Novus NR2310D-ROG, Руководство пользователя

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USERS GUIDE NR2310D-ROG
REVISION N
DATE
031121
Page #: 7 www.novuspower.com
remote access and control via SNMP. There are four levels of optional reference
control for improved Allan Deviation performance and PPS accuracy and jitter. The
platform also supports redundant power sources AC or DC. The unit may optionally be
configured to lock to an external PPS signal.
The GNSS-Locked Reference
Novus offers four levels of GNSS locked reference performance:
HS1 digital loop using basic radio
HS2 digital loop, basic radio, adding picosecond timing
HS3 digital loop, advanced radio, picosecond timing and thermal stabilization,
Allan Deviation
HS4 digital loop, advanced radio, picosecond timing, thermal stabilization,
Allan Deviation, and vibration isolation.
Novus offers a range of locked reference performance options. Timing
information from the GNSS is very much a function of the receiver used, the
processing of the received timing information and how the timing source - be it
an OCXO, a Rubidium or some other device - is controlled. Environmental
factors such as temperature, shock and vibration all impact the overall system.
Over the years, Novus has invested heavily in the design of locked references
and can offer four levels of GNSS locking performance. Each level of
performance is discussed to allow the system designer to determine the level
of performance required versus system cost constraints.
Method Option
GNSS Locked
PLL
Pulse
Stabilization
Temperature
Control
ADEV (1s) ADEV (100s) ADEV (1ks) ADEV(100ks)
Analog Loop PLL Standard 3.00E-10 5.00E-10 8.00E-12
HS1 3.00E-12 2.00E-11 5.00E-12 5.00E-12
HS2 3.00E-12 1.00E-11 4.00E-12 9.00E-13
HS3 3.00E-12 7.00E-12 4.00E-12 7.00E-14
Digital Loop PLL