Preliminar y – Extron Electronics MPX Plus 866 A Rev. B User Manual
Page 95
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MPX Plus 866 A Media Presentation Matrix Switcher • SIS Programming and Control
PRELIMINAR
Y
Command
ASCII command
(host to switcher)
Response
(switcher to host)
Additional
description
Audio output volume
N
• Individual controls, offering finer trim adjustments (in 0.1 dB increments) for the right and left channels and group
master offsets are present in the DSP and available through software control (see “DSP Configurator Program”, in
chapter 5, “Switcher Software“). The results of these controls are not shown in the responses below.
•
The table below the commands defines the value of each audio volume step.
Set the audio volume to a
specific value
X@
*
X^
V
Out
X@
•Vol
X^]
Example:
1*50v
Out01•Vol50
]
Set output 1 volume to 79%.
Increment volume
X@
+V
Out
X@
•Vol
X^]
Increase volume by 1 step.
Example:
1+V
Out01•Vol51
]
Decrement volume
X@
-V
Out
X@
•Vol
X^]
Decrease volume by 1 step.
View output volume
X@
V
X^]
41
40
38.5%
40%
dB of
attenuation
Output
volume
63
61
62
60
59
57
58
56
55
53
54
52
51
49
50
48
5.5%
8.5%
7%
100
0%
00
10%
11.5%
14.5%
13%
16%
17.5%
20.5%
19%
22%
23.5%
26.5%
25%
28%
47
45
46
44
43
42
29.5%
32.5%
31%
34%
35.5%
37%
dB of
attenuation
Output
volume
39
38
37
35
36
34
33
31
32
30
29
27
28
26
41.5%
43%
44.5%
47.5%
46%
49%
50.5%
53.5%
52%
55%
56.5%
59.5%
58%
61%
25
23
24
22
21
20
62.5%
65.5%
64%
67%
68.5%
70%
dB of
attenuation
Output
volume
19
17
18
16
15
13
14
12
11
9
10
8
7
5
6
4
71.5%
74.5%
73%
76%
77.5%
80.5%
79%
82%
83.5%
86.5%
85%
88%
89.5%
92.5%
91%
94%
3
1
2
0
95.5%
98.5%
97%
100%
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
value
value
value
X6
X6
X6
Command/response table for basic SIS commands (continued)
N
X@
= Output number
01 – 06
X^
= Audio attenuation
00 – 64 (1 dB/step except for 0-to-1, which is 36 dB)