Insys GSM LOGO 4.2 Compact 11-02-01-03-04.001 Manuale Utente
Codici prodotto
11-02-01-03-04.001
INSYS GSM 4.2 LOGO!
Commisioning
Dezember 06
29
4.5
Signal Quality
The signal quality at the receiving location is scanned using the Detect GSM
intensity
intensity
button on the Basic Settings tab or the AT**SIGNAL AT command. The
reply should supply a value greater than 12 (maximum is 31). If the receiving
conditions are below this criterion, relocate the antenna. If the reply contains a
value of 99, the field strength cannot be determined (e.g., a power failure
occurred or the antenna is defective).
The Signal LED indicates the signal quality at update intervals of 1 minute (in the
idle state):
conditions are below this criterion, relocate the antenna. If the reply contains a
value of 99, the field strength cannot be determined (e.g., a power failure
occurred or the antenna is defective).
The Signal LED indicates the signal quality at update intervals of 1 minute (in the
idle state):
LED Signal
Reply of AT**SIGNAL?
Quality of Radio Link
Permanently
on
25 to 31
Optimal
60 ms
23 to 24
140 ms
21 to 22
Very good
260 ms
19 to 20
380 ms
17 to 18
Good
500 ms
15 to 16
1,000 ms
13 to 14
Adequate
0 to 12
Inadequate Î Improve location
Permanently
off
99
Cannot be determined
4.6
Login State in GSM Network
Enter AT+CREG?<CR> in the terminal window to check whether your SIM card
and the entered PIN were accepted by the GSM network. The form of the reply is
<+CREG: 0,3> -. rejected. The login state is indicated by the second parameter in
the reply.
0
and the entered PIN were accepted by the GSM network. The form of the reply is
<+CREG: 0,3> -. rejected. The login state is indicated by the second parameter in
the reply.
0
Not logged in, no search for GSM network
1
Logged in with default carrier
2
Not logged in, search for GSM network
3 Rejected
5
5
Logged in, roaming