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Appendices ~ Appendix E: Serial Commands

NOM

This command changes or reports back state of NOM attenuation for each channel.

[DEVICE] NOM <CH> <X>

Explanation

<CH>

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>

 

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

OFFA

This command changes or reports back the setting of off attenuation.

[DEVICE] OFFA <X>

Explanation

<X>

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.

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

PAA

This command selects or returns the current status of the PA adaptive mode.

[DEVICE] PAA <X>

Explanation

<X>

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

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

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.

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ClearOne comm AP400 operation manual Nom, Offa, Null, Paa