Cisco D9054 Installation And Operation Manual page 177

Setting Up the DPI,
23. Click Apply.
24. Go back to the DPI page to set the state of the DPI messages you want to trigger.
Enable
message
Enable the DPI Messages you want to send. The DPI elementary stream
describes the DPI.
25. Select the contact closure Start Trigger.
This indicates the input number and the position (Open/high or Close/low) of
the contact closure input to start the generation of the DPI. Possible inputs are
Open Input/Close Input of the selected input (i.e., 1 to 8) and DTMF.
26. Select the contact closure Stop Trigger.
This indicates the input number and the position (Open/high or Close/low) of
the contact closure input to stop the generation of the DPI. Possible inputs are
None, Auto Stop, Open Input 1 to 8, Close Input 1 to 8, and DTMF.
27. Set the Pre-roll Delay for the Start Trigger.
This feature allows splicers to delay requests to the ad server in order to
accommodate play out equipment latency in the system. Possible values are in
the range of 1 to 60000 ms. The default value is 6000 ms.
Note: Pre-roll Delay must be less than the Break Duration.
Note: The Pre-roll Delay must be greater than Repeat Count x Repeat Interval.
28. Set the Pre-roll Delay for the Stop Trigger.
This sets the time delay required prior to the Stop trigger initiating due to
equipment latency. Possible values are in the range of 0 to 60000 ms. The default
value is 0 ms.
Note: Pre-roll Delay must be less than the Break Duration.
4038938 Rev A
Continued
D9054 HDTV Encoder Intstallation and Operation Guide 5-93