Two road GPS antenna interface, IPX interface and SMA interface, can be connected to the active antenna and passive antenna.
• Two road GSM antenna interface, IPX interface and SMA interface.
• a voice interface, a Mike interface
• The board LDO power supply, the input voltage is 5--32V. Note that, when the input voltage is less than 9V, please ensure that the power supply can provide 2A current. Another way power supply port 3.5--4.2V input (suitable for lithium battery power supply).
• Two road TTL level interface, perfect compatible with 5V 3.3V TTL level system.
• Chip important pin all leads.