Datasheet

INSYS GSM 4.2 I4 Overview
18 Dez-06
2.7 Interfaces, Display and Control Elements
The device has 6 LEDs for status displays and one reset key on the front.
2.7.1 Display elements
Each device has 6 LEDs on the front.
LED Color On Off Blinking Flashing
Power Green Supply OK No supply
Status Yellow GSM engine
logged into
network*
GSM engine not
logged into
network*
Data connection
Alternate blinking
with LED Connect, or
LED DCD: Factory
settings loaded
Initialization,
Processing of
alarms ,
Dispatch of
periodic alive
SMS, SMS poll-
ing and power
up SMS
Connect Yellow Data connec-
tion established
No data connec-
tion established
Alternate blinking
with LED state: Fac-
tory settings loaded
RX Green Exchange of
data via RS232
No data ex-
change
TX Green Exchange of
data via RS232
No data ex-
change
Signal Green Best GSM signal
(field strength)*
GSM signal
(field strength)
too low*
Blinking interval
depending on GSM
signal (field
strength)*:
The higher the blink-
ing frequency, the
better the signal.
(see Chap. 3.9)
Blinking in intervals
of seconds during
the flash update
*) The periodical query of the login state and the GSM field strength must be active (command
AT**GSMREQ).