User guide

SMX System MultiMatrix Switcher • SIS Configuration and Control 36
SIS Programming Guide
Host-to-SMX and SMX-to-Host Communications
SIS commands consist of one or more characters per field. No special characters are
required to begin or end a command sequence. When the SMX determines that a
command is valid, it executes the command and sends a response to the host device. All
responses from the switcher to the host end 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-initated messages are listed below.
With an RS-232 or RS-422 connection to a computer (upon power up):
(c) Copyright 2009, Extron Electronics SMX, Vx.xx, 60-XXX-01]
Reconfig]
With an Ethernet connection:
(c) Copyright 2009, Extron Electronics SMX, Vx.xx, 60-XXX-01]
Ddd, DD MMM YYYY HH:MM:SS (day, date time as in Tue, 14 Apr 2009 14:43:17)
The SMX initiates the copyright message when powered on or when connection via Internet
Protocol (IP) is established. Vx.xx is the firmware version number.
]Password:
The SMX initiates the password message immediately after the copyright message when
the controlling system is connected using TCP/IP or Telnet and the SMX is password
protected. The SMX requires an administrator or user level password before performing the
commands entered.
NOTE: The Password prompt is re-displayed if an incorrect password is entered.
]Login Administrator]and]Login User]
The SMX 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 SMX initiates the Qik message after front panel switching.
Rprnn]
The SMX initiates the Rpr message when a memory preset has been recalled from the front
panel. “nn” is the preset number.
Sprnn]
The SMX initiates the Spr message when a memory preset has been saved from the front
panel. “nn” is the preset number.
Reconfig]
The SMX sends the Reconfig message whenever power is cycled, the plane address is
changed, or the output board is installed or uninstalled.
NOTE: The response given is seen via an RS-232 or RS-422 connection only.
ppInnn Audxx]
The SMX initiates the Aud message when a front panel input audio level change has
occurred. “pp” is the plane address, “nn” is the output number, and “xx” is the dB level.