6 limitations 1.7 list of abbreviations – DekTec DTC-300 StreamXpress User Manual
Page 6

DTC-300-SP – StreamXpress
USER MANUAL
6
following modulations formats using the appropriate card: 8VSB, QAM A/B/C, DVB-T, DVB-T2,
ISDB-S, ISDB-T, DTMB, CMMB, DVB-S, DVB-S2(X) and DAB+.
SDI streaming
Using a USB or PCI/PCIe DekTec device supporting SDI outputs, StreamXpress can stream 1
pre-recorded SDI stream per SDI output port. For products that have software selectable
bidirectional ASI/SDI ports, use DtInfo for changing input ports into output ports.
NOTE: The SDI file format used by StreamXpress is proprietary to DekTec. It needs to be recorded
using DtGrabber+.
1.6 Limitations
The structure of the software and hardware brings with it a number of limitations. The main
limitations are listed below.
SDI
The SDI streams needs to be compliant to the DekTec SDI file
format and needs to be recorded by DekTec software and/or
hardware.
Conditional access
No real time encryption supported. If a file is encrypted,
StreamXpress will stream the file encrypted.
Multiplexing
Program remultiplexing is not supported. Only the total rate can be
increased from the original total transport rate to meet the channel
output requirements.
VBR
Only CBR Transport Streams are supported.
1.7 List of abbreviations
8PSK
8 Levels Phase Shifting
ACE
Active Constellation Extension
ADTB-T
Advanced Digital Television Broadcast-Terrestrial
ATSC
Advanced Television System Committee
ASI
Asynchronous Serial Interface
CATV
Cable Television
CBR
Constant Bit Rate
CDSD
Cable Delivery System Descriptor
CMMB
China Mobile Multimedia Broadcasting
COFDM
Coded Orthogonal Frequency Division Multiplexing
DAB
Digital Audio Broadcasting
DMB
Digital Multimedia Broadcasting