Extron Electronics MVX VGA A User Guide - Manual (Page 76)

4-7 MVX VGA A Matrix Switchers • Programmer’s Guide
PRELIMINAR
Y
Command/response table for SIS commands (continued)
Command ASCII command
(host to switcher)
Response
(switcher to host)
Additional
description
Video mute commands
RGB mute X#
*1B Vmt
X#
*1
]
Mute output
X#
RGB
(video off).
RGB unmute X#
*0B Vmt
X#
*0
]
Unmute output
X#
RGB
(video on).
Read RGB mute X#
B
X*] 1 = mute on, 0 = mute off.
Global RGB mute 1*B Vmt1 ] Mute all RGB outputs.
Global RGB unmute 0*B Vmt0
] Unmute all RGB outputs.
Audio input gain and attenuation
N The set gain (G) and set attenuation (g) commands are case sensitive.
Set input audio gain to +dB
value X!
*
X%
G In
X!•
Aud
X$]
Example: 1*2G In01
•
Aud+02
] Set input 1 audio gain to
+2 dB.
Set input audio attenuation
to -dB value X!
*
X%
g In
X!•
Aud
X$]
Increment gain X!
+G In
X!•
Aud
X$] Increase gain by 1 dB.
Example: 5+G In05
•
Aud+03
] Increase Audio input 5 level
from +2 dB to +3 dB.
Decrement gain X!
-G In
X!•
Aud
X$] Decrease gain by 1 dB.
Example: 7-G In07
•
Aud-09
] Decrease audio input 7 level
from -8 dB to -9 dB.
Read input gain X! G X$]
Audio output volume
N The table on page 4-8 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&] Increment volume by 1 step.
Example: 1+V Out01 • Vol51 ]
Decrement volume X#
-V Out
X#•
Vol
X&] Decrease volume by 1 step.
Read output volume X#
V
X&]
Audio mute commands
Audio mute X#
*1Z Amt
X#
*1
]
Mute output
X#
audio
(audio off).
Audio unmute X#
*0Z Amt
X#
*0
]
Unmute output
X#
audio
(audio on).
Read audio mute X#
Z
X*] 1 = mute on, 0 = mute off.
Global audio mute 1*Z Amt1 ] Mute all audio outputs.
Global audio unmute 0*Z Amt0
] Unmute all audio outputs.