Mini Digital Amplifier
7
5. Communication Protocol and Command Codes
Communication Protocol
: RS232 Communication Protocol
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
Command
Function Description
Feedback Code
1A1.
Switching the audio to input 1
A: 1 -> 1
2A1.
Switching the audio to input 2
A: 2 -> 1
0A0.
Mute Audio of MIC and Line out
Mute
1A0.
Mute audio of MIC
Mute MIC
2A0.
Mute audio of line out
Mute LIN
0A1.
Unmute Audio
Unmute
3A0.
Switch on Noise Gate
Gate On
4A0.
Switch off Noise Gate
Gate Off
600%
Checking the working status
A: 1 -> 1
Volume: 30
Bass: 00
Treble: 00
601%
MIC volume up
Volume of MIC: 51
602%
MIC volume down
Volume of MIC: 51
603%
Line volume up
Volume of LINE: 51
604%
Line volume down
Volume of LINE: 51
605%
Bass level up
Bass of LINE: 04
606%
Bass level down
Bass of LINE: 04
607%
Treble level up
Treble of LINE: 04
608%
Treble level down
Treble of LINE: 04
609%
Initialization, back to the default
setting
Init OK
5[x][x]%
Preset MIC volume, [xx] arranges
from [00] to [60].
61 degrees in total.
Volume of MIC: 50
7[x][x]%
Preset line volume, [xx] arranges
from [00] to [60].
61 degrees in total.
Volume of LINE: 50
8[x][x]%
Preset the bass level, [xx] arranges
from [00] to [08].
9 degrees in total.
Bass of LINE: 04
9[x][x]%
Preset the treble level, [xx] arranges
from [00] to [08].
9 degrees in total.
Treble of LINE: 04
Notice:
1: The letter inside bracket [ ] is the variable code, which is changeable.
