GS25, Operation
42
Signal
strength
LED
SLG1 with Telit
UC864-G
red
call is in progress.
red: long flash, long
break
no SIM card inserted, no PIN
entered or network search, user
authentication or network login
in progress.
red: short flash,
long break
logged on to network, no call in
progress.
red: flashing red,
long break
GPRS PDP context activated.
red: long flash,
short break
Packet switched data transfer is
in progress.
off
device is off.
SLR5-2 with
Satelline M3-TR1
red
the communication link,
D
ata
C
arrier
D
etection, is okay on the
roving instrument.
flashing red
the communication link,
D
ata
C
arrier
D
etection, is okay on the
roving instrument, but signal is
weak.
off
the DCD is not okay.
Power LED any device
off
power is off.
green
power is okay.
IF the
on
is
THEN
