DekTec DTC-379 C2Xpress - Manual (Page 13)

© 2010 - 2015 DekTec Digital Video BV Page 13/18 DTC-379 C2Xpress Manual
Essential Tools for Digital-TV Professionals February 2015
DTC-379 C2Xpress
PLP parameter Description
PLP ID Unique identification of a PLP within a C2 system
Bundled Indication whether the PLP is bundled with other PLPs within the C2 System.
If checked, the PLP is bundled with PLP(s) in other Data Slice(s) (having the
same PLP ID)
Type PLP Type: Common PLP, Grouped Data PLP or Normal Data PLP
Group ID PLP Group ID. Identifies the PLP group with which the PLP is associated. This
parameter is not used when the PLP type is Normal Data PLP
Modulation Modulation type used by the PLP:16-QAM, 64-QAM, 256-QAM, 1024-QAM
or 4096-QAM
Code rate Code rate used by the PLP: 2/3, 3/4, 4/5, 5/6, 8/9 (16K LDPC) or
9/10(64K LDPC)
ACM test Displays the number of modulation and coding parameter settings defined
for Adaptive Code and Modulation (ACM) testing. This is only available for
type 2 Data Slices.
If no settings are defined for ACM testing, ACM testing is disabled and the
modulation and coding parameters from the PLP-parameter page are used.
If one or more settings are defined for ACM testing, ACM testing is enabled.
Successive XFEC frames of the PLP use the modulation and coding
parameter setting from the ACM-testing list. After the last parameter setting
from the list is used, the first setting is used again.
When double clicking on the ACM test field, a dialog is opened that allows
you to specify the PLP modulation and coding parameters for ACM testing.
By a right mouse click you can add or remove entries.
Per entry you can specify the FEC Type, Modulation, Code rate, Header
Counter and the number of XFEC frames using these parameters.
FEC FEC type used by the PLP: 16K LDPC or 64K LDPC
HEM High Efficiency Mode / Normal Mode selection. If checked, the PLP uses
High Efficiency Mode
ISSY Input Stream Synchronization mechanism: None, Long (=3byte) or Short
(=2byte) field
BUFS Maximum size of the requested receiver buffer to compensate for delay
variations. This variable uses the ISSY field and therefore it is only enabled if
the ISSY field is used
Output Delay Delay (in T units) between the incoming data and the output TS in the
receiver model.
NPD Null Packet Deletion. If checked, the PLP uses Null Packet Deletion
CCM CCM/ACM flag (Constant Coding and Modulation or Variable/Adaptive
Coding and Modulation). If checked, CCM is signalled, otherwise ACM.
Header Counter Number of FECFrames following the FECFrame header: 1 or 2 FECFrames
PSI/SI Reproc Indication whether the PSI/SI is reprocessed or not. If checked, this indicates
that the PSI/SI is reprocessed and the receiver can rely on the PSI/SI
information
TS ID Transport Stream ID that serves as a label for the identification of this TS
from any other TS within the C2 System. This is used when the PSI/SI is not