* LCC Form Factor (40 pins)
* 尺寸:16 × 18 × 2.3mm
* Band support:NB-IoT B3/B5/B8
* 3GPP R14
* Transmit Power:
-- NB-IoT: 23 ±2.7dBm (Power Class 3)
* Power Supply :3.1V -- 4.2V
* PSM 780nA
* eDRX(DRX:2.56s/PTW:10.24s/eDRX-value 40.96):120uA
* NB-IoT
-- Max Uplink 66 Kbps / Downlink 34 Kbps
* Operation temperature: -30°C to +75°C
-- Extreme Operating temperature: -40°C to +85°C
* Storage temperature: -40°C to +85°C
* Humidity: 5%~ 95%
* UART1
* UART2(For debug,2-wires)
* SIM interface (1.8/3.0V)
* eSIM
* RF PAD for Primary Antenna
* Reset & Power-on
* ADC
* GPIO
* WAKEUP_IN/WAKEUP_OUT
* TCP/UDP
* Embedded CoAP/OMA-LWM2M/MQTT
* China Mobile OneNET/China Telecom IOTT
*HTTP/HTTPS*
* FOTA*
* OpenCPU*
* GOSUNCN extended AT commands