Enfora MLG0208PB001 ユーザーズマニュアル

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Enfora Enabler II-G Assisted GPS 
Modem Integration Guide 
Requires TCP/IP stack 
 
 
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Table 3 - Modem Library Configurations 
10.5.1.  Using Port Library  
 
Figure  provides the architecture for Port Library access. 
 
 
Figure 19 Using Port Library 
 
Port Libraries provide the most basic modem access services.  It converts modem control 
messages to either UDP SLIP or UDP PPP, and vice versa.  SLIP access is not currently 
available.
 
 
Modem Control 
Message 
 
 
 
 
Ú
 
SLIP 
Header 
IP 
Header 
UDP 
Header 
Modem Control 
Message 
SLIP End 
 
 
 
 
 
 
Or 
PPP 
Header 
IP Header 
UDP 
Header 
Modem Control 
Message 
PPP End 
 
 
10.5.2.  Using Messaging Library  
 
Figure  provides the architecture for Messaging Library access. 
 
 
Figure 20 Using Messaging Library 
 
MLG0208PB001 
51 
Version1.01 – 10/3/2006