User's Manual

Smart Machine Smart Decision
Figure 8: Power interface
When a valid power appears the terminal will power up automatic, for the MCU that inside the terminal processed
the power up part, MCU also acts as a Watch Dog, when the terminal runs wrong, MCU will cut off the power
and recover it immediately to restart the terminal.
6.2 Serial Interface
T5320+G provides one asynchronous RS232 serial port (female).The RS232 standard interface serves to connect
a PC, Data Terminal Equipment (DTE) or other application, which acts as host controller of the T5320+G
Terminal with all its functions. Through the RS232 interface it can be used as GSM/GPRS modem for sending
and receiving of SMS, Data and Fax calls.
Figure 9: Pin assignment RS-232 (D-Sub 9-pole female)
Table 4: 9-pole D-Sub (female) RS-232
Pin no Signal name I/O Function
1 DCD O Data Carrier Detected
T5320+G_User Guide_V1.01 16 2013-04-15