6
2. Sketch map of mainframe interface
In order from top to bottom, left to right:
1. 2.5inch hard disk interface.
2. 5.8G antenna port × 4 (optional).
3. SIM slot, external SIM card.
4. Audio output.
5. USB×1: Connect with external USB2.0 equipment.
6. RJ-45 Ethernet interface, connected with 1000M network cable.
7. USB×2: Connect with external USB3.0 equipment.
8. VGA output.
9. HDMI output.
10. Power input.
11. COM1~ COM4 serial port, for external serial port equipment.
(COM 2/3 can be switched to RS485/ RS232)
