The network interface converter (AD-NETGW 100 GT) enables a connection to devices with serial interface vie IP-based networks (LAN). For this, the device contains a LAN connection, a RS485 interface and an AD-UART interface. An integral wide range power pack enables operation in almost all supply situations.



The AD-NETGW 100 GT makes access to measuring values and unit conditions from distant sites possible at all times. Devices can be parameterized or measuring values can be read out. For instance, this way conditions in pumping stations can be interrogated and monitored at any time. The remote maintenance of ADAMCZEWSKI devices in local networks or via the internet can be realised.

Specific characteristics

  • Ethernet 10/100 Mbit
  • Protocols: modbus/TCP, modbus-RTU, data transparency
  • RS-485 interface for field devices
  • Integrated web server for configuration
  • Password protected configuration

Business data

Order number
AD-NetGw 100 GT
Customs tariff number / country of origin 8536 90 85 / Deutschland


Technical specifications

LAN 10/100 Mbit
Protocol TCP/IP
Addressing IP4
DHCP Can be deactivated
IP standard address
Access port 80
Password protection Configuration / webserver
Baud rate 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76800
Data format 8N1, 8E1, 8O1
Max. bus users 32
Bus termination 120 ohms both sides at the end
Max. length of bus 500 m (no stubs)
Cable Twisted and shielded
Baud rate 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76800
Data format 8N1, 8E1, 8O1
Voltage range AC 50 ... 253 V AC, 50/60 Hz
Nominal voltage AC 230 V AC
Voltage range DC 20 ... 253 V DC
Nominal voltage DC 24 V DC
Input power AC/DC 1,8 VA / 1 W
Dimensions (WxHxD) 35,5 x 90 x 58 mm
Type of protection IP 20
Connection method Screw clamp
Terminals, wire cross section 2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals 0,6 Nm
Skinning length 6 mm
Weight ~ 90 g
Manner of fastening 35 mm DIN rail 35mm
Environmental conditions
Ambient temperature -10 ... 50 °C
Storage and transport -10 ... 70 °C (no condensation)
Product family standard EN 61326-1 1)
Emitted interference EN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standard EN 61010-1
Overvoltage category II
Pollution degree 2
Galvanic isolation, test voltages
Supply line to all interfaces 3 kV, 50 Hz (1 min.)
Ethernet to AD-UART/RS-485 1,5 kV, 50 Hz (1 min.)
Protection circuits
Interfaces Electrical surge protection
Power supply Protection against over-temperature, over-voltage and over-current
1)During checking, communication errors are possible.

Block and wiring diagram




Circuit examples


CAD / CAE Daten

CAD model is not yet available for this product.

The CAD product overview can be found at:


On the network side, the device has 6 freely usable TCP channels, so-called sockets. Each of these channels can be configured freely. Also, this way up to 6 simultaneous network enquiries can be processed (i.e. of Modbus-TCP masters). For each channel, port number, bridge functions and timeout can be set. The data transport path such as Modbus-TCP can be determined on RS485 modbus RTU via the bridge functions. The date interfaces work simultaneous and independent of each other. The setting up of the serial interfaces is possible in different tapes of protocol. The connection of any device with serial interface is, of course, also possible due to the transparent router function. Ready for operation is indicated by the green illuminated diode at the LAN socket when the network cable is plugged in. The device configuration is carried out via the web server integral in the device. Here, all settings can be carried out manually via one surface. Alternatively, the device can be set up with the PC software "AD-Studio" via the AD-UART interface. Apart from the protocol conversion Modbus-TCP to Modbus-RTU, a data transparent connection can also be selected. With this, any devices with the most diverse protocols can be tied to IP networks. Already at the initial commissioning via the web interface, a password for the web surface is essential. This password is activated during the initial use of the set-up surface and will be asked for again with each new session.

Accessories (not included)

The voltage multiplier AD-SV 1224 GL is suitable for operation with 12V supply voltages. For connection to ADAMCZEWSKI devices with AD-UART interface, an adapter cable, 6 polar on a jack, is available.

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