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7.2.2.4 Time tab
The Time tab displays parameters for the time that is currently distributed in the PTP network or
domain in which the OTMC 100 participates (e.g., epoch related parameters like UTC offset or leap
second information), and parameters of the time source currently used. If the OTMC 100 is the current
grandmaster of the network, the data in this tab represent its own time source. If the OTMC 100 is in
passive state, this tab lists the parameter values of the current grandmaster clock in the network or
domain. The data listed here represents the Time Properties Data set specified in IEEE 1588-2008,
clause 8.2.4.
UTC offset
UTC offset valid
Leap 59
Leap 61
Time traceable
Frequency traceable
PTP time scale
Time source
Displays the UTC offset. In PTP systems whose epoch is the PTP
epoch, the value is the offset between TAI and UTC in seconds;
otherwise the value has no meaning. See IEEE 1588-2008, clause
8.2.4.2.
True indicates that the value of the UTC offset parameter is valid.
Otherwise false. See IEEE 1588-2008, clause 8.2.4.3.
Displays the boolean values that are used to notify the clocks in the
network or domain that a UTC leap second is pending.
Leap 59 = True means that the last minute of the current UTC day
contains only 59 seconds (see IEEE 1588-2008, clause 8.2.4.4).
Leap 61 = True means that the last minute of the current UTC day
contains 61 seconds (see IEEE 1588-2008, clause 8.2.4.5).
True indicates that the time currently distributed in the network or
domain is traceable to a primary reference, e.g., to GPS (see
IEEE 1588-2008, clause 8.2.4.6)
True indicates that the frequency determining the timescale
currently distributed in the network or domain is traceable to a
primary reference, e.g., to GPS (see IEEE 1588-2008, clause
8.2.4.7).
True indicates that the timescale distributed in the network or
domain is the PTP timescale, i.e., TAI time. False if an arbitrary
timescale is used. See IEEE 1588-2008, clause 8.2.4.8.
Example: GPS (0x20) means that the current grandmaster clock is
synchronized to a satellite system like GPS.
Displays the source of time that is used by the current grandmaster
clock (see IEEE 1588-2008, clause 8.2.4.9). Possible values for this
parameter are listed in IEEE 1588-2008, clause 7.6.2.6.
The OTMC 100 Web Interface
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