Lantronix SISPM1040-3166-L Web User Guide Rev G PDF 14.13 MB - Page 383

Transition Networks SISPM1040-3xxx-L Web User Guide 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 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). Unicast Slave Configuration : When operating in IPv4 Unicast mode, the slave is configured up to 5 master IP addresses. The slave then requests Announce messages from all the configured masters. The slave uses the BMC algorithm to select one as master clock, the slave then requests Sync messages from the selected master. Duration : The number of seconds a master is requested to send Announce/Sync messages. The request is repeated from the slave each Duration/4 seconds. ip_address : The IPv4 Address of the Master clock grant : The granted repetition period for the sync message 33763 Rev. G https://www.transition.com Page 383 of 496