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3. STARTING THE CLOCK AND SETTING THE TIME
Since the network socket (RJ45) is connected to the clock, it is possible
to check that the clock is correctly connected to the network using the two LEDs located on either
side of the Ethernet socket.
- Constant green LED (left): connection established with a network,
- Flashing yellow LED (right): activity, sending and reception of data.
RJ45 Ethernet port: Single-sided (left) and Double-sided (right)
When powering up the clock, the hands are set at noon until a time signal is received.
After validation of the NTP synchronisation data, the clock sets itself automatically to the correct
time. The hands can start moving up to three minutes after setting the clock via the web server.
Time synchronisation is carried out via an NTP server (three modes are possible):
- Address(es) provided by DHCP server,
- Unicast NTP server (up to five different addresses),
- Multicast server (one address).
Factory settings may be restored via the web server.
In the event of an anomaly, the behaviour of your clock differs depending on the
model and whether or not it has a backup battery.
Mains NTP model without battery:
In the case of mains failure, the lighting (if this option has been selected) goes off and the hands stop
moving. When the power is restored, the hands are set at noon.
Then, the clock resynchronises itself and the lighting comes back on.
Mains NTP model with battery:
In the case of mains failure, the second hand stops moving and the lighting (if this option has been
selected) goes off. The hour and minute hands continue to operate for an hour, powered by the
battery. If the mains power supply is not restored, all the hands stop moving and are set at noon
when the power is restored. Then, the clock resynchronises itself and the lighting comes back on.
NTP PoE model without battery:
In the case of mains failure, the lighting (if this option has been selected) goes off. All the hands
continue to work since power is supplied to the card by the PoE network. However, if the PoE
network is also cut off, all the hands stop moving and are set at noon when the PoE power supply is
restored. Then, the clock resynchronises itself. The lighting comes back on when the mains power
supply is restored.
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