The Chameleon RS-485 Network Interface Module (NIM-1) offers high-speed communications using FairNET, Modbus ASCII, Modbus RTU, Custom ASCII, or Custom Binary protocols. FairNET provides both deterministic and non-deterministic messaging, automatic bus mediation, and a robust master-slave architecture.

You can network up to 256 NIM-1 modules and achieve data rates as high as 1 Mbit per second. NIM-1 units have built-in biasing and termination circuitry for easy and reliable network configuration.

As with all Chameleon modules, NIM-1 units are hot-swappable: should the need arise to replace one, you can simply swap the front panel (with attached processing board) and the unit is back online—there is no need to shut off the power and there is no need to detach connectors. They also provide unequaled ruggedness. They are specifically designed for sustained operation in severe environments, including those characterized by extreme shock, vibration, electro-magnetic interference, temperature, and/or humidity. Its fully-sealed enclosure (sealing end-caps not pictured) ensures long-lasting operation in the grimiest settings.

Features and Benefits
 

• 2-Wire Isolated RS-485 Interface with Selectable On-board Biasing and Termination

• Protocols: Master or Slave Modbus RTU/ASCII, Master or Slave FairNET, and Custom ASCII or Binary Messaging

• Network Configuration Tools Integrated in Design Pad G3

• Multiple NIMs Can Be Combined to Form Gateway, Bridge, Routing, and/or Redundant Connection Functionality

• Selectable Baud Rates from 75 bps to 1 Mbps

• -40°C to +65°C (-40°F to +149°F) Operating Range

• MIL-STD-901D Grade A for High Impact Shock

• MIL-STD-167B for Vibration

• MIL-STD-461E for Electro-Magnetic Interference (EMI)

• Supports Hot Swapping

RS-485 Network Interface Module Type 1 (NIM-1)