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 — Maximum number of connections exceeded

E27 — Invalid event number

E28 — Bad filename / file not found

MTPX Plus Twisted Pair Matrix Switchers • Programmer’s Guide

4-7

Page 101
Image 101
Extron electronic MTPX Plus Series manual Switcher Error Responses, E26 Maximum number of connections exceeded