE 1-1 MODEL 8197 AGELESS MASTER OSCILLATOR

*PATENT NO. 4,525,685

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