3U cPCI I/O & Comm Board

Model 3U cPCI 75C3

3U cPCI I/O & Comm Board

Three I/O and communication function module slots—
A variety of modules to choose from


NAI’s 75C3 is a 3U cPCI multifunction I/O and communication board with three independent function module slots. Two of the slots can be configured with a variety of I/O and communication functions; the third, with either a combination module featuring four multiplexed A/D channels and 28 Discrete I/O programmable channels, or with a reference supply. Using multiple DSPs, the enhanced motherboard enables higher processing power and dedicated pre-processing control for each module.

By eliminating the need for multiple, specialized, single-function boards, this unique design increases packaging density, saves enclosure slots, and reduces power consumption. The 75C3, a low-power/high-performance 3U cPCI board, is ideally suited for rugged defense, industrial, and commercial applications.

Preexisting, fully-tested functions can be quickly and easily combined in an unlimited number of ways. Each I/O function has dedicated processing, unburdening the system Single Board Computer (SBC) from unnecessary data management overhead.

The 75C3 includes Software Support Kits (SSKs) for multiple operating systems. In addition, SSKs are supplied with source code and board-specific library I/O APIs to facilitate system integration.

Accelerate your Time-to-Mission™ with a 3U cPCI multifunction board from NAI.

I/O Product Reference Guide


  • Support for 3 independent, intelligent function modules
  • A variety of I/O and communication modules to choose from
  • Control via either PCI Bus or Gigabit Ethernet (Gig-E) interface
  • Connections via front panel, rear panel, or both
  • Automatic Background Built-in-Test (BIT) (module dependent)
  • Software Support Kits (SSKs) and drivers available
  • Commercial and rugged models
  • Operating temperature: 0° C to 70° C commercial, -40° C to +85° C rugged


Document DownloadsDate
75C3 Data Sheet
75C3 Specifications
75C3 Operations Manual
Complete manual that includes all available function modules.
75C3 Custom Operations Manual
Abbreviated manual that includes only function modules selected in the part number.
1553 Module (Nx) Programmer's Reference Guide
75RTC3 (Rear Transition Card) Data Sheet
E7 Module Users Guide Addendum
Environmental Specifications for cPCI and VME cards
NAI Ethernet Interface for Embedded IO Boards Specification
Application Note: Encoder/Commutation Option
Quick Start Software Guide
News ItemsDate
Distributed I/O Data and Processing Architectures
Modern military platforms continue to place an ever greater reliance on electronics for their operation.
High-end Technology/High-End Relationships
Interview with Business in Focus Magazine: High-end Technology and High-end Relationships
Intelligent I/O and UUVs
Intelligent I/O eases shifting payload requirements in unmanned underwater vehicles