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M303 USB Cellular Modem

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M303 family industrial 3G/4G cellular Modem with USB interface is the modem that provides SMS and dial-up function by 2G/3G/4G Cellular network cater for industrial application requirement.

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Wlink M303 family industrial 3G cellular Modem with USB 2.0 interface is the model that provides SMS and dial-up function by 3G/4G Cellular network cater for industrial application requirement.
The modem which supports up to 100Mbps downlink speed and 50Mbps uplink speed service can utilize the 4G/3G network for convenient and inexpensive data transfer from remote instruments, meters, computers or control systems in packet data. Due to the performance industrial module, robust metal case and a wide operating temperature range, this model is well suitable for industrial application.

Industrial Class Design

  • High-powered Industrial cellular module provide the strong anti-jamming ability

  • PCB comply to 3H and 3W

  • Wide range Voltage power supply

Flexibility and Convenience

  • Support standard USB 2.0 interface that can plug into industrial PC or end USB device

  • Plug & Play solution for quick and easy integration , flexible and reliable

  • Control the power on/off by interface control line, easy for user device to control the operation of the modem

Stability and Reliability

  • The modem support serial I/O hardware reset to ensure always online

  • Link detection and watch-dog design, support WDT to ensure always online transmission

  • UIM/SIM SIM card ESD Protection: 1.8V/3V Standard

  • USB 2.0 Interface ESD protection

  • Robust Metal Case and anti-lightning protection

  • Provide IP30 protection


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