4G Module Air724UG DTU IOT Communication Charging Pile Scan Code Payment Remote Control MQTT 4G full network compatibility, supporting China Mobile, China Unicom, and China TelecomMaximum upload rate of 5Mbps and maximum download rate of 10Mbps for LTE-FDDSupports local and remote upgrade of DTU programsCompatible with 3.3V and 5V levelsSupports multiple network protocols including TCP, UDP, MQTT, HTTP, and Alibaba CloudNetwork standard: 4G full network compatibility, supporting China Mobile, China Unicom and China TelecomCommunication rate: ↓(1)LTE-FDD:The maximum upload rate is 5Mbps and the maximum download rate is 10Mbps(2)LTE-TDD: Uplink and downlink configuration 1.The maximum upload rate is 4Mbps and the maximum download rate is 6Mbps(3)LTE-TDD:, uplink and downlink configuration 2.The maximum upload rate is 2Mbps and the maximum download rate is 8MbpsPower supply voltage: 5-12VPower protection :TVS protectionTIL interface1 UARTBaud rate: 1200- 460,800Data bit: 8Stop positions: 1, 2Parity bit: Odd, even, no parityLocal upgrade: Supports USB update of DTU programs and log viewingRemote upgrade: Supports remote update of DTU programsSerial port uplink cache: 4KNetwork downlink cache: 4KNumber of network channels: 8Color: As ShownMaterial: PCBPackage Contents:1*4G ModuleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.