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COM3000 Integrator’s
Installation Manual
Date: January 2024
Version 1.1
12
EXTERNAL VIDEO SOURCES
The COM3000 can modulate video sources from multiple sources.
Each source needs to be an MPEG2 single program transport IP stream and will require a QAM output carrier
assignment.
Care should be taken in combining multiple digital video sources. In some cases, placing non-Pro:Idiom
programing adjacent to Pro:Idiom programming in the channel ring could cause Pro:Idiom key loss due to
Packet Identifier (PID) overlap.
13
MPEG 4 TO MPEG 2 TRANSCODER
The Vantiva COM3000 system outputs MPEG4 content on an MPEG2 transport stream containing the original
encoded video stream as available from DIRECTV.
High-definition programming is MPEG4 (H.264) with AC3 audio.
High-definition programming includes Pro:Idiom encryption unless otherwise authorized by DIRECTV and
properly licensed for operation.
All end points on the property must be capable of receiving and decrypting MPEG4, Pro:Idiom encrypted signal.
DIRECTV approved transcoders are available to transcode native MPEG4 signal to MPEG2.
Use of transcoders requires DIRECTV approval and COM51 licensing.
DIRECTV has approved the use of the following MPEG2 transcoders. These devices receive encrypted HD
programming from the COM system over IP, transcode the signal and send it back to the QAM.
Video Propulsion
Blonder-Tongue
The transcoders may output standard definition digital signal or MPEG2 HD streams.
A license key for transcoding will be required. This feature license file is available from your Vantiva distributor
at no charge but requires DIRECTV approval.
NOTE: For accurate bit rates to display Blonder Tongue Transcoders should use port assignments starting at
20070.
