1. 
1) 
Within operating temperature range, the module is 3GPP compliant. 
2. 
2) 
Within  extended  temperature range, the module  maintains  functions such  as  SMS  and  data 
transmission, without any unrecoverable malfunction. Radio spectrum and radio network will not be 
influenced, while one or more specifications, such as Pout, may exceed the specified tolerances of 
3GPP. When the temperature returns to the normal operating temperature levels, the module will 
meet 3GPP specifications again. 
3.    "*" means under development. 
 
2.3. Functional Diagram   
 
The following figure shows a block diagram of BC660K-GL and illustrates the major functional parts.   
 
⚫  RF Transceiver and Subsystem 
⚫  Baseband 
⚫  Power Management Unit   
⚫  Peripheral Interfaces