AI-NB25 Development Kit
Manual
AI-Link Confidential
2.3. Interface distribution diagram
The following is the interface distribution diagram of AI-NB25-EVB
.
Figure 2
：
AI-NB25-EVB interface distribution
Table 2: list of interfaces
Type Location Description
Power Input I/O AT_CMD Port USB power supply interface
Arduino Interface
Arduino power supply interface
USB interface
J1 J2 J3 J4 J5 J6
Support 3 groups serial ports
Jumpers Option J1: Gennie port, J2/J3: AT_CMD port, J4/J5/J6: Extended UART port
AT_CMD Port Main serial port, for AT command transmission
Gennie Port
NB-IoT Debug Port for GKI/HST logs
Extended UART Port Auxiliary serial port, for communications with extended MCU
USIM interface
S1
Micro (U)SIM socket
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