User's Manual

User’s Manual of MGSD-10080F
255
Clock Time Properties Data Set
The clock time properties data set is defined in the IEEE 1588 Standard. The data set is both configurable and dynamic, i.e. the
parameters can be configured for a grandmaster. In a slave clock the parameters are overwritten by the grandmasters timing
properties. The parameters are not used in the current PTP implementation.
The valid values for the Time Source parameter are:
■ 16 (0x10) ATOMIC_CLOCK
■ 32 (0x20) GPS
■ 48 (0x30) TERRESTRIAL_RADIO
■ 64 (0x40) PTP
■ 80 (0x50) NTP
■ 96 (0x60) HAND_SET
■ 144 (0x90) OTHER
■ 160 (0xA0) INTERNAL_OSCILLATOR
Object Description
• UtcOffset
In systems whose epoch is UTC, it is the offset between TAI and UTC
• Valid
When true, the value of currentUtcOffset is valid
• leap59
When true, this field indicates that last minute of the current UTC day has only 59
seconds.
• leap61
When true, this field indicates that last minute of the current UTC day has 61
seconds.
• Time Trac
True if the timescale and the value of currentUtcOffset are traceable to a primary
reference.
• Freq Trac
True if the frequency determining the timescale is traceable to a primary reference.
• ptp Time Scale
True if the clock timescale of the grandmaster clock and false otherwise.
• Time Source
The source of time used by the grandmaster clock.
• Leap Pending
When true, there is a leap event pending at the date defined by leapDate.
• Leap Date
The date for which the leap will occur at the end of its last minute.
Date is represented as the number of days after 1970-01-01 (the latter represented
as 0).
• Leap Type
The type of leap event i.e. leap59 or leap61.