AT Commands F-41
AT Commands
-O
n Serial Port Parity
-O0
7 data bits, odd parity.
-O1
7 data bits, even parity.
-O2
7 data bits, mark parity.
-O3
7 data bits, space parity.
-O4
8 data bits, no parity.
-O5
8 data bits, odd parity.
-O6
8 data bits, even parity.
-O7
8 data bits, mark parity.
Allows you to change the serial port parity setting that is automatically set by the AT
sequence.
You can also use the -O command to change the serial port parity while connected to
a remote device. Use this command when the local device supports XON/XOFF flow
control and detects parity. This command ensures that all XON and XOFF characters
generated by the modem have the correct parity.
You cannot change the modem port parity during a connection. When parity is
required for a connection and is different than the parity set by the AT sequence, the
parity must be set at the same time the dial command is issued and issued on the same
command line.
Example
AT-O4D12345
NOTES
•
The AT sequence cannot be used to match 8 bit data with mark parity. Eight data
bits plus mark parity can only be set by the AT-O command. If -O7 is not set, the
modem defaults to 8 data bits, no parity.
•
The AT sequence cannot be used to match space parity; no parity is set instead.
You must issue AT-O3 to set space parity.
P Pulse Dial
Changes the current dialing mode to pulse. Tone dialing is the default.
$P Security Database Password
Allows you to change the password needed to edit the auto-logon sequences, Dial
Access and auto-logon commands, and Connection Security passwords. The default is
that no password has been set.
