Aline EMA 308 9173.81, Руководство по эксплуатации

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27
EMA x08/407
Part N
o
: 917x.xx
ENCODER/ MULTIPLEXER
ASI / SDI/ A/V
→
ASI(TS) & IP(TS)
ASI / HDMI
→
ASI(TS) & IP(TS)
A
LINE
•
Network ID:
This identifies the distribution network (the head end); all transport streams generated or processed in a head
end are given the same network ID.
The following settings must be unique to the relevant device or will be taken account of by only one device in the cascade:
• IP address: The IP address of each device must be unique within the IP network.
• Device within Cascade: Within a cascade of a maximum of 8 devices, each device must receive a unique ID [1 … 8].
The serial order due to the ASI cabling is quite irrelevant.
• Create NIT: If a blank network information table is created for a device during configuration, the device configured to receive
it will overwrite with the current values all NIT information contained in the transport stream. If this option is configured in
more than one device, it will be the table in the last device which is functional.
• Create TDT/ TOT: see above.
If TDT or TOT tables are created for a device during configuration, the device configured to receive it will overwrite with the
current values all the relevant information contained in the transport stream. If this option is configured in more than one
device, it will be the table in the last device which is functional.
• Program Name: The program name is the designation of the service taken over via the relevant interface, A to D. If more
than one device is in use, the default setting for each device will automatically generate the program name “Prog A” …
“Prog D”. These names will show in the program tables of the reception devices. They should be unequivocal in
meaning and should therefore be changed to represent the actual situation.
The information on cascades and positions which has been set in the configuration will be the basis for the distribution of the transport
stream over the individual programs (or services) and of the automatic allocation of neutral program names and of A/V PIDs and service
IDs in ascending order. It is possible to change the program names but not the PIDs.
Automatically allocated service ID‘s and PID‘s
Device/ N
o
. Input port Program name Service PMT Video Audio TTX
2
VTX
1
EMA .../ 1 A Prog-A 0x10 0x110 0x210 0x310 0x410 0x414
1
B Prog-B 0x11 0x111 0x211 0x311 0x411 0x414
1
C Prog-C 0x12 0x112 0x212 0x312 0x412 0x414
1
D Prog-D 0x13 0x113 0x213 0x313 0x413 0x414
1
EMA .../ 2 A Prog-A 0x20 0x120 0x220 0x320 0x420 0x424
1
B Prog-B 0x21 0x121 0x221 0x321 0x421 0x424
1
C Prog-C 0x22 0x122 0x222 0x322 0x422 0x424
1
D Prog-D 0x23 0x123 0x223 0x323 0x423 0x424
1
EMA .../ 3 A Prog-A 0x30 0x130 0x230 0x330 0x430 0x434
1
B Prog-B 0x31 0x131 0x231 0x331 0x431 0x434
1
C Prog-C 0x32 0x132 0x232 0x332 0x432 0x434
1
D
Prog-D 0x33 0x133 0x233 0x333 0x433 0x434
1
EMA .../ 4 A Prog-A 0x40 0x140 0x240 0x340 0x440 0x444
1
B Prog-B 0x41 0x141 0x241 0x341 0x441 0x444
1
C Prog-C 0x42 0x142 0x242 0x342 0x442 0x444
1
D Prog-D 0x43 0x143 0x243 0x343 0x443 0x444
1
... ... ... ... ... ... ... ... ...
EMA .../ 8 A Prog-A 0x80 0x180 0x280 0x380 0x480 0x484
1
B Prog-B 0x81 0x181 0x281 0x381 0x481 0x484
1
C Prog-C 0x82 0x182 0x282 0x382 0x482 0x484
1
D Prog-D 0x83 0x183 0x283 0x383 0x483 0x484
1
Table 3: Automatically allocated service IDs and PIDs
1)
VTX: Teletext internally generated.
The EMA device has the facility that a teletext carousel can be generated for each particular device. This teletext can be allocated to one or all of
the services being shown. This is an optional function and a charge is made for it.