Technicolor COM1000, Руководство интегратора

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6.10 Using the DIRECTV Electronic Program Guide (EPG)
Each COM24 card gives you access to an integrated Electronic Program Guide (EPG) that can
be used to create a user-defined guide channel of all programming offered at your location. The
setup is done through the same web interface as is used for the normal system setup. The guide
can be expanded to include all channels being offered at the property, whether the source is the
COM1000, an analog SMATV system, or over-the-air signals. The only limitation to what
channels can be added to the EPG is that they must also exist in DIRECTV‟s channel lineup.
There are some important items to note when working with the EPG:
1. The EPG information can only be contained within a single card. You cannot access
your EPG settings when logging in to any other card. Therefore, it is important to keep
track of which card contains your guide information. It is also recommended to keep a
text file containing the EPG listing in case you lose access to that particular card. The
SysInfo page will show „:EPG‟ in the Property_ID field if a card is transmitting the EPG
channel.
2. The EPG is created in such a way that it provides the viewer with what appears to be an
auto-scrolling channel listing. It is essentially a dynamic MPEG video stream made up of
still images of the current programming. It moves down the list of assigned channels
every 2.5 seconds, creating a constant cycle, showing nine channels at a time. As such,
the guide is not interactive, so the viewer must manually tune to their channel of choice.
3. If the number of channels in the EPG fits in one screen (nine or less) the channel listing
will not scroll. This permits the installer to have multiple cards generating a different
EPG channel listing nine channels each. This will create the user experience that
channeling up or down will page up or down nine channels in the guide.
4. The SysInfo tab will show which cards are generating an EPG by placing the string
“:EPG” in the Property_ID field.
5. The EPG can also convert the DIRECTV guide information into PSIP guide information
that is decodable by many televisions. Most commercial televisions appear to ignore
PSIP guide information. PSIP permits the channel number to be remapped, the channel
name can be displayed, the current time displayed, and the current and next program titles
displayed. To generate PSIP guide information, the last two numbers for each channel
must list the QAM24 chassis number and QAM24 destination port number. This
information is automatically filled in when EpgLoad it clicked. To disable PSIP guide
generation for a channel, set the port number to -1. If the DestIP is a valid IP address but
the DestPort is 0, then the EPG channel is disabled but PSIP guide generation is still
enabled.