SG361 GSM/GPRS Module
SG361 GSM/GPRS Module Version 1.0 2014-02-23 Page 6 of 8
2.2 STRUCTURE
1
、
TERMINAL
TX
：
Sending end; connect to RX of RS232 interface.
RX
：
Receiving end; connect to TX of RS232 interface.
GND
：
Ground wire; connect to ground wire of RS232 interface.
B+
：
Positive power supply; voltage range: (8~32)V
B-
：
Negative power supply
2
、
NETWORK STATUS INDICATOR (RED)
LED STATUS
DESCRIPTION
Off
Not work
64ms On/800ms Off
Not registered to the network
64ms On/3000ms Off
Registered to the network
64ms On/300ms Off
GPRS communication is ok.
3
、
SIM CARD SLOT
Drawer type card slot, used for installing the SIM card
4
、
ANTENNA INTERFACE
Fit with standard SMA interface and 50
Ω matching impedance.
Connect
the
antenna
to
SMA
interface
and
then
