Spectracom - 8182 NETCLOCK/2 - Sonstiges
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Gerät:
8182 NETCLOCK/2
Datum:
2002
Kategorie:
Gruppe:
Untergruppe:
Informationen
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.
Reparatur und Bedienungsanleitung
Dokumenttyp:
Reparatur und Bedienungsanleitung
Seitenanzahl:
78
Größe:
1,8 MB
Sprache:
Englisch
Revision:
1.2
Dokument-ID:
Datum:
September 2002
Qualität:
Elektronisches Dokument, kein Scan, sehr gut lesbar.
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20. August 2017
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