Figure 2.1. GSM-FXS Gateway SPELSO L
3. Status Indication
LED indicators are located on the gateway front panel:
– Power - power indicator;
– Net - indicator of GSM cellular network signal level;
– Talk - telephone line status indicator.
Table 3.1 GSM Gateway indicator status
Indicator
Status
Description
Power
Light off
Power off
Green light on
Power on
Net
Light off
GSM module disabled
Flashing green light GSM gateway on
Flashing red light
SIM card absence or registration error
Red light on
Low signal level of cellular network
Flashing red and
green light
Medium signal level of cellular network
Green light on
High signal level of cellular network
Talk
Light off
Receiver is in cradle (line is free)
Green light on
Receiver out of cradle (line is busy)
Red light on
"CALL" signal
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