Input Gain And Output Volume Control - Marani DPA-260A User Manual

Input Gain and Output Volume Control:

A. The User has to send the following Command including the value to be assigned to Vol
modifying the Input Gain Chn
Also the Output signal Phase can be modified:
TX:
STX ID M _ ID N _
F H 0 C H 3 XX
= 0,..,31 ( )
XX ID device
=0,...,7:
Chn Channel selected
, 2, 3, 4, 5, 6, 7
Gain when Channel
=
Phs Phase only if the Chn
= 0 180 (-12
Vol Gains from to
B. If the command has been properly executed and the Gain Volume modified
microcontroller will send back to the User eg Crestron AMX Remote Control
used by the command:
RX:
STX ID M _ ID N _
F H 0 C H 3 XX
-
UPDATE GAINS PHASE CMD
( = 0, 1)
or the Output Volume Chn
CMD D0 D1 D2
01H Chn 00H 00H
, 0, 1= 1, 2; 2,...,7=
In In Out
,
selected then Vol Output Vol
>1; =0, 1 0=
Value where direct
/ +6 0.1 )
dB dB step dB
(
CMD D0 D1 D2
01H Chn 00H 00H
: =01
H
,
( = 2, 3, 4, 5, 6, 7).
D3 D4 D5
00H 00H 00H
1,.., 6;
Out when Channel
= .
, 1= (180')
inverse
/
/
D3 D4 D5
00H 00H 00H
33
" ",
D6 D7 ETX
Phs Vol F H 7
0, 1 , =
selected then Vol Input
,
then the
..)
the same frame
D6 D7 ETX
Phs Vol F H 7
for