Stoltzen SSA250 Amplifier 2x50W
11
4.3.3 RS232 Communication Commands
1)
Case-sensitive.
2)
“[“, “]” in the commands are only for easy recognition and not necessary in real
operations. Other symbols including
“.” “%” are parts of the commands.
3)
Feedbacks listed in the column
“Feedback” are only for reference, feedbacks may
vary according to different operations.
Communication protocol:
Baud rate: 9600; Data bit: 8; Stop bit: 1; Parity bit: none.
Command
Description
Feedback
1A1.
Switch to input 1
A: 1 -> 1
2A1.
Switch to input 2
A: 2 -> 1
3A1.
Switch to input 3
A: 3 -> 1
0A0.
Mute Audio Line out
Mute Audio
0A1.
Unmute Audio Line out
Unmute Audio
600%
Inquire present working status
A: 1 -> 1
Volume: 30
Bass: 0
Treble: 0
601%
Turn up Line volume by 1
Volume of LINE: 51
602%
Turn down Line volume by 1
Volume of LINE: 51
603%
Turn up Bass volume by 1
Bass of LINE: 4
604%
Turn down Bass volume by 1
Bass of LINE: 4
605%
Turn up Treble volume by 1
Treble of LINE: 4
606%
Turn down Treble volume by 1
Treble of LINE: 4
607%
Restore factory default
Factory Default
A: 1 -> 1
Volume: 45
Bass: 5
Treble: 5
610%
Turn up Line volume by 3
Volume of LINE: 54
620%
Turn down Line volume by 3
Volume of LINE: 51
61X%
Turn up Line volume by X
Volume of LINE: 54
62X%
Turn down Line volume by X
Volume of LINE: 54
7[x][x]%
Preset line volume, [xx] can be 00~60, 61
degrees in total.
Volume of LINE: 50
8[x][x]%
Preset the bass level, [xx] can be 00~10,
11 degrees in total.
Bass of LINE: 7
