Imagine Selenio X100, Инструкция по установке и эксплуатации

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Selenio X100
Installation and Operation Manual
69
BT-1685
Overview
The X100 uses VANC data packets for the transmission of Inter-Station control data,
according to the ITU-R BT.1685 standard.
The BT-1685 data packet contains the following structure:
Figure 3-20 Inter-Station Control Data Packet Format
The UDW is further divided into a 1 word header, 248 data words and a 6-word ECC, as
shown in
Table 3-6 .
Table 3-7 and Table 3-8 s how the structure of the 248-word ISC data format:
Table 3-6 UDW Format
UDW Format (255 Words)
Inter-Station Control
Data Header Word Inter-Station Control
Data Word Error Correction
Parity Word (ECC)
Word Count 1 248 6
ADF DID SDID DC UDW CS
Ancillary Data
Flag
Data Identification
Word
Second Data
Identification Word
Data Count
Word
User Data
Word
Check Sum
Word
Notes:

DID of inter-station control data packet shall be set to 143
h

SDID of inter-station control data packet shall be set to 101
h

DID: 25F
h
and SDID: 1FE
h
in the range of the “user application” are used in some countries

Preferably, the inter-station control data packet is placed in the vertical ancillary data space (VANC)
Word
Count
3 1 1 1 255 1
Table 3-7 In ter-Station Control Data Format
Video Mode Audio Mode Trigger Bits
Bit
Nu
m
b
e
r
b7
Transmitting station code Transmitting station time Cur
re
n
t video mo
de
Next video
m
ode
Vid
e
o mod
e
cou
n
tdow
n‘
Current DownMix spe
cification
Next DownMix spe
cification
Aud
io mo
de
co
un
tdo
w
n
Q8 Q16 Q24 Q32
b6 Q7 Q15 Q23 Q31
b5 Q6 Q14 Q22 Q30
b4 Q5 Q13 Q21 Q29
b3
Cu
rre
nt
au
dio
m
o
de
Next au
dio
m
o
de
Q4 Q12 Q20 Q28
b2 Q3 Q11 Q19 Q27
b1 Q2 Q10 Q18 Q26
b0 Q1 Q9 Q17 Q25
Words 8 9 4 4 1 1 1 1 1 1 1 1
Word Number 1-8 9-17 18-21 22-25 26 27 28 29 30 31 32 33