iRZ ES75iT, Руководство пользователя

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2.6. Modem status display
Two LEDs indicate current working mode (connection status) or signal for an emergency. This function may
be disabled by the following AT-command: AT^SSYNC (AT^SSYNC=1 — on; AT^SSYNC=0 — off). By default,
AT^SSYNC=1.
Table 2.6.1: Operation mode display (green LED)
Display mode Conventional indication
display Operation mode
Turned off
○
Modem is turned off or is in the emergency status
600ms on / 600ms off
●●●●●● ○○○○○○
Modem has not been registered online
75ms on / 3s off
● ○○○○○○○○○
...
○
Modem has been registered online
75ms on / 75ms off / 75ms on /
3s off
● ○ ● ○○○○○○○
...
○
GPRS/EDGE connection has been established
500ms on / 50ms off
●●●●● ○
Data transmission under way
250ms on / 10s off
●●● ○○○○○○○
...
○
Modem is in the sleep mode, the alarm mode
250ms on / 250ms off
●●● ○○○
Programming mode, menu mode
Permanently turned on
●
Voice call, CSD
Configurations of display mode with "AT^SSYNC=2" and "AT^SSYNC=1" is differ only by power saving
mode. For more information, see GSM module documentation.
Table 2.6.2: Emergency display (red LED)
Display mode Conventional indication display Emergency description
Permanently turned on
●
Invalid input voltage
0.5s on / 0.5s off
●● ○○
Invalid module power supply
0.25s on / 0.25s off / 0.25s on /
1s off
● ○ ● ○○○○
GSM module has not turned on
0.25 s on / 0.25 s off
/ 0.25s on / 0.25s off / 0.25s on
/ 1s off
● ○ ● ○ ● ○○○○
COM-port is not ready
For descriptions of emergency situations see Part 4.