Operating the Equipment Locally: Digital Programme Insertion (DPI)
Reference Guide: Voyager E5784 and E5788 HD DSNG Encoder
Page 4-143
ST.RE.E10137.3
4.13 Digital Programme Insertion (DPI) Menu
4.13.1 Option
Availability
This option is only available from the
Systems Menu
when the
M2/ESO2/DPI licence key is purchased. DPI can be triggered either by GPI
contact closure or by the DVS 525 protocol.
4.13.2 Overview
Splicing is used to insert Digital Programme (e.g. advertisements) into an
MPEG-2 transport stream. SCTE-35 has been written to support splicing
information for Cable systems.
4.13.3 DPI Initiated by GPI
Only one of the card’s eight inputs is used. This is configured to be a
straight Open/Close switch. The switch is then able to activate/deactivate
the splicing message insertion.
The GPI card is used as an interface between the Encoder and an
Automation System. The System dictates when the Encoder is to send
SCTE-35 messages by changing the state of the GPI card’s input switch.
Before the command can be executed, some Encoder parameters need to
be set.
4.13.4 DPI Initiated by DVS 525
The number of options available through this method are shown in
Table 4.189. In this mode, the Encoder responds to messages received via
Ethernet adhering to the DVS 525 protocol.
4.13.5 Menu
Structure
Figure 4.19 shows the options available from the menu.
Figure 4.19: Menu Hierarchy – Digital Programme Insertion DPI Menu (GPI Initiated)
— DVS 525 COMPEL
— DVS 525 SCTE 35
— GPI SCTE 35
— Dig Program Ins (DPI)
— DPI Mode
— GPI Input Pin
— GPI OutofNet Polarity
— Return to Network
— Avail Descriptor
— Provider Avail ID
— DPI info PID
— Component Tag
— OUT Pre-roll
— Return Pre-roll
— Nbr Out Msg
— Nbr Return Msg
— Splice Duration
— Fixed Delay
— Splice ID Increment Mode
Digital Programme Insertion (DPI)....
….
System
Menu
….
Ext Contro
l
Auto Retur
n
— Present
— Off
