User’s Guide AT Command Reference
2110212 Rev 1.0 Page 103
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
0 Automatic 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.