Polycom C16 - Manual (Page 358)

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
A - 16
vcdef Acknowledgements
When a virtual channel definition command with the vcdef action is
successfully executed, SoundStructure will send an acknowledgement in the
same format as the command. The acknowledgement will be sent to all
interfaces.
As an example, consider two C16 linked via OBAM link, and assume that no
virtual channels are defined. If a control system connected to any of the
control interfaces of a SoundStructure device sends the following command:
vcdef "Stereo Mics" stereo mic_in 16 17
then the following acknowledgement will be generated and sent to all control
interfaces.
vcdef "Stereo Mics" stereo mic_in 16 17
As an example of creating a monaural microphone connected to input 8:
vcdef “Podium mic” mono cr_mic_in 8
And the system will respond with
vcdef “Podium mic” mono cr_mic_in 8
vclist Action
The vclist action returns the complete list of virtual channels that have been
defined with the vcdef action. The vclist action accepts no arguments and has
the following syntax:
vclist
vclist Acknowledgements
When the vclist command is executed, SoundStructure will send the
acknowledgement prefaced with vcitem in the following syntax:
vcitem <label> <vctype> <pctype> <num> [<num> ...] <term>
A vcitem acknowledgement will be received for each virtual channel that has
been defined. The acknowledgement will be sent to the interface that initiated
the request.
Each of the acknowledgement arguments is defined below.
<label>
The <label> argument is a user-defined text argument that specifies the name
of the virtual channel that was defined.
<vctype>
The <vctype> argument is a system-defined text argument that defines the
type of virtual channel that will be created. The list of vctypes is included in
the vcdef section.