User manual

RLXIC-SV ♦ Intelligent Cellular Data Communication and Host Modes
RadioLinx Intelligent Cellular Serial Modem for the Verizon Wireless CDMA Network User Manual
Page 60 of 146 ProSoft Technology, Inc.
May 29, 2009
 UDP and UDP PAD: Any data received on the serial port is assembled into
UDP packets, and sent to the session's associated IP address and Port
(described later). Any responses received from the associated IP address
and port destined for the Device Port are unwrapped, and sent out the serial
port.
 TCP and TCP PAD: Any data received on the serial port is packaged into
TCP messages, and sent to the associated connection's IP address and Port
(described later). Any data received from the TCP peer is unwrapped and
sent out the serial.
7.1.3 Data Communication
 Public and Private Modes: The method used by the RLXIC-SV to pass an
IP address to a connected device.
 Keepalive: How the RLXIC-SV maintains its connection to the cellular
network.
7.2 Basic Modes
7.2.1 Start up Mode
The serial port of the RLXIC-SV can be configured to enter any of the modes
automatically on power up (in most cases, this is also after it has registered on
the cellular network). This is done by setting the Startup Mode Default to the
desired mode. If this setting is non-zero, the modem will enter the specified mode
after 5 seconds. If you want to cancel this behavior, the ATMD0 command can
be used before the 5-second time-out expires.
You can configure the Startup Mode in AceManager at part of the UDP
group.
 If the serial port of the RLXIC-SV is in any mode other than AT or PassThru,
the AT command mode can be re-entered by:
 Deactivating DTR (if &D2 or Ignore DTR, S211, is not set).
 Issuing the +++ escape sequence (if Disable AT Escape, DAE, is not set).
 Resetting or Power cycling the modem.
Note: DTR needs to be asserted (S211=1 or &D0) by the host before PPP Mode, SLIP Mode, UDP
PAD Mode, or TCP PAD Mode can be entered.