Siemens XT55 사용자 설명서

XT55 AVL Software Instructions User’s Guide 
Confidential/Preliminary 

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XT55_avl_ug_V01 

Page 6 of 20 

15.03.2004 

Figure 1 shows an example of a practical application. 
 

 

 

Figure 1: Simplified presentation of the AVL client-server architecture.  

 
The connected GSM modem enables the communication to the XT55 (server side). 
 

Please use the following hardware configuration to ensure the proper operation of the AVL 
application (see Figure 2). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Figure 2: Block diagram of XT55 with AVL application