Sierra Wireless 20070914 - Manual (Page 147)

Configuration Commands
Rev 3.0B Feb.08 134
MDhh
Default power‐up mode for the serial port: When the PinPoint
X modem is power‐cycled, the serial port enters the mode
specified by this command after 5 seconds. On startup, typing
ATMD0 within 5 seconds changes the mode to normal (AT
command) mode. See also S53 to set the port for UDP or TCP.
• hh (hex byte)=00 : normal
• hh=01 : SLIP
• hh=02 : PPP
• hh=03 : UDP
• hh=04 : TCP
• hh=07 : PassThru
• hh=0F : PinPoint MDT
• hh=13 : Modbus ASCII
• hh=23 : Modbus RTU (Binary)
• hh=33 : BSAP
• hh=63 : Variable Modbus
• hh=73 : Reliable UDP
• hh=83 : UDP Multicast
S82=n
Enables UDP auto answer (half‐open) mode.
• n=0 : Normal mode
• n=2 : Enable UDP auto answer mode.
S83=n
Set or query UDP auto answer idle time‐out. If no data is sent
or received before the time‐out occurs, the current UDP session
will be terminated. While a session is active, packets from
other IP addresses will be discarded (unless *UALL is set).
• n=0 : No idle time‐out (Default).
• n=1 ‐ 255 : Time‐out in seconds.
*DU=n
The dial command always uses UDP, even when using ATDT.
• n=0 : Dial using the means specified (default).
• n=1 : Dial UDP always, even when using ATDT.
Note: When this parameter is set you cannot establish a TCP PAD
connection.