View of the GTM-201-RS232 and GTM-201-USB Panel  
     
  GTM-201-RS232 :  
   
     
  GTM-201-USB :  
   
     
  Pin Assignments  
 
SW1-Operation Mode
None
No Handshaking
3-wire RS-232
RTS/CTS
Hardware Handshaking
9-wire RS-232
RESET
RST+
RST-
Frame Ground
F.G.
Power Input:+10 ~ 30VDC
DC.GND
DC.+VS
 
     
  Digital Input Wire Connection  
   
     
  Reset Wire Connection  
 
Input Type
Reset State ON
Reset State OFF
Reset Input
 
 
Reset Input
ON Voltage Level
+3.5 VDC ~ +30 VDC
OFF Voltage Level
+1 VDC max.
 
     
 
  • Timing of restart modem
  
   
     
  SIM card Installation  
   
     
  GPRS/GSM Antenna Installation  
   
     
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