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Interconnect the cascaded clock using a twin-wire cable from the LINES
connector (P3+, P4- terminals) to the LINES connector (IN+, IN- terminals) of
the next clock.
In case the connection is correct and the input signal is at a high level, the
LED on the receiver and the green LED in the clock is flashing periodically
once a second, with 1 pulse left out at the 59th second.
3.7
Synchronization by NTP protocol
The NTP time synchronization can be used when the clock is connected to
Ethernet or WiFi network and the NTP server is accessible.
NTP protocol transfers data always UTC time coded, so it isn’t necessary to set
item
P3
manually. Time zone of synchronization source is internally set to value
0
in this case.
3.7.1
Synchronization by NTP multicast
The clock receives NTP multicast packets transmitted by NTP server in specified
time cycle. This type of synchronization can work even when clock has not been
assigned its own IP address and so it is suitable for controlling the large system
of the slave NTP clocks. Not applicable for WiFi clock.
Set item
P4
to value
9
According to chapter 6.3 set IP multicast address
For correct displaying of time and date, choose the desired time zone in the
item
P6
.
3.7.2
Synchronization by NTP unicast
The clock requests the exact time from the NTP server periodically in a
predefined interval. The clock must have been assigned its own IP address and
subnet mask (see chapter 5) in this case.
Set item
P4
to value
10
.
According to chapter 6.4 set IP address of NTP server and polling interval
For correct displaying time and date choose desired time zone in item
P6
.