PAD Channel Selection

The &O command moves the modem from the AT command state to the PAD command state to issue PAD commands. The optional channel number identifies the desired virtual channel number. If the virtual channel number is zero (&O0), or not specified (&O), the last channel number accessed is used. Each time &O is issued, it resets the current PAD before it enters the PAD command state (provided a virtual connection is established).

Once the PAD command state is entered, use the CHAN command to switch among the PAD command states of the four virtual channels.

If an X.25 connection has already been established and you have escaped to the AT command state, the PROTOCOL and CONNECT result codes are transmitted to your terminal. The ERROR result code is transmitted if the modem is online but not in X.25 mode (e.g., modem is in error-control/LAPB mode).

Example of &O command use:

String               Result Code/Explanation                                    

AT&O1 <CR>   		OK (PAD channel 1 selected)                                

AT&O9 <CR>   		ERROR (value entered is out of available range)

See &On - PAD Channel Selection command.

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