NeoClock
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1. FOREWORD
NeoClock is a radio controlled clock that can be used to synchronise various
sorts of systems requiring precise time information (PCs, automatons,
display boards ...).
NeoClock is available in two versions:
DCF Version:
This version incorporates a radio receiver that picks up the
DCF77 signal broadcast by the Mainflingen transmitter located near Frankfurt
(Germany). The transmitter broadcasts long waves at a frequency of 77.5
kHz. Its waves can be picked up as far as 1,000 to 1,500 km away from
Frankfurt.
France Inter Version:
This version incorporates a radio receiver that picks
up the France Inter signal broadcast by the Allouis transmitter located near
Bourges (France). This transmitter broadcasts long waves at a frequency of
162 kHz. Its waves can be picked up as far as 2,500 to 3,500 km away from
Allouis.
NeoClock consists of a plastic case (desk version in a blue ABS casing or
industrial version in a polycarbonate IP67 casing) equipped with a 5-meter
serial cable. The cable features a 9 points SUB-D female connector that can
be directly connected to the standard serial port of a PC.
Inside the case, an original 2-antenna device guarantees the best reception
of the signal whatever the geographical situation of the case in relation to the
transmitter.
An autonomous clock with a temperature-compensated crystal oscillator
makes possible for NeoClock to deliver extremely precise time information
even in the event of a disturbance in the reference radio signal.
Two control LEDs allow you to check if the product works correctly and if the
radio signal is correctly received.
The use of CMOS-technology components makes it possible to power the
system through the V24/RS232 serial link of a PC compatible (5-wire link).