User’s Guide

 

AT Command Reference

Table 12-3: AT [+] Commands in CDPD Mode

 

 

Command

Description

 

 

+IPR=<n>

I/O Port Rate (DTE speed)

 

Sets the communication speed between the host (DTE) and the DART 300 modem. A modem

 

reset (equivalent to +WVRESET) is part of the execution of this command so de-registration may

 

occur. If auto-registration is enabled (+WS173=1) then the modem will re-register upon

 

completion of the command.

 

The result code is issued at the original speed setting. The new setting takes effect after the reset.

 

Var.

Range

 

n

300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600.

 

Result Codes:

 

OK

parameter accepted and modem resetting.

 

ERROR Invalid parameter.

 

 

+WCID

Display the System ID (SPNI).

 

Returns the Service Provider Network Identifier (SPNI). A return value of 00 indicates no current

 

connection.

+WPCHAN=[n] Set Modem Channel

The modem tunes to channel n, and stays locked on this channel.

The setting is not preserved on modem reset and is not saved with &W. If you need a channel lock it must be set explicitly each time the modem is started.

Value Meaning

0Automatic Channel Selection (Default)

1– 1023 User Selected Channel

+WPCURNEI Current NEI

Returns the NEI (in dotted IP format) pointed to by +WS176 (Auto-register NEI Index). This should be the current or last registered NEI.

It is possible to change the index pointer in +WS197 (Active NEI Index) without altering the current NEI. See also +WPNEI?

+WPDEREG De-register

The NEI indexed by +WS197 (Active NEI Index) is de-registered from the network. This has no effect if the NEI is already de-registered.

This command will execute without clearing the send buffers or gracefully closing a TCP session. The onus is on the user to ensure communications are complete and sessions closed prior to de- registration.

NOTE: If the index value in +WS197 has been changed since registration then the original NEI remains registered.

+WPEID Equipment Identifier

Returns the modem’s unique CDPD equipment identification code in dotted-decimal and Hexadecimal notation.

Response:

000.160.213.ddd.ddd.ddd 00-A0-D5-hh-hh-hh

The first three components (000.160.213 and 00-A0-D5) form the manufacturer identifier (Sierra Wireless, Inc.) portion of the EID. The latter three components form the electronic serial number of the modem.

2110212 Rev 1.0

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Sierra Wireless DART 300 manual AT + Commands in Cdpd Mode, Command Description +IPR=n