Volume Step Control (0×54)
0 1 2 3 4 5 6 7 8
DLE STX Device
Addres
s
CMD In/Out Chann
el
+/– STX DLE
Packet 0×7B 0×7D 1…254 0×54 In:0,
Out:1
00…15 +:0, –:1 0×7D 0×7B
–60dB…–20dB: 2dB/Step, –20dB…+12dB: 1dB/Step
Example (Volume): 7B7D01540000007D7B
Operating
digital speaker management system
64
