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V - Types of time synchronisation
Independent mode “Ind”
•
The clock is totally independent; it receives the time information from its own time base.
FI or DCF radio-synchronised mode “rAd”
•
The clock is independent; it receives the time information from its time base which is corrected
in the event of deviation by comparing it with the signal from the FI or DCF transmitter.
•
Radio synchronisation enables the time to be displayed with absolute precision.
GPS mode “GPS”
•
The clock is independent; it receives the time information from its time base which is corrected
in the event of deviation by comparing it with the signal from the GPS transmitter.
•
Radio synchronisation enables the time to be displayed with absolute precision.
AFNOR mode “AFn”
•
Coded time distribution consists in transmitting a complete time message every second: setting
of these receivers to the right time is carried out automatically and rapidly on connection on the
clock line.
•
The AFNOR code does not transmit interference and is not affected by other electrical
interference.
24V minute impulse receiver mode “Min”
•
The receiver clocks are connected to a distribution line and activated by means of electrical
impulses transmitted every minute by the mother clock.
Series ½ minute impulse receiver mode “1:2M”
•
The receiver clocks are connected in series to a distribution line and activated by means of
electrical impulses transmitted every ½ minute by the mother clock.
DHF mode “dHF”
•
The clock is radio-synchronised by a DHF radio transmitter.
NTP mode “ntP”
•
An SNTP server periodically transmits the UTC time on the Ethernet network.
The receiver clocks automatically set themselves to the right time after receiving
several coherent time messages and applying the time zone configuration.
The NTP server must have a transmission (Poll) period of less than 128 seconds.
