Ross 4500DR-104-07, User Manual, Page: 147 / 161

SRG-4500 User Guide (v7.0) PTP Option • 147
Figure 17.2 Example System
Configuring PTP Profiles
All devices in a system should be configured to the same PTP parameters. To simplify this, and to provide a
common set of values, SMPTE and the AES have created profiles:
• the
SMPTE 2059:2015 profile is recommended for video networks
• the AES67 profile was created for audio networks
To reduce the number of configurations, the AES created AES56-R16:2016 , a set of recommended values that map
between the AES and SMPTE profiles. To simplify setup of the SRG-4500, both SMPTE and AES67-R16 profiles
can be selected to automatically set the parameters to these default values.
Table 17.1 lists the for SMPTE-2059:2105 values.
Table 17.1 SRG-4500 — SMPTE-2059:2015 Selected
PTP GM SMPTE-2059:2015 spec
SRG-4500 Grandmaster Values when
SMPTE-2059:2015 selected
Default Domain
Number
Default value: 127
Configurable range: 0 to 127 Default is 127
Recommend NOT 127 nor 0
Domain is not reset via profile loading
Announce Interval Default value: -2 (4Hz)
Configurable range: -3 to +1
250ms - 4Hz
Announce Receipt
Timeout
Default value: 3
Configurable range: 2 to 10 3 * Announce Interval
Sync Message
Interval
Default value: -3 (8Hz)
Configurable range: -7 to -1 125ms - 8Hz
Min P Delay
Request Interval
Default value: equal to Sync Message Interval
Configurable range: Sync Message Interval to
Sync Message I5 125ms - 8Hz
Backup SRG-4500
ULTRIX-FR5
Primary SRG-4500
IGGY-MADI
Domain: 6
Priority 1: 1
Priority 2: 15
Domain: 6
Priority 1: 1
Priority 2: 12
Domain: 6
Follower Mode Only
IGGY-MADI
Follower/Master
Master Only
Master Only
Master Only
Follower/Master
Network Router
PTP Aware Router
Boundary Clock Mode
Domain: 6
Priority 1: 12
Priority 2: 20
SRG-4500 SYNC GENERATOR SRG-4500 SYNC GENERATOR
Subsystem SRG-4500
SRG-4500 SYNC GENERATOR
1 2 3 4 IP: ###.###.##.###