NIM-4

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

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. 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.

ENVIRONMENTAL CHARACTERISTICS
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
ELECTRICAL CHARACTERISTICS
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
OPERATOR INTERFACE
Status Readout One three-color (red/yellow/green) LED Indicator
IR Wireless Interface 115kbps SIR
PHYSICAL CHARACTERISTICS
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).

The following base module part numbers include the enclosure with EMI wiring glands, active board, and wiring hub:

Fairmount Part Number

Description

NIM-4 or 01012-010 Chameleon RS-232 Network Interface Module Type-4

Spare/Replacement Parts:

Fairmount Part Number

Description

11030-202 Chameleon RS-232 Network Interface Module (NIM-4) Active Board and Half-Size Cover — Replacement faceplate for NIM-1
11032-100 Chameleon RS-232 Network Interface Module (NIM-4) Wiring Hub Assembly — Replacement W/H for NIM-4

See the Selection and Ordering Guide for additional information.