EM1001 Serial-over-IP Board

EM1001 as a 4-port Serial-over-IP Board

The EM1001 ships blank. You will need to upload the right SoI binary into the module.

The EM1001 is a Tibbo BASIC/C-programmable IoT board with Ethernet, as well as optional Wi-Fi* and GPRS** connectivity. The EM1001 has four independent UARTs.

The EM1001 may be uploaded with a fully functional serial-over-IP (SoI) application that turns the board into a powerful four-port serial-over-IP (SoI) device.

All three network interfaces — Ethernet, Wi-Fi, and GPRS — are fully supported by the SoI application, with automatic switchover depending on the network conditions.

As an SoI converter, the EM1001 is compatible with Tibbo Device Server Toolkit (TDST) for Windows. TDST includes the Virtual Serial Port Driver (VSPD), which enables you to use all four serial ports of the board as remote COM ports of your PC. The Linux version of the VSPD is available as well.

The board is self-sufficient — it does not require a host PCB to plug into. The RJ45 jack is mounted directly on the board. The EM1001 also contains a DC-DC regulator that can power the board and has additional current budget for external hardware.

Click here for the description of the EM1001 as a programmable board.

* Requires the GA1000 Wi-Fi add-on, which can be connected externally or piggybacked on top of the EM1001.

** Requires a standard GPRS modem (i.e. Simcom's SIM900), to be connected to the UART #4 of the EM1001.

Key Features

10/100 Base-T Ethernet port with onboard magnetics and RJ45 jack
High-performance CPU (T1000)

Optional Wi-Fi connectivity
(with the GA1000 add-on)

Optional GPRS connectivity (requires an external modem)
Onboard DC-DC regulator (8 ~ 20V in, 3.3V out); 3.3V power input and output
Onboard status LEDs and MD (setup) button



  • 10/100Base-T auto-MDIX Ethernet port with RJ45/magnetics.
  • Optional Wi-Fi interface (requires the GA1000 add-on module).
  • Can control a GPRS modem (such as the SIM900).
  • Four high-speed serial ports (CMOS-level):
    • Baudrates of up to 921,600bps;
    • None/even/odd/mark/space parity modes;
    • 7 or 8 bits/character;
    • Full-duplex mode with RTS/CTS and XON/XOFF flow control;
    • Half-duplex mode with direction control.
  • Based on the high-performance T1000 IC.
  • Three onboard LEDs:
    • Red and green status LEDs;
    • Yellow Ethernet status LED.
  • Two control lines for externally connected LEDs.
  • Onboard MD (setup) button.
  • Reliable power-on/brown-out reset circuit.
  • Powering options:
    • Through the switching regulator, 12VDC nominal (8 ~ 20V);
    • Using regulated 3.3V power (the regulator is bypassed).
  • The regulator can provide up to 1.3A @ 3.3V to external devices.
  • Power: 250mA @ 3.3V (100Base-T mode, PLL on).
  • Dimensions (LxWxH): 75x36x17.5mm*.
  • Operating temperature range: -40 ~ +70C.
  • Firmware is upgradeable through the serial port or network.
  • CE- and FCC-certified.

*Not including RJ45, power jack, GA1000.

See Also:

Files and Documentation:

SoI Firmwaresoi_application-4_10-(EM1000EV)(DS1000)(DS1002)(DS1003)-(GA1000).bin
DocumentationSerial-over-IP Solutions Manual
EM1001 Hardware Manual
CE Certificate/downloads/open/em1001-ce.pdf
FCC Certificate/downloads/open/em1001-fcc.pdf