CHAPTER 5: SETPOINTS
5.2 PRODUCT SETUP
GEK-106310-AF
F650 DIGITAL BAY CONTROLLER
5-13
STRICT POWER PROFILE
Power profile (IEEE Std C37.238™-2011) requires that the relay only select as a grandmaster power profile compliant
clocks, that the delivered time have worst-case error of ±1 µs, and that the peer delay mechanism be implemented. With
the strict power profile setting enabled, the relay only selects master clocks displaying the IEEE_C37_238 identification
codes. It uses a port only when the peer delay mechanism is operational. With the strict power profile setting disabled, the
relay uses clocks without the power profile identification when no power profile clocks are present, and uses ports even if
the peer delay mechanism is non-operational.
This setting applies to all of the relay’s PTP capable ports.
PTP DOMAIN NUMBER
This setting should be set to the domain number of the grandmaster-capable clock(s) to be synchronized to. A network
may support multiple time distribution domains, each distinguished with a unique domain number. More commonly, there
is a single domain using the default domain number zero.
This setting applies to all of the relay’s PTP capable ports.
PTP VLAN PRIORITY
This setting selects the value of the priority field in the 802.1Q VLAN tag in request messages issued by the relay’s peer
delay mechanism. In compliance with PP the default VLAN priority is 4, but it is recommended that in accordance with PTP
it be set to 7.
Depending on the characteristics of the device to which the relay is directly linked, VLAN Priority may have no effect.
This setting applies to all of the relay’s PTP capable ports.
PTP VLAN ID
This setting selects the value of the ID field in the 802.1Q VLAN tag in request messages issued by the relay’s peer delay
mechanism. It is provided in compliance with PP. As these messages have a destination address that indicates they are
not to be bridged, their VLAN ID serves no function, and so may be left at its default value.
Depending on the characteristics of the device to which the relay is directly linked, VLAN ID may have no effect.
This setting applies to all of the relay’s PTP capable ports.
PTP EPOCH
This setting sets the reference point from which time is measured.
NOTE:
PTP settings take effect after rebooting the device.
Summary of Contents for F650
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