SIS
™
Programming and Control, cont’d
MVX Plus 128 VGA Matrix Switchers • Programmer’s Guide
4-4
PRELIMINAR
Y
Host-to-Switcher Instructions
The switcher accepts SIS (Simple Instruction Set) commands through the
RS-232/RS-422 port and Ethernet port. SIS commands consist of one or more
characters per command fi eld. They do not require any special characters to
begin or end the command character sequence. Each switcher response to an SIS
command ends with a carriage return and a line feed (CR/LF =
]
), which signals
the end of the response character string. A string is one or more characters.
Switcher-Initiated Messages
When a local event such as a front panel operation occurs, the switcher responds
by sending a message to the host. The switcher-initiated messages are listed below
(underlined).
(C) Copyright 2004, Extron Electronics CP 300 450 MAV IP, Vx.xx
]
The switcher initiates the copyright message when it is fi rst powered on or when
connection via Internet protocol (IP) is established. Vx.xx is the fi rmware version
number.
]
Password:
The switcher initiates the password message immediately after the copyright
message when the controlling system is connected using TCP/IP or Telnet and the
switcher is password protected. This message means that the switcher requires an
administrator or user level password before it will perform the commands entered
via this link. The switcher repeats the password message response for every entry
other than a valid password until a valid password is entered.
]
Login Administrator
]
]
Login User
]
The switcher initiates the login message when a correct administrator or user
password has been entered. If the user and administrator passwords are the same,
the switcher defaults to administrator privileges.
Qik
]
The switcher initiates the Qik message when a front panel switching or preset recall
operation has occurred.
Spr
nn
]
The switcher initiates the Spr message when a memory preset has been saved from
the front panel. “
nn
” is the preset number.
In
nn
Aud
xx
]
The switcher initiates the Aud message when a front panel input audio level change
has occurred. “
nn
” is the input number and “
xx
” is the dB level.
Out
nn
Vol
xx
]
The switcher initiates the Vol message when a front panel output audio volume
change has occurred. “
nn
” is the output number and “
xx
” is the volume level.
Vmt
nn
*
x
]
The switcher initiates the Vmt message when a video output mute is toggled on
or off from the front panel. “
nn
” is the output number and “
x
” is the mute status:
1 = on, 0 = off.
