LX-DANTE
User’s Guide
v1.00
Clocking considerations
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AES67 mode on a Dante device enables both IEEE 1588 Precision Time Protocol (PTP) v1 and v2. A single clock domain
must be created across both PTP v1 and v2 devices:
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Standard Dante devices support PTP v1 only
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AES67-enabled Dante devices support PTP v1 and PTP v2
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AES67 devices support PTP v2 only
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PTP v1 and v2 are not inter-compatible. One AES67-enabled Dante device will act as the boundary clock between PTP v1
and v2, bridging the two clock domains
Enabling LX-DANTE as Master for both Dante and AES67.
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Enable the Dante card “Preferred Master” status
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Disable “Preferred Master” for all Dante devices that have AES67 disabled.
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Disable “Sync to External” for all devices.
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Assign a PTPv2 priority level of between 128 and 255 for all non-Dante devices
If another AES67 device (Grandmaster Clock, or another AES67 device) is the Master ,
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Make sure the PTP v2 Master has a priority of between 1 and 100, and is using the “Media Profile” clock settings.
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Disable “Preferred Master” and “Sync To External” for all Dante devices.
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One AES67-enabled Dante device will automatically be selected as the Boundary clock, becoming the Dante Master.
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Make sure the Master Clock device is set to use the “Media profile” (not the “Default profile” because Dante devices do not
support the Default profile.
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