Grass Valley Performer SD - Manual (Page 157)

3-39
Serial Protocol Descriptions
Take Message
The take message is sent from the computer to the Serial Interface.
Take header ‘@’ (40H) byte 0
Destination tens byte 1
Destination ones byte 2
Source level 1 tens byte 3
Source level 1 ones byte 4
Source level 2 tens byte 5
Source level 2 ones byte 6
Source level 3 tens byte 7
Source level 3 ones byte 8
Source level 4 tens byte 9
Source level 4 ones byte 10
Checksum high nibble byte 11
Checksum lo nibble byte 12
Line Feed 0AH byte 13
Unused source levels should be sent as 00 (tens and ones bytes =
30H).