SKU:U204




























Unit Cat1-CN is an LTE Cat.1 wireless communication unit equipped with the ML307R-DL module. It supports B1 / B3 / B5 / B8 / B34 / B38 / B39 / B40 / B41 bands, compatible with major Chinese network operators. This unit uses a UART communication interface and is controlled via AT commands, supporting TCP/IP, SSL, HTTP, and MQTT protocols. It features an onboard SMA antenna interface and Nano-SIM card slot, suitable for smart home, industrial control, healthcare, and environmental monitoring IoT applications.
| Specification | Parameter |
|---|---|
| Communication Module | ML307R-DL |
| Theoretical Speed | LTE-FDD: Max downlink 10Mbps, Max uplink 5Mbps LTE-TDD: Max downlink 9.010Mbps, Max uplink 3.096Mbps |
| Operating Bands | LTE-FDD: B1 / B3 / B5 / B8 LTE-TDD: B34 / B38 / B39 / B40 / B41 |
| Network Protocols | IPv4 / IPv6 / PING / NTP / DNS / TCP / UDP / HTTP / HTTPS / MQTT / MQTTS |
| 3GPP Standard | R13 |
| Supply Voltage | 5V |
| Communication Method | Default: UART 115200 bps@8N1, modifiable |
| Operating Power Consumption | TCP connection: TX mode (instant data): CMCC, FDD, B39: DC 5V@171.91mA; CMCC, TDD, B3: DC 5V@831.12mA Standby mode: DC 5V@9.96mA Sleep mode: DC 5V@1.48mA |
| Antenna Specification | Size 108 x 10mm, Interface Type: SMA (Male), Frequency Band: 850 ~ 2700 MHz, Gain: 3dBi, VSWR ≤ 1.5 |
| Product Size | 71.4 x 24.0 x 8.0mm |
| Product Weight | 13.1g |
| Package Size | 138.0 x 93.0 x 10.0mm |
| Gross Weight | 26.4g |
Before using Unit Cat1-CN, please make sure that a Nano-SIM card supporting LTE Cat1 network (from China Mobile, China Unicom, China Telecom, etc.) has been inserted and that data service is activated. The Nano-SIM card slot is located inside the module. Use a hex screwdriver to remove the three screws on the bottom of Unit Cat1-CN, then flip and remove the bottom cover. The card slot location is shown in the red box below:


| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.C | GND | 5V | UART_RX | UART_TX |