M e r i d i a n I I U s e r M a n u a l
94
C H A P T E R N I N E
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M e r i d i a n I I U s e r M a n u a l
P T P / I E E E - 1 5 8 8
MODE
is the PTP time mode, either UTC or PTP.
TTL
is the PTP multicast time-to-live in a range from 1 to 255.
CLASS
is the PTP clock class one of SYNCHRONIZED, HOLDOVER, or UNLOCKED.
SCALE
is the PTP timescale either PTP or ARB.
STATE
is the PTP port state one of MASTER, PASSIVE, LISTENING or INITIALIZING.
CLKID
is the PTP clock source either GPS or OSC.
UTC
is the PTP utc offset in seconds from TAI.
UTCV
is the PTP utc offset valid, either TRUE or FALSE.
CA
is the PTP clock accuracy one of 25ns, 100ns, 250ns, 1us, 2.5us, 10us, 25us, 100us,
250us, 1ms, 2.5ms, 10ms, or Unknown.
L59
is the PTP leap 59 second indicator, either TRUE or FALSE.
L61
is the PTP leap 61 second indicator, either TRUE or FALSE.
TT
is the PTP time traceable indicator, either TRUE or FALSE.
FT
is the PTP frequency traceable indicator, either TRUE or FALSE.
TM
is the PTP transmission mode, either MULTICAST or HYBRID
PTP Operation
The Meridian II is configured as an IEEE-1588 Grandmaster Clock (default profile). Verify that the
network settings have been configured and tested using
netconfig
. Once the network has been
configured, the Meridian II will begin to transmit PTP Sync messages after it is locked.
The PTP Sync Interval is user configured. 1, 2, 4, 8, 16, 32, 64, or 128 packets per second are trans-
mitted as a multicast. The packets are only transmitted when the clock is fully synchronized or in
holdover with a known clock accuracy.
The PTP Announce Interval is user configured. Packets are transmitted every 1, 2, 4, 8, or 16 seconds
as a multicast. The packets are only transmitted when the clock is fully synchronized or in holdover
with a known clock accuracy.
The Delay Request Interval is not user-configurable. It is set to 32 seconds.
The PTP Priority 1 is user configured in a range from 0 to 255.
The PTP Priority 2 is user configured in a range from 0 to 255.
Summary of Contents for Meridian II
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