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Charter 6 – Configuration
Time Settings - Configuration Summary
RT430/434
When the option NTP – Send local time is selected, the local time is sent through
NTP protocol. If this option is unselected, the UTC is sent.
If NTP function was ordered, it is activated by default operating at unicast
(client/server) mode.
Leap Second
The RT430/434 has built-in support for leap seconds, whenever indicated by the
GNSS (when operating as GNSS Clock) or by PTP Grandmaster (when operating as
PTP Slave).
In both cases, the LCD display will show 23:59:60 at the moment the second
increases (leap). In other words, while the last second of a normal day is 23:59:59, the
last second of a day with Leap Second is 23:59:60.
This can also be verified in the Web Interface, under the NTP information of the
Status section. The first field, "leap", indicates whether a leap second will be applied
at the end of the day. Its standard value is 0 (normal, leap second warning). This field
has the value 1 if the last minute of the day has 61 seconds; or the value 2 if the last
minute of the day has 59 seconds. So from the beginning of the day that will take
place the Leap Second field will have a value of 1 or 2; after the application of the
Leap Second this field value is back to its normal value 0.
Besides the Web Interface, leap second treatment is also stored on the equipment's
event log, and may be checked after the occurrence of a leap. The processing and
treatment of the Leap Second happens automatically and may not be disabled.
The table below presents all configurable time parameters and its possible values
and variables.
Table 10: Summary of configurable time parameters
h: from -12 to +14 (hours)
Timezone
m: 00 or 30 (minutes)
selected: DST enabled
DST
unselected: DST disabled
h: 00 up to 23 (hours)
m: 00 up to 60 (minutes)
first, second, third or last (week of the month)
Start/End
Sunday, Monday, Tuesday, Wednesday, Thursday, Friday or
Saturday (day of the week)
January, February, March, April, May, June, July, August,
September, October, November or December (month)
RT430/434
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