7
RS-232 Communication Protocol
Note:
1. The letter inside the bracket [ ] is the variable code, which is changeable.
2. The bracket [ ] is not part of the command.
3. Any dot “.” after the letters is part of the command.
Example 1:
Switch the Input 2 to the line out. RS-232 command: [2A1.]
Example 2:
Turn up the volume on line audio. RS-232 command: [603%]
Example 3:
Preset the MIC volume to “21” degree. RS-232 command: [521%]
Example 4:
Check the status of Zoom function [0608%]
To cycle thru the Zoom functions, send the command repeatedly [0608%][0608%]
Communication protocol
Command
Function Description
Feed back
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 Audio
1A0.
Mute audio of MIC
Mute MIC
2A0.
Mute audio of line out
Mute LIN
0A1.
Unmute Audio
Unmute Audio
3A0.
Turn on Noise gate
Gate On
4A0.
Turn 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
A: 1 -> 1
Volume: 50
Bass: 04
Treble: 04
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
A
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