20
Range
-
compliant with Date and Time format
Comments
-
this field is useful in verifying last access time and checking
internal module clock settings (RTC)
7.2.1.9. IMEI number
Function
-
displays GSM modem's IMEI number
Data type
- text
Range
-
n/a, read-only parameter
Comments
- n/a
7.2.2. General
General group encompasses parameters vital for whole module. It contains data necessary
for successful login to GSM network and parameter turning on backup battery.
Values set here have impact on module's behavior and in worst case, when chosen
improperly may even lock the module.
ATTENTION!!!
Availability of parameters described in following chapters depends on
firmware version and the superior parameters they depend on.
7.2.2.1. SIM card PIN number
Function
-
defines PIN access code for SIM module delivered by GSM
operator. For SIM modules not protected by PIN code, the
value is insignificant.
Data type
- text
Range
-
letters and numerals, max 8 characters
Default value
- 0000
Comments
-
wrong pin can cause locking of SIM module
ATTENTION!!!
Caution is vital when setting the PIN code value. Entering faulty PIN code
may cause module start-up to be impossible and lock SIM card. In latest
versions of the module, attempting to enter wrong PIN code twice renders
a third attempt impossible.
7.2.2.2. GSM band
Function
-
sets the frequency of locally-employed GSM system.
Data type
- selection
list
List
-
EU-900/1800 MHz
for areas employing 900/1800 MHz standard
US-850/1900 MHz
for areas employing 850/1900 MHz standard
Default value
-
EU-900/1800 MHz
Comments
-
Parameter active only in modules using quad-band Wavecom
WISMO Quick PLUS modem module. Setting US-850/1900 MHz
band in other modules does not have any effect