Functional description, Aes input – Grass Valley 8912RDA User Manual
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8912RDA/RDA-D Instruction Manual
Functional Description
while reading the following func-
tional description.
Figure 7. 8912RDA Block Diagram
AES Input
The input signals comes from the 50-pin connector, P1, in series with a DC
blocking capacitor and feeds a digital audio transformer, T1 or T2,
depending on the input. The output side of these transformers goes to the
Out 2a
Out 2b
Out 2c
Out 2d
4
6
8
10
Input 1
Unused
Out 1
Out 2
Out 3
Out 4
Ch. 1
Lock
Fault
Pwr
Comm
Frame Bus
Unbal
Unbal
Bal
Bal
Single-channel
Dual-channel
1
Reclocker
Microprocessor
1
3
5
7
Out 5
Out 6
Out 7
Out 8
2
4
6
8
T1
Input 1
Unused
Out 1a
Out 2b
Out 3c
Out 4d
Ch. 1
Lock
Single
Channel
Dual
Channel
Fault
Pwr
Comm
Frame Bus
Unbal
Unbal
Bal
Bal
1
Reclocker
Microprocessor
3
5
7
9
T1
Input 2
Unbal
Unbal
Bal
75
110
75
110
75
110
Bal
2
T2
Ch. 2
Lock
Reclocker