Enfora GSM2218 ユーザーズマニュアル

 

 

GSM2218PB001MAN - GSM/GPRS MT-GL User Manual 

Page 15 

Copyright 2005, Enfora L.P 

 
The user must supply the GPS antenna. The GPS receiver inside the MT-GL powers the pre-amplifier 
in the GPS antenna (Active-style) by applying a power of 3.3 Volts to the center conductor of the RF 
input to the GPS receiver. If a passive-style GPS antenna must be used, please verify that it has a 
DC block installed in order to prevent shorting to ground. GPS antenna connector on the MT-GL 
model is a SMA female connector. The GPS antenna must be placed in an area where it can have 
direct view of the sky. 
 
The GPS antenna must be connected to the connector labeled “GPS ANT”.  See Figure 12 - GPS 
Antenna Connection. 
 
 

User must disconnect power before connecting the 
GPS antenna