4407
Digital Audio Sample Rate Converter
Technical Manual
19
4.6
Protocol examples
Status request
Controller
Description
Device response
F5
Group poll
F3 0A 30
Status request card 10
F5
Group poll
00
F4 0A
Request data from card 10
1F
F4 0A
2F
F4 0A
31
F4 0A
44
F4 0A
58
F4 0A
60
F5
Group poll
Device response 1F, 2F says that the fader gain is fully up. Byte 31 indicates that the
fader is at the top position and byte 44 says that no valid AES bit stream data is
present at the card inputs. Byte 58 and 60 form together to report the output level
gain of 0db (unity gain).
Note: This is the status of the 4407 card after a reset command, on power-up and
when the comms reset button is pushed.
Set output level gain
Controller
Description
Device response
F5
Group poll
F3 07 18 00
Set unity gain on card 7
F3 0B 10 00
Set - 12dB gain on card 11
F5
Group poll
No response is issued from the 4407 card when the gain is changed.
Содержание 4407
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