Extron electronic ISM 482 manual Host-to-Switcher Instructions, Switcher Error Responses

Host-to-Switcher Instructions

The switcher accepts SIS commands through its RS-232 port and/or its Ethernet port. SIS commands consist of one or more characters per command field. 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 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 (zero or too large)

E12 — Invalid output number (zero or too large)

E13 — Invalid value (out of range)

Using the Command and Response Table

The command/response table begins on the next page. Except for the gain and attenuation settings and the filter settings, upper or lower case letters are acceptable in the command field. The table below shows the hexadecimal equivalent of each ASCII command.

NOTE: With the exception of the audio gain and attenuation (G and g) and horizontal and vertical filtering (D and d) commands, the SIS commands are not case sensitive.

ASCII to Hex Conversion Table

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ISM 482 Integrated Scaling Matrix Switcher • Programming Guide 37