Kramer Electronics VS-44HDCP - Manual (Page 30)

VS-44HDCP - Protocol 3000 27
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12.1.2 Device Message Format
Start Address (optional) Body delimiter
~ device_id@ Message CR LF
12.1.2.1 Device Long Response
Echoing command:
Start Address (optional) Body Delimiter
~ device_id@ Command SP [ Param1 ,Param2 …] result CR LF
CR = Carriage return (ASCII 13 = 0x0D)
LF = Line feed (ASCII 10 = 0x0A)
SP = Space (ASCII 32 = 0x20)
12.1.3 Command Terms
Command
A sequence of ASCII letters ('A'-'Z', 'a'-'z' and '-').
Command and parameters must be separated by at least one space.
Parameters
A sequence of alphanumeric ASCII characters ('0'-'9','A'-'Z','a'-'z' and some special
characters for specific commands). Parameters are separated by commas.
Message string
Every command entered as part of a message string begins with a message
starting character and ends with a message closing character.
Note: A string can contain more than one command. Commands are separated by
a pipe ( '|' ) character.
Message starting character
'#' – For host command/query
'~' – For device response
Device ID (Optional, for K-NET)
K-NET Device ID followed by '@'
Query sign
'?' follows some commands to define a query request.