4
EMA x08/407
Part N
o
: 917x.xx
ENCODER/ MULTIPLEXER
SDI/ A/V
→
ASI(TS) & IP(TS)
HDMI
→
ASI(TS) & IP(TS)
A
LINE
1.3 General description of functions
The EMA devices with “cascade” facility are MPEG encoder and transport stream multiplexer. With them the user‘s own digital program
“bouquets“ in the DVB transport stream format can be produced. The output signals are provided via an ASI transport stream interface
and a separately configurable IP interface. These signals can be broadcast or fed into the cable TV network with the aid of appropriate
modulators.
Depending on the application, the devices are pre-configured by hardware. Using the integrated user interface, the operating parame-
ters be varied within wide limits.
EMA device variants:
EMA 308
9173.81
SDI/ A/V
→
ASI-TS & IP-TS (MPEG-2 SD), 85 ... 264 V~, 110...370 V– input
EMA 308
9173.82
SDI/ A/V
→
ASI-TS & IP-TS (MPEG-2 SD), 36...75 V– input
EMA 407
9174.71
ASI-TS (H.264/ AVC)
→
ASI-TS & IP-TS (MPEG-2 SD), 85 ... 264 V~, 110...370 V– input
EMA 407
9174.72
ASI-TS (H.264/ AVC)
→
ASI-TS & IP-TS (MPEG-2 SD), 36...75 V– input
EMA 408
9174.81
SDI/ ASI-TS (MPEG-2)
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD),
A/V
→
ASI-TS & IP-TS (H.264/ AVC SD), 85 ... 264 V~, 110...370 V– input
*
EMA 408
9174.82
SDI/ ASI-TS (MPEG-2)
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD),
A/V
→
ASI-TS & IP-TS (H.264/ AVC SD), 36...75 V– input
*
EMA 508
9175.81
SDI/ ASI-TS (MPEG-2)/ HDMI
**
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD), AC3, 85 ... 264 V~, 110...370 V– input
EMA 508
9175.82
SDI/ ASI-TS (MPEG-2)/ HDMI
**
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD), AC3, 36...75 V– input
EMA 608
9176.81
SDI/ ASI-TS (MPEG-2)
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD), AC3, 85 ... 264 V~, 110...370 V– input
EMA 608
9176.82
SDI/ ASI-TS (MPEG-2)
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD), AC3, 36...75 V– input
EMA 708
9177.81
SDI/ ASI-TS (MPEG-2)/ HDMI
**
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD), 85 ... 264 V~, 110...370 V– input
*
EMA 708
9177.82
SDI/ ASI-TS (MPEG-2)/ HDMI
**
→
ASI-TS & IP-TS (H.264/ AVC SD/ HD), 36...75 V– input
*
*
AC3 pass through
**
currently HDCP encryption is not supported
EMA 308
EMA 407
EMA 408
EMA 508
EMA 608
EMA 708
Input channels
4
2
4
4
4
4
IN
OUT
AV
ASI + IP
MPEG-2 SD
√
SDI
ASI + IP
MPEG-2 SD
√
ASI
H.264/ AVC
ASI + IP
MPEG-2 SD
√
A/V
ASI + IP
H.264/ AVC SD
√
SDI
ASI + IP
H.264/ AVC SD/ HD
√
√
√
√
ASI
MPEG-2
ASI + IP
H.264/ AVC SD/ HD
√
√
√
√
HDMI
*
ASI + IP
H.264/ AVC SD/ HD
√
√
SDI
ASI + IP
H.264/ AVC SD/ HD,
AC3
AC3 pass
through
√
√
AC3 pass
through
HDMI
*
ASI + IP
H.264/ AVC SD/ HD,
AC3
√
AC3 pass
through
Table 1: Device versions
*
currently HDCP encryption is not supported
Up to four input signals are encoded at each device and inserted into the output transport stream. The output signal is a DVB transport
stream as per ISO13818-1 [5] at a maximum data rate of 214 Mbps and is transmitted via the ASI interface. It can be sent either to a
cascaded EMA or to a downstream modulator. By cascading EMA devices (up to 8), a transport stream with up to 32 services can be
produced or these services can be added to an incoming transport stream.
The EMA ASI input port copes with a transport stream signal at a maximum rate of 214 Mbps. With adequate transmission rate on the
part of the external transport stream, the internal encoded A/V signals can be embedded in accordance with the DVB standard using
the multiplexer integrated into the EMA device.
The output signal contains all the tables necessary to the program and associated services (PAT, PMT and SDT). A NIT will be
generated but will not contain any network-specific information. A downstream modulator is responsible for the necessary adaptation
of the NIT.
