30
EMA x08/407
Part N
o
: 917x.xx
ENCODER/ MULTIPLEXER
SDI/ A/V
→
ASI(TS) & IP(TS)
HDMI
→
ASI(TS) & IP(TS)
A
LINE
Term
Meaning
Notes
Kbps
Bit rate
K
ilo
B
it
p
er
s
econd (where Kilo=1024)
Load
Reads out the parameter settings of the EMA de-
vice and shows them in the settings masks.
The parameters can be viewed and altered. “Save”
saves the edited parameters.
Mbps
Bit rate
M
ega
B
it
p
er
s
econd
MIB
M
anagement
I
nformation
B
ase
The device-specific file (ME.mib) to serve the sy-
stem via SNMP
Network ID
Network identification: this ID gives the unique
identification for the link between DVB transport
streams (TS‘s) and a particular (cable) network
Within the network this ID is the same for all TS‘s.
This is an element of the NIT and is usually over-
written by the succeeding modulator component.
NIT
N
etwork
I
nformation
T
able
this is an important table for the transmission of
channel parameters. The NIT supports, for examp-
le, the “seek” function in the DVB receivers so that
a broadcaster is found.
The EMA device is capable of setting up this table.
A succeeding modulator component can add to it
or overwrite it.
Password
Access to configuration via the IP network is
password-protected.
The password on delivery is set to: neu
Program Language
This shows the program language; the abbreviati
-
ons to be used are those in ISO 639-2 [4]
code, (i.e. “deu” for German)
The details will be displayed in the receiver for the
information of the watcher.
Program Name
This is the name of the newly generated DVB pro-
gram. Every A/V channel should be given a name.
The name of the program will be presented for
selection in the table of broadcasters by the DVB
receiver.
RDS
R
adio
D
ata
S
ystem
Additional digital information concerning analogue
radio programs, e.g. name of broadcaster,
short details, special announcements.
Save
Saves the configuration values which have been
set for the EMA device
These parameters are read using “Load” and
stored using “Save”.
SDI
S
erial
D
igital
I
nterface for digital, uncompressed
video signals
270 Mbps, transmission via BNC cables, audio
data can be embedded
SDT
S
ervice
D
escription
T
able
This contains the programs offered and relevant
details of broadcaster.
Serial number
The 5-digit device serial number
This contains the programs offered and relevant
details of broadcaster
SNMP
S
imple
N
etwork
M
anagement
P
rotocol
An interface protocol allowing data exchange and
device control via the network.
System bit rate
The digital bandwidth available for an A/V channel. The system bit rate for a channel is composed of
the video and audio shares combined.
TS
T
ransport
s
tream (a data signal in packet form)
The whole of the information necessary to enable
transmission of digital signals. One transport
stream can contain more than one program, with
audio, video, teletext and details.
TS ID
T
ransport
s
tream
id
entifikation (unique designati
-
on of the transport stream)
When devices are linked up in series for a shared
transport stream, they must all use the same TS
ID.
TS out bit rate
Output data bit rate of the transport stream =
digital bandwidth
This rate must be adequate to the quantity of data.
TTX processing
T
ele
t
e
x
t processing and onward transmission
Conversion of the teletext signal contained in the
analogue signal into digital transport packets
which are then transmitted in the DVB signal.
Video format
Video system
Standards applying to the analogue video input
signals which require conversion
Factory setting: PAL/ SECAM (50 Hz); alternative
-
ly, NTSC (60 Hz) or OFF (Digital Radio) can be
selected
VPS/ WSS
VPS (
v
ideo
p
rogramming
s
ystem):
this is the recording control for the video recorder
WSS (
w
ide
s
creen
s
ignalling):
format control for the TV itself
Both these signal components are contained in
the analogue TV signal.
WSS = ON and VPS = ON: here the signal com
-
ponents are converted and transmitted in the DVB
signal.
