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124 = Serial Protocols
41.37 INPUT CHECK ACK
44.00 TIMER 1 PRESET ACK
44.04 TIME CODE PRESET ACK
44.31 PRE-ROLL TIME PRESET ACK
41.33 SERVO REFERENCE SELECT ACK
N/A TIMER MODE STATUS ACK
7X.20 STATUS DATA 7X.20
N/A COMMAND SPEED SENSE 71.2E
40.48 REF VIDEO SELECT ON ACK
40.49 REF VIDEO SELECT OFF ACK
6X.0E CURRENT TIME SENSE ACK
ACK= 10.01 NAK=11.12.xx