Polycom SoundStructure C16 Design Manual page 514

set ser_baud 1 9600
If the device ID is not specified, such as with the following example:
set ser_baud 9600
then this error message will occur.
What Does The Error "invalid parameter argument" Message Mean?
If the argument for the command is not correct, for instance trying to set the mute state of microphone to
the value 3 when the only valid values are 0 or 1, then this error message may occur.
Why Won't The Control System Mute The Microphones?
Check that the command from the control system isn't generating one of the error message described
above. Next ensure that the control system is connected to the SoundStructure device over RS-232 or
Ethernet and able to send commands to the SoundStructure device.
If muting the microphones by using the default virtual channel group "Mics", the syntax of the command
should be:
set mute "Mics" 1
and
set mute "Mics" 0
to mute and unmute, respectively the microphones. This command should generate a series of command
status messages that report the mute state of the individual virtual channels that are in the virtual channel
group as well as an overall status of the virtual channel groups mute status.
Remember that the API must be in lower case and that the virtual channel names are case sensitive.
I Muted All The Members Of My Virtual Channel Group, Why Don't I Get A Group
Acknowledgment That The Virtual Channel Group Is Muted?
The way that virtual channels and virtual channel groups work is that when a virtual channel group is muted
or the gain adjusted, for example, all the channels in the group get are set to the same value and all the
virtual channels in the group reply with command acknowledgments reflecting their new value. If the
members of the group are set to the same value, there is no command acknowledgment that comes from
the group. The only way to get a group acknowledgment is to send a command to the group.
Where Do I Get More Info About The API?
Appendix A in this manual describes the command API syntax and the file soundstructure-parameters.html
on the CD-ROM includes the full list of parameters that can be adjusted for the SoundStructure devices. The
full API can be found also by pointing your web browser at the IP address of the SoundStructure device.
Do Commands Need To Be In Upper Or Lower Case?
All API commands must be in lower case. Sending upper case commands will cause error messages to be
returned by the SoundStructure device.
Virtual channel and virtual channel group names can be in mixed case. Remember that virtual channel
names are case-sensitive - "Table Mic 1" and "table mic 1" are two different virtual channel names.
Polycom, Inc. 514