Specifications

MC55 AT Command Set
18.6 AT^SSYNC
s
MC55_ATC_V03.03 Page 423 of 459 9/9/05
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18.6.1 ME status indicated by status LED patterns
The following table lists the possible patterns of status LED behavior, and describes the ME operating status indi-
cated by each pattern if AT^SSYNC parameter <mode>=1.
Please note that during the transition from one LED pattern to another the "on" and/or "off" periods of the LED
may vary in length. This is because an event that triggers the change may occur any time and, thus, truncate the
current LED pattern at any point.
Table 18.1: Modes of the LED and indicated ME functions
LED behavior ME operating status if AT^SSYNC=1
Permanently off ME is in one of the following modes: POWER DOWN mode, ALARM mode,
CHARGE ONLY mode, NON-CYCLIC SLEEP mode, CYCLIC SLEEP mode with
no temporary wake-up event in progress.
600 ms on / 600ms off Limited Network Service: No SIM card inserted or no PIN entered, or network
search in progress, or ongoing user authentication, or network login in progress.
75 ms on / 3 s off IDLE mode: The mobile is registered to the GSM network (monitoring control chan-
nels and user interactions). No call is in progress.
75 ms on / 75 ms off /
75 ms on / 3 s off
One or more GPRS PDP contexts activated.
500 ms on / 25 ms off Packet switched data transfer is in progress.
Permanently on 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.