DCT Antares SB, Руководство пользователя

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3.2. LEDS
•
Initializing: This state lasts 15 seconds and is reached any time
the unit is recovering from a non-power situation or recovering
from a previous system reset. If the unit remains in this state
for a longer time you may have a hardware problem. In this
state the unit’s TAIP console will not respond to commands.
•
Signing-off the GSM/GPRS network: Before a system reset the
unit signs off the network, this procedure takes from 3 to 10
seconds. This procedure is also done before entering
sleep mode.
•
On sleep mode: The LED blinks very shortly on a 4 seconds
basis.
There is one exception for this type of situations when the LED is
blinking:
•
The Power LED is blinking at unison with the Signal LED:
This does not indicate a temporal lack of functionality but SIM
card’s initialization. This is a temporary state that should not
last more than 6 seconds and it may only happen after a system
reset. If it lasts longer you may have a hardware problem or a
defective SIM card.
3.2.2 Signal (Orange)
As long as the Power LED is solid ON, this LED indicates the GSM
registration status in the following way:
•
Solid: The unit is Not Registered on the GSM network.
•
Blinking: The unit is Registered on the GSM network.
•
Off: The unit is Registered with a very poor signal.
When the unit is GSM-registered, the Signal LED is either blinking
or completely off. By counting the number of blinks before a pause
the user can have an estimate of the
Received Signal Strength . See
the table below.
Blinks RSSI RSS
[(-)dBm]
0
(off)
0 to 7 113 - 99 Very poor
1 8 to 13 97 - 87 Poor
2 14 to 17 85 - 79 Fair
3 18 to 20 77 - 73 Fair
4 21 to 24 71 - 65 Good
5
(no pause)
25 to 31 63 - 51 Excellent
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