Xn
Commands - Click Here
&Xn
Commands - Click Here
\Xn
Commands - This Page
%Xn
Commands - Click Here
OtherXn
Commands - Click Here
(Please note that this is the
basic AT Command set. Many modems do NOT conform to this command set.
However, most of these commands remain the same, or similar from modem to
modem.)
Quickly Referenced Commands
\An
- "Max Transmit Block Size"
\Bn
- "Send Break"
\Cn
- "Auto-Reliable Time Buffer"
\En
- "Data Echo"
\Gn
- "Flow Control"
\Jn
- "Serial Port Operation"
\Kn
- "Break Type Select"
\Ln
- "MNP Mode Select"
\Nn
- "Connection Type"
\O -
"MNP Reliable Mode Initiation"
\Qn
- "Flow Control Type Select"
\Tn
- "Inactivity Timer"
\U -
"MNP Reliable Mode Acceptance"
\Vn
- "Set Extended Result Codes"
\Wn
- "v.23 Split Speed Control"
\Xn
- "XON/XOFF Pass Through"
\Y -
"Reliable Mode Conversion"
\Z -
"Normal Mode Activation"
Verbosely Referenced
Commands
\An
- "Max Transmit Block Size" - This command
specifies the maximum transmittable MNP block size.
\A0
- 64 characters
\A1
- 128 characters
\A2
- 192 characters
\A3
- 256 characters
\Bn
- "Send Break" - Sends a break to the modem.
Values range from 1-9, where 1 is .1 seconds and 9 is .9 seconds.
\Cn
- "Auto-Reliable Time Buffer" - During auto-relaible
mode this command controls how incoming data is handled.
\C0
- Data is be discarded
\C1
- Data is to be buffered
\C2
- Data is to be discarded (modem returns to normal mode after
receiving the auto-reliable fallback character)
\En
- "Data Echo" - Selects whether or not the
modem echoes received data.
\E0
- Disabled
\E1
- Enabled
\Gn
- "Flow Control" - Selects whether or not the
modem port uses flow control.
\G0
- Disabled
\G1
- Enabled
\Jn
- "Serial Port Operation" - Selects how the
serial port speed is handled.
\J0
- Serial port speed remains locked
\J1
- Serial port speed is to follow the connect speed
\Kn
- "Break Type Select" - Configures the action
taken by the break signal.
\K0
- When the modem receives a break from the remote modem: The buffers
are cleared and a break is sent to the DTE. When the modem receives a
break from the DTE: Online command mode is enabled, and no break is sent to the
remote modem. When the modem receives a break from \B: A break is
sent to the remote modem and the buffer is cleared.
\K1
- When the modem receives a break from the remote modem: The buffers
are cleared and a break is sent to the DTE. When the modem receives a
break from the DTE: A break is sent to the remote modem and the buffers are
cleared. When the modem receives a break from \B: A break is sent to the
remote modem and the buffer is cleared.
\K2
- When the modem receives a break from the remote modem: A break is
sent immediately to DTE. When the modem receives a break from the DTE:
Online command mode is enabled, and no break is sent to the remote modem.
When the modem receives a break from \B: A break is immediately sent to the
remote modem.
\K3
- When the modem receives a break from the remote modem: A break is
sent immediately to DTE. When the modem receives a break from the DTE: A
break is sent immediately to the remote modem. When the modem receives a
break from \B: A break is immediately sent to the remote modem.
\K4
- When the modem receives a break from the remote modem: A break is
sent to the DTE with the received data. When the modem receives a break
from the DTE: Online command mode is enabled, and no break is sent to the remote
modem. When the modem receives a break from \B: A break is sent with the
transmitted data.
\K5
- When the modem receives a break from the remote modem: A break is
sent to the DTE with the received data. When the modem receives a break
from the DTE: A break is sent with the transmitted data. When the modem
receives a break from \B: A break is sent with the transmitted data.
\Ln
- "MNP Mode Select" - This option selects the
MNP link transfer mode.
\L0
- Stream mode
\L1
- Block mode
\Nn
- "Connection Type" - This command will control
which type of connection that the modem will operate in.
\N0
- Normal mode
\N1
- Direct mode
\N2
- MNP reliable mode
\N3
- Auto-reliable or MNP auto-reliable mode
\N4
- v.42 reliable mode
\N5
- v.42 auto-reliable or MNP auto-reliable mode
\N6
- Reliable mode
\N7
- Auto-reliable mode
\O -
"MNP Reliable Mode Initiation" - From normal or
direct mode this command will initiate MNP reliable mode.
\Qn
- "Flow Control Type Select" - This command
will select the type of flow control that the modem will operate with.
\Q0
- Disable flow control
\Q1
- Bi-directional XON/XOFF
\Q2
- CTS flow control by DCE
\Q3
- Bi-directional RTS/CTS
\Q4
- Unidirectional XON/XOFF by DCE
\Q5
- CTS forced low for pre-connection, then CTS by DCE control takes
over, or unidirectional XON/XOFF by DTE will
\Q6
- Bi-directional RTS/CTS or RTS by DTE after connection
\Tn
- "Inactivity Timer" - This command will tell
the modem how long to wait before disconnecting after not receiving any
information. Measured in seconds the value of n can be 0-255.
\U -
"MNP Reliable Mode Acceptance" - This command will
tell the modem to accept a remote modem's request for MNP reliable mode.
\Vn
- "Set Extended Result Codes" - Sets whether or
not extended result codes are enabled or not.
\V0
- Disabled
\V1
- Enabled
\Wn
- "v.23 Split Speed Control" - This command
determines whether v.23 split speed control will be used or not.
\W0
- Disabled
\W1
- Enabled
\Xn
- "XON/XOFF Pass Through"
- This command determines whether or not XON/XOFF signals are sent to
the remote modem.
\X0
- Not sent
\X1
- Sent
\Y -
"Reliable Mode Conversion" - This command will
convert to reliable mode from normal mode or direct mode.
\Z -
"Normal Mode Activation" - This command will switch from
MNP mode to normal mode.
This page was last modified on Saturday, 05-Feb-2011 15:11:02 EST.
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