Setup guide

Connector Pinouts and Connections
105
Supported Optional VDCP Commands
The following commands are implemented in Avid products for the VDCP protocol. Avid
supports all required VDCP commands, plus the following optional commands. In addition, Avid
supports fixed 8 and variable length IDs up to 31 characters.
The AirSpeed 5000 responds with an ACK upon successful completion of the commands listed
in the following table. In the event of a transmission error, the AirSpeed 5000 responds with a
NACK followed by a status byte.
Supported Optional VDCP Commands
Command Description
0x.0C - LOCAL DISABLE Not currently implemented. Server returns an ACK.
0x.0D - LOCAL ENABLE Not currently implemented. Server returns an ACK
0x.15 - DELETE PROTECT This command prevents an ID from being deleted by an ID DELETE command. An
UNPROTECT command must be used to enable DELETE ID once the ID is
protected. The PROTECT ID command has no effect on the ID being played or
copied.
0x.16 - DELETE
UNPROTECT
This command is the opposite of Protect ID and allows the ID to be deleted but does
not delete the ID by itself. This command has no effect on the ID being played or
copied.
1x.04 - STILL/PAUSE The STILL command causes the currently playing ID to pause. The last frame played
prior to receiving the STILL command will continue being displayed. The output
port must be in the PLAY, or in the CUED state.
1x.05 - STEP The STEP command causes the currently playing and paused ID in STILL state or in
a play state to advance to the next frame and STILL. The output port must be in a
PLAY, CUED, or STILL state or an error will be logged. This is equivalent to JOG
with +1 data.
1x.06 - CONTINUE The CONTINUE command causes the ID currently in the STILL state to continue
playing. The output port must be in a PLAY, CUED, or STILL state or an error will
be logged.
1x.07 - JOG The JOG command causes the controlled device to move the specified number of
frames forward or backward with respect to its current position.
1x.08 - VARIABLE PLAY When the VARIABLE PLAY command is received the controlled device will start
running in accordance with the speed and direction data defined in SEND DATA-1,
SEND DATA-2, and SEND DATA-3.