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11.1 Time synchronisation menu
To configure the time synchronisation of the master clock, validate the option in the technician
menu with the
The following screen is displayed :
Select the time synchronisation mode from the following
options:
Radio DCF,
Minute radio (mode used for countries receiving the DCF
radio signal but for which the time is different from Paris/Berlin [only minute is synchronised, date
and hour must be set manually]),
EXTERNAL (mode used for synchronisation from a Sigma "Master" which transmits a GPS
signal simulation from an ASCII extension card),
NONE: if you choose to have no synchronisation, the radio pictogram is not displayed.
GPS,
NTP, In the case of redundancy in multicast, configure the emission period (poll) at a ratio
of 1: 2 between the servers (eg. main transmitter: 32s, secondary transmitter: 64s). Number
of simultaneous requests as possible: 500 unicast requests per second (driving an unlimited
amount of clocks).
Auto (the master clock will select the best time source automatically; in which case, several
time sources can be connected to the master clock; it will change time source in case of
failure of one of them; the priority is given at first to NTP then AFNOR, GPS, DCF).
Remark : all the synchronisation options are proposed without checking that an antenna is
connected (by default, the configuration is DCF mode).
In case of synchronisation input failure, an alarm message is sent.
This alarm is triggered after 3 hours without synchronisation in NTP or Auto mode, after 24
hours in the other synchronisation modes.
Select the synchronisation mode with the
The following screen is displayed if "Prog" mode has been validated in the customer menu (see
"Time and date", page 18) :
This menu can be used to program non-standard winter/
summer time changeovers.
key.
Time synchro
Time outputs
Synchro:EXTERNAL
and
keys and validate with the
Prog. time change :Yes ú
ok
õ
ú
ok
key.
ok
27
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