Power supply: DC 5V 1A or more than 1A.
Communication interface: a group of TTL level serial port, compatible with 3.3V 5V MCU; a group of USB interface, can be directly connected with the computer debugging.
GPS antenna interface: a group of IPXmini antenna interface, the default active GPS antenna.
GMS antenna interface: a group of IPXmini antenna interface, provided by the default PCB antenna.
SIM card interface: drawer type SIM card interface.
USB interface: USB Mini interface.
Mike: lead, voice interface interface for a 2.54*4P single row form.
Other interfaces: a group of IIC interfaces, a set of control modules can be turned on and off the interface (module default since the start).
Indicator: a 0603 LED, used to indicate the working state of the module, a 0603 LED, used to indicate the status of the network module.