I/O acquisition modules with 4 inputs / outputs NXT-A4 is a remote I/O acquisition modules
I/O acquisition modules with 4 inputs / outputs NXT-A4 is a remote I/O acquisition modules compatible with ModBus RTU (RS485) and ModBus TCP (Ethernet) protocols.
ModBus I/O acquisition module with 4 digital inputs/outputs NXT-D4 is a digital I/O remote acquisition
ModBus I/O acquisition module with 4 digital inputs/outputs NXT-D4 is a digital I/O remote acquisition module compatible with Modbus RTU (RS485) protocols.
I/O acquisition modules with 2 inputs / outputs NXT-M2 is a remote I/O acquisition module
I/O acquisition modules with 2 inputs / outputs NXT-M2 is a remote I/O acquisition module compatible with ModBus RTU (RS485) and ModBus TCP (Ethernet) protocols.
English 
