Design Properties

The following list describes the different PTP settings available for your core.

To access the Design Properties dialog, select File > Design Properties. Your design must be in the Design Mode.

Control	Function	Default / Range
PTPv2 Disable LAN B	Aids with situations involving multiple AES67 devices attempting to PTP sync via converged IT networks, using the Q-SYS Cores as PTP boundary clocks. Set to Yes to block PTPv2 traffic on LAN B (typically connected to the Corporate Network).	No / Yes
PTPv2 Domain	Must be identical for any Q-SYS designs using Core to Core streaming. Can also be used to enable or disable synchronizing with other PTPv2-aware devices on the network. Default (0) – the predefined clock domain number 0 (zero). Alt 1 (1) – Alt 3 (3) – the predefined clock domain numbers 1 through 3. User (4–127) – the user-selected clock domain numbers 4–127 Cores using the same name are synchronized to the Core Master. Synchronizing the Cores is required to use LAN Streaming between Cores.	Default (0) Alt 1 (1) Alt 2 (2) Alt 3 (3) User (4-127)
PTP Priority	Used to help determine which device will be the PTPv2 Grandmaster in a system featuring multiple Q-SYS Cores or PTPv2-aware devices.
QoS Preset	Used to select the DSCP Quality-of-Service markings applied to various Q-SYS data types. DSCP markings are used by the network switch to prioritize these data types with other data on the network. See Q-LAN Notes for details on appropriate QoS configuration. The following parameters change depending on what you select in this pull-down. PTPv2 DSCP Value Q-LAN = 46 Audinate = 56 Audio DSCP Value Q-LAN = 34 Audinate = 46	Q-LAN Audinate Manual
PTPv2 DSCP Value	PTPv2 should be the highest priority on your network so as to ensure all Q-SYS devices are synchronized correctly. Poor clock sync over the network will result in audio dropouts. When you select Q-LAN or Audinate for QoS Preset, this field is not accessible.
Audio DSCP Value	Audio Streams (both Q-LAN and AES67) should be the second highest priority on your network. Excessive delay of audio packets over the network will result in audio dropouts. When you select Q-LAN or Audinate for QoS Preset, this field is not accessible.
Camera DSCP Value	Camera streams should be the third highest priority on your network in order to avoid any video dropouts when using Q‑SYS AV-to-USB Bridging.

Control

Function

Default / Range

PTPv2 Disable LAN B

Aids with situations involving multiple AES67 devices attempting to PTP sync via converged IT networks, using the Q-SYS Cores as PTP boundary clocks.

Set to Yes to block PTPv2 traffic on LAN B (typically connected to the Corporate Network).

No / Yes

PTPv2 Domain

Must be identical for any Q-SYS designs using Core to Core streaming. Can also be used to enable or disable synchronizing with other PTPv2-aware devices on the network.

Default (0) – the predefined clock domain number 0 (zero).

Alt 1 (1) – Alt 3 (3) – the predefined clock domain numbers 1 through 3.

User (4–127) – the user-selected clock domain numbers 4–127

Cores using the same name are synchronized to the Core Master. Synchronizing the Cores is required to use LAN Streaming between Cores.

Default (0)

Alt 1 (1)

Alt 2 (2)

Alt 3 (3)

User (4-127)

PTP Priority

Used to help determine which device will be the PTPv2 Grandmaster in a system featuring multiple Q-SYS Cores or PTPv2-aware devices.

QoS Preset

Used to select the DSCP Quality-of-Service markings applied to various Q-SYS data types. DSCP markings are used by the network switch to prioritize these data types with other data on the network. See Q-LAN Notes for details on appropriate QoS configuration.

The following parameters change depending on what you select in this pull-down.

PTPv2 DSCP Value

Q-LAN = 46
Audinate = 56

Audio DSCP Value
- Q-LAN = 34
- Audinate = 46

Q-LAN

Audinate

Manual

PTPv2 DSCP Value

PTPv2 should be the highest priority on your network so as to ensure all Q-SYS devices are synchronized correctly. Poor clock sync over the network will result in audio dropouts.

When you select Q-LAN or Audinate for QoS Preset, this field is not accessible.

Audio DSCP Value

Audio Streams (both Q-LAN and AES67) should be the second highest priority on your network. Excessive delay of audio packets over the network will result in audio dropouts.

When you select Q-LAN or Audinate for QoS Preset, this field is not accessible.

Camera DSCP Value

Camera streams should be the third highest priority on your network in order to avoid any video dropouts when using Q‑SYS AV-to-USB Bridging.

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