This is a wireless communication module, integrated an NB-IoT M8321 module that released by China Mobile, provided TD-LTE/FDD-LTE/WCDMA/TD- SCDMA/GSM/GPRS/EDGE Frequency Band and LCC+LGA package type. It has integrated plentiful Internet protocols, field standard interface, and functions, supported WindowsXP、Windows7 、Windows8、 Windows10、Linux and Android USB driver. In the LTE-4G module scheme, we added more hardware resources, 1 reserved speaker solder panel, 3 LEDs, exported USB interface, double antennea allowed. M8321 is 4V power input, so in the hardware of LTE-4G module, we added a Bidirectional Voltage-Level Translator (TXS0104E), to switch the power supply to 4V.
In telecommunication, Long-Term Evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies. It increases the capacity and speed using a different radio interface together with core network improvements.
Resolved Speaker on board(I2S)
Power Input: 5V
Serial Communication: Uart2 16/17
Tem：-40°C ~ + 85°C
Frequency Band: LTE-TDD：B38/B39/B40/B41 LTE-FDD：B1/B3/B8△ TD-SCDMA：B34/B39△ WCDMA：B1/B8△ GSM(MHz)：900/1800