Extron Electronics MTPX Plus Series User Guide - Manual (Page 90)

Command/Response Table for SIS Commands (continued)
Command Function SIS Command
(Host to Unit)
Response
(Unit to Host)
Additional description
Audio output volume
NOTE :
The table below the commands defines the value of each audio volume step.
Set the audio volume to a specific
value X1* * X1( V Out X1* •Vol X1(]
Example: 1*50v Out01•Vol50 ] Set output 1 volume to 79%.
Increment volume X1* +V Out X1* •Vol X1(] Increment volume by 1 step.
Example: 1+V Out01•Vol51 ]
Decrement volume X1* -V Out X1* •Vol X1(] Decrease volume by 1 step.
Read output volume X1* V X1(]
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%
76 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 X19 X19 X19
NOTE: X1* = Local audio output number 1 – 2 (MTPX Plus 128)
1 – 4 (other matrix sizes 1616 and smaller)
1 – 8 (matrix sizes 1632 and larger)
X1( = Volume adjustment range 0 – 64 (1 dB/step except for 0-to-1, which is 13 dB)
MTPX Plus Series • Programming Guide 84