Informations sur l'appareil:

Spectracom 8182 NETCLOCK/2 Autre
Fabricant:
Spectracom
Modèle: 8182 NETCLOCK/2
Date: 2002
Catégorie: Radio et des communications
Groupe: Autre
Description: WWVB SYNCHRONIZED MASTER CLOCK
Information:
                                    The National Institute of Standards and Technology (NIST)
broadcasts a time and
frequency standard on Station WWVB from Fort Collins,
Colorado. WWVB transmits60-kHz carrier frequency derived
from the National atomic time standard. Time code is
added to the broadcast by reducing carrier power 10 dB
once-per-second for fixed
intervals of time. The WWVB code contains information on the
current year, day-of-
year, and time reflecting Coordinated Universal Time (UTC).
Indicators warning of
Daylight Saving Time, leap second, and leap year are also
encoded into the WWVB
transmission. A complete description of WWVB is found in
Appendix A of this manual.
The Spectracom NetClock/2, shown in Figure 1-1, receives and
demodulates the WWVB
signal. Once the signal is decoded, the NetClock/2
automatically sets and provides
accurate and traceable time data outputs. The outputs may be
used to synchronize
computer networks, dispatch consoles, voice loggers and
event loggers.

FEATURES
The Spectracom Model 8182 NetClock/2 offers the following
features:
NENA Compliant: The Model 8182 conforms to the National
Emergency Number
Association, NENA 04-002 PSAP Master Clock Standard.
Traceability: Received WWVB broadcast provides direct
traceability to the National
Institute of Standards and Technology.
Automatic Operation: Automatically decodes and synchronizes
to the WWVB time
code and adjusts for Daylight Saving Time, Leap Year, and
Leap Second corrections.
Timing Outputs: The NetClock/2 timing outputs are used to
synchronize voice
recorders, ANI/ALI, consoles, CADs and other devices found
in the Dispatch Center.
Each NetClock/2 includes an RS-232 interrogation port,
RS-232 and RS-485 broadcast
port, and both amplitude modulated and pulse width coded
IRIG outputs.

Ces manuels sont disponibles pour les équipements ci-dessus :

Spectracom -- 8182 NETCLOCK/2 -- Service et Manuel de l'utilisateur
Nom du fichier: Spectracom-9381-Manual-Page-1-Picture
Type de document: Service et Manuel de l'utilisateur
Nombre de pages: 78
Taille du fichier: 1.76 Mbytes (1841245 Bytes)
langue: Anglais
Révision: 1.2
Document ID/Numéro:
Date: 01 septembre 2002
qualité: Électronique de documents, numérisation sans, bien lisible.
Chargé sur:
MD5: 53ffbc1c7f1dffdbc3a92da84e801990
Téléchargements: 15 depuis 20 août 2017
Information:
SECTION1.0
 GENERAL INFORMATION
 PAGE
INTRODUCTION
.......................................................................................
1-1
FEATURES
.................................................................................................
1-2
WARRANTY INFORMATION AND PRODUCT SUPPORT.................. 1-2
MANUAL ERRATA AND SPECIAL DOCUMENTATION .................... 1-3
UNPACKING..............................................................................................
1-3
SPECIFICATIONS......................................................................................1.5.0
1-3
Receiver
.......................................................................................
1-3
Status Indicators and Alarm
Outputs........................................... 1-4
Manual Controls
..........................................................................
1-4
Time Data Formats
......................................................................
1-5
Data Output Specifications
.......................................................... 1-5
Serial Communication
Port..........................................................
1-6
Remote
Output.............................................................................
1-6
AM IRIG
Output..........................................................................
1-6
IRIG TTL
Output.........................................................................
1-6
1PPS
Output.................................................................................
1-7
Mechanical and
Installation.........................................................
1-7
FCC Compliance
.........................................................................
1-7
Model 8219 Passive Loop
Antenna............................................. 1-7
Model 8207
Preamplifier.............................................................
1-8
SECTION 2
 INSTALLATION
 PAGE
2.0
2.1
INTRODUCTION
.......................................................................................
2-1
WWVB ANTENNA SYSTEM
...................................................................
2-1
2.1.1
 Antenna Location
 2-2
2.1.2
 Antenna Installation
 2-2
2.1.3
 Antenna Cable
 2-3
2.1.4
 Antenna Surge Suppressor
 2-5
2.2
 PREPARATION FOR
USE.........................................................................
2-6
2.2.1
 Propagation Path Delay
 2-6
2.2.2
 UTC or Local Time Selection
 2-8
2.2.3
 Automatic Daylight Saving Time
 2-8
2.2.4
 12- or 24-hour Display Time
 2-8
2.2.5
 Data Format Selection
 2-8
2.2.6
 Baud Rate Selection
 2-9
2.2.7
 IRIG Output Configuration
 2-10
2.2.8
 Chassis Ground
 2-10
2.2.9
 AC Input
 2-10
2.3
2.4
OPTION 1, RACK MOUNT KIT
...............................................................
2-11
INITIAL OPERATION
...............................................................................
2-12
SECTION 3
 OPERATION
 PAGE
3.0
 INTRODUCTION
.......................................................................................
3-1
3.1
 FRONT PANEL FUNCTIONS
...................................................................
3-1
3.1.1
 Display
 3-1
3.1.2
 Status Indicators
 3-2
3.2
 REAR PANEL FUNCTIONS
.....................................................................
3-3
3.2.1
 AGC Test Points
 3-3
3.2.2
 Antenna
 3-3
3.2.3
 Alarm Outputs
 3-4
3.2.4
 AC Power
 3-5
3.2.5
 Chassis Ground
 3-6
3.2.6
 IRIG TTL Output
 3-7
3.2.7
 1-PPS Output
 3-7
3.2.8
 IRIG AM Output
 3-7
3.2.9
 Serial Comm
 3-8
3.2.10
 Remote Output
 3-9
3.33.4
3.5
SWITCH FUNCTIONS
.................................................................................
3-10
3.3.1
 Path Delay Switches
 3-11
3.3.2
 Time Zone Switches
 3-11
3.3.3
 Baud Rate Switch
 3-11
3.3.4
 IRIG Format Switch
 3-11
3.3.5
 Dip Switch Functions
 3-13
3.3.6
 Data Format Switch
 3-15
USING THE SERIAL COMM
PORT......................................................... 3-16
3.4.1
 General Guidelines
 3-16
3.4.2
 Time Data Formats
 3-16
3.4.2.1
 Format 0
 3-17
3.4.2.2
 Format 1
 3-18
3.4.2.3
 Format 2
 3-19
3.4.3
 RS-232 Commands and Outputs
 3-20
3.4.3.1
 Time Command
 3-21
3.4.3.2
 Version Command
 3-21
3.4.3.3
 Switch Setting Command
 3-21
3.4.3.4
 Signal Quality Log Command
 3-22
3.4.3.5
 Clear Buffer Command
 3-23
3.4.3.6
 Manual Set Command
 3-24
REMOTE OUTPUT
USAGE......................................................................
3-24
3.5.1 RS-485 Guidelines
 3-25
3.5.2 Connection Method
 3-2
SECTION 4
 SERVICE INFORMATION
 PAGE
4.0
 INTRODUCTION
.......................................................................................
4-1
4.1
 SIGNAL STRENGTH MEASUREMENT
................................................. 4-1
4.2
 RECEPTION PROBLEMS
.........................................................................
4-2
4.2.1
 Antenna Lamp
 4-2
4.2.2
 Signal Lamp
 4-2
4.2.3
 Time Sync Lamp
 4-3
4.3
 VCXO
ADJUSTMENT...............................................................................
4-4
4.3.1
 VCXO Adjustment Procedure
 4-4
APPENDIX A WWVB INFORMATION
APPENDIX B IRIG CODE DESCRIPTION
 PAGE
B.0
 INTRODUCTION
.......................................................................................
B-1
B.1
 IRIG B
OUTPUT.........................................................................................
B-1
B.1.1
 IRIG B General Description
 B-1
B.2
 IRIG E
OUTPUT.........................................................................................
B-5
B.2.1
 IRIG E General Description
 B-5
Spectracom-9381-Manual-Page-1-Picture
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