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Display and Control Elements
5.1
Meaning of the Displays
Description
Power LED
Status LED
Connect LED
RX/TX LED
Signal LED
Table 4: Meaning of the LED displays
Flashing Rate LED Signal
Always on
16.7 Hz (very quick)
7.1 Hz
3.8 Hz
2.6 Hz (slow)
off
Table 5: Flashing code of the Signal LED
18
Display
LED on
LED off
LED on
LED flashes
LED flashes quickly
LED off
LED on
LED off
LED on
LED off
LED on
LED flashes
LED off
Value
25 .. 31
23 .. 24
21 .. 22
19 .. 20
17 .. 18
<17 or 99 (not detectable)
Meaning
Supply voltage available
No supply voltage
INSYS GSM 4.3 I4 is logged in
into the cellular network
Data connection established
Initialization, SMS dispatch,
alarm processing
INSYS GSM 4.3 I4 is not
logged in into the cellular
network
Connection to remote termi-
nal is established
No connection to remote
terminal
INSYS GSM 4.3 I4 transmits
data via the serial interface
No data is transmitted via
the serial interface
GSM reception perfect
Flashing frequency indicates
the quality of the GSM re-
ception (refer to Table 5).
No GSM reception
Signal Quality
Optimum
Very good
Good
Poor
Insufficient
INSYS GSM 4.3 I4
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