Spectracom Corporation
EPSILON CLOCK MODEL EC1S
EPSILON CLOCK User’s Manual
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Introduction
Introduction
Introduction
Introduction
The EPSILON CLOCK MODEL EC1S generates and distributes a highly accurate and stable
frequency source disciplined using GPS input. The clock has autonomous control of GPS
system integrity features (TRAIM) and rejects defective satellites.
The time reference thus obtained is processed by efficient algorithms that control the built-in
oscillator, which generates inner frequency and time signals. The clock continues to distribute
time and frequency signals even if the GPS input signal is lost. Furthermore, “learning” from its
behavior in different situations (effects attributed to aging and to temperature variations) while
the GPS reference signal is present, the frequency driver improves on the accuracy of time and
frequency distribution (when the GPS signal is lost).
The majority of the EPSILON CLOCK MODEL EC1S functions are software controlled. At start-
up, the clock carries out a series of automatic tests, including hardware tests and verification of
the built-in oscillator stability, before making an initial coarse adjustment to the distributed
frequency. The clock has a serial remote control interface that is used to input all the queries
and commands described in this manual.
THE EPSILON CLOCK MODEL EC1S IS FACTORY CONFIGURED TO ASSUME
AUTOMATIC START-UP AND NORMAL OPERATION WITHOUT USING THE REMOTE
CONTROL INTERFACE.
