Kramer VP-440

Kramer Electronics Ltd.
VP-440 – Protocol 3000
44
Kramer Protocol 3000 Syntax
The Kramer Protocol 3000 syntax uses the following delimiters:
• CR = Carriage return (ASCII 13 = 0x0D)
• LF = Line feed (ASCII 10 = 0x0A)
• SP = Space (ASCII 32 = 0x20)
Some commands have short name syntax in addition to long name syntax to enable faster
typing. The response is always in long syntax.
The Protocol 3000 syntax is in the following format:
• Host Message Format:
Start
Address (optional)
Body
Delimiter
#
Device_id@
Message
CR
• Simple Command – Command string with only one command without addressing:
Start
Body
Delimiter
#
Command SP
Parameter_1,Parameter_2,…
CR
• Command String – Formal syntax with command concatenation and addressing:
Start
Address
Body
Delimiter
#
Device_id@
Command_1
Parameter1_1,Parameter1_2,…|
Command_2
Parameter2_1,Parameter2_2,…|
Command_3
Parameter3_1,Parameter3_2,…|…
CR
• Device Message Format:
Start
Address
(optional)
Body
Delimiter
~
Device_id@
Message
CR LF
• Device Long Response – Echoing command:
Start
Address
(optional)
Body
Delimiter
~
Device_id@
Command SP [Param1,Param2 …] result
CR LF
Protocol 3000 Commands
Command
Description
#
Protocol handshaking.
AUD-EMB
Set audio in video embedding status.
AUD-EMB?
Get audio in video embedding status.
AUD-LVL
Set volume level.
AUD-LVL?
Get volume level.
AV-SW-MODE
Set input auto switch mode (per output).
AV-SW-MODE?
Get input auto switch mode (per output).
BUILD-DATE?
Get device build date.