RLXIC-SG
♦
Intelligent Cellular
Data Communication and Host Modes
RadioLinx Intelligent Cellular Serial Modem for Global GPRS/GSM
User Manual
Page 54 of 136
ProSoft Technology, Inc.
May 29, 2009
7.2.3 PassThru
Mode
In PassThru mode, the RLXIC-SG does not behave normally, all port
communication is passed directly between the internal hardware and the
computer connected directly to the modem. This mode can be used to configure
hardware-specific settings. For example, provisioning, troubleshooting,
communicating with legacy equipment, etc.
Caution:
ALEOS is disabled in PassThru Mode. You cannot use most ALEOS specific commands
while the modem is in PassThru Mode.
Issuing the "
AT\APASSTHRU
" from a terminal emulation enters this mode. The
modem responds with OK, at which point a direct connection to the internal
hardware is established. You can also configure the modem to enter PassThru
mode on start up using
MD
.
Tip:
PassThru can only be exited by resetting or power-cycling the modem. This mode cannot be
entered via a remote Telnet session.
You can configure a string of AT commands to be sent to the RLXIC-SG when it
enters PassThru, and other PassThru settings.
PassThru Mode allows only specific AT commands. Some ALEOS commands
will be unavailable when the RLXIC-SG is in PassThru mode. The commands
usable also depend heavily on the modem model number (found on the label on
the top of the RLXIC-SG).
Note:
Some internal hardware requires upwards of 20 seconds before AT commands can be
entered, so be patient if there seems to be no response to AT commands.
Summary of Contents for RLXIC-SG
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