Cisco D9054 Installation And Operation Manual page 175

Setting Up the DPI,
20. Enter the Sequence and Return Sequence numbers (0 to 9, *, #). The Sequence
number sets the tone to start the DPI message. The Return Sequence sets the
tone to stop the DPI message. This is an optional DTMF sequence to be included
according to the SCTE-35 standard. The digits 0 to 9 before */# are a request for
tone outputs. */# starts or stops the tone generation, if preceded by a minimum
of one digit.
You can optionally configure the sequence to set the open-collector contacts for
the Advanced D98xx series receivers (for example, Cisco D9854 Advanced
Program Receiver and Cisco D9858 Advanced Receiver Transcoder).
To set an open-collector contact, set two digits after */# to request a trigger
output. The first digit is the pin number and the second digit indicates whether
it should be set or cleared. For example, 123*81 will cause the tone sequence 123
to start on open-collector pin 8.
Note: If there are no digits defined before */#, then */# does not output as a
tone (for example, *81).
For more information on contact closure pin allocation, see Connecting to the
Contact Closure Interface, page 3-9.
21. Enter the Pre-roll and Return Pre-roll. The Pre-roll sets the period of time before
the tone is to be played to switch to the DPI message. The Return Pre-roll sets
the period of time before the tone is to be played to switch or return to the
program. Parameters are in 100 ms increments.
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D9054 HDTV Encoder Intstallation and Operation Guide 5-91