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E840-DTU (GPRS-03) industrial grade quad-band GSM/GPRS digital radio serial port devices and network servers to transmit data

[Transmission Type]:GPRS

[Power]:30~33dBm

[Size]: 84*82*25mm

[Interface]: RS485/RS232

[Weight]:136±5g

[Introduction]:E840-DTU (GPRS-03) is a product developed for serial port devices and network servers to transmit data through each other through the network. This product uses the standard AT command, which enables transparent transmission between devices and servers. The cloud platform built by Ebyte can realize the free networking mode.

1
Pin No. Pin Item Pin Application
1 RS232 RS232 interface
2 485_A Side A of eternal interface for other RS485 devices
3 485_B Side B of eternal interface for other RS485 devices
4 GND Ground
5 VCC Power supply 8V-28V DC
6 PWR Power indicator
7 WORK UART communication indicator
8 NEL Radio network working indicator, no light:Initializing, slow flashing: access to the base station, fast flashing:initialization is not successful, always on: access server
9 DC8~28V Power adaptor interface, range: 8~28V
10 RST Reset(downward,reset)
11 Restore The radio operating DIP switch (downward, factory reset) needs to be operated in 3s-10s.
12 SIM For SIM card
13 ANT Antenna (SMA-K ,50Ω impedance match)