ClearOne AP400 - Manual (Page 64)

Appendices ~ Appendix E: Serial Commands 60
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NOM
This command changes or reports back state of NOM
attenuation for each channel.
[DEVICE] NOM
Explanation
CH= 1-4 Parameter to apply to the specified direct
output channel
CH= A-D, T Parameter to apply to the specified line
output
X=0 Parameter to set NOM attenuation to OFF
X=1 Parameter to set NOM attenuation to ON
X=Null Parameter to return the current state of
NOM attenuation
Return Values
The command will return the updated condition (On=1,
Off=0) of NOM attenuation for the selected channel in the
same format as the command.
NULL
This command sends a short noise burst down the telephone
line and forces the AP400 to adapt to the telephone line.
[DEVICE] NULL
Return Values
If the NULL succeeds, the following is returned out the serial
port: [DEVICE] NULL
If the NULL fails, the following is returned out the serial port:
[DEVICE] NULL
OFFA
This command changes or reports back the setting of off
attenuation.
[DEVICE] OFFA
Explanation
X=0-50 Parameter to set the amount of off attenuation
(in dB)
X=Null Parameter to return the current value of off
attenuation
Return Values
The command will return the updated value of off attenuation in
the same format as the command.
PAA
This command selects or returns the current status of the PA
adaptive mode.
[DEVICE] PAA
Explanation
X=0 Parameter to select PA adaptive mode to OFF
X=1 Parameter to select PA adaptive mode to ON
X=Null Parameter to return the current mode
Return Values
The command will return the updated condition (On=1, Off=0)
of the PA adaptive mode in the same format as the command.