4-7
MTPX Plus Twisted Pair Matrix Switchers • Programmer’s Guide
Innn Audxx
]
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.
Outnn Volxx
]
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.
Amtnn*x
]
The switcher initiates the Amt message when an audio or RS-232 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.
Exen
]
The switcher initiates the Exe message when executive mode is toggled on or off
from the front panel. n is the executive mode: 0, 1, or 2.
Switcher Error Responses
When the switcher receives an SIS command and determines that it is valid, it
performs the command and sends a response to the host device. If the switcher
is unable to perform the command because the command is invalid or contains
invalid parameters, the switcher returns an error response to the host. The error
response codes are:
E01 — Invalid input channel number (too large)
E10 — Invalid command
E11 — Invalid preset number
E12 — Invalid output number (too large)
E13 — Invalid value (out of range)
E14 — Illegal command for this configuration
E17 — Timeout (caused only by direct write of global presets)
E21 — Invalid room number
E22 — Busy
E24 — Privileges violation (Users have access to all view and read
commands (other than the administrator password), and can
create ties, presets, and audio or RS-232 mutes
E25 — Device not present
E26—Maximumnumberofconnectionsexceeded
E27 — Invalid event number
E28—Badlename/lenotfound
