Options and Upgrades
Reference Guide: evolution 5000 E5780 and E5782 Encoder
Page 3-33
ST.RE.E10135.4
3.14
Dual Output IP/Ethernet Option
(EN5900/HWO/IPTSDUAL)
3.14.1
Read This First!
The Single Output IP/Ethernet Option (EN5900/HWO/IPTS) option has been superseded by
this dual output version. However systems with a mixture of the two options are not supported
due to the differences in operation.
3.14.2 Overview
The Dual IP/Ethernet card provides two separate 100/1000 BaseT Ethernet ports to allow
direct connection to a redundant IP/Ethernet network. The transport stream generated by the
Encoder can be encapsulated into UDP/IP packets according to RFC2250 with an optional
RTP header and transmitted at up to 65 Mbit/s. Additionally the card is capable of splitting the
multi-program transport stream into its individual constituent services and transmitting each
service with its own set of parameters.
The mapping of MPEG-2 transport stream packets into IP data frames is done according to
the protocol stack shown in
Figure 3.11: Encoder Protocol Stack
Between one and seven MPEG-2 transport stream packets can be put in each UDP packet.
The data link layer is Ethernet according to IEEE 802.3/802.3u (auto-sensing 100/1000 Mbit/s,
twisted pair, via RJ-45 connector).
3.14.3 Assembly
The option card has 2 RJ-45 connectors called “Ge 1” and “Ge 2” as shown in
Viewed from the back of the encoder, “Ge 1” is on the left and “Ge 2” is on the right.
Rear Panel
Figure 3.12: View from Back of Encoder
MPEG-2 TS Layer
RFC 2250 RTP
UDP - User Datagram Protocol
Transport Layer - IP
Link Layer – 100/1000BaseT Ethernet
Encoder
Ethernet
Network
(
Optional
)
Содержание E5780
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