Insys GSM Small 11-02-01-03-02.001 Benutzerhandbuch

18 

4. Installation and Initial Operation 

Attention! Measuring of the signal quality should always take place in a 

registered status with a SIM card of the provider who  is actually 
used. 
A measurement without a SIM card will due to the emergency call 
functionality always supply the value of the strongest GSM network! 

 

 
The registered status can primarily be checked through the LED GSM net. 
The query via AT command will supply further information. 
AT+CREG?<CR>

 

Response: 
+CREG: x,y 

 

x

: 

Setting of the result display; not important at this time 

 

y

: Registered 

status 

 

 

0 = not registered, no network search 

 

 

1 = registered, home network 

 

 

2 = not registered, network search active 

 

 

3 = network refuses registration 

 

 

4 = unknown 

 

 

5 = registered, roaming 

 
In case you are not registered, check with the command 
AT+CPIN?<CR>

 if the device expects the input of a PIN. 

 
Response: 
+CPIN: <status> 
 

status

: 

READY

 

no further input necessary 

SIM PIN 

Enter SIM card PIN 

SIM PUK

 

Enter PUK of the SIM card Î the PIN has been 
repeatedly entered wrong and is locked now. To 
unlock, the PUK, which you find in the contract 
documents of your GSM provider is required. Remove 
the SIM card and enter the PUK using the menu of any 
commercial mobile phone. Absolutely ensure 
afterwards that the correct PIN is used. 

 

 

 

Version  1.00 / 09.04