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Leader LT4670 - Selecting the Time Source

Leader LT4670
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7 REFERENCE CONFIG MENU
68
7.7 Selecting the Time Source
To select the time source to use with this instrument, follow the procedure below.
The date and time selected here is used for the log and the time code and for storing to a USB
memory device, for example.
Procedure
REFERENCE CONFIG > TIME SOURCE
Parameters
INTERNAL / LTC / LTC ST309 / VITC / VITC ST309 / NTP /
GNSS (SER01) / PTP1 (SER03) / PTP2 (SER03) / PTP1/2 (SER03)
Initial value
INTERNAL
The selectable TIME SOURCEs depend on the setting of REFERENCE SOURCE as shown below.
Table 7-1 | TIME SOURCE
REFERENCE SOURCE
TIME SOURCE
Description
INTERNAL
INTERNAL
The internal clock is used.
LTC
At power-on and when REFERENCE SOURCE or TIME SOURCE is
changed, the hours, minutes, and seconds are loaded from TIME
SOURCE once and are set in the internal clock. The internal year,
month, and day are used.
LTC ST309
At power-on and when REFERENCE SOURCE or TIME SOURCE is
changed, the year, month, and day, as well as the hours, minutes,
and seconds, are loaded from TIME SOURCE and are set in the
internal clock.
NTP (*1)
GNSS (SER01)
PTP1 (SER03)
PTP2 (SER03)
GENLOCK FMT-AUTO
GENLOCK FMT-MANUAL
INTERNAL
The internal clock is used. The internal clock is counted up in sync
with REFERENCE SOURCE.
LTC
At power-on and when REFERENCE SOURCE or TIME SOURCE is
changed, the hours, minutes, and seconds are loaded from TIME
SOURCE once and are set in the internal clock. The internal year,
month, and day are used. The internal clock is counted up in sync
with REFERENCE SOURCE.(*2)
VITC
LTC ST309
At power-on and when REFERENCE SOURCE or TIME SOURCE is
changed, the year, month, and day, as well as the hours, minutes,
and seconds, are loaded from TIME SOURCE and are set in the
internal clock. The internal clock is counted up in sync with
REFERENCE SOURCE.(*2)
VITC ST309
NTP (*1)
GNSS (SER01)
PTP1 (SER03)
PTP2 (SER03)
1 . T I M E S O U R C E
} I N T E R N A L

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