RS-232 Network Interface Module Type 4+ (NIM-4+)

Features and Benefits

  • Isolated RS-232 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
  • Multiple NIMs Can Be Combined to Form Gateway, Bridge, Routing, and/or Redundant Connection Functionality
  • Selectable Baud Rates from 75 bps to 256 kbps
  • -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 (Pending) for Electro-Magnetic Interference (EMI)
  • Supports Hot Swapping
  • Significantly faster microprocessors and increased memory
  • Cyber security enhancements including secure boot with firmware and configuration validation, intrusion detection, role-based authentication control (RBAC), hardware validation, encrypted files/communication, trust groups, and historical logging with evidence of critical events
  • USB ports that may be used for configuration and/or computer-less programming

The Chameleon RS-232 Network Interface Module (NIM-4+) offers communications using FairNET, Modbus ASCII (master and slave), Modbus RTU (master and slave), Custom ASCII, or Custom Binary protocols. FairNET provides both deterministic and non-deterministic messaging, automatic bus mediation, and a robust master-slave architecture.

As with all Chameleon modules, NIM-4+ units are hot-swappable: 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 or to detach connectors. They also provide unequaled ruggedness. It is powered by a modern cyber-secure processor with computational power to handle the most demanding applications. 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.

Operating Ambient Temperature Range -40°C to 65°C
Storage/Transport Ambient Temperature Range -40°C to 85°C
High Impact Shock MIL-STD-901D, Grade A
Mechanical Vibration MIL-STD-167B, 0-50Hz
Electro-Magnetic Interference MIL-STD-461E (Pending)
Facial/Housing Protection NEMA 1,2,4,4X,5,6,12,12K,13
Maximum Power Consumption 2.8W
Maximum Baud Rate 256 Kbit / Second
Electrostatic Discharge Protection +/- 15 KV Human Body Model
Signal Electrical Isolation from Control Circuitry 1500 VDC
Handshaking Signals CTS, RTS, DTR, and DSR
Supported Cable Diameters Two glands 0.24”-0.47”; two glands 0.16”-0.31”
Supported Wire Gauges 16-28 AWG
Status Readout One three-color (red/yellow/green) LED Indicator
IR Wireless Interface 115kbps SIR
Weight 1.3 lbs
Front Panel Dimensions 2.5” W x 6” L
Enclosure Height 3″ H

The following part numbers can be used when ordering the RS-232 Network Interface Module Type 4+ (NIM-4+).

Fairmount Part Number Description
01012-410 NIM-4+ with Gray Enclosure
01012-710 NIM-4+ with Black Enclosure (without Stuffing Tubes)
01014-410 NIM-4+ Half-Size Gray Enclosure with Wiring Hub Assembly
01014-710 NIM-4+ Half-Size Back Enclosure with Wiring Hub Assembly (without Stuffing Tubes)
11132-202 NIM-4+ Active Board and Gray Cover
11132-252 NIM-4+ Active Board and Black Cover