Xircom EAG2919 사용자 설명서
Eagle II GSM Radio Module Technical Manual Preliminary Draft: 08/31/00
28
Part Number: 07100017 version 00.04
© 2000 Xircom, Inc. All rights reserved.
All trademarks and copyrights are the property of Xircom, Inc.
All trademarks and copyrights are the property of Xircom, Inc.
INITIALIZATION AND SETUP EXAMPLES
In the GSM vocabulary, a call from GSM mobile to the PSTN is called a "mobile-
originated call" or "outgoing call." A call from the fixed network to a GSM mobile is called
a "mobile-terminated call" or "incoming call."
originated call" or "outgoing call." A call from the fixed network to a GSM mobile is called
a "mobile-terminated call" or "incoming call."
In the following examples, “App” refers to the application. The following convention
describes the direction of the data exchange:
describes the direction of the data exchange:
!
The data exchange from the customer application to the Eagle II module is
designated as: App > Eagle
designated as: App > Eagle
!
The data exchange from the Eagle II module to the customer application is
designated as: Eagle> App
designated as: Eagle> App
Note: With the exception of the +++ command (Online Escape Sequence), all
commands must be preceded by the AT attention code (or command prefix) and
terminated by pressing the <CR> character.
commands must be preceded by the AT attention code (or command prefix) and
terminated by pressing the <CR> character.
In the following examples, the <CR> and <CR><LF> are intentionally omitted for
clarity and space.
clarity and space.
Initial Response to the AT Command
After power is applied to the Eagle II module, the module performs a power-up self-test.
The self-test completes within TBD seconds. When queried with the AT command, the
Eagle II module responds with one of the following result codes:
The self-test completes within TBD seconds. When queried with the AT command, the
Eagle II module responds with one of the following result codes:
!
OK signifies that the Eagle II module is ready, that it correctly interprets the AT
command, and that it can execute the command.
command, and that it can execute the command.
!
ERROR signifies that the Eagle II module does not understand the command or that
the command is invalid.
the command is invalid.
App > Eagle
AT
Eagle > App
OK
Command valid: module is ready
The Eagle II module must be in Command mode when any command is entered (with the
exception of the online escape sequence +++). Commands entered when the module is
in Online mode are treated as data, and are transmitted as such to the receiving module.
exception of the online escape sequence +++). Commands entered when the module is
in Online mode are treated as data, and are transmitted as such to the receiving module.