GUIDE TO INSTALLATION AND OPERATION
IPG-4901 |
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4.4.3 PTP Failover
In general, the PTP arriving on ETH1 port is used by the IPG-4901.
If the PTP on ETH1 is lost, the card will enter Flywheel mode, and then switch over to the PTP from ETH2 once the
Announce Receipt Timeout has been reached.
The card will switch back to ETH1 using the same process once a valid PTP has been detected on ETH1.
Failover and return should be glitch-free on IP reception and transmission if PTP configuration respects this rule:
IPG4901 announce Interval x IPG4901 Announce Receipt Timeout
≤ 2s
4.5 Test panel
The test generator can be selected by the user to appear on any output (SDI and stream).
Test Pattern Generator Format
Select the test pattern format using the pulldown.
The pattern will be generated at the
, as specified in
the
Reference - Selection
panel.
•
The current value is displayed in
this panel at the top of the table,
for reference
•
The generator will be synchronous
to the REF IN if available;
otherwise it will be free-run.
Select the
Test Pattern
checkbox
beside a gateway to force the test
pattern onto that output.
Select the
Force All
checkbox to force
the test pattern onto all outputs.
Format
SD, 720p, 1080i, 1080p
Figure 4-12 Test panel
