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3GPP TS 27.007 AT CO

MMANDS

AT Commands for EV-DO-EV3 Modems

Alarm Management +CALA

Set command stores in the internal Real Time Clock an alarm time with respective settings. It is possible to set up a

recurrent alarm for one or more days in the week.

Currently just one alarm can be set.

When the RTC time reaches the alarm time then the alarm starts, the behavior of the module depends upon the

setting <type> and if the device was already ON at the moment when the alarm time had come.

Read command returns the list of current active alarm settings in the ME, in the format:

[+CALA: <time>,<n>,<type>,[<text>],<recurr>,<silent>]

Test command returns the list of supported index values (currently just 0), alarm types, maximum length of the

text to be displayed, maximum length of <recurr> and supported <silent>s, in the format:

+CALA: (list of supported <n>s),(list of supported <type>s),<tlength>,

<length>,(list of supported <silent>s)

Syntax

Command Command type

AT+CALA=<time>[,<n>[,<type>[,<text>[,<recurr>[,<silent>]]]]] Set

AT+CALA? Read

AT+CALA=? Test

Parameters and Values

<time> Current alarm time as quoted string.

“” Empty string. Deletes the current alarm and resets all the +CALA

parameters to the default configuration.

"hh:mm:ss±zz" Format used only when issuing +CALA with parameter <recurr>.

"yy/MM/dd,hh:mm:ss±zz" Generic format: it’s the same as defined for +CCLK.

<n> Index of the alarm.

0 The only value supported is 0.

<type> Alarm behavior type.

0 Reserved for other equipment use.

1 The module simply wakes up fully operative as if the ON/OFF button

had been pressed. If the device is already ON at the alarm time, then it

does nothing. Default: 1.

2 The module wakes up in "alarm mode" if at the alarm time it was off,

otherwise it remains fully operative. In both cases the module issues an

unsolicited code every 3 seconds.

+CALA: <text>

where <text> is the +CALA optional parameter previously set.

The device keeps on sending the unsolicited code every 3 seconds until

a #WAKE or #SHDN command is received or a 90 seconds timer expires.

If the device is in alarm mode and does not receive the #WAKE

command within 90 seconds, it shuts down.

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