DT-324D
IP to ASI CONVERTER
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QUICK CONFIGURATION GUIDE
- 0 DG0098 -
QUICK CONFIGURATION GUIDE DT-324D
QUICK CONFIGURATION GUIDE
DT-324D
1 INTRODUCTION
DT-324D
an IP network to a MPEG-2 ASI network.
Input connector must be connected to an IP network, carrying
MPEG-2 transport stream packets. At the four outputs are delivered MPEG-2
packets in ASI format.
The 100/
carrying MPEG-2 transport stream packets. The module extracts the IP
streams from four transport streams corresponding to four DVB-ASI outputs
available.
The figure below shows a format of Ethernet stream accepted, where
it is shown the head for each layer of the network:
module is a converter from IP to ASI that allows you to link
Figure 1.- DT-324D Configuration.
1000 Mbps input must be connected to an IP network
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QUICK CONFIGURATION GUIDE DT-324D
User must specify IP addresses and UDP port for every TS he want to
convert (IP addresses should not be repeated).
The synchronization algorithm of the module requires that each TS
has been generated in a constant Packet Rate at the origin.
IMPORTANT NOTE: There are applications that generate IP streams to
remove null packets from the original stream. Then the packet rate is no
longer constant. In this case the module will not properly synchronize the
stream.
The DT-324D module can be manufactured with two different
configurations. Each of these allows a different number of TS IP inputs and
to include some multiplexes at the outputs. By this way they can generate
MPTS (Multiple Program Transport Stream) from SPTS (Single Program
Transport Stream). Available configurations are:
• SPTS Configuration:
In this configuration are included multiplexers inside the module that
allows combining different SPTS (Single Program Transport Stream)
to deliver four MPTS each output, adding PAD tables, SDT tables,... In
particular, 4 input SPTS by ASI channels are supported. These are
multiplexed, forming MPTS delivered at the outputs.
Figure 2.
This configuration requires some considerations:
• SPTS streams must contain a SPTS_PAT table (PAT with only 1
service_id, indicating 1 PMT).
• Each one of the multiplexers extracts up to 4 streams (each one
identified with a different PID) from each input IP stream
changing the original PIDs. Then each stream inside an ASI has its
own and unique PID. PAT and PMT tables are regenerated and
also added to the NIT and SDT tables (also regenerated).
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QUICK CONFIGURATION GUIDE DT-324D
• MPTS channels do not pass through multiplexes and therefore, are
• MPTS Configuration:
routed directly to the outputs with no restrictions.
In this configuration are caught up to 4 TS that contains MPTS
(Multiple Program Transport Stream) and are extracted directly from
each one of the ASI outputs.
Figure 3.
1.1 SPECIFICATIONS
IP INPUT
Type 1 Ethernet Output 100/1000 Mbps.
Connector RJ45.
TS OUTPUT
Type 4xDVB-ASI.
Connector BNC Female, 75 Ohms.
TRANSPORT STREAM
Communication protocol UDP or RTP/UDP.
Transmision methode MULTICAST / IGMP Version 2.
Payload From 1 to 7 packets MPEG-2.
Configuration Through the DT-800 Control Module in local
Signaling LEDs
ON Green Light: Module in operation.
Off: Module stopped.
PROGRAM Intermittent Light: Module in programming mode.
Asynchronous
intermittent Light: The DT-800 have not received
Off: Module in normal mode.
IP: Red Light: There is not Ethernet connection.
Intermittent Light: Ethernet connection established
(keypad) or remote mode (PC). See DT-800
specifications.
communication from the module
for more than 60 seconds.
but there is not data traffic to
the module.
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