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DSC-initiated Messages
When a local event such as a front panel selection or adjustment takes place, the
DSC scaler responds by sending a message to the host. No response is required from the
host. Example scaler-initiated messages are listed here.
• Reconfig ]
The DSC sends this response when a change in the input frequency is detected.
• HplgO ]
The DSC 3G-HD A sends this response when a hot plug event on the output is
detected (for example, when the unit is unplugged and reconnected).
Error Responses
When the DSC receives a valid command, it executes the command and sends a
response to the host device. If the unit is unable to execute the command because the
command contains invalid parameters, it returns an error response to the host.
E01 — Invalid input number
E06 — Invalid switch attempt in this mode
E10 — Invalid command
E11 — Invalid preset number
E12 — Invalid port number
E13 — Invalid parameter
E14 — Invalid command for this configuration
E17 — Invalid command for signal type
E22 — Busy
Using the Command and Response Table
The Command and Response Table for SIS Commands, beginning on page 49, lists
the commands that the DSC scaler recognizes as valid, the responses that are returned to
the host, a description of the command function or the results of executing the command,
and an example of each command in ASCII.
NOTE: Unless otherwise stated, upper- and lowercase text can be used interchangeably in the
commands.
ASCII to HEX Conversion Table
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Figure 28. ASCII to Hexadecimal Character Conversion Table
DSC 3G-HD A and DSC HD-3G A • Remote Configuration and Control 42