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28 AXN Quick Start Kit User Guide (BK/0045 | 9 Aug. 2021)
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As the AXN/BCU/40x can synchronize over either Ethernet port, there could be multiple PTP Grandmaster’s
available to the AXN/BCU/40x to sync to. When the AXN/BCU/40x is acting as a PTPv1 client, the PTPv1
Preferred Grandmaster setting should be enabled. This tells the AXN/BCU/40x to synchronize to the preferred
PTP Grandmaster.
Setting the AXN/BCU/40x as a PTPv1 Grandmaster
1.
Set the
PTP Protocol
to
PTPv1
.
2.
Enable
PTP Grandmaster
.
3.
Configure the PTPv1 settings above as required.
When acting as a PTPv1 Grandmaster, with the Preferred Grandmaster enabled, the AXN/BCU/40x PTPv1 sync
messages will have the Preferred Grandmaster bit set.
Setting the AXN/BCU/40x as a PTPv2 end-to-end client
1.
Set the
PTP Protocol
to
PTPv2 Delay Req
.
2.
Set the
PTPv2 Subdomain
to the required value (0 - 255).
3.
Set the
PTPv2 Announce Interval
to match the announce interval of the PTPv2 Grandmaster.
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