Me Status Indicated By Status Led Patterns; Table 17.2: Modes Of The Led And Indicated Me Functions - Siemens MC55 Command Set

MC55 AT Command Set
17.6 AT^SSYNC
1
Note
• The selected
<mode>
17.6.1

ME status indicated by status LED patterns

The following table lists the possible patterns of status LED behavior, and describes the ME status indicated by
each pattern for
<mode>

Table 17.2: Modes of the LED and indicated ME functions

LED behavior
Off
600 ms on / 600ms off
75 ms on / 3 s off
75 ms on / 75 ms off /
75 ms on / 3 s off
Flashing
On
MC55_ATC_V01.05
Confidential / Released
of processing the signal. Your platform design must be such that the incoming
signal causes other components to draw less current. In short, this allows your
application to accommodate current drain and thus, supply sufficient current to
the GSM engine if required.
LED mode:
Enables the SYNC pin to drive a status LED installed in your application
according to the specifications provided in [2].
The coding of the LED is described in Chapter 17.6.1.
is stored to the non-volatile Flash memory, and thus retained after Power Down.
=1
parameter
AT^SSYNC
ME is off, or ME is running in Alarm mode or Charge-only mode or SLEEP mode
(cf. ).
AT+CFUN
ME is in full functionality mode (
entered; or the ME is in SLEEP mode or full functionality mode while network
search, user authentication or network login are in progress.
ME is registered to the GSM network (monitoring control channels and user inter-
actions). No call is in progress.
ME is in full functionality mode (
after characters have been detected on the serial interface in CYCLIC SLEEP
mode. The AT interface is fully accessible.
One or more GPRS contexts activated.
LED is on when data packets were exchanged in GPRS online mode during the
last second.
Depending on type of call:
Voice call: Connected to remote party.
Data call: Connected to remote party or exchange of parameters while setting up
or disconnecting a call.
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= 1
<mode>
= 1) and no SIM card inserted or no PIN
AT+CFUN
= 1) or in a "temporary wake-up state"
AT+CFUN
s
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obile
2/10/04