4-noks Gateway Modbus USB 2018-12-17T14:02:54+00:00

Gateway Modbus USB


The USB ZigBee ZC-GW-USB-EM – Modbus Gateway is part of the range of 4-noks ZigBee devices. The purpose for which it was created is to interface a Personal Computer with the network of 4-noks ZigBee devices through the USB port and a standard protocol widely used such the Modbus/RTU.


The employment of the Modbus protocol grants an immediate use of many commercial Scada for PC.

The device is powered directly from the USB port.

General characteristics

  • EM2420 Ember Chip
  • Compatible IEEE 802.15.4
  • EmberZnet Stack 3.5.x (ZigBee PRO)
  • Modbus/RTU

RF characteristics

  • Frequency: 2405 MHz ÷ 2480 MHz
  • Modulation: DSSS
  • Nominal power transmission: 1mW (0 dBm)
  • Receiver sensitive: -92 dBm
  • External antenna gain: 5,5 dB
  • Outdoor/indoor range: 100m/30m


  • +5 Vcc from USB; 50mA


  • USB 2.0

Environment Parameters

  • Operating temperature: -10 ÷ +60°C; <80% U.R. non condensing
  • Storage temperature: -20 ÷ +70°C; <80% U.R. non condensing
  • Degree of protection: IP 50

Compliant with 2006/95/EEC, 89/336/EEC, 99/5/EEC directives, Product law applied

  • ETSI EN 300 328: Radio Compatibility for digital wide band transmissions
  • ETSI EN 301 489: Radio Compatibility
  • EN 61000-6-2: Electromagnetic Compatibility – Emissions
  • EN 61000-6-3: Electromagnetic Compatibility – Immunity
  • EN 60950-1: Electric Security
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