INSYS GSM small 2.0
Display and Control Elements
LED
Colour
On
Blinking:
Flashing:
Off
green
Power supply is present - - -
- - -
orange
Device is in Power-
Down mode
- - -
Data is being trans-
ferred; LED
flashes/flickers in
time with incom-
ing/outgoing data
Power /
RX/TX
red
- - -
- - -
- - -
Power
supply is
not pre-
sent
green
Only with setting
AT&C1
(default):
Connection establish-
ment
Remote terminal has
picked up; connection
handshake takes place
With setting
AT&C1
(default):
Timing: 600 ms on
/ 600 ms off
Device is not reg-
istered with the
GSM network
(e.g. network loss,
no SIM card in-
serted or no PIN
entered.
With setting
AT&C1
(default):
Timing 75 ms on /
3 s off
Device is regis-
tered with the
GSM network
orange
If Power / Rx/Tx LED
also orange:
Device is in Power-
Down mode,
otherwise:
Both,
AT&C1
and
AT&C0
:
Data connection is estab-
lished, thus DCD is active
Additionally with set-
ting
AT&C0
:
Connection establish-
ment
Remote terminal has
picked up; connection
handshake takes place
Net /
DCD
red
- - -
Only with setting
AT&C0:
Timing 600 ms
orange / 600 ms
red
Device is not reg-
istered with the
GSM network
(e.g. network loss,
no SIM card in-
serted or no PIN
entered.
Timing:
75 ms orange /
75 ms red /
75 ms orange /
3 s red
GPRS context ac-
tive (idle connec-
tion)
Timing:
0.5 s orange /
0.5 s red
GPRS data transfer
active
Power
supply is
not pre-
sent
Table 4: Meaning of the LED displays
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