WEB Interface 127
ID: um_t2gateway CP560 DVB-T2 Gateway User’s Manual Rev. 2.2 (3686)
Automatic Subslices
If using PLPs of Type 2, select if the number of subslices should be calculated automatically,
or set manually. If automatically the CP560 will find the highest valid number of subslices.
Source port
Select which source you want to use for each PLP. The source may be either ASI, IP or an
Input Switch. IP and Input Switch are licenced features.
Note: Setting Input port to None disables the PLP, but keeps it’s config
stored.
PLP id
Set the PLP id for each PLP. Must be a unique number among all PLPs.
Requested bitrate (Multi PLP)
Specify the desired bitrate for this PLP. When pressing Apply the CP560 will find the min-
imum number of FEC blocks needed to allocate this rate. For most practical applications a
slightly larger bit-rate than requested will be allocated due to requirement of whole num-
ber of FEC blocks. This given bitrate is shown below. The CP560 might not be able to
allocate the desired bitrate if the sum of the bitrates for all PLPs exceed the total capacity
of the T2-Frame. If so, a warning will be given when pressing Apply. If so the Requested
bitrate must be decreased, or the number of bits per symbol increased or the total T2-Frame
capacity must be incread.
PLP bitrate
The actual bitrate for given the PLP based on the requested bitrate. The PLP bitrate will
always be greater than or equal to the Requested bitrate, because the CP560 will allocate
the minimum number of whole FEC blocks to accomodate the requested bitrate. If only
using one PLP, the PLP bitrate will be maximized to use the whole capacity and will thus
ignore the requested bitrate parameter.
Type
This field indicates the type of the Physical Layer Pipe (PLP).There are 3 types of PLPs:
• Common PLPs carry data that is shared between several services.
• Type 1 data PLP carry services that require good power saving and should be
carried after the common PLPs.
• Type 2 data PLPs are carried in multiple sub-slices per DVB-T2 frame in the DVB-
T2-frames in which they occur. Choosing Type 2 PLP for one or more PLPs will
make the CP560 find the largest number of subslices and split the data accordingly.
Payload type
This field indicates the type of the payload data carried by the associated PLP. Supported
types are:
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